./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4284cb37841cd94fe17da64cc250a8a1e69c6375 .............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4284cb37841cd94fe17da64cc250a8a1e69c6375 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:35:42,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:35:42,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:35:42,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:35:42,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:35:42,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:35:42,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:35:42,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:35:42,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:35:42,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:35:42,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:35:42,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:35:42,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:35:42,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:35:42,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:35:42,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:35:42,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:35:42,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:35:42,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:35:42,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:35:42,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:35:42,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:35:42,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:35:42,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:35:42,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:35:42,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:35:42,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:35:42,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:35:42,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:35:42,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:35:42,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:35:42,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:35:42,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:35:42,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:35:42,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:35:42,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:35:42,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:35:42,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:35:42,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:35:42,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:35:42,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:35:42,871 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:35:42,881 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:35:42,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:35:42,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:35:42,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:35:42,882 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:35:42,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:35:42,882 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:35:42,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:35:42,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:35:42,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:35:42,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:35:42,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:35:42,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:35:42,883 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:35:42,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:35:42,884 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:35:42,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:35:42,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:35:42,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:35:42,884 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:35:42,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:35:42,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:35:42,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:35:42,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:35:42,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:35:42,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:35:42,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:35:42,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:35:42,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:35:42,885 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c374a630-7b8e-4540-9624-86e6f7a28508/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(__VERIFIER_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 -> 4284cb37841cd94fe17da64cc250a8a1e69c6375 [2019-12-07 18:35:42,985 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:35:42,993 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:35:42,995 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:35:42,996 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:35:42,996 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:35:42,996 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2019-12-07 18:35:43,034 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/data/9be469e29/9cb30a3ebccf4d5ebfaa04288a36f2fb/FLAG7527b9837 [2019-12-07 18:35:43,520 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:35:43,521 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2019-12-07 18:35:43,526 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/data/9be469e29/9cb30a3ebccf4d5ebfaa04288a36f2fb/FLAG7527b9837 [2019-12-07 18:35:43,535 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/data/9be469e29/9cb30a3ebccf4d5ebfaa04288a36f2fb [2019-12-07 18:35:43,537 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:35:43,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:35:43,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:35:43,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:35:43,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:35:43,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:35:43" (1/1) ... [2019-12-07 18:35:43,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@355481d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:43, skipping insertion in model container [2019-12-07 18:35:43,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:35:43" (1/1) ... [2019-12-07 18:35:43,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:35:43,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:35:43,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:35:43,710 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:35:43,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:35:43,743 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:35:43,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:43 WrapperNode [2019-12-07 18:35:43,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:35:43,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:35:43,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:35:43,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:35:43,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:43" (1/1) ... [2019-12-07 18:35:43,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:43" (1/1) ... [2019-12-07 18:35:43,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:35:43,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:35:43,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:35:43,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:35:43,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:43" (1/1) ... [2019-12-07 18:35:43,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:43" (1/1) ... [2019-12-07 18:35:43,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:43" (1/1) ... [2019-12-07 18:35:43,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:43" (1/1) ... [2019-12-07 18:35:43,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:43" (1/1) ... [2019-12-07 18:35:43,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:43" (1/1) ... [2019-12-07 18:35:43,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:43" (1/1) ... [2019-12-07 18:35:43,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:35:43,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:35:43,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:35:43,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:35:43,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/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 [2019-12-07 18:35:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:35:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 18:35:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:35:43,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:35:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:35:43,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:35:44,037 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:35:44,037 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-12-07 18:35:44,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:35:44 BoogieIcfgContainer [2019-12-07 18:35:44,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:35:44,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:35:44,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:35:44,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:35:44,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:35:43" (1/3) ... [2019-12-07 18:35:44,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596f94cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:35:44, skipping insertion in model container [2019-12-07 18:35:44,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:43" (2/3) ... [2019-12-07 18:35:44,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596f94cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:35:44, skipping insertion in model container [2019-12-07 18:35:44,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:35:44" (3/3) ... [2019-12-07 18:35:44,043 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232a.c [2019-12-07 18:35:44,049 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:35:44,054 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:35:44,061 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:35:44,075 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:35:44,076 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:35:44,076 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:35:44,076 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:35:44,076 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:35:44,076 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:35:44,076 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:35:44,076 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:35:44,085 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-12-07 18:35:44,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:35:44,089 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:44,090 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:44,090 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:44,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:44,094 INFO L82 PathProgramCache]: Analyzing trace with hash -958075201, now seen corresponding path program 1 times [2019-12-07 18:35:44,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:44,099 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024472485] [2019-12-07 18:35:44,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:44,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:44,173 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024472485] [2019-12-07 18:35:44,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:44,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:35:44,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947851314] [2019-12-07 18:35:44,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:35:44,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:44,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:35:44,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:35:44,187 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2019-12-07 18:35:44,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:44,200 INFO L93 Difference]: Finished difference Result 62 states and 98 transitions. [2019-12-07 18:35:44,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:35:44,201 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 18:35:44,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:44,207 INFO L225 Difference]: With dead ends: 62 [2019-12-07 18:35:44,207 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 18:35:44,209 INFO L630 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 [2019-12-07 18:35:44,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 18:35:44,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-07 18:35:44,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 18:35:44,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2019-12-07 18:35:44,232 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 10 [2019-12-07 18:35:44,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:44,232 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2019-12-07 18:35:44,232 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:35:44,232 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2019-12-07 18:35:44,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:35:44,233 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:44,233 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:44,233 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:44,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:44,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1001584898, now seen corresponding path program 1 times [2019-12-07 18:35:44,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:44,234 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408625215] [2019-12-07 18:35:44,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:44,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:44,280 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408625215] [2019-12-07 18:35:44,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:44,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:35:44,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142729687] [2019-12-07 18:35:44,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:35:44,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:44,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:35:44,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:35:44,282 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 4 states. [2019-12-07 18:35:44,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:44,319 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2019-12-07 18:35:44,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:35:44,320 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-07 18:35:44,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:44,320 INFO L225 Difference]: With dead ends: 53 [2019-12-07 18:35:44,320 INFO L226 Difference]: Without dead ends: 44 [2019-12-07 18:35:44,321 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:35:44,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-12-07 18:35:44,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 31. [2019-12-07 18:35:44,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 18:35:44,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2019-12-07 18:35:44,326 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2019-12-07 18:35:44,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:44,326 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2019-12-07 18:35:44,326 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:35:44,326 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2019-12-07 18:35:44,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 18:35:44,327 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:44,327 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:44,327 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:44,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:44,327 INFO L82 PathProgramCache]: Analyzing trace with hash -555760345, now seen corresponding path program 1 times [2019-12-07 18:35:44,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:44,327 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727727665] [2019-12-07 18:35:44,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:44,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:44,361 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727727665] [2019-12-07 18:35:44,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:44,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:35:44,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165234082] [2019-12-07 18:35:44,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:35:44,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:35:44,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:35:44,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:35:44,362 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 4 states. [2019-12-07 18:35:44,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:44,390 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2019-12-07 18:35:44,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:35:44,391 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-12-07 18:35:44,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:44,392 INFO L225 Difference]: With dead ends: 55 [2019-12-07 18:35:44,392 INFO L226 Difference]: Without dead ends: 46 [2019-12-07 18:35:44,392 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:35:44,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-12-07 18:35:44,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 31. [2019-12-07 18:35:44,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 18:35:44,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2019-12-07 18:35:44,396 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 14 [2019-12-07 18:35:44,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:44,396 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2019-12-07 18:35:44,396 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:35:44,396 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2019-12-07 18:35:44,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 18:35:44,396 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:44,396 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:44,397 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:44,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:44,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1219247017, now seen corresponding path program 1 times [2019-12-07 18:35:44,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:35:44,397 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870961510] [2019-12-07 18:35:44,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:35:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:35:44,440 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:35:44,440 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:35:44,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:35:44 BoogieIcfgContainer [2019-12-07 18:35:44,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:35:44,459 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:35:44,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:35:44,459 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:35:44,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:35:44" (3/4) ... [2019-12-07 18:35:44,461 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:35:44,461 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:35:44,463 INFO L168 Benchmark]: Toolchain (without parser) took 924.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 943.1 MB in the beginning and 1.0 GB in the end (delta: -89.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:44,463 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:35:44,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 205.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -167.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:44,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:44,464 INFO L168 Benchmark]: Boogie Preprocessor took 20.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:44,465 INFO L168 Benchmark]: RCFGBuilder took 245.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:44,465 INFO L168 Benchmark]: TraceAbstraction took 419.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.4 MB). Peak memory consumption was 47.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:44,465 INFO L168 Benchmark]: Witness Printer took 2.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:35:44,468 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 205.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -167.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 245.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 419.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.4 MB). Peak memory consumption was 47.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 79, overapproximation of someUnaryDOUBLEoperation at line 75. Possible FailurePath: [L74] double x = 0.0; [L75] double y = -0.0; [L19] __uint32_t msw, lsw; [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (msw) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (lsw) = ew_u.parts.lsw [L28-L29] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L31-L32] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L34-L35] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L38-L39] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L42] return 0; [L46] COND TRUE __fpclassify_double(x) == 0 [L47] return y; [L76] double res = fmin_double(x, y); [L79] EXPR res == -0.0 && __signbit_double(res) == 1 [L79] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L80] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 135 SDtfs, 32 SDslu, 140 SDs, 0 SdLazy, 30 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 3 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: 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 0.1.25-f470102 [2019-12-07 18:35:45,954 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-12-07 18:35:45,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:35:45,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:35:45,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:35:45,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:35:45,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:35:45,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:35:45,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:35:45,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:35:45,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:35:45,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:35:45,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:35:45,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:35:45,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:35:45,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:35:45,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:35:45,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:35:45,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:35:45,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:35:45,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:35:45,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:35:45,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:35:45,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:35:45,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:35:45,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:35:45,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:35:45,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:35:45,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:35:45,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:35:45,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:35:45,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:35:45,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:35:45,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:35:45,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:35:45,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:35:45,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:35:45,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:35:45,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:35:45,997 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 18:35:46,009 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:35:46,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:35:46,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:35:46,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:35:46,011 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:35:46,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:35:46,011 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:35:46,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:35:46,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:35:46,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:35:46,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:35:46,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:35:46,012 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 18:35:46,012 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 18:35:46,013 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:35:46,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:35:46,013 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:35:46,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:35:46,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:35:46,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:35:46,014 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:35:46,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:35:46,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:35:46,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:35:46,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:35:46,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:35:46,015 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 18:35:46,015 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 18:35:46,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:35:46,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:35:46,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 18:35:46,016 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_c374a630-7b8e-4540-9624-86e6f7a28508/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(__VERIFIER_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 -> 4284cb37841cd94fe17da64cc250a8a1e69c6375 [2019-12-07 18:35:46,205 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:35:46,214 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:35:46,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:35:46,218 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:35:46,218 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:35:46,219 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2019-12-07 18:35:46,258 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/data/1ed93cb3d/14faf9faad69487282d01ab0a17eea6a/FLAG6c94da23b [2019-12-07 18:35:46,588 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:35:46,589 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2019-12-07 18:35:46,595 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/data/1ed93cb3d/14faf9faad69487282d01ab0a17eea6a/FLAG6c94da23b [2019-12-07 18:35:46,606 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/data/1ed93cb3d/14faf9faad69487282d01ab0a17eea6a [2019-12-07 18:35:46,609 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:35:46,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:35:46,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:35:46,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:35:46,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:35:46,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:35:46" (1/1) ... [2019-12-07 18:35:46,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41944eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:46, skipping insertion in model container [2019-12-07 18:35:46,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:35:46" (1/1) ... [2019-12-07 18:35:46,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:35:46,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:35:46,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:35:46,751 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:35:46,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:35:46,832 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:35:46,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:46 WrapperNode [2019-12-07 18:35:46,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:35:46,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:35:46,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:35:46,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:35:46,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:46" (1/1) ... [2019-12-07 18:35:46,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:46" (1/1) ... [2019-12-07 18:35:46,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:35:46,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:35:46,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:35:46,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:35:46,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:46" (1/1) ... [2019-12-07 18:35:46,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:46" (1/1) ... [2019-12-07 18:35:46,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:46" (1/1) ... [2019-12-07 18:35:46,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:46" (1/1) ... [2019-12-07 18:35:46,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:46" (1/1) ... [2019-12-07 18:35:46,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:46" (1/1) ... [2019-12-07 18:35:46,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:46" (1/1) ... [2019-12-07 18:35:46,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:35:46,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:35:46,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:35:46,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:35:46,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/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 [2019-12-07 18:35:46,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 18:35:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:35:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 18:35:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:35:46,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:35:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:35:47,170 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:35:47,170 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-12-07 18:35:47,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:35:47 BoogieIcfgContainer [2019-12-07 18:35:47,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:35:47,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:35:47,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:35:47,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:35:47,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:35:46" (1/3) ... [2019-12-07 18:35:47,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c257943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:35:47, skipping insertion in model container [2019-12-07 18:35:47,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:35:46" (2/3) ... [2019-12-07 18:35:47,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c257943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:35:47, skipping insertion in model container [2019-12-07 18:35:47,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:35:47" (3/3) ... [2019-12-07 18:35:47,176 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232a.c [2019-12-07 18:35:47,182 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:35:47,187 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:35:47,194 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:35:47,209 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:35:47,209 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:35:47,209 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:35:47,209 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:35:47,209 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:35:47,209 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:35:47,209 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:35:47,209 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:35:47,218 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-12-07 18:35:47,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:35:47,222 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:47,223 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:47,223 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:47,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:47,227 INFO L82 PathProgramCache]: Analyzing trace with hash -958075201, now seen corresponding path program 1 times [2019-12-07 18:35:47,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:35:47,234 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290153255] [2019-12-07 18:35:47,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/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 [2019-12-07 18:35:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:47,289 INFO L264 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 18:35:47,293 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:47,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:47,303 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:35:47,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:47,307 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1290153255] [2019-12-07 18:35:47,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:47,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 18:35:47,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365805084] [2019-12-07 18:35:47,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:35:47,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:35:47,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:35:47,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:35:47,326 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2019-12-07 18:35:47,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:47,343 INFO L93 Difference]: Finished difference Result 62 states and 98 transitions. [2019-12-07 18:35:47,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:35:47,344 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 18:35:47,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:47,351 INFO L225 Difference]: With dead ends: 62 [2019-12-07 18:35:47,352 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 18:35:47,354 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:35:47,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 18:35:47,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-07 18:35:47,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 18:35:47,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2019-12-07 18:35:47,379 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 10 [2019-12-07 18:35:47,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:47,379 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2019-12-07 18:35:47,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:35:47,379 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2019-12-07 18:35:47,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:35:47,380 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:47,380 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:47,581 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 18:35:47,581 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:47,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:47,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1001584898, now seen corresponding path program 1 times [2019-12-07 18:35:47,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:35:47,586 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809751665] [2019-12-07 18:35:47,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/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 [2019-12-07 18:35:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:47,682 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:35:47,683 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:47,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:47,703 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:35:47,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:47,716 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809751665] [2019-12-07 18:35:47,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:47,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 18:35:47,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909852796] [2019-12-07 18:35:47,718 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:35:47,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:35:47,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:35:47,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:35:47,718 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 6 states. [2019-12-07 18:35:47,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:47,809 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2019-12-07 18:35:47,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:35:47,810 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-12-07 18:35:47,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:47,810 INFO L225 Difference]: With dead ends: 68 [2019-12-07 18:35:47,811 INFO L226 Difference]: Without dead ends: 59 [2019-12-07 18:35:47,811 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:35:47,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-12-07 18:35:47,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 31. [2019-12-07 18:35:47,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 18:35:47,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2019-12-07 18:35:47,816 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2019-12-07 18:35:47,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:47,817 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2019-12-07 18:35:47,817 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:35:47,817 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2019-12-07 18:35:47,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 18:35:47,817 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:47,818 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:48,018 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 18:35:48,019 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:48,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:48,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1219247017, now seen corresponding path program 1 times [2019-12-07 18:35:48,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:35:48,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [411153164] [2019-12-07 18:35:48,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/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 [2019-12-07 18:35:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:48,119 INFO L264 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 18:35:48,121 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:48,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:48,151 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:35:48,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:48,179 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [411153164] [2019-12-07 18:35:48,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:48,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 18:35:48,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227746144] [2019-12-07 18:35:48,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:35:48,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:35:48,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:35:48,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:35:48,181 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 6 states. [2019-12-07 18:35:48,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:48,251 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2019-12-07 18:35:48,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:35:48,251 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-12-07 18:35:48,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:48,252 INFO L225 Difference]: With dead ends: 52 [2019-12-07 18:35:48,252 INFO L226 Difference]: Without dead ends: 28 [2019-12-07 18:35:48,252 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 18:35:48,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-07 18:35:48,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-07 18:35:48,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-07 18:35:48,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2019-12-07 18:35:48,257 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 14 [2019-12-07 18:35:48,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:48,257 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2019-12-07 18:35:48,257 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:35:48,257 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2019-12-07 18:35:48,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 18:35:48,258 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:48,258 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:48,459 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 18:35:48,459 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:48,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:48,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1012446717, now seen corresponding path program 1 times [2019-12-07 18:35:48,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:35:48,462 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [20873711] [2019-12-07 18:35:48,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/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 [2019-12-07 18:35:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:48,592 INFO L264 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:35:48,593 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:48,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:48,603 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:35:48,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:48,614 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [20873711] [2019-12-07 18:35:48,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:48,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 18:35:48,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60900092] [2019-12-07 18:35:48,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:35:48,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:35:48,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:35:48,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:35:48,615 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand 6 states. [2019-12-07 18:35:48,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:48,724 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2019-12-07 18:35:48,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:35:48,724 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-12-07 18:35:48,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:48,725 INFO L225 Difference]: With dead ends: 65 [2019-12-07 18:35:48,725 INFO L226 Difference]: Without dead ends: 56 [2019-12-07 18:35:48,726 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:35:48,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-12-07 18:35:48,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 30. [2019-12-07 18:35:48,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 18:35:48,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2019-12-07 18:35:48,729 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 16 [2019-12-07 18:35:48,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:48,729 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2019-12-07 18:35:48,730 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:35:48,730 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2019-12-07 18:35:48,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 18:35:48,730 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:48,730 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:48,931 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 18:35:48,931 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:48,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:48,932 INFO L82 PathProgramCache]: Analyzing trace with hash -414082333, now seen corresponding path program 1 times [2019-12-07 18:35:48,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:35:48,932 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [259362561] [2019-12-07 18:35:48,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 18:35:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:49,065 INFO L264 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 18:35:49,066 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:49,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:49,082 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:35:49,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:49,107 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [259362561] [2019-12-07 18:35:49,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:49,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 18:35:49,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746373820] [2019-12-07 18:35:49,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:35:49,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:35:49,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:35:49,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:35:49,108 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 4 states. [2019-12-07 18:35:49,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:49,117 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2019-12-07 18:35:49,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:35:49,118 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-12-07 18:35:49,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:49,119 INFO L225 Difference]: With dead ends: 40 [2019-12-07 18:35:49,119 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 18:35:49,119 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:35:49,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 18:35:49,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-07 18:35:49,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 18:35:49,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2019-12-07 18:35:49,122 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 18 [2019-12-07 18:35:49,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:49,123 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2019-12-07 18:35:49,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:35:49,123 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2019-12-07 18:35:49,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 18:35:49,123 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:49,123 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:49,324 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 18:35:49,325 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:49,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:49,326 INFO L82 PathProgramCache]: Analyzing trace with hash -356824031, now seen corresponding path program 1 times [2019-12-07 18:35:49,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:35:49,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [805681053] [2019-12-07 18:35:49,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 18:35:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:49,446 INFO L264 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:35:49,447 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:49,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:49,484 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:35:49,485 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:35:49,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:49,520 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [805681053] [2019-12-07 18:35:49,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:49,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-12-07 18:35:49,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014925893] [2019-12-07 18:35:49,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 18:35:49,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:35:49,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 18:35:49,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 18:35:49,521 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand 9 states. [2019-12-07 18:35:49,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:49,603 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2019-12-07 18:35:49,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:35:49,604 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2019-12-07 18:35:49,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:49,604 INFO L225 Difference]: With dead ends: 42 [2019-12-07 18:35:49,604 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 18:35:49,605 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2019-12-07 18:35:49,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 18:35:49,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2019-12-07 18:35:49,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 18:35:49,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2019-12-07 18:35:49,608 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 18 [2019-12-07 18:35:49,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:49,608 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2019-12-07 18:35:49,608 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 18:35:49,609 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2019-12-07 18:35:49,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 18:35:49,609 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:49,609 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:49,810 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 18:35:49,811 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:49,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:49,812 INFO L82 PathProgramCache]: Analyzing trace with hash -208358251, now seen corresponding path program 1 times [2019-12-07 18:35:49,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:35:49,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568169209] [2019-12-07 18:35:49,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 18:35:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:49,934 INFO L264 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 18:35:49,936 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:49,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:49,959 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:35:49,974 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:35:50,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:50,053 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568169209] [2019-12-07 18:35:50,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:50,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 18:35:50,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615911909] [2019-12-07 18:35:50,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:35:50,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:35:50,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:35:50,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:35:50,054 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 8 states. [2019-12-07 18:35:50,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:50,127 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2019-12-07 18:35:50,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:35:50,128 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-12-07 18:35:50,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:50,129 INFO L225 Difference]: With dead ends: 45 [2019-12-07 18:35:50,129 INFO L226 Difference]: Without dead ends: 27 [2019-12-07 18:35:50,129 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:35:50,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-07 18:35:50,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-07 18:35:50,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 18:35:50,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2019-12-07 18:35:50,132 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 19 [2019-12-07 18:35:50,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:50,132 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2019-12-07 18:35:50,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:35:50,133 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-12-07 18:35:50,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 18:35:50,133 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:35:50,133 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:35:50,334 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 18:35:50,335 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:35:50,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:35:50,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1524231306, now seen corresponding path program 1 times [2019-12-07 18:35:50,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:35:50,338 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115773141] [2019-12-07 18:35:50,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 18:35:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:35:50,458 INFO L264 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2019-12-07 18:35:50,460 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:35:50,508 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:35:50,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:50,538 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:35:50,540 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:35:50,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:35:50,749 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1115773141] [2019-12-07 18:35:50,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:35:50,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2019-12-07 18:35:50,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370269727] [2019-12-07 18:35:50,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-12-07 18:35:50,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:35:50,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-12-07 18:35:50,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2019-12-07 18:35:50,751 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 16 states. [2019-12-07 18:35:50,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:35:50,956 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-12-07 18:35:50,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 18:35:50,957 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 22 [2019-12-07 18:35:50,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:35:50,957 INFO L225 Difference]: With dead ends: 27 [2019-12-07 18:35:50,957 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:35:50,958 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2019-12-07 18:35:50,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:35:50,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:35:50,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:35:50,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:35:50,959 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-12-07 18:35:50,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:35:50,959 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:35:50,959 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-12-07 18:35:50,959 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:35:50,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:35:51,159 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 18:35:51,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:35:51,383 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:35:51,383 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:35:51,383 INFO L246 CegarLoopResult]: For program point L21-1(lines 21 26) no Hoare annotation was computed. [2019-12-07 18:35:51,383 INFO L242 CegarLoopResult]: At program point L21-2(lines 21 26) the Hoare annotation is: (and (= (_ +zero 11 53) ULTIMATE.start_fmin_double_~x) (= ULTIMATE.start_fmin_double_~y (fp.neg (_ +zero 11 53))) (= ULTIMATE.start___fpclassify_double_~x (_ +zero 11 53))) [2019-12-07 18:35:51,383 INFO L246 CegarLoopResult]: For program point L21-3(lines 18 43) no Hoare annotation was computed. [2019-12-07 18:35:51,384 INFO L246 CegarLoopResult]: For program point L21-5(lines 21 26) no Hoare annotation was computed. [2019-12-07 18:35:51,384 INFO L242 CegarLoopResult]: At program point L21-6(lines 21 26) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= (_ +zero 11 53) ULTIMATE.start_fmin_double_~x) (= ULTIMATE.start___fpclassify_double_~x .cse0) (= ULTIMATE.start_fmin_double_~y .cse0))) [2019-12-07 18:35:51,384 INFO L246 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2019-12-07 18:35:51,384 INFO L246 CegarLoopResult]: For program point L46(lines 46 47) no Hoare annotation was computed. [2019-12-07 18:35:51,384 INFO L246 CegarLoopResult]: For program point L21-7(lines 18 43) no Hoare annotation was computed. [2019-12-07 18:35:51,384 INFO L246 CegarLoopResult]: For program point L79-2(lines 79 82) no Hoare annotation was computed. [2019-12-07 18:35:51,384 INFO L246 CegarLoopResult]: For program point L38(lines 38 42) no Hoare annotation was computed. [2019-12-07 18:35:51,384 INFO L246 CegarLoopResult]: For program point L38-1(lines 38 42) no Hoare annotation was computed. [2019-12-07 18:35:51,384 INFO L242 CegarLoopResult]: At program point L63(lines 54 64) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= .cse0 |ULTIMATE.start_fmin_double_#res|) (exists ((v_skolemized_v_prenex_4_3 (_ BitVec 64))) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_4_3) ((_ extract 62 52) v_skolemized_v_prenex_4_3) ((_ extract 51 0) v_skolemized_v_prenex_4_3)) (fp.neg (_ +zero 11 53))) (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) v_skolemized_v_prenex_4_3)))) (= (_ +zero 11 53) ULTIMATE.start_fmin_double_~x) (= ULTIMATE.start_main_~res~0 .cse0) (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64))) (and (= ULTIMATE.start___signbit_double_~msw~1 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_8|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|)) (fp.neg (_ +zero 11 53))))) (= (_ bv0 32) (bvadd |ULTIMATE.start___signbit_double_#res| (_ bv4294967295 32))) (= ULTIMATE.start___fpclassify_double_~x .cse0) |ULTIMATE.start_main_#t~short11| (= ULTIMATE.start___signbit_double_~x .cse0) (= ULTIMATE.start_fmin_double_~y .cse0))) [2019-12-07 18:35:51,384 INFO L246 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2019-12-07 18:35:51,385 INFO L246 CegarLoopResult]: For program point L31(lines 31 42) no Hoare annotation was computed. [2019-12-07 18:35:51,385 INFO L246 CegarLoopResult]: For program point L31-1(lines 31 42) no Hoare annotation was computed. [2019-12-07 18:35:51,385 INFO L246 CegarLoopResult]: For program point L48(lines 48 49) no Hoare annotation was computed. [2019-12-07 18:35:51,385 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 18:35:51,385 INFO L246 CegarLoopResult]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2019-12-07 18:35:51,385 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2019-12-07 18:35:51,385 INFO L242 CegarLoopResult]: At program point L57-2(lines 57 61) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= .cse0 |ULTIMATE.start_fmin_double_#res|) (exists ((v_skolemized_v_prenex_4_3 (_ BitVec 64))) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_4_3) ((_ extract 62 52) v_skolemized_v_prenex_4_3) ((_ extract 51 0) v_skolemized_v_prenex_4_3)) (fp.neg (_ +zero 11 53))) (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) v_skolemized_v_prenex_4_3)))) (= (_ +zero 11 53) ULTIMATE.start_fmin_double_~x) (= ULTIMATE.start_main_~res~0 .cse0) (= ULTIMATE.start___fpclassify_double_~x .cse0) |ULTIMATE.start_main_#t~short11| (= ULTIMATE.start___signbit_double_~x .cse0) (= ULTIMATE.start_fmin_double_~y .cse0))) [2019-12-07 18:35:51,386 INFO L246 CegarLoopResult]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2019-12-07 18:35:51,386 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:35:51,386 INFO L242 CegarLoopResult]: At program point L42(lines 18 43) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) (_ +zero 11 53)) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0))) (= (_ +zero 11 53) ULTIMATE.start_fmin_double_~x) (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_double_#res|)) (= ULTIMATE.start_fmin_double_~y (fp.neg (_ +zero 11 53))) (= ULTIMATE.start___fpclassify_double_~x (_ +zero 11 53))) [2019-12-07 18:35:51,386 INFO L242 CegarLoopResult]: At program point L42-1(lines 18 43) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (exists ((v_skolemized_v_prenex_4_3 (_ BitVec 64))) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_4_3) ((_ extract 62 52) v_skolemized_v_prenex_4_3) ((_ extract 51 0) v_skolemized_v_prenex_4_3)) (fp.neg (_ +zero 11 53))) (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) v_skolemized_v_prenex_4_3)))) (= (_ +zero 11 53) ULTIMATE.start_fmin_double_~x) (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_double_#res|)) (= ULTIMATE.start___fpclassify_double_~x .cse0) (= ULTIMATE.start_fmin_double_~y .cse0))) [2019-12-07 18:35:51,386 INFO L246 CegarLoopResult]: For program point L34(lines 34 42) no Hoare annotation was computed. [2019-12-07 18:35:51,386 INFO L246 CegarLoopResult]: For program point L34-1(lines 34 42) no Hoare annotation was computed. [2019-12-07 18:35:51,386 INFO L249 CegarLoopResult]: At program point L84(lines 66 85) the Hoare annotation is: true [2019-12-07 18:35:51,387 INFO L246 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2019-12-07 18:35:51,387 INFO L246 CegarLoopResult]: For program point L51-2(line 51) no Hoare annotation was computed. [2019-12-07 18:35:51,387 INFO L242 CegarLoopResult]: At program point L51-3(lines 45 52) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= .cse0 |ULTIMATE.start_fmin_double_#res|) (exists ((v_skolemized_v_prenex_4_3 (_ BitVec 64))) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_4_3) ((_ extract 62 52) v_skolemized_v_prenex_4_3) ((_ extract 51 0) v_skolemized_v_prenex_4_3)) (fp.neg (_ +zero 11 53))) (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) v_skolemized_v_prenex_4_3)))) (= (_ +zero 11 53) ULTIMATE.start_fmin_double_~x) (= ULTIMATE.start___fpclassify_double_~x .cse0) (= ULTIMATE.start_fmin_double_~y .cse0))) [2019-12-07 18:35:51,393 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,394 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,394 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,394 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,394 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 18:35:51,395 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 18:35:51,395 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 18:35:51,395 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 18:35:51,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 18:35:51,402 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 18:35:51,402 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 18:35:51,402 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 18:35:51,404 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 18:35:51,404 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 18:35:51,404 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 18:35:51,405 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 18:35:51,405 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 18:35:51,405 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 18:35:51,406 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 18:35:51,406 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 18:35:51,406 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,406 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,406 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,407 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,407 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,407 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,411 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,413 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,413 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,413 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,413 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:35:51 BoogieIcfgContainer [2019-12-07 18:35:51,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:35:51,416 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:35:51,416 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:35:51,416 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:35:51,417 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:35:47" (3/4) ... [2019-12-07 18:35:51,427 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:35:51,439 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2019-12-07 18:35:51,439 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-12-07 18:35:51,439 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 18:35:51,457 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~Pluszero~LONGDOUBLE() && v_skolemized_q#valueAsBitvector_7[63:32] == msw) && ~Pluszero~LONGDOUBLE() == x) && !(0bv32 == \result)) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE() [2019-12-07 18:35:51,457 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result && (\exists v_skolemized_v_prenex_4_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_4_3[63:63], v_skolemized_v_prenex_4_3[62:52], v_skolemized_v_prenex_4_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_v_prenex_4_3[63:32])) && ~Pluszero~LONGDOUBLE() == x) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2019-12-07 18:35:51,458 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result && (\exists v_skolemized_v_prenex_4_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_4_3[63:63], v_skolemized_v_prenex_4_3[62:52], v_skolemized_v_prenex_4_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_v_prenex_4_3[63:32])) && ~Pluszero~LONGDOUBLE() == x) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2019-12-07 18:35:51,458 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result && (\exists v_skolemized_v_prenex_4_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_4_3[63:63], v_skolemized_v_prenex_4_3[62:52], v_skolemized_v_prenex_4_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_v_prenex_4_3[63:32])) && ~Pluszero~LONGDOUBLE() == x) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()))) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2019-12-07 18:35:51,458 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists v_skolemized_v_prenex_4_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_4_3[63:63], v_skolemized_v_prenex_4_3[62:52], v_skolemized_v_prenex_4_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_v_prenex_4_3[63:32]) && ~Pluszero~LONGDOUBLE() == x) && !(0bv32 == \result)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2019-12-07 18:35:51,481 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c374a630-7b8e-4540-9624-86e6f7a28508/bin/uautomizer/witness.graphml [2019-12-07 18:35:51,481 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:35:51,482 INFO L168 Benchmark]: Toolchain (without parser) took 4872.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 213.4 MB). Free memory was 953.7 MB in the beginning and 1.2 GB in the end (delta: -247.9 MB). Peak memory consumption was 298.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:51,482 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:35:51,482 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -189.3 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:51,483 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:51,483 INFO L168 Benchmark]: Boogie Preprocessor took 23.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:35:51,483 INFO L168 Benchmark]: RCFGBuilder took 285.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:51,483 INFO L168 Benchmark]: TraceAbstraction took 4243.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 812.3 MB in the end (delta: 298.5 MB). Peak memory consumption was 298.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:51,483 INFO L168 Benchmark]: Witness Printer took 65.01 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.1 MB). Free memory was 812.3 MB in the beginning and 1.2 GB in the end (delta: -389.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:35:51,485 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 222.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -189.3 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 285.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4243.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 812.3 MB in the end (delta: 298.5 MB). Peak memory consumption was 298.5 MB. Max. memory is 11.5 GB. * Witness Printer took 65.01 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.1 MB). Free memory was 812.3 MB in the beginning and 1.2 GB in the end (delta: -389.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 54]: Loop Invariant [2019-12-07 18:35:51,489 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,490 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,490 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,490 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,490 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 18:35:51,490 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 18:35:51,490 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 18:35:51,491 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 18:35:51,491 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 18:35:51,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 18:35:51,493 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 18:35:51,493 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] Derived loop invariant: ((((((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result && (\exists v_skolemized_v_prenex_4_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_4_3[63:63], v_skolemized_v_prenex_4_3[62:52], v_skolemized_v_prenex_4_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_v_prenex_4_3[63:32])) && ~Pluszero~LONGDOUBLE() == x) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()))) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (~Pluszero~LONGDOUBLE() == x && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 18]: Loop Invariant [2019-12-07 18:35:51,494 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 18:35:51,494 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 18:35:51,494 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 18:35:51,494 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 18:35:51,494 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 18:35:51,494 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 18:35:51,495 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 18:35:51,495 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: ((((\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~Pluszero~LONGDOUBLE() && v_skolemized_q#valueAsBitvector_7[63:32] == msw) && ~Pluszero~LONGDOUBLE() == x) && !(0bv32 == \result)) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 45]: Loop Invariant [2019-12-07 18:35:51,495 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,495 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,495 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,496 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,496 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,496 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,496 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,496 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] Derived loop invariant: (((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result && (\exists v_skolemized_v_prenex_4_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_4_3[63:63], v_skolemized_v_prenex_4_3[62:52], v_skolemized_v_prenex_4_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_v_prenex_4_3[63:32])) && ~Pluszero~LONGDOUBLE() == x) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 57]: Loop Invariant [2019-12-07 18:35:51,497 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,497 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,497 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,497 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,498 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,498 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,498 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,498 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] Derived loop invariant: ((((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result && (\exists v_skolemized_v_prenex_4_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_4_3[63:63], v_skolemized_v_prenex_4_3[62:52], v_skolemized_v_prenex_4_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_v_prenex_4_3[63:32])) && ~Pluszero~LONGDOUBLE() == x) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (~Pluszero~LONGDOUBLE() == x && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 18]: Loop Invariant [2019-12-07 18:35:51,498 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,499 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,499 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,499 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,499 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,499 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,499 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 18:35:51,499 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] Derived loop invariant: ((((\exists v_skolemized_v_prenex_4_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_4_3[63:63], v_skolemized_v_prenex_4_3[62:52], v_skolemized_v_prenex_4_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_v_prenex_4_3[63:32]) && ~Pluszero~LONGDOUBLE() == x) && !(0bv32 == \result)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Result: SAFE, OverallTime: 3.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 252 SDtfs, 332 SDslu, 546 SDs, 0 SdLazy, 173 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 196 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 8 MinimizatonAttempts, 61 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 16 NumberOfFragments, 221 HoareAnnotationTreeSize, 8 FomulaSimplifications, 56 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 28 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 240 ConstructedInterpolants, 32 QuantifiedInterpolants, 21300 SizeOfPredicates, 38 NumberOfNonLiveVariables, 435 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...