./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer --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 031d18bfb1e842ee5acf1572aa68f5278b9a3fdf .................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer --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 031d18bfb1e842ee5acf1572aa68f5278b9a3fdf ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (concat (_ BitVec 32) (_ BitVec 32) (_ BitVec 64)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:15:49,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:15:49,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:15:49,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:15:49,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:15:49,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:15:49,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:15:49,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:15:49,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:15:49,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:15:49,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:15:49,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:15:49,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:15:49,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:15:49,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:15:49,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:15:49,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:15:49,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:15:49,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:15:49,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:15:49,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:15:49,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:15:49,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:15:49,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:15:49,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:15:49,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:15:49,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:15:49,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:15:49,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:15:49,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:15:49,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:15:49,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:15:49,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:15:49,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:15:49,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:15:49,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:15:49,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:15:49,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:15:49,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:15:49,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:15:49,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:15:49,942 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:15:49,985 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:15:49,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:15:49,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:15:49,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:15:49,988 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:15:49,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:15:49,988 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:15:49,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:15:49,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:15:49,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:15:49,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:15:49,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:15:49,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:15:49,991 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:15:49,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:15:49,991 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:15:49,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:15:49,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:15:49,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:15:49,992 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:15:49,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:15:49,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:15:49,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:15:49,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:15:49,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:15:49,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:15:49,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:15:49,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:15:49,995 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:15:49,995 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:/tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 031d18bfb1e842ee5acf1572aa68f5278b9a3fdf [2020-11-28 03:15:50,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:15:50,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:15:50,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:15:50,348 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:15:50,349 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:15:50,350 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2020-11-28 03:15:50,426 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/data/9b6d43b32/57b4067a6780464d8b719210c0912364/FLAG560a190dd [2020-11-28 03:15:50,958 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:15:50,958 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2020-11-28 03:15:50,965 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/data/9b6d43b32/57b4067a6780464d8b719210c0912364/FLAG560a190dd [2020-11-28 03:15:51,290 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/data/9b6d43b32/57b4067a6780464d8b719210c0912364 [2020-11-28 03:15:51,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:15:51,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:15:51,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:51,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:15:51,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:15:51,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:51" (1/1) ... [2020-11-28 03:15:51,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d69c5b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:51, skipping insertion in model container [2020-11-28 03:15:51,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:51" (1/1) ... [2020-11-28 03:15:51,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:15:51,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:15:51,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:51,630 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:15:51,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:51,715 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:15:51,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:51 WrapperNode [2020-11-28 03:15:51,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:51,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:51,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:15:51,719 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:15:51,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:51" (1/1) ... [2020-11-28 03:15:51,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:51" (1/1) ... [2020-11-28 03:15:51,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:51,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:15:51,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:15:51,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:15:51,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:51" (1/1) ... [2020-11-28 03:15:51,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:51" (1/1) ... [2020-11-28 03:15:51,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:51" (1/1) ... [2020-11-28 03:15:51,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:51" (1/1) ... [2020-11-28 03:15:51,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:51" (1/1) ... [2020-11-28 03:15:51,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:51" (1/1) ... [2020-11-28 03:15:51,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:51" (1/1) ... [2020-11-28 03:15:51,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:15:51,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:15:51,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:15:51,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:15:51,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/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 [2020-11-28 03:15:51,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:15:51,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:15:51,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-28 03:15:51,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:15:51,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-28 03:15:51,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:15:51,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:15:51,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:15:51,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:15:52,293 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:15:52,293 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-28 03:15:52,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:52 BoogieIcfgContainer [2020-11-28 03:15:52,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:15:52,297 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:15:52,297 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:15:52,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:15:52,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:15:51" (1/3) ... [2020-11-28 03:15:52,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6fc4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:52, skipping insertion in model container [2020-11-28 03:15:52,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:51" (2/3) ... [2020-11-28 03:15:52,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6fc4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:52, skipping insertion in model container [2020-11-28 03:15:52,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:52" (3/3) ... [2020-11-28 03:15:52,304 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a.c [2020-11-28 03:15:52,324 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:15:52,328 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:15:52,361 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:15:52,425 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:15:52,426 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:15:52,426 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:15:52,426 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:15:52,426 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:15:52,426 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:15:52,427 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:15:52,427 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:15:52,445 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-28 03:15:52,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:15:52,451 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:52,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:52,453 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:52,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:52,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2020-11-28 03:15:52,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:52,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619435107] [2020-11-28 03:15:52,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:52,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:52,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:52,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619435107] [2020-11-28 03:15:52,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:52,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:15:52,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182246222] [2020-11-28 03:15:52,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:15:52,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:15:52,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:15:52,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:15:52,691 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-28 03:15:52,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:52,717 INFO L93 Difference]: Finished difference Result 65 states and 103 transitions. [2020-11-28 03:15:52,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:15:52,719 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-28 03:15:52,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:52,741 INFO L225 Difference]: With dead ends: 65 [2020-11-28 03:15:52,748 INFO L226 Difference]: Without dead ends: 30 [2020-11-28 03:15:52,752 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 [2020-11-28 03:15:52,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-28 03:15:52,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-28 03:15:52,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-28 03:15:52,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-11-28 03:15:52,805 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2020-11-28 03:15:52,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:52,805 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-11-28 03:15:52,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:15:52,806 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-28 03:15:52,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:15:52,807 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:52,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:52,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:15:52,809 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:52,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:52,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2020-11-28 03:15:52,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:52,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483099944] [2020-11-28 03:15:52,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:52,886 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:52,957 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:53,006 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:15:53,012 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:15:53,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:15:53,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:15:53 BoogieIcfgContainer [2020-11-28 03:15:53,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:15:53,065 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:15:53,065 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:15:53,065 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:15:53,066 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:52" (3/4) ... [2020-11-28 03:15:53,070 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:15:53,070 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:15:53,073 INFO L168 Benchmark]: Toolchain (without parser) took 1777.66 ms. Allocated memory was 90.2 MB in the beginning and 121.6 MB in the end (delta: 31.5 MB). Free memory was 62.0 MB in the beginning and 79.3 MB in the end (delta: -17.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:53,074 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 90.2 MB. Free memory is still 46.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:53,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.64 ms. Allocated memory is still 90.2 MB. Free memory was 61.9 MB in the beginning and 66.7 MB in the end (delta: -4.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:53,076 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.86 ms. Allocated memory is still 90.2 MB. Free memory was 66.7 MB in the beginning and 65.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:53,077 INFO L168 Benchmark]: Boogie Preprocessor took 32.13 ms. Allocated memory is still 90.2 MB. Free memory was 65.1 MB in the beginning and 63.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:53,078 INFO L168 Benchmark]: RCFGBuilder took 474.08 ms. Allocated memory is still 90.2 MB. Free memory was 63.7 MB in the beginning and 44.1 MB in the end (delta: 19.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:53,080 INFO L168 Benchmark]: TraceAbstraction took 767.73 ms. Allocated memory was 90.2 MB in the beginning and 121.6 MB in the end (delta: 31.5 MB). Free memory was 43.7 MB in the beginning and 79.9 MB in the end (delta: -36.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:53,082 INFO L168 Benchmark]: Witness Printer took 5.24 ms. Allocated memory is still 121.6 MB. Free memory was 79.9 MB in the beginning and 79.3 MB in the end (delta: 586.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:53,095 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 90.2 MB. Free memory is still 46.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 422.64 ms. Allocated memory is still 90.2 MB. Free memory was 61.9 MB in the beginning and 66.7 MB in the end (delta: -4.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.86 ms. Allocated memory is still 90.2 MB. Free memory was 66.7 MB in the beginning and 65.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.13 ms. Allocated memory is still 90.2 MB. Free memory was 65.1 MB in the beginning and 63.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 474.08 ms. Allocated memory is still 90.2 MB. Free memory was 63.7 MB in the beginning and 44.1 MB in the end (delta: 19.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 767.73 ms. Allocated memory was 90.2 MB in the beginning and 121.6 MB in the end (delta: 31.5 MB). Free memory was 43.7 MB in the beginning and 79.9 MB in the end (delta: -36.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.24 ms. Allocated memory is still 121.6 MB. Free memory was 79.9 MB in the beginning and 79.3 MB in the end (delta: 586.1 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 shiftRight at line 43, overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 93, overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryDOUBLEComparisonOperation at line 97. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double x = -0.0; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L32] COND FALSE !(j0 < 0) [L43] i = (0x000fffff) >> j0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L44] COND TRUE ((i0 & i) | i1) == 0 [L45] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L94] double res = ceil_double(x); [L97] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L3] __assert_fail("0", "double_req_bl_1092a.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:15:55,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:15:55,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:15:55,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:15:55,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:15:55,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:15:55,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:15:55,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:15:55,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:15:55,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:15:55,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:15:55,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:15:55,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:15:55,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:15:55,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:15:55,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:15:55,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:15:55,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:15:56,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:15:56,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:15:56,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:15:56,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:15:56,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:15:56,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:15:56,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:15:56,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:15:56,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:15:56,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:15:56,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:15:56,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:15:56,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:15:56,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:15:56,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:15:56,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:15:56,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:15:56,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:15:56,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:15:56,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:15:56,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:15:56,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:15:56,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:15:56,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-28 03:15:56,084 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:15:56,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:15:56,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:15:56,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:15:56,088 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:15:56,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:15:56,089 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:15:56,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:15:56,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:15:56,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:15:56,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:15:56,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:15:56,091 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 03:15:56,091 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 03:15:56,091 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:15:56,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:15:56,092 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:15:56,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:15:56,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:15:56,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:15:56,093 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:15:56,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:15:56,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:15:56,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:15:56,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:15:56,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:15:56,094 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 03:15:56,094 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 03:15:56,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:15:56,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:15:56,095 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:15:56,095 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:/tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 031d18bfb1e842ee5acf1572aa68f5278b9a3fdf [2020-11-28 03:15:56,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:15:56,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:15:56,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:15:56,526 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:15:56,527 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:15:56,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2020-11-28 03:15:56,598 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/data/0dafbde32/11ee0790e3664a3c805fe00d48274aaa/FLAG3e99cc880 [2020-11-28 03:15:57,093 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:15:57,097 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/sv-benchmarks/c/float-newlib/double_req_bl_1092a.c [2020-11-28 03:15:57,106 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/data/0dafbde32/11ee0790e3664a3c805fe00d48274aaa/FLAG3e99cc880 [2020-11-28 03:15:57,431 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/data/0dafbde32/11ee0790e3664a3c805fe00d48274aaa [2020-11-28 03:15:57,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:15:57,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:15:57,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:57,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:15:57,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:15:57,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:57" (1/1) ... [2020-11-28 03:15:57,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55683042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:57, skipping insertion in model container [2020-11-28 03:15:57,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:57" (1/1) ... [2020-11-28 03:15:57,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:15:57,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:15:57,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:57,637 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:15:57,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:57,741 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:15:57,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:57 WrapperNode [2020-11-28 03:15:57,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:57,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:57,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:15:57,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:15:57,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:57" (1/1) ... [2020-11-28 03:15:57,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:57" (1/1) ... [2020-11-28 03:15:57,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:57,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:15:57,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:15:57,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:15:57,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:57" (1/1) ... [2020-11-28 03:15:57,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:57" (1/1) ... [2020-11-28 03:15:57,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:57" (1/1) ... [2020-11-28 03:15:57,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:57" (1/1) ... [2020-11-28 03:15:57,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:57" (1/1) ... [2020-11-28 03:15:57,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:57" (1/1) ... [2020-11-28 03:15:57,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:57" (1/1) ... [2020-11-28 03:15:57,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:15:57,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:15:57,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:15:57,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:15:57,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/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 [2020-11-28 03:15:57,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-28 03:15:57,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-28 03:15:57,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 03:15:57,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:15:57,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 03:15:57,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:15:57,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:15:57,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 03:15:57,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:15:59,519 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:15:59,520 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-28 03:15:59,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:59 BoogieIcfgContainer [2020-11-28 03:15:59,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:15:59,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:15:59,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:15:59,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:15:59,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:15:57" (1/3) ... [2020-11-28 03:15:59,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ffc3d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:59, skipping insertion in model container [2020-11-28 03:15:59,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:57" (2/3) ... [2020-11-28 03:15:59,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ffc3d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:59, skipping insertion in model container [2020-11-28 03:15:59,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:59" (3/3) ... [2020-11-28 03:15:59,531 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a.c [2020-11-28 03:15:59,543 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:15:59,547 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:15:59,560 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:15:59,585 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:15:59,586 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:15:59,586 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:15:59,586 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:15:59,586 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:15:59,587 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:15:59,587 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:15:59,587 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:15:59,599 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-28 03:15:59,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:15:59,605 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:59,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:15:59,606 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:15:59,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:59,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2020-11-28 03:15:59,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:15:59,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745385502] [2020-11-28 03:15:59,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/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 [2020-11-28 03:15:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:59,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 03:15:59,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:59,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:59,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:15:59,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:59,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745385502] [2020-11-28 03:15:59,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:15:59,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 03:15:59,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735909061] [2020-11-28 03:15:59,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:15:59,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:15:59,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:15:59,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:15:59,785 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-28 03:15:59,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:15:59,818 INFO L93 Difference]: Finished difference Result 65 states and 103 transitions. [2020-11-28 03:15:59,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:15:59,819 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-28 03:15:59,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:15:59,833 INFO L225 Difference]: With dead ends: 65 [2020-11-28 03:15:59,834 INFO L226 Difference]: Without dead ends: 30 [2020-11-28 03:15:59,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:15:59,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-28 03:15:59,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-28 03:15:59,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-28 03:15:59,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-11-28 03:15:59,876 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2020-11-28 03:15:59,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:15:59,877 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-11-28 03:15:59,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:15:59,878 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-28 03:15:59,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:15:59,879 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:59,879 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:16:00,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 03:16:00,098 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:16:00,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:16:00,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2020-11-28 03:16:00,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:16:00,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886057089] [2020-11-28 03:16:00,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-28 03:16:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:16:00,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 03:16:00,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:16:00,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:16:00,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:16:00,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:16:00,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886057089] [2020-11-28 03:16:00,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:16:00,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-28 03:16:00,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037916449] [2020-11-28 03:16:00,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:16:00,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:16:00,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:16:00,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:16:00,486 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 8 states. [2020-11-28 03:16:00,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:16:00,940 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2020-11-28 03:16:00,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:16:00,941 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-28 03:16:00,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:16:00,942 INFO L225 Difference]: With dead ends: 37 [2020-11-28 03:16:00,942 INFO L226 Difference]: Without dead ends: 16 [2020-11-28 03:16:00,943 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:16:00,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-28 03:16:00,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-28 03:16:00,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 03:16:00,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-11-28 03:16:00,948 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 11 [2020-11-28 03:16:00,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:16:00,948 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-11-28 03:16:00,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:16:00,948 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-11-28 03:16:00,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 03:16:00,949 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:16:00,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:16:01,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 03:16:01,150 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:16:01,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:16:01,150 INFO L82 PathProgramCache]: Analyzing trace with hash -713684991, now seen corresponding path program 1 times [2020-11-28 03:16:01,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:16:01,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912244296] [2020-11-28 03:16:01,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-28 03:16:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:16:01,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:16:01,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:16:01,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:16:01,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:16:02,103 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-28 03:16:02,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:16:02,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912244296] [2020-11-28 03:16:02,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:16:02,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-28 03:16:02,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509705966] [2020-11-28 03:16:02,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:16:02,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:16:02,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:16:02,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:16:02,361 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 6 states. [2020-11-28 03:16:02,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:16:02,895 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-11-28 03:16:02,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:16:02,905 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-28 03:16:02,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:16:02,905 INFO L225 Difference]: With dead ends: 23 [2020-11-28 03:16:02,905 INFO L226 Difference]: Without dead ends: 16 [2020-11-28 03:16:02,906 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:16:02,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-28 03:16:02,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-28 03:16:02,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 03:16:02,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-11-28 03:16:02,910 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 14 [2020-11-28 03:16:02,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:16:02,910 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-11-28 03:16:02,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:16:02,910 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-11-28 03:16:02,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 03:16:02,911 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:16:02,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:16:03,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 03:16:03,114 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:16:03,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:16:03,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1568599403, now seen corresponding path program 1 times [2020-11-28 03:16:03,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:16:03,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766656227] [2020-11-28 03:16:03,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5e644f57-e59b-4d3a-98f8-79b23b9a838d/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-28 03:16:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:16:03,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 03:16:03,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:16:03,323 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2020-11-28 03:16:03,337 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-28 03:16:03,340 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:16:03,341 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:16:03,348 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:16:03,348 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:16:03,348 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:50, output treesize:20 [2020-11-28 03:16:03,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:16:03,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:16:03,505 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2020-11-28 03:16:03,508 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-28 03:16:03,513 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:16:03,513 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:16:03,518 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:16:03,518 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:16:03,518 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:15 [2020-11-28 03:16:03,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:16:03,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766656227] [2020-11-28 03:16:03,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:16:03,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2020-11-28 03:16:03,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758040816] [2020-11-28 03:16:03,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:16:03,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:16:03,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:16:03,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:16:03,580 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 12 states. [2020-11-28 03:16:04,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:16:04,039 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-11-28 03:16:04,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:16:04,039 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-11-28 03:16:04,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:16:04,040 INFO L225 Difference]: With dead ends: 16 [2020-11-28 03:16:04,040 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:16:04,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-11-28 03:16:04,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:16:04,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:16:04,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:16:04,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:16:04,041 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-28 03:16:04,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:16:04,041 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:16:04,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:16:04,041 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:16:04,041 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:16:04,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 03:16:04,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:16:04,552 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2020-11-28 03:16:04,555 INFO L274 CegarLoopResult]: For program point L60(lines 60 61) no Hoare annotation was computed. [2020-11-28 03:16:04,555 INFO L274 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-11-28 03:16:04,555 INFO L277 CegarLoopResult]: At program point L102(lines 85 103) the Hoare annotation is: true [2020-11-28 03:16:04,555 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:16:04,555 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 03:16:04,556 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:16:04,556 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:16:04,556 INFO L274 CegarLoopResult]: For program point L53(lines 53 75) no Hoare annotation was computed. [2020-11-28 03:16:04,556 INFO L274 CegarLoopResult]: For program point L37(lines 37 40) no Hoare annotation was computed. [2020-11-28 03:16:04,557 INFO L274 CegarLoopResult]: For program point L62(lines 62 74) no Hoare annotation was computed. [2020-11-28 03:16:04,557 INFO L274 CegarLoopResult]: For program point L54(lines 54 57) no Hoare annotation was computed. [2020-11-28 03:16:04,557 INFO L274 CegarLoopResult]: For program point L46(lines 46 51) no Hoare annotation was computed. [2020-11-28 03:16:04,557 INFO L274 CegarLoopResult]: For program point L63(lines 63 72) no Hoare annotation was computed. [2020-11-28 03:16:04,558 INFO L274 CegarLoopResult]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2020-11-28 03:16:04,558 INFO L274 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-11-28 03:16:04,559 INFO L274 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2020-11-28 03:16:04,559 INFO L274 CegarLoopResult]: For program point L97(lines 97 100) no Hoare annotation was computed. [2020-11-28 03:16:04,560 INFO L274 CegarLoopResult]: For program point L64(lines 64 71) no Hoare annotation was computed. [2020-11-28 03:16:04,560 INFO L274 CegarLoopResult]: For program point L31(lines 31 75) no Hoare annotation was computed. [2020-11-28 03:16:04,561 INFO L274 CegarLoopResult]: For program point L32(lines 32 52) no Hoare annotation was computed. [2020-11-28 03:16:04,561 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:16:04,561 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:16:04,561 INFO L274 CegarLoopResult]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2020-11-28 03:16:04,561 INFO L270 CegarLoopResult]: At program point L24-2(lines 24 29) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ~huge_ceil~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= ULTIMATE.start_main_~x~0 .cse0) (= currentRoundingMode roundNearestTiesToEven) (= .cse0 ULTIMATE.start_ceil_double_~x))) [2020-11-28 03:16:04,561 INFO L274 CegarLoopResult]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2020-11-28 03:16:04,562 INFO L270 CegarLoopResult]: At program point L82(lines 21 83) the Hoare annotation is: (let ((.cse0 (let ((.cse1 (concat (_ bv2147483648 32) (_ bv0 32)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (and (= ~huge_ceil~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= .cse0 ULTIMATE.start_ceil_double_~x) (= ULTIMATE.start_main_~x~0 (fp.neg (_ +zero 11 53))) (= .cse0 |ULTIMATE.start_ceil_double_#res|) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_ceil_double_~i1~0 (_ bv0 32)) (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (and (= (bvadd ULTIMATE.start_ceil_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) v_skolemized_v_prenex_1_3) (_ bv20 32)))) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.neg (_ +zero 11 53))))) (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.neg (_ +zero 11 53))) (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start_ceil_double_~i0~0))))) [2020-11-28 03:16:04,562 INFO L274 CegarLoopResult]: For program point L33(lines 33 41) no Hoare annotation was computed. [2020-11-28 03:16:04,562 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:16:04,562 INFO L274 CegarLoopResult]: For program point L34(lines 34 40) no Hoare annotation was computed. [2020-11-28 03:16:04,562 INFO L274 CegarLoopResult]: For program point L76(lines 76 81) no Hoare annotation was computed. [2020-11-28 03:16:04,562 INFO L274 CegarLoopResult]: For program point L76-1(lines 21 83) no Hoare annotation was computed. [2020-11-28 03:16:04,563 INFO L274 CegarLoopResult]: For program point L76-2(lines 76 81) no Hoare annotation was computed. [2020-11-28 03:16:04,563 INFO L274 CegarLoopResult]: For program point L68(lines 68 69) no Hoare annotation was computed. [2020-11-28 03:16:04,563 INFO L274 CegarLoopResult]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2020-11-28 03:16:04,578 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:16:04,580 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:16:04,580 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:16:04,582 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:16:04,582 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:16:04,583 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:16:04,587 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (concat (_ BitVec 32) (_ BitVec 32) (_ BitVec 64)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java: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) [2020-11-28 03:16:04,593 INFO L168 Benchmark]: Toolchain (without parser) took 7156.93 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 33.0 MB in the beginning and 40.6 MB in the end (delta: -7.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:16:04,596 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 36.3 MB in the end (delta: 73.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:16:04,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.69 ms. Allocated memory is still 54.5 MB. Free memory was 32.8 MB in the beginning and 36.4 MB in the end (delta: -3.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:16:04,607 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.62 ms. Allocated memory is still 54.5 MB. Free memory was 36.4 MB in the beginning and 34.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:16:04,608 INFO L168 Benchmark]: Boogie Preprocessor took 63.86 ms. Allocated memory is still 54.5 MB. Free memory was 34.6 MB in the beginning and 33.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:16:04,609 INFO L168 Benchmark]: RCFGBuilder took 1669.62 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 33.0 MB in the beginning and 41.1 MB in the end (delta: -8.1 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:16:04,610 INFO L168 Benchmark]: TraceAbstraction took 5067.99 ms. Allocated memory is still 69.2 MB. Free memory was 40.5 MB in the beginning and 40.6 MB in the end (delta: -18.1 kB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:16:04,615 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 36.3 MB in the end (delta: 73.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 305.69 ms. Allocated memory is still 54.5 MB. Free memory was 32.8 MB in the beginning and 36.4 MB in the end (delta: -3.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.62 ms. Allocated memory is still 54.5 MB. Free memory was 36.4 MB in the beginning and 34.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.86 ms. Allocated memory is still 54.5 MB. Free memory was 34.6 MB in the beginning and 33.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1669.62 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 33.0 MB in the beginning and 41.1 MB in the end (delta: -8.1 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5067.99 ms. Allocated memory is still 69.2 MB. Free memory was 40.5 MB in the beginning and 40.6 MB in the end (delta: -18.1 kB). Peak memory consumption was 18.3 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 * 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: 85]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant [2020-11-28 03:16:04,630 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:16:04,630 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:16:04,630 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:16:04,631 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:16:04,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:16:04,632 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x - ExceptionOrErrorResult: UnsupportedOperationException: translation of (concat (_ BitVec 32) (_ BitVec 32) (_ BitVec 64)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (concat (_ BitVec 32) (_ BitVec 32) (_ BitVec 64)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...