./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/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 4632d05eeeec8083fb0c38c2d70eb822a2624ecb .............................................................................................................................................................................................................................................................................................................................................. 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_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/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 4632d05eeeec8083fb0c38c2d70eb822a2624ecb ................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:01:24,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:01:24,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:01:24,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:01:24,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:01:24,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:01:24,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:01:24,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:01:24,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:01:24,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:01:24,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:01:24,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:01:24,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:01:24,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:01:24,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:01:24,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:01:24,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:01:24,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:01:24,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:01:24,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:01:24,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:01:24,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:01:24,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:01:24,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:01:24,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:01:24,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:01:24,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:01:24,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:01:24,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:01:24,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:01:24,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:01:24,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:01:24,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:01:24,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:01:24,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:01:24,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:01:24,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:01:24,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:01:24,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:01:24,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:01:24,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:01:24,801 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:01:24,828 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:01:24,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:01:24,829 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:01:24,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:01:24,830 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:01:24,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:01:24,830 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:01:24,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:01:24,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:01:24,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:01:24,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:01:24,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:01:24,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:01:24,832 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:01:24,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:01:24,832 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:01:24,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:01:24,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:01:24,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:01:24,833 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:01:24,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:01:24,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:01:24,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:01:24,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:01:24,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:01:24,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:01:24,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:01:24,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:01:24,835 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_7eed51ad-d875-479e-b5a7-51d072a41407/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 -> 4632d05eeeec8083fb0c38c2d70eb822a2624ecb [2019-11-16 00:01:24,877 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:01:24,893 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:01:24,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:01:24,897 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:01:24,898 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:01:24,899 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-11-16 00:01:24,965 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/data/8f01ec5b7/f9d7cb0e553b4f8095c91633c38273c1/FLAGb68159d5b [2019-11-16 00:01:25,421 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:01:25,421 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-11-16 00:01:25,427 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/data/8f01ec5b7/f9d7cb0e553b4f8095c91633c38273c1/FLAGb68159d5b [2019-11-16 00:01:25,832 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/data/8f01ec5b7/f9d7cb0e553b4f8095c91633c38273c1 [2019-11-16 00:01:25,835 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:01:25,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:01:25,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:01:25,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:01:25,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:01:25,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:01:25" (1/1) ... [2019-11-16 00:01:25,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62c6c6fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:25, skipping insertion in model container [2019-11-16 00:01:25,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:01:25" (1/1) ... [2019-11-16 00:01:25,854 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:01:25,879 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:01:26,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:01:26,130 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:01:26,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:01:26,182 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:01:26,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:26 WrapperNode [2019-11-16 00:01:26,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:01:26,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:01:26,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:01:26,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:01:26,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:26" (1/1) ... [2019-11-16 00:01:26,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:26" (1/1) ... [2019-11-16 00:01:26,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:01:26,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:01:26,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:01:26,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:01:26,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:26" (1/1) ... [2019-11-16 00:01:26,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:26" (1/1) ... [2019-11-16 00:01:26,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:26" (1/1) ... [2019-11-16 00:01:26,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:26" (1/1) ... [2019-11-16 00:01:26,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:26" (1/1) ... [2019-11-16 00:01:26,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:26" (1/1) ... [2019-11-16 00:01:26,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:26" (1/1) ... [2019-11-16 00:01:26,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:01:26,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:01:26,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:01:26,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:01:26,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/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 [2019-11-16 00:01:26,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-16 00:01:26,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:01:26,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-16 00:01:26,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:01:26,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:01:26,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-16 00:01:26,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:01:26,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:01:26,891 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:01:26,891 INFO L284 CfgBuilder]: Removed 30 assume(true) statements. [2019-11-16 00:01:26,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:26 BoogieIcfgContainer [2019-11-16 00:01:26,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:01:26,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:01:26,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:01:26,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:01:26,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:01:25" (1/3) ... [2019-11-16 00:01:26,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b9032b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:26, skipping insertion in model container [2019-11-16 00:01:26,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:26" (2/3) ... [2019-11-16 00:01:26,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b9032b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:26, skipping insertion in model container [2019-11-16 00:01:26,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:26" (3/3) ... [2019-11-16 00:01:26,901 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2019-11-16 00:01:26,911 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:01:26,918 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:01:26,931 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:01:26,953 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:01:26,953 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:01:26,954 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:01:26,954 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:01:26,954 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:01:26,954 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:01:26,954 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:01:26,954 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:01:26,969 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-11-16 00:01:26,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-16 00:01:26,976 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:01:26,977 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:01:26,979 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:01:26,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:01:26,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1560975081, now seen corresponding path program 1 times [2019-11-16 00:01:26,994 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:01:26,994 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023245044] [2019-11-16 00:01:26,995 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:01:26,995 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:01:26,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:01:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:01:27,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:27,123 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023245044] [2019-11-16 00:01:27,124 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:01:27,124 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-16 00:01:27,124 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848762618] [2019-11-16 00:01:27,129 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:01:27,129 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:01:27,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:01:27,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:01:27,146 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2019-11-16 00:01:27,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:01:27,168 INFO L93 Difference]: Finished difference Result 86 states and 138 transitions. [2019-11-16 00:01:27,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:01:27,170 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-16 00:01:27,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:01:27,182 INFO L225 Difference]: With dead ends: 86 [2019-11-16 00:01:27,182 INFO L226 Difference]: Without dead ends: 41 [2019-11-16 00:01:27,189 INFO L600 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 [2019-11-16 00:01:27,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-16 00:01:27,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-11-16 00:01:27,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-16 00:01:27,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2019-11-16 00:01:27,240 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2019-11-16 00:01:27,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:01:27,241 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2019-11-16 00:01:27,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:01:27,241 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2019-11-16 00:01:27,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-16 00:01:27,244 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:01:27,244 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:01:27,245 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:01:27,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:01:27,245 INFO L82 PathProgramCache]: Analyzing trace with hash -11965906, now seen corresponding path program 1 times [2019-11-16 00:01:27,245 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:01:27,246 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779923477] [2019-11-16 00:01:27,246 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:01:27,246 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:01:27,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:01:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:01:27,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:27,429 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779923477] [2019-11-16 00:01:27,429 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:01:27,429 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-16 00:01:27,429 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656404550] [2019-11-16 00:01:27,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-16 00:01:27,431 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:01:27,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-16 00:01:27,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:01:27,432 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 3 states. [2019-11-16 00:01:27,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:01:27,457 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2019-11-16 00:01:27,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-16 00:01:27,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-16 00:01:27,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:01:27,459 INFO L225 Difference]: With dead ends: 44 [2019-11-16 00:01:27,459 INFO L226 Difference]: Without dead ends: 41 [2019-11-16 00:01:27,460 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:01:27,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-16 00:01:27,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-11-16 00:01:27,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-16 00:01:27,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2019-11-16 00:01:27,467 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 15 [2019-11-16 00:01:27,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:01:27,467 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2019-11-16 00:01:27,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-16 00:01:27,468 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2019-11-16 00:01:27,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-16 00:01:27,469 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:01:27,469 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:01:27,469 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:01:27,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:01:27,470 INFO L82 PathProgramCache]: Analyzing trace with hash -371067880, now seen corresponding path program 1 times [2019-11-16 00:01:27,470 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:01:27,470 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253198129] [2019-11-16 00:01:27,470 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:01:27,470 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:01:27,471 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:01:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:01:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:01:27,591 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:01:27,591 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:01:27,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:01:27 BoogieIcfgContainer [2019-11-16 00:01:27,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:01:27,626 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:01:27,627 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:01:27,627 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:01:27,627 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:26" (3/4) ... [2019-11-16 00:01:27,630 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:01:27,630 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:01:27,633 INFO L168 Benchmark]: Toolchain (without parser) took 1795.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -91.0 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:27,633 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:01:27,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -173.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:27,635 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.51 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:27,635 INFO L168 Benchmark]: Boogie Preprocessor took 42.24 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. [2019-11-16 00:01:27,636 INFO L168 Benchmark]: RCFGBuilder took 617.82 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: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:27,637 INFO L168 Benchmark]: TraceAbstraction took 732.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:27,637 INFO L168 Benchmark]: Witness Printer took 4.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:01:27,641 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 346.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -173.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.51 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.24 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 617.82 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: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 732.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.03 ms. Allocated memory is still 1.2 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: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 116, overapproximation of bitwiseAnd at line 33. Possible FailurePath: [L17] static const double one_modf = 1.0; VAL [one_modf=1] [L116] double x = 0.0 / 0.0; [L117] double iptr; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [one_modf=1] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=1] [L29] COND TRUE j0 < 20 VAL [one_modf=1] [L30] COND TRUE j0 < 0 VAL [one_modf=1] [L32] ieee_double_shape_type iw_u; [L33] iw_u.parts.msw = (i0 & 0x80000000) [L34] iw_u.parts.lsw = (0) [L35] EXPR iw_u.value [L35] (*iptr) = iw_u.value [L37] return x; VAL [one_modf=1] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) [L15] return x != x; VAL [one_modf=1] [L121] isnan_double(iptr) && !isnan_double(res) [L15] return x != x; VAL [one_modf=1] [L121] isnan_double(iptr) && !isnan_double(res) VAL [one_modf=1] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 0 SDslu, 40 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 0.1.24-cad4683 [2019-11-16 00:01:29,827 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-11-16 00:01:29,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:01:29,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:01:29,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:01:29,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:01:29,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:01:29,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:01:29,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:01:29,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:01:29,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:01:29,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:01:29,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:01:29,887 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-16 00:01:29,902 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:01:29,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:01:29,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:01:29,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:01:29,904 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:01:29,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:01:29,905 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:01:29,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:01:29,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:01:29,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:01:29,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:01:29,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:01:29,906 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 00:01:29,906 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 00:01:29,907 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:01:29,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:01:29,907 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:01:29,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:01:29,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:01:29,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:01:29,908 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:01:29,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:01:29,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:01:29,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:01:29,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:01:29,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:01:29,910 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 00:01:29,910 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 00:01:29,910 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:01:29,910 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 00:01:29,910 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_7eed51ad-d875-479e-b5a7-51d072a41407/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 -> 4632d05eeeec8083fb0c38c2d70eb822a2624ecb [2019-11-16 00:01:29,942 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:01:29,953 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:01:29,956 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:01:29,957 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:01:29,958 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:01:29,958 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-11-16 00:01:30,014 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/data/93a90945f/2a1133f415ff4ab6945fecbff1e8c369/FLAGf5344b91a [2019-11-16 00:01:30,466 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:01:30,467 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-11-16 00:01:30,474 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/data/93a90945f/2a1133f415ff4ab6945fecbff1e8c369/FLAGf5344b91a [2019-11-16 00:01:30,987 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/data/93a90945f/2a1133f415ff4ab6945fecbff1e8c369 [2019-11-16 00:01:30,991 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:01:30,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:01:30,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:01:30,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:01:30,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:01:30,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:01:30" (1/1) ... [2019-11-16 00:01:31,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f520ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:30, skipping insertion in model container [2019-11-16 00:01:31,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:01:30" (1/1) ... [2019-11-16 00:01:31,006 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:01:31,026 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:01:31,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:01:31,245 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:01:31,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:01:31,384 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:01:31,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:31 WrapperNode [2019-11-16 00:01:31,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:01:31,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:01:31,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:01:31,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:01:31,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:31" (1/1) ... [2019-11-16 00:01:31,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:31" (1/1) ... [2019-11-16 00:01:31,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:01:31,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:01:31,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:01:31,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:01:31,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:31" (1/1) ... [2019-11-16 00:01:31,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:31" (1/1) ... [2019-11-16 00:01:31,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:31" (1/1) ... [2019-11-16 00:01:31,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:31" (1/1) ... [2019-11-16 00:01:31,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:31" (1/1) ... [2019-11-16 00:01:31,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:31" (1/1) ... [2019-11-16 00:01:31,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:31" (1/1) ... [2019-11-16 00:01:31,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:01:31,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:01:31,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:01:31,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:01:31,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/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 [2019-11-16 00:01:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-16 00:01:31,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-16 00:01:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-16 00:01:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:01:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:01:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:01:31,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-16 00:01:31,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:01:32,856 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:01:32,856 INFO L284 CfgBuilder]: Removed 30 assume(true) statements. [2019-11-16 00:01:32,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:32 BoogieIcfgContainer [2019-11-16 00:01:32,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:01:32,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:01:32,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:01:32,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:01:32,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:01:30" (1/3) ... [2019-11-16 00:01:32,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f84c255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:32, skipping insertion in model container [2019-11-16 00:01:32,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:31" (2/3) ... [2019-11-16 00:01:32,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f84c255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:32, skipping insertion in model container [2019-11-16 00:01:32,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:32" (3/3) ... [2019-11-16 00:01:32,866 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2019-11-16 00:01:32,875 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:01:32,882 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:01:32,893 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:01:32,916 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:01:32,916 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:01:32,917 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:01:32,917 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:01:32,917 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:01:32,917 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:01:32,918 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:01:32,918 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:01:32,931 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-11-16 00:01:32,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-16 00:01:32,937 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:01:32,938 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:01:32,939 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:01:32,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:01:32,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1560975081, now seen corresponding path program 1 times [2019-11-16 00:01:32,955 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:01:32,955 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105994627] [2019-11-16 00:01:32,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/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 [2019-11-16 00:01:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:01:33,071 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-16 00:01:33,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:01:33,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:33,095 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:01:33,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:33,107 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105994627] [2019-11-16 00:01:33,108 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:01:33,108 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-16 00:01:33,109 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713498624] [2019-11-16 00:01:33,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:01:33,114 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:01:33,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:01:33,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:01:33,130 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2019-11-16 00:01:33,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:01:33,154 INFO L93 Difference]: Finished difference Result 86 states and 138 transitions. [2019-11-16 00:01:33,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:01:33,155 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-16 00:01:33,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:01:33,166 INFO L225 Difference]: With dead ends: 86 [2019-11-16 00:01:33,166 INFO L226 Difference]: Without dead ends: 41 [2019-11-16 00:01:33,169 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:01:33,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-16 00:01:33,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-11-16 00:01:33,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-16 00:01:33,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2019-11-16 00:01:33,213 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2019-11-16 00:01:33,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:01:33,213 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2019-11-16 00:01:33,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:01:33,214 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2019-11-16 00:01:33,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-16 00:01:33,217 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:01:33,217 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:01:33,430 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-16 00:01:33,431 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:01:33,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:01:33,431 INFO L82 PathProgramCache]: Analyzing trace with hash -11965906, now seen corresponding path program 1 times [2019-11-16 00:01:33,433 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:01:33,433 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858547744] [2019-11-16 00:01:33,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/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 [2019-11-16 00:01:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:01:33,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-16 00:01:33,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:01:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:33,670 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:01:33,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:33,810 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858547744] [2019-11-16 00:01:33,810 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:01:33,810 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-16 00:01:33,810 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523027187] [2019-11-16 00:01:33,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-16 00:01:33,812 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:01:33,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-16 00:01:33,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-16 00:01:33,813 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 8 states. [2019-11-16 00:01:34,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:01:34,729 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2019-11-16 00:01:34,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:01:34,730 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-16 00:01:34,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:01:34,731 INFO L225 Difference]: With dead ends: 48 [2019-11-16 00:01:34,731 INFO L226 Difference]: Without dead ends: 19 [2019-11-16 00:01:34,732 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-11-16 00:01:34,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-16 00:01:34,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-16 00:01:34,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-16 00:01:34,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-11-16 00:01:34,737 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2019-11-16 00:01:34,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:01:34,738 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-11-16 00:01:34,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-16 00:01:34,738 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-11-16 00:01:34,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-16 00:01:34,739 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:01:34,739 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:01:34,939 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-16 00:01:34,940 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:01:34,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:01:34,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1834889353, now seen corresponding path program 1 times [2019-11-16 00:01:34,941 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:01:34,941 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521522694] [2019-11-16 00:01:34,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/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 [2019-11-16 00:01:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:01:35,317 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-16 00:01:35,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:01:35,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:35,332 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-16 00:01:35,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:01:35,334 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521522694] [2019-11-16 00:01:35,334 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:01:35,334 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-16 00:01:35,334 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842252041] [2019-11-16 00:01:35,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-16 00:01:35,335 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-16 00:01:35,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-16 00:01:35,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:01:35,336 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 3 states. [2019-11-16 00:01:35,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:01:35,384 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-11-16 00:01:35,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-16 00:01:35,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-16 00:01:35,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:01:35,386 INFO L225 Difference]: With dead ends: 22 [2019-11-16 00:01:35,386 INFO L226 Difference]: Without dead ends: 19 [2019-11-16 00:01:35,386 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:01:35,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-16 00:01:35,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-16 00:01:35,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-16 00:01:35,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2019-11-16 00:01:35,391 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 17 [2019-11-16 00:01:35,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:01:35,391 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2019-11-16 00:01:35,391 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-16 00:01:35,392 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2019-11-16 00:01:35,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-16 00:01:35,392 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:01:35,393 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:01:35,593 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-16 00:01:35,593 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:01:35,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:01:35,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1046870301, now seen corresponding path program 1 times [2019-11-16 00:01:35,594 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:01:35,595 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892503467] [2019-11-16 00:01:35,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/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 [2019-11-16 00:01:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:01:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:01:36,620 INFO L168 tionRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-16 00:01:36,620 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:01:36,820 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-16 00:01:36,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:01:36 BoogieIcfgContainer [2019-11-16 00:01:36,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:01:36,858 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:01:36,858 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:01:36,858 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:01:36,859 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:32" (3/4) ... [2019-11-16 00:01:36,861 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-16 00:01:36,916 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7eed51ad-d875-479e-b5a7-51d072a41407/bin/uautomizer/witness.graphml [2019-11-16 00:01:36,916 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:01:36,918 INFO L168 Benchmark]: Toolchain (without parser) took 5925.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 952.4 MB in the beginning and 983.9 MB in the end (delta: -31.5 MB). Peak memory consumption was 115.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:36,919 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:01:36,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:36,920 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.83 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:36,920 INFO L168 Benchmark]: Boogie Preprocessor took 57.02 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:36,921 INFO L168 Benchmark]: RCFGBuilder took 1357.60 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: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:36,921 INFO L168 Benchmark]: TraceAbstraction took 3999.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 983.9 MB in the end (delta: 113.0 MB). Peak memory consumption was 113.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:01:36,922 INFO L168 Benchmark]: Witness Printer took 58.20 ms. Allocated memory is still 1.2 GB. Free memory is still 983.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:01:36,924 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 392.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.83 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.02 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1357.60 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: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3999.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 983.9 MB in the end (delta: 113.0 MB). Peak memory consumption was 113.0 MB. Max. memory is 11.5 GB. * Witness Printer took 58.20 ms. Allocated memory is still 1.2 GB. Free memory is still 983.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 122]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] static const double one_modf = 1.0; VAL [one_modf=1.0] [L116] double x = 0.0 / 0.0; [L117] double iptr; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [one_modf=1.0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=1.0] [L29] COND FALSE !(j0 < 20) VAL [one_modf=1.0] [L65] COND TRUE j0 > 51 [L66] __uint32_t high; [L67] *iptr = x * one_modf VAL [one_modf=1.0] [L69] ieee_double_shape_type gh_u; [L70] gh_u.value = (x) [L71] EXPR gh_u.parts.msw [L71] (high) = gh_u.parts.msw [L74] ieee_double_shape_type iw_u; [L75] iw_u.parts.msw = (high & 0x80000000) [L76] iw_u.parts.lsw = (0) [L77] EXPR iw_u.value [L77] (x) = iw_u.value [L79] return x; VAL [one_modf=1.0] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) [L15] return x != x; VAL [one_modf=1.0] [L121] isnan_double(iptr) && !isnan_double(res) [L15] return x != x; VAL [one_modf=1.0] [L121] isnan_double(iptr) && !isnan_double(res) VAL [one_modf=1.0] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [one_modf=1.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Result: UNSAFE, OverallTime: 3.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 82 SDtfs, 50 SDslu, 35 SDs, 0 SdLazy, 18 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 4 QuantifiedInterpolants, 2694 SizeOfPredicates, 6 NumberOfNonLiveVariables, 168 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 incorrect! Received shutdown request...