./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.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_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/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 5ae8278c4ec20358798928b86253d2d04fbb03a1 .............................................................................................................................................................................................................................................................................................................. 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_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/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 5ae8278c4ec20358798928b86253d2d04fbb03a1 ................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:43:06,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:43:06,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:43:06,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:43:06,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:43:06,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:43:06,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:43:06,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:43:06,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:43:06,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:43:06,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:43:06,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:43:06,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:43:06,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:43:06,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:43:06,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:43:06,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:43:06,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:43:06,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:43:06,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:43:06,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:43:06,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:43:06,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:43:06,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:43:06,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:43:06,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:43:06,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:43:06,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:43:06,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:43:06,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:43:06,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:43:06,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:43:06,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:43:06,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:43:06,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:43:06,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:43:06,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:43:06,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:43:06,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:43:06,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:43:06,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:43:06,841 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:43:06,871 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:43:06,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:43:06,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:43:06,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:43:06,874 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:43:06,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:43:06,874 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:43:06,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:43:06,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:43:06,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:43:06,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:43:06,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:43:06,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:43:06,877 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:43:06,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:43:06,877 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:43:06,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:43:06,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:43:06,878 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:43:06,878 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:43:06,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:43:06,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:43:06,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:43:06,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:43:06,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:43:06,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:43:06,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:43:06,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:43:06,881 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:43:06,881 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_80056268-e2e4-4930-a7a6-56b9686f3695/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ae8278c4ec20358798928b86253d2d04fbb03a1 [2020-11-30 00:43:07,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:43:07,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:43:07,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:43:07,216 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:43:07,219 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:43:07,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2020-11-30 00:43:07,335 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/data/c24d7d212/96f540e2fd4347f79fd693ec58ff8baf/FLAG8f23bd85e [2020-11-30 00:43:07,937 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:43:07,937 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2020-11-30 00:43:07,947 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/data/c24d7d212/96f540e2fd4347f79fd693ec58ff8baf/FLAG8f23bd85e [2020-11-30 00:43:08,278 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/data/c24d7d212/96f540e2fd4347f79fd693ec58ff8baf [2020-11-30 00:43:08,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:43:08,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:43:08,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:43:08,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:43:08,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:43:08,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:43:08" (1/1) ... [2020-11-30 00:43:08,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e585808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:08, skipping insertion in model container [2020-11-30 00:43:08,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:43:08" (1/1) ... [2020-11-30 00:43:08,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:43:08,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:43:08,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:43:08,647 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:43:08,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:43:08,789 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:43:08,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:08 WrapperNode [2020-11-30 00:43:08,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:43:08,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:43:08,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:43:08,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:43:08,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:08" (1/1) ... [2020-11-30 00:43:08,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:08" (1/1) ... [2020-11-30 00:43:08,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:43:08,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:43:08,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:43:08,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:43:08,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:08" (1/1) ... [2020-11-30 00:43:08,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:08" (1/1) ... [2020-11-30 00:43:08,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:08" (1/1) ... [2020-11-30 00:43:08,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:08" (1/1) ... [2020-11-30 00:43:08,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:08" (1/1) ... [2020-11-30 00:43:08,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:08" (1/1) ... [2020-11-30 00:43:08,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:08" (1/1) ... [2020-11-30 00:43:08,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:43:08,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:43:08,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:43:08,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:43:08,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/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 [2020-11-30 00:43:09,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:43:09,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:43:09,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:43:09,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 00:43:09,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 00:43:09,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:43:09,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:43:09,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:43:09,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-30 00:43:09,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:43:10,044 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:43:10,044 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-30 00:43:10,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:43:10 BoogieIcfgContainer [2020-11-30 00:43:10,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:43:10,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:43:10,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:43:10,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:43:10,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:43:08" (1/3) ... [2020-11-30 00:43:10,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39302982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:43:10, skipping insertion in model container [2020-11-30 00:43:10,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:08" (2/3) ... [2020-11-30 00:43:10,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39302982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:43:10, skipping insertion in model container [2020-11-30 00:43:10,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:43:10" (3/3) ... [2020-11-30 00:43:10,061 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2020-11-30 00:43:10,073 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:43:10,081 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:43:10,093 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:43:10,122 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:43:10,123 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:43:10,123 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:43:10,123 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:43:10,123 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:43:10,123 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:43:10,123 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:43:10,124 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:43:10,140 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-11-30 00:43:10,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:43:10,145 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:43:10,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:43:10,146 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:43:10,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:43:10,153 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-11-30 00:43:10,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:43:10,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205217548] [2020-11-30 00:43:10,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:43:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:43:10,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:43:10,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205217548] [2020-11-30 00:43:10,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:43:10,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:43:10,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652523222] [2020-11-30 00:43:10,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:43:10,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:43:10,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:43:10,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:43:10,354 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2020-11-30 00:43:10,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:43:10,383 INFO L93 Difference]: Finished difference Result 109 states and 191 transitions. [2020-11-30 00:43:10,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:43:10,385 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-30 00:43:10,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:43:10,397 INFO L225 Difference]: With dead ends: 109 [2020-11-30 00:43:10,397 INFO L226 Difference]: Without dead ends: 52 [2020-11-30 00:43:10,401 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 [2020-11-30 00:43:10,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-30 00:43:10,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-11-30 00:43:10,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-30 00:43:10,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-11-30 00:43:10,447 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-11-30 00:43:10,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:43:10,448 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-11-30 00:43:10,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:43:10,448 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-11-30 00:43:10,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:43:10,449 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:43:10,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:43:10,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:43:10,450 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:43:10,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:43:10,451 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-11-30 00:43:10,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:43:10,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115709242] [2020-11-30 00:43:10,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:43:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:43:10,555 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:43:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:43:10,654 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:43:10,711 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:43:10,712 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:43:10,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:43:10,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:43:10 BoogieIcfgContainer [2020-11-30 00:43:10,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:43:10,755 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:43:10,755 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:43:10,759 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:43:10,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:43:10" (3/4) ... [2020-11-30 00:43:10,763 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:43:10,763 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:43:10,765 INFO L168 Benchmark]: Toolchain (without parser) took 2480.90 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 69.2 MB in the beginning and 64.5 MB in the end (delta: 4.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:43:10,766 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 98.6 MB. Free memory is still 57.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:43:10,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 501.06 ms. Allocated memory is still 98.6 MB. Free memory was 68.9 MB in the beginning and 72.8 MB in the end (delta: -4.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:43:10,768 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.63 ms. Allocated memory is still 98.6 MB. Free memory was 72.8 MB in the beginning and 70.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:43:10,769 INFO L168 Benchmark]: Boogie Preprocessor took 100.00 ms. Allocated memory is still 98.6 MB. Free memory was 70.3 MB in the beginning and 68.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:43:10,770 INFO L168 Benchmark]: RCFGBuilder took 1070.46 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 68.1 MB in the beginning and 91.7 MB in the end (delta: -23.6 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:43:10,770 INFO L168 Benchmark]: TraceAbstraction took 702.58 ms. Allocated memory is still 119.5 MB. Free memory was 91.7 MB in the beginning and 65.1 MB in the end (delta: 26.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:43:10,771 INFO L168 Benchmark]: Witness Printer took 8.63 ms. Allocated memory is still 119.5 MB. Free memory was 65.1 MB in the beginning and 64.5 MB in the end (delta: 593.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:43:10,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 98.6 MB. Free memory is still 57.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 501.06 ms. Allocated memory is still 98.6 MB. Free memory was 68.9 MB in the beginning and 72.8 MB in the end (delta: -4.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.63 ms. Allocated memory is still 98.6 MB. Free memory was 72.8 MB in the beginning and 70.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 100.00 ms. Allocated memory is still 98.6 MB. Free memory was 70.3 MB in the beginning and 68.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1070.46 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 68.1 MB in the beginning and 91.7 MB in the end (delta: -23.6 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 702.58 ms. Allocated memory is still 119.5 MB. Free memory was 91.7 MB in the beginning and 65.1 MB in the end (delta: 26.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Witness Printer took 8.63 ms. Allocated memory is still 119.5 MB. Free memory was 65.1 MB in the beginning and 64.5 MB in the end (delta: 593.9 kB). There was no memory consumed. 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 bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 172, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={9:0}] [L171] double x = __VERIFIER_nondet_double(); [L172] double y = -0.0; [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={9:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L173] double res = fmod_double(x, y); [L18] return x != x; VAL [one_fmod=1, Zero_fmod={9:0}] [L176] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1121b.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 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: 81 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=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 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 [2020-11-30 00:43:13,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:43:13,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:43:13,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:43:13,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:43:13,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:43:13,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:43:13,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:43:13,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:43:13,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:43:13,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:43:13,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:43:13,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:43:13,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:43:13,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:43:13,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:43:13,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:43:13,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:43:13,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:43:13,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:43:13,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:43:13,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:43:13,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:43:13,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:43:13,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:43:13,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:43:13,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:43:13,907 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:43:13,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:43:13,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:43:13,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:43:13,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:43:13,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:43:13,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:43:13,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:43:13,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:43:13,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:43:13,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:43:13,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:43:13,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:43:13,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:43:13,923 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 00:43:13,988 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:43:13,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:43:13,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:43:13,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:43:13,993 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:43:13,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:43:13,994 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:43:13,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:43:13,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:43:13,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:43:13,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:43:13,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:43:13,997 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:43:13,997 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:43:13,997 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:43:13,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:43:13,998 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:43:13,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:43:13,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:43:13,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:43:13,999 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:43:13,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:43:13,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:43:14,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:43:14,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:43:14,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:43:14,001 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:43:14,001 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:43:14,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:43:14,001 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:43:14,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:43:14,002 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_80056268-e2e4-4930-a7a6-56b9686f3695/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ae8278c4ec20358798928b86253d2d04fbb03a1 [2020-11-30 00:43:14,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:43:14,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:43:14,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:43:14,517 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:43:14,521 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:43:14,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2020-11-30 00:43:14,605 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/data/77fb2ec4b/f420afcddf0b48fbbf0575116dae3b41/FLAG74af1753c [2020-11-30 00:43:15,388 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:43:15,388 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2020-11-30 00:43:15,397 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/data/77fb2ec4b/f420afcddf0b48fbbf0575116dae3b41/FLAG74af1753c [2020-11-30 00:43:15,703 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/data/77fb2ec4b/f420afcddf0b48fbbf0575116dae3b41 [2020-11-30 00:43:15,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:43:15,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:43:15,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:43:15,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:43:15,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:43:15,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:43:15" (1/1) ... [2020-11-30 00:43:15,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@590add84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:15, skipping insertion in model container [2020-11-30 00:43:15,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:43:15" (1/1) ... [2020-11-30 00:43:15,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:43:15,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:43:16,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:43:16,032 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:43:16,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:43:16,198 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:43:16,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:16 WrapperNode [2020-11-30 00:43:16,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:43:16,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:43:16,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:43:16,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:43:16,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:16" (1/1) ... [2020-11-30 00:43:16,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:16" (1/1) ... [2020-11-30 00:43:16,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:43:16,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:43:16,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:43:16,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:43:16,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:16" (1/1) ... [2020-11-30 00:43:16,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:16" (1/1) ... [2020-11-30 00:43:16,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:16" (1/1) ... [2020-11-30 00:43:16,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:16" (1/1) ... [2020-11-30 00:43:16,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:16" (1/1) ... [2020-11-30 00:43:16,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:16" (1/1) ... [2020-11-30 00:43:16,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:16" (1/1) ... [2020-11-30 00:43:16,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:43:16,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:43:16,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:43:16,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:43:16,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/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 [2020-11-30 00:43:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-30 00:43:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-30 00:43:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 00:43:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:43:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-11-30 00:43:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 00:43:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:43:16,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:43:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 00:43:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:43:20,897 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:43:20,897 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-30 00:43:20,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:43:20 BoogieIcfgContainer [2020-11-30 00:43:20,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:43:20,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:43:20,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:43:20,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:43:20,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:43:15" (1/3) ... [2020-11-30 00:43:20,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b1f45c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:43:20, skipping insertion in model container [2020-11-30 00:43:20,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:43:16" (2/3) ... [2020-11-30 00:43:20,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b1f45c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:43:20, skipping insertion in model container [2020-11-30 00:43:20,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:43:20" (3/3) ... [2020-11-30 00:43:20,916 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2020-11-30 00:43:20,930 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:43:20,937 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:43:20,953 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:43:20,982 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:43:20,982 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:43:20,983 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:43:20,983 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:43:20,983 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:43:20,983 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:43:20,984 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:43:20,984 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:43:21,000 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-11-30 00:43:21,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:43:21,006 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:43:21,007 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:43:21,008 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:43:21,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:43:21,014 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-11-30 00:43:21,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:43:21,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [544357239] [2020-11-30 00:43:21,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/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 [2020-11-30 00:43:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:43:22,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 00:43:22,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:43:22,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:43:22,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:43:22,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:43:22,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [544357239] [2020-11-30 00:43:22,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:43:22,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 00:43:22,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378489401] [2020-11-30 00:43:22,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:43:22,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:43:22,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:43:22,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:43:22,723 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2020-11-30 00:43:22,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:43:22,751 INFO L93 Difference]: Finished difference Result 109 states and 191 transitions. [2020-11-30 00:43:22,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:43:22,753 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-30 00:43:22,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:43:22,765 INFO L225 Difference]: With dead ends: 109 [2020-11-30 00:43:22,765 INFO L226 Difference]: Without dead ends: 52 [2020-11-30 00:43:22,768 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 [2020-11-30 00:43:22,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-30 00:43:22,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-11-30 00:43:22,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-30 00:43:22,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-11-30 00:43:22,812 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-11-30 00:43:22,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:43:22,813 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-11-30 00:43:22,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:43:22,814 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-11-30 00:43:22,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:43:22,815 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:43:22,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:43:23,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:43:23,034 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:43:23,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:43:23,035 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-11-30 00:43:23,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:43:23,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997924415] [2020-11-30 00:43:23,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/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 [2020-11-30 00:43:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:43:24,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 00:43:24,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:43:36,759 WARN L193 SmtUtils]: Spent 3.64 s on a formula simplification that was a NOOP. DAG size: 9 [2020-11-30 00:43:47,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:43:47,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:44:04,224 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2020-11-30 00:44:06,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:44:06,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997924415] [2020-11-30 00:44:06,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:44:06,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-11-30 00:44:06,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385449779] [2020-11-30 00:44:06,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-30 00:44:06,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:44:06,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-30 00:44:06,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=64, Unknown=7, NotChecked=16, Total=110 [2020-11-30 00:44:06,599 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 11 states. [2020-11-30 00:44:12,714 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven) (= c_ULTIMATE.start_fmod_double_~y (fp.neg (_ +zero 11 53)))) is different from true [2020-11-30 00:44:18,261 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= |c_ULTIMATE.start_fmod_double_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) (= (_ bv1 32) |c_ULTIMATE.start_isnan_double_#res|)) is different from false [2020-11-30 00:44:28,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:44:28,313 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2020-11-30 00:44:28,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:44:28,360 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-11-30 00:44:28,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:44:28,362 INFO L225 Difference]: With dead ends: 57 [2020-11-30 00:44:28,362 INFO L226 Difference]: Without dead ends: 52 [2020-11-30 00:44:28,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 45.7s TimeCoverageRelationStatistics Valid=27, Invalid=66, Unknown=9, NotChecked=54, Total=156 [2020-11-30 00:44:28,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-11-30 00:44:28,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-11-30 00:44:28,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-30 00:44:28,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2020-11-30 00:44:28,373 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2020-11-30 00:44:28,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:44:28,374 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-11-30 00:44:28,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-30 00:44:28,374 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2020-11-30 00:44:28,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:44:28,375 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:44:28,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:44:28,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 00:44:28,584 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:44:28,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:44:28,585 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2020-11-30 00:44:28,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:44:28,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479991713] [2020-11-30 00:44:28,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/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 [2020-11-30 00:44:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:28,883 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:44:29,147 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:44:29,218 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-30 00:44:29,219 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:44:29,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 00:44:29,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:44:29 BoogieIcfgContainer [2020-11-30 00:44:29,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:44:29,476 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:44:29,476 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:44:29,476 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:44:29,477 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:43:20" (3/4) ... [2020-11-30 00:44:29,479 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:44:29,556 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_80056268-e2e4-4930-a7a6-56b9686f3695/bin/uautomizer/witness.graphml [2020-11-30 00:44:29,556 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:44:29,558 INFO L168 Benchmark]: Toolchain (without parser) took 73850.04 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 40.1 MB in the beginning and 68.9 MB in the end (delta: -28.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:29,559 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 58.7 MB. Free memory is still 41.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:44:29,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 480.77 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 39.9 MB in the beginning and 71.4 MB in the end (delta: -31.5 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:29,560 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.09 ms. Allocated memory is still 88.1 MB. Free memory was 71.4 MB in the beginning and 69.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:29,561 INFO L168 Benchmark]: Boogie Preprocessor took 55.37 ms. Allocated memory is still 88.1 MB. Free memory was 69.0 MB in the beginning and 66.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:29,562 INFO L168 Benchmark]: RCFGBuilder took 4547.21 ms. Allocated memory is still 88.1 MB. Free memory was 66.6 MB in the beginning and 58.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:29,562 INFO L168 Benchmark]: TraceAbstraction took 68573.54 ms. Allocated memory is still 88.1 MB. Free memory was 57.9 MB in the beginning and 39.6 MB in the end (delta: 18.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:29,563 INFO L168 Benchmark]: Witness Printer took 80.98 ms. Allocated memory is still 88.1 MB. Free memory was 39.6 MB in the beginning and 68.9 MB in the end (delta: -29.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:44:29,567 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 58.7 MB. Free memory is still 41.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 480.77 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 39.9 MB in the beginning and 71.4 MB in the end (delta: -31.5 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.09 ms. Allocated memory is still 88.1 MB. Free memory was 71.4 MB in the beginning and 69.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.37 ms. Allocated memory is still 88.1 MB. Free memory was 69.0 MB in the beginning and 66.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 4547.21 ms. Allocated memory is still 88.1 MB. Free memory was 66.6 MB in the beginning and 58.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 68573.54 ms. Allocated memory is still 88.1 MB. Free memory was 57.9 MB in the beginning and 39.6 MB in the end (delta: 18.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. * Witness Printer took 80.98 ms. Allocated memory is still 88.1 MB. Free memory was 39.6 MB in the beginning and 68.9 MB in the end (delta: -29.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L171] double x = __VERIFIER_nondet_double(); [L172] double y = -0.0; [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1.0, Zero_fmod={2:0}] [L45-L46] COND FALSE !((hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000)) VAL [one_fmod=1.0, Zero_fmod={2:0}] [L48] COND TRUE hx <= hy VAL [one_fmod=1.0, Zero_fmod={2:0}] [L49] COND TRUE (hx < hy) || (lx < ly) [L50] return x; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L173] double res = fmod_double(x, y); [L18] return x != x; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L176] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1121b.c", 3, "reach_error") VAL [one_fmod=1.0, Zero_fmod={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 68.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 21.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 156 SDtfs, 2 SDslu, 400 SDs, 0 SdLazy, 25 SolverSat, 0 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 14.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 45.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 42.2s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 7 QuantifiedInterpolants, 2637 SizeOfPredicates, 11 NumberOfNonLiveVariables, 132 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...