./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0460.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_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0460.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/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 8f0f01afc4ff6f43b4bc9d2fa2add6f57b41dad4 ................................................................................................................................................................................................................................................................................................................. 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_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0460.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/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 8f0f01afc4ff6f43b4bc9d2fa2add6f57b41dad4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:53:16,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:53:16,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:53:16,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:53:16,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:53:16,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:53:16,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:53:16,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:53:16,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:53:16,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:53:16,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:53:16,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:53:16,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:53:16,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:53:16,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:53:16,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:53:16,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:53:16,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:53:16,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:53:16,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:53:16,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:53:16,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:53:16,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:53:16,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:53:16,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:53:16,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:53:16,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:53:16,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:53:16,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:53:16,676 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:53:16,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:53:16,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:53:16,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:53:16,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:53:16,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:53:16,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:53:16,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:53:16,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:53:16,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:53:16,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:53:16,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:53:16,691 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:53:16,719 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:53:16,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:53:16,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:53:16,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:53:16,723 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:53:16,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:53:16,723 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:53:16,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:53:16,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:53:16,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:53:16,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:53:16,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:53:16,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:53:16,726 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:53:16,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:53:16,726 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:53:16,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:53:16,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:53:16,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:53:16,728 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:53:16,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:53:16,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:53:16,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:53:16,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:53:16,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:53:16,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:53:16,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:53:16,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:53:16,731 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:53:16,731 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_7df40076-e15f-414e-873e-794ff0893811/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f0f01afc4ff6f43b4bc9d2fa2add6f57b41dad4 [2020-11-30 00:53:17,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:53:17,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:53:17,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:53:17,101 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:53:17,103 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:53:17,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2020-11-30 00:53:17,185 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/data/ae4b73330/16a66fc0b13b41e48f6ff3ab96762006/FLAGf889f059d [2020-11-30 00:53:17,952 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:53:17,953 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2020-11-30 00:53:17,963 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/data/ae4b73330/16a66fc0b13b41e48f6ff3ab96762006/FLAGf889f059d [2020-11-30 00:53:18,246 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/data/ae4b73330/16a66fc0b13b41e48f6ff3ab96762006 [2020-11-30 00:53:18,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:53:18,252 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:53:18,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:53:18,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:53:18,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:53:18,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:53:18" (1/1) ... [2020-11-30 00:53:18,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e32dcb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:18, skipping insertion in model container [2020-11-30 00:53:18,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:53:18" (1/1) ... [2020-11-30 00:53:18,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:53:18,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:53:18,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:53:18,687 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:53:18,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:53:18,780 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:53:18,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:18 WrapperNode [2020-11-30 00:53:18,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:53:18,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:53:18,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:53:18,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:53:18,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:18" (1/1) ... [2020-11-30 00:53:18,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:18" (1/1) ... [2020-11-30 00:53:18,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:53:18,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:53:18,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:53:18,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:53:18,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:18" (1/1) ... [2020-11-30 00:53:18,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:18" (1/1) ... [2020-11-30 00:53:18,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:18" (1/1) ... [2020-11-30 00:53:18,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:18" (1/1) ... [2020-11-30 00:53:18,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:18" (1/1) ... [2020-11-30 00:53:18,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:18" (1/1) ... [2020-11-30 00:53:18,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:18" (1/1) ... [2020-11-30 00:53:19,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:53:19,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:53:19,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:53:19,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:53:19,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/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 00:53:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:53:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:53:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 00:53:19,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:53:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 00:53:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:53:19,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:53:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:53:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:53:20,434 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:53:20,434 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-11-30 00:53:20,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:53:20 BoogieIcfgContainer [2020-11-30 00:53:20,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:53:20,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:53:20,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:53:20,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:53:20,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:53:18" (1/3) ... [2020-11-30 00:53:20,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b287cb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:53:20, skipping insertion in model container [2020-11-30 00:53:20,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:18" (2/3) ... [2020-11-30 00:53:20,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b287cb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:53:20, skipping insertion in model container [2020-11-30 00:53:20,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:53:20" (3/3) ... [2020-11-30 00:53:20,450 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0460.c [2020-11-30 00:53:20,463 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:53:20,469 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:53:20,488 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:53:20,534 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:53:20,534 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:53:20,535 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:53:20,535 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:53:20,535 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:53:20,535 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:53:20,535 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:53:20,535 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:53:20,558 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-11-30 00:53:20,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:53:20,565 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:53:20,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:53:20,567 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:53:20,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:53:20,574 INFO L82 PathProgramCache]: Analyzing trace with hash 8448415, now seen corresponding path program 1 times [2020-11-30 00:53:20,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:53:20,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390304687] [2020-11-30 00:53:20,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:53:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:53:20,757 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 00:53:20,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390304687] [2020-11-30 00:53:20,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:53:20,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:53:20,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080806063] [2020-11-30 00:53:20,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:53:20,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:53:20,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:53:20,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:53:20,787 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 2 states. [2020-11-30 00:53:20,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:53:20,827 INFO L93 Difference]: Finished difference Result 210 states and 347 transitions. [2020-11-30 00:53:20,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:53:20,829 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-11-30 00:53:20,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:53:20,872 INFO L225 Difference]: With dead ends: 210 [2020-11-30 00:53:20,872 INFO L226 Difference]: Without dead ends: 102 [2020-11-30 00:53:20,885 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 00:53:20,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-11-30 00:53:20,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2020-11-30 00:53:20,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-30 00:53:20,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 147 transitions. [2020-11-30 00:53:20,980 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 147 transitions. Word has length 12 [2020-11-30 00:53:20,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:53:20,981 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 147 transitions. [2020-11-30 00:53:20,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:53:20,981 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 147 transitions. [2020-11-30 00:53:20,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:53:20,982 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:53:20,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:53:20,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:53:20,983 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:53:20,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:53:20,984 INFO L82 PathProgramCache]: Analyzing trace with hash -409380025, now seen corresponding path program 1 times [2020-11-30 00:53:20,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:53:20,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498647793] [2020-11-30 00:53:20,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:53:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:53:21,077 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:53:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:53:21,131 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:53:21,167 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:53:21,180 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:53:21,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:53:21,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:53:21 BoogieIcfgContainer [2020-11-30 00:53:21,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:53:21,269 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:53:21,269 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:53:21,269 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:53:21,270 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:53:20" (3/4) ... [2020-11-30 00:53:21,274 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:53:21,275 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:53:21,278 INFO L168 Benchmark]: Toolchain (without parser) took 3024.28 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 57.5 MB in the beginning and 70.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:53:21,279 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 88.1 MB. Free memory was 46.5 MB in the beginning and 46.4 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:53:21,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.12 ms. Allocated memory is still 88.1 MB. Free memory was 57.3 MB in the beginning and 60.5 MB in the end (delta: -3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:53:21,281 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.96 ms. Allocated memory is still 88.1 MB. Free memory was 60.5 MB in the beginning and 57.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:53:21,282 INFO L168 Benchmark]: Boogie Preprocessor took 106.02 ms. Allocated memory is still 88.1 MB. Free memory was 57.1 MB in the beginning and 54.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:53:21,283 INFO L168 Benchmark]: RCFGBuilder took 1433.35 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 54.2 MB in the beginning and 59.1 MB in the end (delta: -4.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:53:21,284 INFO L168 Benchmark]: TraceAbstraction took 829.81 ms. Allocated memory is still 107.0 MB. Free memory was 58.5 MB in the beginning and 70.9 MB in the end (delta: -12.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:53:21,285 INFO L168 Benchmark]: Witness Printer took 6.11 ms. Allocated memory is still 107.0 MB. Free memory is still 70.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:53:21,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 88.1 MB. Free memory was 46.5 MB in the beginning and 46.4 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 531.12 ms. Allocated memory is still 88.1 MB. Free memory was 57.3 MB in the beginning and 60.5 MB in the end (delta: -3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.96 ms. Allocated memory is still 88.1 MB. Free memory was 60.5 MB in the beginning and 57.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 106.02 ms. Allocated memory is still 88.1 MB. Free memory was 57.1 MB in the beginning and 54.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1433.35 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 54.2 MB in the beginning and 59.1 MB in the end (delta: -4.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 829.81 ms. Allocated memory is still 107.0 MB. Free memory was 58.5 MB in the beginning and 70.9 MB in the end (delta: -12.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.11 ms. Allocated memory is still 107.0 MB. Free memory is still 70.9 MB. 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 someUnaryDOUBLEoperation at line 134, overapproximation of bitwiseAnd at line 152, overapproximation of someBinaryArithmeticDOUBLEoperation at line 170, overapproximation of someBinaryDOUBLEComparisonOperation at line 215. Possible FailurePath: [L17] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L129-L142] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L223] double x = __VERIFIER_nondet_double(); [L225] COND TRUE x < -1.0 || x > 1.0 [L145] double z, p, q, r, w, s, c, df; [L146] __int32_t hx, ix; VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L148] ieee_double_shape_type gh_u; [L149] gh_u.value = (x) [L150] EXPR gh_u.parts.msw [L150] (hx) = gh_u.parts.msw [L152] ix = hx & 0x7fffffff VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L153] COND FALSE !(ix >= 0x3ff00000) VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L168] COND TRUE ix < 0x3fe00000 VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L169] COND TRUE ix <= 0x3c600000 [L170] return pio2_hi_acos + pio2_lo_acos; VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L227] double res = __ieee754_acos(x); [L215] return x != x; VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L230] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_0460.c", 3, "reach_error") VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 152 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=107occurred 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, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 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 00:53:24,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:53:24,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:53:24,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-30 00:53:24,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:53:24,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:53:24,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:53:24,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:53:24,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:53:24,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:53:24,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:53:24,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:53:24,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:53:24,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:53:24,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:53:24,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:53:24,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:53:24,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:53:24,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:53:24,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:53:24,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:53:24,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:53:24,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:53:24,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:53:24,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:53:24,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:53:24,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:53:24,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:53:24,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:53:24,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:53:24,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:53:24,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:53:24,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:53:24,857 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 00:53:24,925 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:53:24,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:53:24,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:53:24,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:53:24,932 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:53:24,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:53:24,933 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:53:24,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:53:24,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:53:24,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:53:24,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:53:24,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:53:24,936 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:53:24,936 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:53:24,936 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:53:24,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:53:24,937 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:53:24,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:53:24,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:53:24,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:53:24,938 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:53:24,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:53:24,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:53:24,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:53:24,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:53:24,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:53:24,940 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:53:24,940 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:53:24,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:53:24,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:53:24,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:53:24,941 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_7df40076-e15f-414e-873e-794ff0893811/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f0f01afc4ff6f43b4bc9d2fa2add6f57b41dad4 [2020-11-30 00:53:25,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:53:25,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:53:25,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:53:25,494 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:53:25,495 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:53:25,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2020-11-30 00:53:25,576 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/data/f387d1443/9849ca4c4e834793999bfb412c7b588a/FLAG94d725d1a [2020-11-30 00:53:26,319 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:53:26,320 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2020-11-30 00:53:26,331 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/data/f387d1443/9849ca4c4e834793999bfb412c7b588a/FLAG94d725d1a [2020-11-30 00:53:26,608 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/bin/uautomizer/data/f387d1443/9849ca4c4e834793999bfb412c7b588a [2020-11-30 00:53:26,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:53:26,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:53:26,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:53:26,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:53:26,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:53:26,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:53:26" (1/1) ... [2020-11-30 00:53:26,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b4cf525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:26, skipping insertion in model container [2020-11-30 00:53:26,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:53:26" (1/1) ... [2020-11-30 00:53:26,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:53:26,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:53:27,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:53:27,049 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:53:27,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:53:27,185 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:53:27,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:27 WrapperNode [2020-11-30 00:53:27,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:53:27,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:53:27,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:53:27,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:53:27,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:27" (1/1) ... [2020-11-30 00:53:27,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:27" (1/1) ... [2020-11-30 00:53:27,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:53:27,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:53:27,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:53:27,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:53:27,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:27" (1/1) ... [2020-11-30 00:53:27,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:27" (1/1) ... [2020-11-30 00:53:27,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:27" (1/1) ... [2020-11-30 00:53:27,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:27" (1/1) ... [2020-11-30 00:53:27,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:27" (1/1) ... [2020-11-30 00:53:27,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:27" (1/1) ... [2020-11-30 00:53:27,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:27" (1/1) ... [2020-11-30 00:53:27,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:53:27,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:53:27,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:53:27,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:53:27,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/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 00:53:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-30 00:53:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-30 00:53:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 00:53:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:53:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 00:53:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:53:27,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:53:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 00:53:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:53:54,385 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:53:54,386 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-11-30 00:53:54,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:53:54 BoogieIcfgContainer [2020-11-30 00:53:54,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:53:54,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:53:54,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:53:54,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:53:54,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:53:26" (1/3) ... [2020-11-30 00:53:54,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a3c50e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:53:54, skipping insertion in model container [2020-11-30 00:53:54,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:53:27" (2/3) ... [2020-11-30 00:53:54,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a3c50e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:53:54, skipping insertion in model container [2020-11-30 00:53:54,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:53:54" (3/3) ... [2020-11-30 00:53:54,400 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0460.c [2020-11-30 00:53:54,414 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:53:54,421 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:53:54,437 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:53:54,469 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:53:54,470 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:53:54,470 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:53:54,470 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:53:54,470 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:53:54,471 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:53:54,471 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:53:54,471 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:53:54,498 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-11-30 00:53:54,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:53:54,506 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:53:54,507 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:53:54,508 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:53:54,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:53:54,516 INFO L82 PathProgramCache]: Analyzing trace with hash 8448415, now seen corresponding path program 1 times [2020-11-30 00:53:54,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:53:54,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255736180] [2020-11-30 00:53:54,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/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 00:53:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:53:55,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 00:53:55,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:53:55,795 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 00:53:55,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:53:55,801 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 00:53:55,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255736180] [2020-11-30 00:53:55,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:53:55,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 00:53:55,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025929053] [2020-11-30 00:53:55,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:53:55,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:53:55,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:53:55,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:53:55,838 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 2 states. [2020-11-30 00:53:55,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:53:55,874 INFO L93 Difference]: Finished difference Result 210 states and 347 transitions. [2020-11-30 00:53:55,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:53:55,875 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-11-30 00:53:55,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:53:55,887 INFO L225 Difference]: With dead ends: 210 [2020-11-30 00:53:55,887 INFO L226 Difference]: Without dead ends: 102 [2020-11-30 00:53:55,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 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 00:53:55,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-11-30 00:53:55,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2020-11-30 00:53:55,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-30 00:53:55,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 147 transitions. [2020-11-30 00:53:55,951 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 147 transitions. Word has length 12 [2020-11-30 00:53:55,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:53:55,951 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 147 transitions. [2020-11-30 00:53:55,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:53:55,952 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 147 transitions. [2020-11-30 00:53:55,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:53:55,953 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:53:55,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:53:56,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:53:56,166 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:53:56,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:53:56,168 INFO L82 PathProgramCache]: Analyzing trace with hash -409380025, now seen corresponding path program 1 times [2020-11-30 00:53:56,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:53:56,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46974097] [2020-11-30 00:53:56,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/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 00:53:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:53:56,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 00:53:56,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:53:56,613 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:53:58,888 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:54:03,083 WARN L193 SmtUtils]: Spent 4.09 s on a formula simplification that was a NOOP. DAG size: 31 [2020-11-30 00:54:03,115 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 00:54:03,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:54:07,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:54:07,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [46974097] [2020-11-30 00:54:07,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:54:07,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2020-11-30 00:54:07,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002136855] [2020-11-30 00:54:07,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 00:54:07,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:54:07,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 00:54:07,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=49, Unknown=3, NotChecked=0, Total=72 [2020-11-30 00:54:07,468 INFO L87 Difference]: Start difference. First operand 102 states and 147 transitions. Second operand 9 states. [2020-11-30 00:54:20,230 WARN L193 SmtUtils]: Spent 4.20 s on a formula simplification that was a NOOP. DAG size: 46 [2020-11-30 00:54:24,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:54:24,386 INFO L93 Difference]: Finished difference Result 112 states and 155 transitions. [2020-11-30 00:54:24,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:54:24,415 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2020-11-30 00:54:24,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:54:24,416 INFO L225 Difference]: With dead ends: 112 [2020-11-30 00:54:24,416 INFO L226 Difference]: Without dead ends: 21 [2020-11-30 00:54:24,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 21.4s TimeCoverageRelationStatistics Valid=44, Invalid=82, Unknown=6, NotChecked=0, Total=132 [2020-11-30 00:54:24,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-30 00:54:24,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2020-11-30 00:54:24,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-30 00:54:24,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-11-30 00:54:24,423 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 13 [2020-11-30 00:54:24,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:54:24,423 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-11-30 00:54:24,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 00:54:24,423 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-30 00:54:24,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:54:24,424 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:54:24,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:54:24,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 00:54:24,638 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:54:24,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:54:24,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1384827201, now seen corresponding path program 1 times [2020-11-30 00:54:24,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:54:24,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339589702] [2020-11-30 00:54:24,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/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 00:54:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:54:25,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 00:54:25,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:54:37,791 WARN L193 SmtUtils]: Spent 3.55 s on a formula simplification that was a NOOP. DAG size: 7 [2020-11-30 00:54:50,780 WARN L838 $PredicateComparison]: unable to prove that (or (and (exists ((ULTIMATE.start___ieee754_acos_~x (_ FloatingPoint 11 53))) (let ((.cse0 (let ((.cse1 (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_acos_~x ULTIMATE.start___ieee754_acos_~x))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0))) (= (_ bv0 32) |c_ULTIMATE.start_isnan_double_#res|)) (and (exists ((v_prenex_9 (_ FloatingPoint 11 53))) (not (let ((.cse2 (let ((.cse3 (fp.sub roundNearestTiesToEven v_prenex_9 v_prenex_9))) (fp.div roundNearestTiesToEven .cse3 .cse3)))) (fp.eq .cse2 .cse2)))) (= (_ bv1 32) |c_ULTIMATE.start_isnan_double_#res|))) is different from false [2020-11-30 00:55:02,767 WARN L838 $PredicateComparison]: unable to prove that (or (= (_ bv1 32) |c_ULTIMATE.start_main_#t~ret24|) (and (= (_ bv0 32) |c_ULTIMATE.start_main_#t~ret24|) (exists ((ULTIMATE.start___ieee754_acos_~x (_ FloatingPoint 11 53))) (let ((.cse0 (let ((.cse1 (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_acos_~x ULTIMATE.start___ieee754_acos_~x))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0))))) is different from false [2020-11-30 00:55:09,618 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 00:55:09,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:55:24,143 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start___ieee754_acos_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.sub c_currentRoundingMode ULTIMATE.start___ieee754_acos_~x ULTIMATE.start___ieee754_acos_~x))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2020-11-30 00:55:24,152 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 00:55:24,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339589702] [2020-11-30 00:55:24,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:55:24,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-11-30 00:55:24,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516359569] [2020-11-30 00:55:24,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 00:55:24,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:55:24,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 00:55:24,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=29, Unknown=7, NotChecked=36, Total=90 [2020-11-30 00:55:24,156 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 10 states. [2020-11-30 00:55:26,554 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((ULTIMATE.start___ieee754_acos_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.sub c_currentRoundingMode ULTIMATE.start___ieee754_acos_~x ULTIMATE.start___ieee754_acos_~x))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0))))) is different from false [2020-11-30 00:55:34,695 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) |c_ULTIMATE.start_isnan_double_#res|))) (and (not .cse0) (or (and (exists ((ULTIMATE.start___ieee754_acos_~x (_ FloatingPoint 11 53))) (let ((.cse1 (let ((.cse2 (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_acos_~x ULTIMATE.start___ieee754_acos_~x))) (fp.div roundNearestTiesToEven .cse2 .cse2)))) (fp.eq .cse1 .cse1))) .cse0) (and (exists ((v_prenex_9 (_ FloatingPoint 11 53))) (not (let ((.cse3 (let ((.cse4 (fp.sub roundNearestTiesToEven v_prenex_9 v_prenex_9))) (fp.div roundNearestTiesToEven .cse4 .cse4)))) (fp.eq .cse3 .cse3)))) (= (_ bv1 32) |c_ULTIMATE.start_isnan_double_#res|))) (exists ((ULTIMATE.start___ieee754_acos_~x (_ FloatingPoint 11 53))) (= |c_ULTIMATE.start___ieee754_acos_#res| (let ((.cse5 (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_acos_~x ULTIMATE.start___ieee754_acos_~x))) (fp.div roundNearestTiesToEven .cse5 .cse5)))))) is different from false [2020-11-30 00:55:35,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:55:35,915 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-11-30 00:55:35,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:55:35,917 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-11-30 00:55:35,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:55:35,918 INFO L225 Difference]: With dead ends: 21 [2020-11-30 00:55:35,918 INFO L226 Difference]: Without dead ends: 16 [2020-11-30 00:55:35,918 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.5s TimeCoverageRelationStatistics Valid=25, Invalid=42, Unknown=9, NotChecked=80, Total=156 [2020-11-30 00:55:35,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-30 00:55:35,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-30 00:55:35,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-30 00:55:35,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-11-30 00:55:35,923 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2020-11-30 00:55:35,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:55:35,923 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-11-30 00:55:35,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 00:55:35,923 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-11-30 00:55:35,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 00:55:35,924 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:55:35,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:55:36,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 00:55:36,135 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:55:36,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:36,135 INFO L82 PathProgramCache]: Analyzing trace with hash -588057197, now seen corresponding path program 1 times [2020-11-30 00:55:36,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:55:36,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034219874] [2020-11-30 00:55:36,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7df40076-e15f-414e-873e-794ff0893811/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 [2020-11-30 00:55:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:36,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 00:55:36,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:55:36,651 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:55:36,807 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:55:36,869 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 15 treesize of output 13 [2020-11-30 00:55:36,887 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 00:55:36,892 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:55:36,892 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:55:36,910 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 15 treesize of output 13 [2020-11-30 00:55:36,925 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-11-30 00:55:36,930 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:55:36,930 INFO L545 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:55:36,989 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:55:36,993 INFO L545 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2020-11-30 00:55:36,994 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:98, output treesize:76 [2020-11-30 00:55:41,085 WARN L193 SmtUtils]: Spent 4.02 s on a formula simplification that was a NOOP. DAG size: 48 [2020-11-30 00:55:41,129 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 00:55:41,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:55:41,317 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 20 treesize of output 18 [2020-11-30 00:55:41,327 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 00:55:41,332 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:55:41,333 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:55:41,348 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:55:41,349 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-30 00:55:41,349 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:31, output treesize:20 [2020-11-30 00:55:41,558 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 00:55:41,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034219874] [2020-11-30 00:55:41,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:55:41,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-30 00:55:41,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099100688] [2020-11-30 00:55:41,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 00:55:41,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:55:41,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 00:55:41,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-30 00:55:41,561 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 10 states. [2020-11-30 00:55:45,993 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-11-30 00:56:02,736 WARN L193 SmtUtils]: Spent 14.66 s on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2020-11-30 00:56:02,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:02,738 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2020-11-30 00:56:02,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:56:02,738 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-11-30 00:56:02,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:02,739 INFO L225 Difference]: With dead ends: 16 [2020-11-30 00:56:02,739 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:56:02,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 21.7s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-11-30 00:56:02,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:56:02,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:56:02,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:56:02,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:56:02,740 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-30 00:56:02,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:02,741 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:56:02,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 00:56:02,741 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:56:02,741 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:56:02,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 00:56:02,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:56:45,160 WARN L193 SmtUtils]: Spent 42.11 s on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2020-11-30 00:56:48,512 WARN L193 SmtUtils]: Spent 3.35 s on a formula simplification that was a NOOP. DAG size: 7 [2020-11-30 00:56:49,501 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-11-30 00:56:49,502 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:226) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:164) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:134) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:221) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.(HoareAnnotationComposer.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeCFGHoareAnnotation(BasicCegarLoop.java:1052) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 34 more [2020-11-30 00:56:49,506 INFO L168 Benchmark]: Toolchain (without parser) took 202890.54 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.0 MB in the beginning and 41.9 MB in the end (delta: -7.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:49,506 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 56.6 MB. Free memory is still 37.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:56:49,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 566.70 ms. Allocated memory is still 56.6 MB. Free memory was 34.8 MB in the beginning and 32.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:49,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 121.28 ms. Allocated memory is still 56.6 MB. Free memory was 32.9 MB in the beginning and 29.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:49,508 INFO L168 Benchmark]: Boogie Preprocessor took 142.78 ms. Allocated memory is still 56.6 MB. Free memory was 29.9 MB in the beginning and 26.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:49,510 INFO L168 Benchmark]: RCFGBuilder took 26932.24 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 26.8 MB in the beginning and 34.9 MB in the end (delta: -8.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:49,510 INFO L168 Benchmark]: TraceAbstraction took 175114.20 ms. Allocated memory is still 69.2 MB. Free memory was 34.6 MB in the beginning and 41.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:49,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 56.6 MB. Free memory is still 37.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 566.70 ms. Allocated memory is still 56.6 MB. Free memory was 34.8 MB in the beginning and 32.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 121.28 ms. Allocated memory is still 56.6 MB. Free memory was 32.9 MB in the beginning and 29.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 142.78 ms. Allocated memory is still 56.6 MB. Free memory was 29.9 MB in the beginning and 26.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 26932.24 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 26.8 MB in the beginning and 34.9 MB in the end (delta: -8.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 175114.20 ms. Allocated memory is still 69.2 MB. Free memory was 34.6 MB in the beginning and 41.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...