./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1230.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1230.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/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 b865bb4da04412be07ba7e2426d2224bb04a2953 ............................................................................................................................................................................................................................................................................................................................................................. 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_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1230.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/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 b865bb4da04412be07ba7e2426d2224bb04a2953 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:53:52,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:53:52,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:53:52,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:53:52,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:53:52,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:53:52,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:53:52,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:53:52,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:53:52,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:53:52,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:53:52,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:53:52,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:53:52,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:53:52,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:53:52,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:53:52,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:53:52,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:53:52,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:53:52,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:53:52,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:53:52,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:53:52,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:53:52,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:53:52,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:53:52,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:53:52,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:53:52,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:53:52,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:53:52,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:53:52,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:53:52,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:53:52,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:53:52,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:53:52,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:53:52,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:53:52,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:53:52,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:53:52,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:53:52,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:53:52,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:53:52,943 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:53:52,955 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:53:52,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:53:52,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:53:52,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:53:52,957 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:53:52,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:53:52,957 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:53:52,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:53:52,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:53:52,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:53:52,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:53:52,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:53:52,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:53:52,958 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:53:52,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:53:52,958 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:53:52,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:53:52,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:53:52,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:53:52,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:53:52,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:53:52,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:53:52,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:53:52,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:53:52,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:53:52,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:53:52,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:53:52,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:53:52,961 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_a1149b41-d640-4a1d-9ecc-bb52c702ad74/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 -> b865bb4da04412be07ba7e2426d2224bb04a2953 [2019-11-25 08:53:53,089 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:53:53,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:53:53,100 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:53:53,101 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:53:53,101 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:53:53,102 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1230.c [2019-11-25 08:53:53,168 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/data/20a22b605/cb3f9a9589f44669902ce681b79c0d7e/FLAG6938b4955 [2019-11-25 08:53:53,576 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:53:53,577 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/sv-benchmarks/c/float-newlib/double_req_bl_1230.c [2019-11-25 08:53:53,583 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/data/20a22b605/cb3f9a9589f44669902ce681b79c0d7e/FLAG6938b4955 [2019-11-25 08:53:53,599 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/data/20a22b605/cb3f9a9589f44669902ce681b79c0d7e [2019-11-25 08:53:53,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:53:53,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:53:53,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:53,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:53:53,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:53:53,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb41984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53, skipping insertion in model container [2019-11-25 08:53:53,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:53:53,636 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:53:53,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:53,858 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:53:53,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:53,910 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:53:53,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53 WrapperNode [2019-11-25 08:53:53,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:53,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:53,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:53:53,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:53:53,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:53,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:53:53,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:53:53,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:53:53,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:53,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... [2019-11-25 08:53:54,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:53:54,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:53:54,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:53:54,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:53:54,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/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 [2019-11-25 08:53:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:53:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-25 08:53:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:53:54,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:53:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:53:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:53:54,409 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:53:54,410 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-25 08:53:54,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:54 BoogieIcfgContainer [2019-11-25 08:53:54,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:53:54,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:53:54,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:53:54,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:53:54,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:53:53" (1/3) ... [2019-11-25 08:53:54,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bce426b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:54, skipping insertion in model container [2019-11-25 08:53:54,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:53" (2/3) ... [2019-11-25 08:53:54,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bce426b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:54, skipping insertion in model container [2019-11-25 08:53:54,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:54" (3/3) ... [2019-11-25 08:53:54,417 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1230.c [2019-11-25 08:53:54,425 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:53:54,431 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:53:54,440 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:53:54,460 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:53:54,460 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:53:54,460 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:53:54,460 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:53:54,461 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:53:54,461 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:53:54,461 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:53:54,461 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:53:54,474 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-25 08:53:54,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:53:54,479 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:54,480 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:54,480 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:54,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:54,486 INFO L82 PathProgramCache]: Analyzing trace with hash -958093107, now seen corresponding path program 1 times [2019-11-25 08:53:54,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:54,494 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266694339] [2019-11-25 08:53:54,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:54,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:54,587 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266694339] [2019-11-25 08:53:54,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:54,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:53:54,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216995197] [2019-11-25 08:53:54,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:53:54,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:54,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:53:54,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:53:54,603 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-11-25 08:53:54,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:54,617 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2019-11-25 08:53:54,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:53:54,618 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-25 08:53:54,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:54,627 INFO L225 Difference]: With dead ends: 54 [2019-11-25 08:53:54,627 INFO L226 Difference]: Without dead ends: 25 [2019-11-25 08:53:54,630 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 [2019-11-25 08:53:54,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-25 08:53:54,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-25 08:53:54,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-25 08:53:54,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2019-11-25 08:53:54,661 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 10 [2019-11-25 08:53:54,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:54,661 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-11-25 08:53:54,661 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:53:54,661 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2019-11-25 08:53:54,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:53:54,662 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:54,662 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:54,662 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:54,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:54,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1001566992, now seen corresponding path program 1 times [2019-11-25 08:53:54,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:54,663 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230916521] [2019-11-25 08:53:54,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:54,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:54,737 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230916521] [2019-11-25 08:53:54,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:54,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:53:54,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76809626] [2019-11-25 08:53:54,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:53:54,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:54,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:53:54,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:53:54,740 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand 4 states. [2019-11-25 08:53:54,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:54,820 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2019-11-25 08:53:54,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:53:54,820 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-25 08:53:54,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:54,821 INFO L225 Difference]: With dead ends: 41 [2019-11-25 08:53:54,821 INFO L226 Difference]: Without dead ends: 36 [2019-11-25 08:53:54,822 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:53:54,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-25 08:53:54,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2019-11-25 08:53:54,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-25 08:53:54,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-11-25 08:53:54,827 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2019-11-25 08:53:54,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:54,827 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-11-25 08:53:54,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:53:54,828 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-11-25 08:53:54,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-25 08:53:54,828 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:54,828 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:54,829 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:54,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:54,829 INFO L82 PathProgramCache]: Analyzing trace with hash -555778251, now seen corresponding path program 1 times [2019-11-25 08:53:54,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:54,829 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82102871] [2019-11-25 08:53:54,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:54,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:54,898 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82102871] [2019-11-25 08:53:54,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:54,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:53:54,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494051287] [2019-11-25 08:53:54,899 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:53:54,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:53:54,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:53:54,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:53:54,900 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 4 states. [2019-11-25 08:53:54,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:54,942 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2019-11-25 08:53:54,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:53:54,942 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-25 08:53:54,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:54,943 INFO L225 Difference]: With dead ends: 43 [2019-11-25 08:53:54,944 INFO L226 Difference]: Without dead ends: 38 [2019-11-25 08:53:54,944 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:53:54,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-25 08:53:54,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2019-11-25 08:53:54,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-25 08:53:54,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-11-25 08:53:54,949 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 14 [2019-11-25 08:53:54,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:54,950 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-11-25 08:53:54,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:53:54,950 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-11-25 08:53:54,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-25 08:53:54,951 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:54,951 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:54,951 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:54,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:54,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1219229111, now seen corresponding path program 1 times [2019-11-25 08:53:54,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:53:54,952 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738985899] [2019-11-25 08:53:54,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:53:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:53:55,027 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:53:55,028 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:53:55,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:53:55 BoogieIcfgContainer [2019-11-25 08:53:55,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:53:55,050 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:53:55,050 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:53:55,051 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:53:55,051 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:54" (3/4) ... [2019-11-25 08:53:55,054 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:53:55,054 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:53:55,056 INFO L168 Benchmark]: Toolchain (without parser) took 1452.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 947.4 MB in the beginning and 1.1 GB in the end (delta: -115.0 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:55,057 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:53:55,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 947.4 MB in the beginning and 1.1 GB in the end (delta: -192.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:55,058 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.11 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. [2019-11-25 08:53:55,059 INFO L168 Benchmark]: Boogie Preprocessor took 52.54 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. [2019-11-25 08:53:55,059 INFO L168 Benchmark]: RCFGBuilder took 404.48 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:55,060 INFO L168 Benchmark]: TraceAbstraction took 638.20 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: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:53:55,061 INFO L168 Benchmark]: Witness Printer took 4.20 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. [2019-11-25 08:53:55,064 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 305.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 947.4 MB in the beginning and 1.1 GB in the end (delta: -192.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.11 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 52.54 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 404.48 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: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 638.20 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: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.20 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: 66]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 61. Possible FailurePath: [L61] double x = 0.0 / 0.0; [L62] double y = 0.0 / 0.0; [L18] __uint32_t msw, lsw; [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L27-L28] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L30-L31] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L33-L34] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L37-L38] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L41] return 0; [L45] COND TRUE __fpclassify_double(x) == 0 [L46] return y; [L63] double res = fmin_double(x, y); [L16] return x != x; [L65] COND TRUE !isnan_double(res) [L66] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 110 SDtfs, 22 SDslu, 110 SDs, 0 SdLazy, 30 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-25 08:53:56,819 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-11-25 08:53:56,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:53:56,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:53:56,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:53:56,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:53:56,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:53:56,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:53:56,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:53:56,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:53:56,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:53:56,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:53:56,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:53:56,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:53:56,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:53:56,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:53:56,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:53:56,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:53:56,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:53:56,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:53:56,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:53:56,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:53:56,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:53:56,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:53:56,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:53:56,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:53:56,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:53:56,888 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:53:56,888 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:53:56,889 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:53:56,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:53:56,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:53:56,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:53:56,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:53:56,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:53:56,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:53:56,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:53:56,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:53:56,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:53:56,895 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 08:53:56,920 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:53:56,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:53:56,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:53:56,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:53:56,924 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:53:56,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:53:56,924 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:53:56,924 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:53:56,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:53:56,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:53:56,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:53:56,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:53:56,926 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:53:56,926 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:53:56,927 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:53:56,927 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:53:56,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:53:56,928 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:53:56,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:53:56,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:53:56,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:53:56,929 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:53:56,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:53:56,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:53:56,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:53:56,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:53:56,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:53:56,930 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:53:56,930 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:53:56,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:53:56,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:53:56,931 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_a1149b41-d640-4a1d-9ecc-bb52c702ad74/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 -> b865bb4da04412be07ba7e2426d2224bb04a2953 [2019-11-25 08:53:57,182 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:53:57,192 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:53:57,195 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:53:57,197 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:53:57,197 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:53:57,198 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1230.c [2019-11-25 08:53:57,254 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/data/dae9da569/60208c81cdb64986b68511295bf0496c/FLAGb303e3bc0 [2019-11-25 08:53:57,651 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:53:57,651 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/sv-benchmarks/c/float-newlib/double_req_bl_1230.c [2019-11-25 08:53:57,657 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/data/dae9da569/60208c81cdb64986b68511295bf0496c/FLAGb303e3bc0 [2019-11-25 08:53:57,668 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/data/dae9da569/60208c81cdb64986b68511295bf0496c [2019-11-25 08:53:57,673 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:53:57,674 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:53:57,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:57,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:53:57,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:53:57,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:57" (1/1) ... [2019-11-25 08:53:57,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15762922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:57, skipping insertion in model container [2019-11-25 08:53:57,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:53:57" (1/1) ... [2019-11-25 08:53:57,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:53:57,714 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:53:57,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:57,916 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:53:57,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:53:57,964 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:53:57,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:57 WrapperNode [2019-11-25 08:53:57,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:53:57,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:57,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:53:57,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:53:58,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:57" (1/1) ... [2019-11-25 08:53:58,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:57" (1/1) ... [2019-11-25 08:53:58,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:53:58,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:53:58,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:53:58,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:53:58,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:57" (1/1) ... [2019-11-25 08:53:58,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:57" (1/1) ... [2019-11-25 08:53:58,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:57" (1/1) ... [2019-11-25 08:53:58,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:57" (1/1) ... [2019-11-25 08:53:58,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:57" (1/1) ... [2019-11-25 08:53:58,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:57" (1/1) ... [2019-11-25 08:53:58,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:57" (1/1) ... [2019-11-25 08:53:58,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:53:58,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:53:58,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:53:58,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:53:58,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/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 [2019-11-25 08:53:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-25 08:53:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:53:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:53:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:53:58,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:53:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:53:58,613 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:53:58,613 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-25 08:53:58,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:58 BoogieIcfgContainer [2019-11-25 08:53:58,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:53:58,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:53:58,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:53:58,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:53:58,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:53:57" (1/3) ... [2019-11-25 08:53:58,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77398211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:58, skipping insertion in model container [2019-11-25 08:53:58,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:53:57" (2/3) ... [2019-11-25 08:53:58,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77398211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:53:58, skipping insertion in model container [2019-11-25 08:53:58,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:58" (3/3) ... [2019-11-25 08:53:58,622 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1230.c [2019-11-25 08:53:58,629 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:53:58,634 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:53:58,644 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:53:58,669 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:53:58,669 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:53:58,669 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:53:58,669 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:53:58,669 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:53:58,670 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:53:58,670 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:53:58,670 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:53:58,683 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-25 08:53:58,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:53:58,688 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:58,688 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:58,689 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:58,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:58,692 INFO L82 PathProgramCache]: Analyzing trace with hash -958093107, now seen corresponding path program 1 times [2019-11-25 08:53:58,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:53:58,700 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877674332] [2019-11-25 08:53:58,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/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 [2019-11-25 08:53:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:58,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-25 08:53:58,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:58,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:58,821 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:53:58,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:58,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877674332] [2019-11-25 08:53:58,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:58,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-25 08:53:58,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843229002] [2019-11-25 08:53:58,829 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:53:58,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:53:58,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:53:58,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:53:58,840 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-11-25 08:53:58,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:58,854 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2019-11-25 08:53:58,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:53:58,855 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-25 08:53:58,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:58,864 INFO L225 Difference]: With dead ends: 54 [2019-11-25 08:53:58,864 INFO L226 Difference]: Without dead ends: 25 [2019-11-25 08:53:58,867 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:53:58,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-25 08:53:58,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-25 08:53:58,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-25 08:53:58,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2019-11-25 08:53:58,896 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 10 [2019-11-25 08:53:58,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:58,896 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-11-25 08:53:58,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:53:58,897 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2019-11-25 08:53:58,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:53:58,898 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:58,898 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:59,109 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-25 08:53:59,109 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:59,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:59,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1001566992, now seen corresponding path program 1 times [2019-11-25 08:53:59,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:53:59,112 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021463764] [2019-11-25 08:53:59,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/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 [2019-11-25 08:53:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:59,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-25 08:53:59,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:59,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:59,271 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:53:59,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:59,306 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021463764] [2019-11-25 08:53:59,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:59,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-25 08:53:59,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363926157] [2019-11-25 08:53:59,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:53:59,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:53:59,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:53:59,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:53:59,309 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand 6 states. [2019-11-25 08:53:59,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:53:59,433 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2019-11-25 08:53:59,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:53:59,435 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-11-25 08:53:59,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:53:59,436 INFO L225 Difference]: With dead ends: 52 [2019-11-25 08:53:59,436 INFO L226 Difference]: Without dead ends: 47 [2019-11-25 08:53:59,437 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:53:59,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-25 08:53:59,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2019-11-25 08:53:59,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-25 08:53:59,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-11-25 08:53:59,447 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2019-11-25 08:53:59,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:53:59,447 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-11-25 08:53:59,447 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:53:59,448 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-11-25 08:53:59,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-25 08:53:59,448 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:53:59,449 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:53:59,662 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-25 08:53:59,663 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:53:59,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:53:59,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1219229111, now seen corresponding path program 1 times [2019-11-25 08:53:59,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:53:59,667 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1748620384] [2019-11-25 08:53:59,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/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 [2019-11-25 08:53:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:53:59,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-25 08:53:59,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:53:59,822 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:53:59,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:59,880 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:53:59,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:53:59,982 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1748620384] [2019-11-25 08:53:59,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:53:59,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-25 08:53:59,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013186230] [2019-11-25 08:53:59,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-25 08:53:59,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:53:59,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-25 08:53:59,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:53:59,985 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 10 states. [2019-11-25 08:54:00,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:00,315 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2019-11-25 08:54:00,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:54:00,316 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2019-11-25 08:54:00,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:00,317 INFO L225 Difference]: With dead ends: 36 [2019-11-25 08:54:00,317 INFO L226 Difference]: Without dead ends: 27 [2019-11-25 08:54:00,317 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2019-11-25 08:54:00,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-25 08:54:00,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2019-11-25 08:54:00,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-25 08:54:00,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2019-11-25 08:54:00,322 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 14 [2019-11-25 08:54:00,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:00,322 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2019-11-25 08:54:00,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-25 08:54:00,323 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2019-11-25 08:54:00,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-25 08:54:00,324 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:00,324 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:00,542 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-25 08:54:00,542 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:00,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:00,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1012428811, now seen corresponding path program 1 times [2019-11-25 08:54:00,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:00,544 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296782485] [2019-11-25 08:54:00,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/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 [2019-11-25 08:54:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:00,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-25 08:54:00,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:00,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:00,686 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:00,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:00,709 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296782485] [2019-11-25 08:54:00,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:00,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-25 08:54:00,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631570861] [2019-11-25 08:54:00,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:54:00,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:00,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:54:00,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:54:00,711 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand 6 states. [2019-11-25 08:54:00,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:00,821 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2019-11-25 08:54:00,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:54:00,823 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-25 08:54:00,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:00,824 INFO L225 Difference]: With dead ends: 52 [2019-11-25 08:54:00,824 INFO L226 Difference]: Without dead ends: 47 [2019-11-25 08:54:00,825 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:54:00,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-25 08:54:00,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2019-11-25 08:54:00,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-25 08:54:00,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2019-11-25 08:54:00,830 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 16 [2019-11-25 08:54:00,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:00,830 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-11-25 08:54:00,831 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:54:00,831 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2019-11-25 08:54:00,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-25 08:54:00,832 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:00,832 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:01,033 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-25 08:54:01,033 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:01,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:01,034 INFO L82 PathProgramCache]: Analyzing trace with hash -356841937, now seen corresponding path program 1 times [2019-11-25 08:54:01,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:01,036 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388797042] [2019-11-25 08:54:01,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-25 08:54:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:01,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-25 08:54:01,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:01,224 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:54:01,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:01,271 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:01,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:01,425 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388797042] [2019-11-25 08:54:01,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:01,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2019-11-25 08:54:01,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11935927] [2019-11-25 08:54:01,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-25 08:54:01,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:01,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-25 08:54:01,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:54:01,427 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand 12 states. [2019-11-25 08:54:01,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:01,836 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2019-11-25 08:54:01,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:54:01,836 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 18 [2019-11-25 08:54:01,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:01,837 INFO L225 Difference]: With dead ends: 32 [2019-11-25 08:54:01,837 INFO L226 Difference]: Without dead ends: 23 [2019-11-25 08:54:01,838 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2019-11-25 08:54:01,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-25 08:54:01,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-25 08:54:01,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-25 08:54:01,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-11-25 08:54:01,841 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 18 [2019-11-25 08:54:01,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:01,841 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-11-25 08:54:01,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-25 08:54:01,842 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-11-25 08:54:01,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-25 08:54:01,844 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:01,844 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:02,045 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-25 08:54:02,045 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:02,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:02,046 INFO L82 PathProgramCache]: Analyzing trace with hash -208376157, now seen corresponding path program 1 times [2019-11-25 08:54:02,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:02,047 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554827871] [2019-11-25 08:54:02,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-11-25 08:54:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:02,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-25 08:54:02,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:02,239 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:54:02,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:02,281 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:02,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:54:02,363 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554827871] [2019-11-25 08:54:02,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:02,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-25 08:54:02,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923575719] [2019-11-25 08:54:02,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-25 08:54:02,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:02,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-25 08:54:02,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:54:02,365 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 10 states. [2019-11-25 08:54:02,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:02,573 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2019-11-25 08:54:02,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:54:02,573 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2019-11-25 08:54:02,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:02,573 INFO L225 Difference]: With dead ends: 23 [2019-11-25 08:54:02,573 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:54:02,574 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2019-11-25 08:54:02,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:54:02,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:54:02,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:54:02,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:54:02,574 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-11-25 08:54:02,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:02,575 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:54:02,575 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-25 08:54:02,575 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:54:02,575 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:54:02,775 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-11-25 08:54:02,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:54:03,145 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 68) no Hoare annotation was computed. [2019-11-25 08:54:03,146 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-25 08:54:03,146 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:54:03,146 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:54:03,146 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 66) no Hoare annotation was computed. [2019-11-25 08:54:03,146 INFO L444 ceAbstractionStarter]: For program point L20-1(lines 20 25) no Hoare annotation was computed. [2019-11-25 08:54:03,146 INFO L440 ceAbstractionStarter]: At program point L20-2(lines 20 25) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_fmin_double_~y ULTIMATE.start_fmin_double_~y)) (not (fp.eq ULTIMATE.start_fmin_double_~x ULTIMATE.start_fmin_double_~x))) [2019-11-25 08:54:03,146 INFO L444 ceAbstractionStarter]: For program point L20-3(lines 17 42) no Hoare annotation was computed. [2019-11-25 08:54:03,146 INFO L440 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_fmin_double_~y (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (not (fp.eq |ULTIMATE.start_fmin_double_#res| |ULTIMATE.start_fmin_double_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2019-11-25 08:54:03,147 INFO L444 ceAbstractionStarter]: For program point L20-5(lines 20 25) no Hoare annotation was computed. [2019-11-25 08:54:03,147 INFO L440 ceAbstractionStarter]: At program point L20-6(lines 20 25) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_fmin_double_~y ULTIMATE.start_fmin_double_~y)) (not (fp.eq ULTIMATE.start_fmin_double_~x ULTIMATE.start_fmin_double_~x))) [2019-11-25 08:54:03,147 INFO L444 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-11-25 08:54:03,147 INFO L444 ceAbstractionStarter]: For program point L20-7(lines 17 42) no Hoare annotation was computed. [2019-11-25 08:54:03,147 INFO L440 ceAbstractionStarter]: At program point L41(lines 17 42) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_fmin_double_~y ULTIMATE.start_fmin_double_~y)) (not (fp.eq ULTIMATE.start_fmin_double_~x ULTIMATE.start_fmin_double_~x))) [2019-11-25 08:54:03,147 INFO L440 ceAbstractionStarter]: At program point L41-1(lines 17 42) the Hoare annotation is: (let ((.cse0 (not (fp.eq ULTIMATE.start_fmin_double_~y ULTIMATE.start_fmin_double_~y)))) (or (and .cse0 (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_double_#res|))) (and .cse0 (not (fp.eq ULTIMATE.start_fmin_double_~x ULTIMATE.start_fmin_double_~x))))) [2019-11-25 08:54:03,147 INFO L447 ceAbstractionStarter]: At program point L70(lines 53 71) the Hoare annotation is: true [2019-11-25 08:54:03,147 INFO L444 ceAbstractionStarter]: For program point L37(lines 37 41) no Hoare annotation was computed. [2019-11-25 08:54:03,147 INFO L444 ceAbstractionStarter]: For program point L37-1(lines 37 41) no Hoare annotation was computed. [2019-11-25 08:54:03,147 INFO L444 ceAbstractionStarter]: For program point L66(line 66) no Hoare annotation was computed. [2019-11-25 08:54:03,148 INFO L444 ceAbstractionStarter]: For program point L33(lines 33 41) no Hoare annotation was computed. [2019-11-25 08:54:03,148 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:54:03,148 INFO L444 ceAbstractionStarter]: For program point L33-1(lines 33 41) no Hoare annotation was computed. [2019-11-25 08:54:03,148 INFO L444 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2019-11-25 08:54:03,148 INFO L444 ceAbstractionStarter]: For program point L50-2(line 50) no Hoare annotation was computed. [2019-11-25 08:54:03,148 INFO L440 ceAbstractionStarter]: At program point L50-3(lines 44 51) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_fmin_double_~y (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (not (fp.eq |ULTIMATE.start_fmin_double_#res| |ULTIMATE.start_fmin_double_#res|))) [2019-11-25 08:54:03,148 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 41) no Hoare annotation was computed. [2019-11-25 08:54:03,148 INFO L444 ceAbstractionStarter]: For program point L30-1(lines 30 41) no Hoare annotation was computed. [2019-11-25 08:54:03,148 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2019-11-25 08:54:03,152 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:54:03,156 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:54:03,157 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:54:03,158 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:54:03,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:54:03 BoogieIcfgContainer [2019-11-25 08:54:03,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:54:03,162 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:54:03,162 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:54:03,162 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:54:03,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:53:58" (3/4) ... [2019-11-25 08:54:03,165 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:54:03,175 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-25 08:54:03,175 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-25 08:54:03,176 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:54:03,200 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && !~fp.eq~DOUBLE(\result, \result) [2019-11-25 08:54:03,201 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result [2019-11-25 08:54:03,201 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!~fp.eq~DOUBLE(y, y) && !(0bv32 == \result)) || (!~fp.eq~DOUBLE(y, y) && !~fp.eq~DOUBLE(x, x)) [2019-11-25 08:54:03,231 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a1149b41-d640-4a1d-9ecc-bb52c702ad74/bin/uautomizer/witness.graphml [2019-11-25 08:54:03,231 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:54:03,233 INFO L168 Benchmark]: Toolchain (without parser) took 5559.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 960.4 MB in the beginning and 918.9 MB in the end (delta: 41.6 MB). Peak memory consumption was 228.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:03,234 INFO L168 Benchmark]: CDTParser took 0.22 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. [2019-11-25 08:54:03,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.63 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. [2019-11-25 08:54:03,234 INFO L168 Benchmark]: Boogie Procedure Inliner took 156.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 944.3 MB in the beginning and 1.2 GB in the end (delta: -232.2 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:03,235 INFO L168 Benchmark]: Boogie Preprocessor took 52.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:03,235 INFO L168 Benchmark]: RCFGBuilder took 438.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:03,235 INFO L168 Benchmark]: TraceAbstraction took 4545.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 925.6 MB in the end (delta: 223.6 MB). Peak memory consumption was 223.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:03,236 INFO L168 Benchmark]: Witness Printer took 69.87 ms. Allocated memory is still 1.2 GB. Free memory was 925.6 MB in the beginning and 918.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:03,238 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 290.63 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 156.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 944.3 MB in the beginning and 1.2 GB in the end (delta: -232.2 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 438.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4545.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 925.6 MB in the end (delta: 223.6 MB). Peak memory consumption was 223.6 MB. Max. memory is 11.5 GB. * Witness Printer took 69.87 ms. Allocated memory is still 1.2 GB. Free memory was 925.6 MB in the beginning and 918.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 66]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 44]: Loop Invariant [2019-11-25 08:54:03,243 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:54:03,243 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 16]: Loop Invariant [2019-11-25 08:54:03,244 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:54:03,244 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(y, y) && !~fp.eq~DOUBLE(x, x) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (!~fp.eq~DOUBLE(y, y) && !(0bv32 == \result)) || (!~fp.eq~DOUBLE(y, y) && !~fp.eq~DOUBLE(x, x)) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(y, y) && !~fp.eq~DOUBLE(x, x) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(y, y) && !~fp.eq~DOUBLE(x, x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 1 error locations. Result: SAFE, OverallTime: 4.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 182 SDtfs, 107 SDslu, 476 SDs, 0 SdLazy, 126 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 130 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 7 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 6 MinimizatonAttempts, 42 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 19 NumberOfFragments, 74 HoareAnnotationTreeSize, 7 FomulaSimplifications, 184 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 39 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 164 ConstructedInterpolants, 36 QuantifiedInterpolants, 8562 SizeOfPredicates, 32 NumberOfNonLiveVariables, 333 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...