./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c -s /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/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 36fce2ac9d239f0bf9286aa317af7b50704c65b6 ..................................................................................................................................................................................................................................................................................................................................... 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_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c -s /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/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 36fce2ac9d239f0bf9286aa317af7b50704c65b6 ............................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-678e011 [2019-11-19 23:37:24,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:37:24,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:37:24,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:37:24,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:37:24,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:37:24,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:37:24,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:37:24,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:37:24,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:37:24,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:37:24,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:37:24,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:37:24,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:37:24,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:37:24,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:37:24,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:37:24,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:37:24,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:37:24,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:37:24,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:37:24,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:37:24,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:37:24,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:37:24,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:37:24,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:37:24,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:37:24,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:37:24,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:37:24,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:37:24,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:37:24,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:37:24,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:37:24,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:37:24,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:37:24,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:37:24,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:37:24,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:37:24,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:37:24,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:37:24,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:37:24,964 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 23:37:24,977 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:37:24,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:37:24,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:37:24,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:37:24,979 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:37:24,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:37:24,979 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:37:24,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:37:24,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:37:24,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:37:24,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:37:24,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:37:24,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:37:24,980 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:37:24,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:37:24,981 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:37:24,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:37:24,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:37:24,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:37:24,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:37:24,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:37:24,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:37:24,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:37:24,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:37:24,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:37:24,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:37:24,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 23:37:24,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:37:24,984 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_39da1731-8140-4698-9222-60849dfecfb2/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 -> 36fce2ac9d239f0bf9286aa317af7b50704c65b6 [2019-11-19 23:37:25,134 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:37:25,149 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:37:25,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:37:25,157 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:37:25,158 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:37:25,158 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2019-11-19 23:37:25,242 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/data/c99a94784/1a3bb9cee303476e84ac1cb4f0e91ed0/FLAGd027ab0c7 [2019-11-19 23:37:25,744 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:37:25,745 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2019-11-19 23:37:25,754 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/data/c99a94784/1a3bb9cee303476e84ac1cb4f0e91ed0/FLAGd027ab0c7 [2019-11-19 23:37:26,039 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/data/c99a94784/1a3bb9cee303476e84ac1cb4f0e91ed0 [2019-11-19 23:37:26,046 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:37:26,047 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:37:26,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:37:26,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:37:26,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:37:26,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:37:26" (1/1) ... [2019-11-19 23:37:26,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d9c0857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:26, skipping insertion in model container [2019-11-19 23:37:26,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:37:26" (1/1) ... [2019-11-19 23:37:26,066 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:37:26,095 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:37:26,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:37:26,419 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:37:26,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:37:26,473 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:37:26,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:26 WrapperNode [2019-11-19 23:37:26,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:37:26,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:37:26,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:37:26,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:37:26,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:26" (1/1) ... [2019-11-19 23:37:26,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:26" (1/1) ... [2019-11-19 23:37:26,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:37:26,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:37:26,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:37:26,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:37:26,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:26" (1/1) ... [2019-11-19 23:37:26,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:26" (1/1) ... [2019-11-19 23:37:26,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:26" (1/1) ... [2019-11-19 23:37:26,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:26" (1/1) ... [2019-11-19 23:37:26,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:26" (1/1) ... [2019-11-19 23:37:26,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:26" (1/1) ... [2019-11-19 23:37:26,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:26" (1/1) ... [2019-11-19 23:37:26,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:37:26,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:37:26,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:37:26,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:37:26,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/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 [2019-11-19 23:37:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-19 23:37:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 23:37:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-19 23:37:26,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:37:26,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:37:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 23:37:26,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 23:37:26,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 23:37:27,109 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:37:27,109 INFO L285 CfgBuilder]: Removed 24 assume(true) statements. [2019-11-19 23:37:27,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:37:27 BoogieIcfgContainer [2019-11-19 23:37:27,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:37:27,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:37:27,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:37:27,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:37:27,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:37:26" (1/3) ... [2019-11-19 23:37:27,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fae212c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:37:27, skipping insertion in model container [2019-11-19 23:37:27,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:26" (2/3) ... [2019-11-19 23:37:27,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fae212c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:37:27, skipping insertion in model container [2019-11-19 23:37:27,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:37:27" (3/3) ... [2019-11-19 23:37:27,119 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2019-11-19 23:37:27,131 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:37:27,138 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 23:37:27,149 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 23:37:27,170 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:37:27,170 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:37:27,170 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:37:27,171 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:37:27,171 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:37:27,171 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:37:27,171 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:37:27,171 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:37:27,185 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-19 23:37:27,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-19 23:37:27,191 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:37:27,191 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:37:27,192 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:37:27,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:37:27,196 INFO L82 PathProgramCache]: Analyzing trace with hash -556426464, now seen corresponding path program 1 times [2019-11-19 23:37:27,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:37:27,203 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603679461] [2019-11-19 23:37:27,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:37:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:37:27,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:37:27,344 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603679461] [2019-11-19 23:37:27,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:37:27,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 23:37:27,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324569518] [2019-11-19 23:37:27,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 23:37:27,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:37:27,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 23:37:27,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 23:37:27,370 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-11-19 23:37:27,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:37:27,393 INFO L93 Difference]: Finished difference Result 66 states and 102 transitions. [2019-11-19 23:37:27,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 23:37:27,395 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-19 23:37:27,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:37:27,406 INFO L225 Difference]: With dead ends: 66 [2019-11-19 23:37:27,407 INFO L226 Difference]: Without dead ends: 31 [2019-11-19 23:37:27,410 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 [2019-11-19 23:37:27,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-19 23:37:27,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-19 23:37:27,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-19 23:37:27,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2019-11-19 23:37:27,450 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 13 [2019-11-19 23:37:27,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:37:27,451 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2019-11-19 23:37:27,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 23:37:27,451 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2019-11-19 23:37:27,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-19 23:37:27,452 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:37:27,452 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:37:27,453 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:37:27,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:37:27,453 INFO L82 PathProgramCache]: Analyzing trace with hash -56818241, now seen corresponding path program 1 times [2019-11-19 23:37:27,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:37:27,454 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492865252] [2019-11-19 23:37:27,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:37:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:37:27,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:37:27,562 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492865252] [2019-11-19 23:37:27,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:37:27,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 23:37:27,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945317177] [2019-11-19 23:37:27,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 23:37:27,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:37:27,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 23:37:27,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 23:37:27,566 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 3 states. [2019-11-19 23:37:27,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:37:27,606 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2019-11-19 23:37:27,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 23:37:27,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-19 23:37:27,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:37:27,608 INFO L225 Difference]: With dead ends: 34 [2019-11-19 23:37:27,608 INFO L226 Difference]: Without dead ends: 31 [2019-11-19 23:37:27,610 INFO L630 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 [2019-11-19 23:37:27,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-19 23:37:27,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-19 23:37:27,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-19 23:37:27,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2019-11-19 23:37:27,616 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 15 [2019-11-19 23:37:27,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:37:27,617 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2019-11-19 23:37:27,617 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 23:37:27,617 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2019-11-19 23:37:27,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-19 23:37:27,618 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:37:27,618 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:37:27,619 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:37:27,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:37:27,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1761490312, now seen corresponding path program 1 times [2019-11-19 23:37:27,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:37:27,620 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735415534] [2019-11-19 23:37:27,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:37:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:37:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:37:27,742 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:37:27,742 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 23:37:27,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:37:27 BoogieIcfgContainer [2019-11-19 23:37:27,794 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 23:37:27,795 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:37:27,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:37:27,795 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:37:27,796 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:37:27" (3/4) ... [2019-11-19 23:37:27,800 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 23:37:27,800 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:37:27,807 INFO L168 Benchmark]: Toolchain (without parser) took 1754.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -119.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-19 23:37:27,808 INFO L168 Benchmark]: CDTParser took 0.21 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. [2019-11-19 23:37:27,809 INFO L168 Benchmark]: CACSL2BoogieTranslator took 426.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -186.1 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-11-19 23:37:27,810 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.24 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. [2019-11-19 23:37:27,811 INFO L168 Benchmark]: Boogie Preprocessor took 39.59 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. [2019-11-19 23:37:27,812 INFO L168 Benchmark]: RCFGBuilder took 545.44 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: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-19 23:37:27,813 INFO L168 Benchmark]: TraceAbstraction took 682.79 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2019-11-19 23:37:27,815 INFO L168 Benchmark]: Witness Printer took 5.41 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. [2019-11-19 23:37:27,819 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 426.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -186.1 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.24 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. * Boogie Preprocessor took 39.59 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. * RCFGBuilder took 545.44 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: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 682.79 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.41 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 86]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 73, overapproximation of someBinaryArithmeticFLOAToperation at line 80, overapproximation of bitwiseAnd at line 26. Possible FailurePath: [L11] static const float one_modf = 1.0; VAL [one_modf=1] [L80] float x = 0.0f / 0.0f; [L81] float iptr; [L14] __int32_t i0, j0; [L15] __uint32_t i; VAL [one_modf=1] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [one_modf=1] [L22] COND TRUE j0 < 23 VAL [one_modf=1] [L23] COND TRUE j0 < 0 VAL [one_modf=1] [L25] ieee_float_shape_type sf_u; [L26] sf_u.word = (i0 & 0x80000000) [L27] EXPR sf_u.value [L27] (*iptr) = sf_u.value [L29] return x; VAL [one_modf=1] [L82] float res = modf_float(x, &iptr); [L85] EXPR \read(iptr) [L73] return x != x; VAL [one_modf=1] [L85] isnan_float(iptr) && !isnan_float(res) [L73] return x != x; VAL [one_modf=1] [L85] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1] [L85] COND TRUE isnan_float(iptr) && !isnan_float(res) [L86] __VERIFIER_error() VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 71 SDtfs, 0 SDslu, 28 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=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s 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 0.1.24-678e011 [2019-11-19 23:37:29,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:37:29,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:37:29,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-19 23:37:30,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:37:30,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:37:30,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:37:30,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:37:30,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:37:30,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:37:30,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:37:30,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:37:30,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:37:30,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:37:30,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:37:30,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:37:30,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-19 23:37:30,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:37:30,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:37:30,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:37:30,054 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:37:30,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:37:30,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:37:30,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:37:30,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:37:30,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:37:30,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:37:30,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:37:30,061 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 23:37:30,091 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:37:30,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:37:30,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:37:30,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:37:30,105 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:37:30,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:37:30,106 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:37:30,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:37:30,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:37:30,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:37:30,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:37:30,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:37:30,108 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 23:37:30,108 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 23:37:30,108 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:37:30,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:37:30,109 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:37:30,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:37:30,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:37:30,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:37:30,110 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:37:30,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:37:30,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:37:30,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:37:30,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:37:30,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:37:30,112 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 23:37:30,112 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 23:37:30,113 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:37:30,114 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 23:37:30,114 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_39da1731-8140-4698-9222-60849dfecfb2/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 -> 36fce2ac9d239f0bf9286aa317af7b50704c65b6 [2019-11-19 23:37:30,390 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:37:30,401 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:37:30,404 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:37:30,405 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:37:30,406 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:37:30,406 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2019-11-19 23:37:30,456 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/data/d04f91ccb/c8dbbd31881a483fa9573eb9e7a93aea/FLAG339eaa2b9 [2019-11-19 23:37:30,794 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:37:30,795 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2019-11-19 23:37:30,801 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/data/d04f91ccb/c8dbbd31881a483fa9573eb9e7a93aea/FLAG339eaa2b9 [2019-11-19 23:37:31,173 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/data/d04f91ccb/c8dbbd31881a483fa9573eb9e7a93aea [2019-11-19 23:37:31,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:37:31,176 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:37:31,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:37:31,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:37:31,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:37:31,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:37:31" (1/1) ... [2019-11-19 23:37:31,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@376a4a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:31, skipping insertion in model container [2019-11-19 23:37:31,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:37:31" (1/1) ... [2019-11-19 23:37:31,197 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:37:31,219 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:37:31,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:37:31,479 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:37:31,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:37:31,551 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:37:31,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:31 WrapperNode [2019-11-19 23:37:31,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:37:31,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:37:31,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:37:31,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:37:31,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:31" (1/1) ... [2019-11-19 23:37:31,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:31" (1/1) ... [2019-11-19 23:37:31,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:37:31,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:37:31,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:37:31,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:37:31,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:31" (1/1) ... [2019-11-19 23:37:31,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:31" (1/1) ... [2019-11-19 23:37:31,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:31" (1/1) ... [2019-11-19 23:37:31,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:31" (1/1) ... [2019-11-19 23:37:31,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:31" (1/1) ... [2019-11-19 23:37:31,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:31" (1/1) ... [2019-11-19 23:37:31,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:31" (1/1) ... [2019-11-19 23:37:31,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:37:31,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:37:31,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:37:31,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:37:31,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/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 [2019-11-19 23:37:31,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-19 23:37:31,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:37:31,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:37:31,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-19 23:37:31,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 23:37:31,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-19 23:37:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-19 23:37:31,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 23:37:32,298 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:37:32,298 INFO L285 CfgBuilder]: Removed 24 assume(true) statements. [2019-11-19 23:37:32,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:37:32 BoogieIcfgContainer [2019-11-19 23:37:32,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:37:32,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:37:32,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:37:32,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:37:32,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:37:31" (1/3) ... [2019-11-19 23:37:32,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66231465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:37:32, skipping insertion in model container [2019-11-19 23:37:32,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:37:31" (2/3) ... [2019-11-19 23:37:32,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66231465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:37:32, skipping insertion in model container [2019-11-19 23:37:32,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:37:32" (3/3) ... [2019-11-19 23:37:32,307 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2019-11-19 23:37:32,315 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:37:32,324 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 23:37:32,335 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 23:37:32,361 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:37:32,361 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:37:32,361 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:37:32,362 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:37:32,362 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:37:32,362 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:37:32,362 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:37:32,362 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:37:32,375 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-19 23:37:32,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-19 23:37:32,382 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:37:32,383 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:37:32,383 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:37:32,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:37:32,389 INFO L82 PathProgramCache]: Analyzing trace with hash -556426464, now seen corresponding path program 1 times [2019-11-19 23:37:32,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 23:37:32,400 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242466026] [2019-11-19 23:37:32,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/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 [2019-11-19 23:37:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:37:32,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-19 23:37:32,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:37:32,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:37:32,568 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 23:37:32,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:37:32,573 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242466026] [2019-11-19 23:37:32,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:37:32,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-19 23:37:32,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514429602] [2019-11-19 23:37:32,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 23:37:32,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 23:37:32,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 23:37:32,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 23:37:32,594 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-11-19 23:37:32,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:37:32,613 INFO L93 Difference]: Finished difference Result 66 states and 102 transitions. [2019-11-19 23:37:32,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 23:37:32,615 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-19 23:37:32,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:37:32,624 INFO L225 Difference]: With dead ends: 66 [2019-11-19 23:37:32,624 INFO L226 Difference]: Without dead ends: 31 [2019-11-19 23:37:32,627 INFO L630 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 [2019-11-19 23:37:32,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-19 23:37:32,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-19 23:37:32,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-19 23:37:32,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2019-11-19 23:37:32,655 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 13 [2019-11-19 23:37:32,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:37:32,656 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2019-11-19 23:37:32,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 23:37:32,656 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2019-11-19 23:37:32,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-19 23:37:32,657 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:37:32,657 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:37:32,871 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-19 23:37:32,871 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:37:32,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:37:32,871 INFO L82 PathProgramCache]: Analyzing trace with hash -56818241, now seen corresponding path program 1 times [2019-11-19 23:37:32,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 23:37:32,872 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1062498533] [2019-11-19 23:37:32,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/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 [2019-11-19 23:37:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:37:32,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-19 23:37:32,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:37:33,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:37:33,029 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 23:37:33,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:37:33,132 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1062498533] [2019-11-19 23:37:33,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:37:33,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-19 23:37:33,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126106160] [2019-11-19 23:37:33,135 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 23:37:33,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 23:37:33,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 23:37:33,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-19 23:37:33,136 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 8 states. [2019-11-19 23:37:33,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:37:33,368 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2019-11-19 23:37:33,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 23:37:33,369 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-19 23:37:33,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:37:33,370 INFO L225 Difference]: With dead ends: 38 [2019-11-19 23:37:33,370 INFO L226 Difference]: Without dead ends: 18 [2019-11-19 23:37:33,371 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-11-19 23:37:33,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-19 23:37:33,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-19 23:37:33,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-19 23:37:33,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-11-19 23:37:33,376 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2019-11-19 23:37:33,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:37:33,377 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-11-19 23:37:33,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 23:37:33,377 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-11-19 23:37:33,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-19 23:37:33,378 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:37:33,378 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:37:33,592 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-19 23:37:33,592 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:37:33,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:37:33,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1951048762, now seen corresponding path program 1 times [2019-11-19 23:37:33,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 23:37:33,594 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [427692477] [2019-11-19 23:37:33,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/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 [2019-11-19 23:37:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:37:33,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 23:37:33,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:37:33,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:37:33,761 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 23:37:33,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:37:33,765 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [427692477] [2019-11-19 23:37:33,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:37:33,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-19 23:37:33,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815017891] [2019-11-19 23:37:33,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 23:37:33,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 23:37:33,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 23:37:33,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 23:37:33,775 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 3 states. [2019-11-19 23:37:33,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:37:33,797 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2019-11-19 23:37:33,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 23:37:33,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-19 23:37:33,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:37:33,798 INFO L225 Difference]: With dead ends: 21 [2019-11-19 23:37:33,798 INFO L226 Difference]: Without dead ends: 18 [2019-11-19 23:37:33,798 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 23:37:33,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-19 23:37:33,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-19 23:37:33,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-19 23:37:33,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-11-19 23:37:33,801 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-11-19 23:37:33,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:37:33,802 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-11-19 23:37:33,802 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 23:37:33,802 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-11-19 23:37:33,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-19 23:37:33,803 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:37:33,803 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:37:34,005 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-19 23:37:34,006 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:37:34,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:37:34,006 INFO L82 PathProgramCache]: Analyzing trace with hash 352844637, now seen corresponding path program 1 times [2019-11-19 23:37:34,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 23:37:34,007 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94748269] [2019-11-19 23:37:34,007 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/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 [2019-11-19 23:37:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:37:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:37:34,456 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-19 23:37:34,457 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 23:37:34,657 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-19 23:37:34,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:37:34 BoogieIcfgContainer [2019-11-19 23:37:34,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 23:37:34,693 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:37:34,693 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:37:34,693 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:37:34,693 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:37:32" (3/4) ... [2019-11-19 23:37:34,701 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 23:37:34,767 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_39da1731-8140-4698-9222-60849dfecfb2/bin/uautomizer/witness.graphml [2019-11-19 23:37:34,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:37:34,769 INFO L168 Benchmark]: Toolchain (without parser) took 3592.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -44.7 MB). Peak memory consumption was 107.3 MB. Max. memory is 11.5 GB. [2019-11-19 23:37:34,770 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:37:34,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.61 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 944.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-11-19 23:37:34,771 INFO L168 Benchmark]: Boogie Procedure Inliner took 144.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-19 23:37:34,771 INFO L168 Benchmark]: Boogie Preprocessor took 50.31 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. [2019-11-19 23:37:34,772 INFO L168 Benchmark]: RCFGBuilder took 552.21 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: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2019-11-19 23:37:34,773 INFO L168 Benchmark]: TraceAbstraction took 2391.86 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: 109.5 MB). Peak memory consumption was 109.5 MB. Max. memory is 11.5 GB. [2019-11-19 23:37:34,773 INFO L168 Benchmark]: Witness Printer took 74.60 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. [2019-11-19 23:37:34,776 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 370.61 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 944.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 144.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.31 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 552.21 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: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2391.86 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: 109.5 MB). Peak memory consumption was 109.5 MB. Max. memory is 11.5 GB. * Witness Printer took 74.60 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: - CounterExampleResult [Line: 86]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] static const float one_modf = 1.0; VAL [one_modf=1.0] [L80] float x = 0.0f / 0.0f; [L81] float iptr; [L14] __int32_t i0, j0; [L15] __uint32_t i; VAL [one_modf=1.0] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [one_modf=1.0] [L22] COND FALSE !(j0 < 23) [L56] __uint32_t ix; [L57] *iptr = x * one_modf VAL [one_modf=1.0] [L59] ieee_float_shape_type gf_u; [L60] gf_u.value = (x) [L61] EXPR gf_u.word [L61] (ix) = gf_u.word [L64] ieee_float_shape_type sf_u; [L65] sf_u.word = (ix & 0x80000000) [L66] EXPR sf_u.value [L66] (x) = sf_u.value [L68] return x; VAL [one_modf=1.0] [L82] float res = modf_float(x, &iptr); [L85] EXPR \read(iptr) [L73] return x != x; VAL [one_modf=1.0] [L85] isnan_float(iptr) && !isnan_float(res) [L73] return x != x; VAL [one_modf=1.0] [L85] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1.0] [L85] COND TRUE isnan_float(iptr) && !isnan_float(res) [L86] __VERIFIER_error() VAL [one_modf=1.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: UNSAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 46 SDslu, 34 SDs, 0 SdLazy, 17 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 2 QuantifiedInterpolants, 2434 SizeOfPredicates, 6 NumberOfNonLiveVariables, 156 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...