./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0165a55c46ef5a57261b602c26894979b70d9ffe ................................................................................................................................................................................................................................ 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/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0165a55c46ef5a57261b602c26894979b70d9ffe ................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:22:44,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:44,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:44,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:44,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:44,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:44,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:44,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:44,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:44,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:44,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:44,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:44,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:44,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:44,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:44,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:44,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:44,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:44,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:44,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:44,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:44,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:44,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:44,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:44,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:44,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:44,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:44,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:44,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:44,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:44,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:44,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:44,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:44,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:44,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:44,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:44,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:44,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:44,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:44,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:44,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:44,398 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:22:44,410 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:44,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:44,411 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:44,411 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:44,411 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:44,411 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:44,411 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:22:44,411 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:44,412 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:44,412 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:22:44,412 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:22:44,412 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:44,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:44,413 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:44,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:44,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:44,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:44,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:44,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:44,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:44,414 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:44,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:44,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:44,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:44,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:44,415 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:44,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:44,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:44,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:44,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:44,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:44,416 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:22:44,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:22:44,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:44,416 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:44,416 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan 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 -> Taipan 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 -> 0165a55c46ef5a57261b602c26894979b70d9ffe [2019-10-22 11:22:44,440 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:44,450 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:44,453 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:44,454 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:44,454 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:44,455 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2019-10-22 11:22:44,513 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/data/ed1bf94f3/7fa1868358684f37969a15745865c73c/FLAG2f42bed71 [2019-10-22 11:22:44,853 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:44,853 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2019-10-22 11:22:44,857 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/data/ed1bf94f3/7fa1868358684f37969a15745865c73c/FLAG2f42bed71 [2019-10-22 11:22:45,290 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/data/ed1bf94f3/7fa1868358684f37969a15745865c73c [2019-10-22 11:22:45,294 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:45,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:45,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:45,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:45,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:45,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:45" (1/1) ... [2019-10-22 11:22:45,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a5fd4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:45, skipping insertion in model container [2019-10-22 11:22:45,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:45" (1/1) ... [2019-10-22 11:22:45,310 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:45,323 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:45,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:45,444 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:45,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:45,524 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:45,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:45 WrapperNode [2019-10-22 11:22:45,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:45,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:45,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:45,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:45,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:45" (1/1) ... [2019-10-22 11:22:45,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:45" (1/1) ... [2019-10-22 11:22:45,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:45,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:45,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:45,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:45,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:45" (1/1) ... [2019-10-22 11:22:45,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:45" (1/1) ... [2019-10-22 11:22:45,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:45" (1/1) ... [2019-10-22 11:22:45,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:45" (1/1) ... [2019-10-22 11:22:45,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:45" (1/1) ... [2019-10-22 11:22:45,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:45" (1/1) ... [2019-10-22 11:22:45,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:45" (1/1) ... [2019-10-22 11:22:45,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:45,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:45,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:45,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:45,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/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 [2019-10-22 11:22:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:45,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:45,740 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:45,741 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 11:22:45,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:45 BoogieIcfgContainer [2019-10-22 11:22:45,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:45,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:45,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:45,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:45,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:45" (1/3) ... [2019-10-22 11:22:45,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a14545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:45, skipping insertion in model container [2019-10-22 11:22:45,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:45" (2/3) ... [2019-10-22 11:22:45,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a14545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:45, skipping insertion in model container [2019-10-22 11:22:45,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:45" (3/3) ... [2019-10-22 11:22:45,752 INFO L109 eAbstractionObserver]: Analyzing ICFG implicitfloatconversion.c [2019-10-22 11:22:45,762 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:45,768 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:22:45,779 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:22:45,804 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:45,804 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:45,804 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:45,805 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:45,805 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:45,805 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:45,805 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:45,805 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:45,817 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-10-22 11:22:45,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 11:22:45,822 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:45,822 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 11:22:45,823 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:45,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:45,828 INFO L82 PathProgramCache]: Analyzing trace with hash 30884, now seen corresponding path program 1 times [2019-10-22 11:22:45,836 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:45,837 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470774285] [2019-10-22 11:22:45,837 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:45,837 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:45,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:22:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:22:45,924 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:22:45,925 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:22:45,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:22:45 BoogieIcfgContainer [2019-10-22 11:22:45,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:22:45,939 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:22:45,939 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:22:45,939 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:22:45,940 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:45" (3/4) ... [2019-10-22 11:22:45,944 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 11:22:45,944 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:22:45,946 INFO L168 Benchmark]: Toolchain (without parser) took 650.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -163.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:45,947 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:45,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -193.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:45,948 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:45,949 INFO L168 Benchmark]: Boogie Preprocessor took 13.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:45,950 INFO L168 Benchmark]: RCFGBuilder took 174.63 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: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:45,950 INFO L168 Benchmark]: TraceAbstraction took 196.04 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: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:45,950 INFO L168 Benchmark]: Witness Printer took 4.95 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. [2019-10-22 11:22:45,953 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 228.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -193.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 174.63 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: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 196.04 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: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.95 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: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 5, overapproximation of to_real at line 4. Possible FailurePath: [L4] float f = 1; [L5] int i = f; [L6] COND TRUE i == 1 [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:22:47,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:47,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:47,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:47,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:47,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:47,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:47,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:47,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:47,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:47,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:47,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:47,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:47,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:47,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:47,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:47,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:47,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:47,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:47,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:47,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:47,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:47,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:47,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:47,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:47,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:47,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:47,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:47,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:47,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:47,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:47,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:47,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:47,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:47,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:47,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:47,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:47,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:47,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:47,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:47,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:47,880 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:22:47,892 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:47,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:47,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:47,893 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:47,893 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:47,893 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:47,893 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:47,894 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:47,894 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:47,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:47,895 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:47,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:47,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:47,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:47,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:47,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:47,896 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:22:47,896 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:22:47,896 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:47,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:47,896 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:22:47,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:47,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:47,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:47,897 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:47,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:47,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:47,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:47,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:47,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:47,898 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:22:47,898 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:22:47,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:47,899 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:47,899 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/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan 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 -> Taipan 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 -> 0165a55c46ef5a57261b602c26894979b70d9ffe [2019-10-22 11:22:47,925 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:47,935 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:47,938 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:47,939 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:47,939 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:47,940 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/../../sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2019-10-22 11:22:47,984 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/data/4c96ec2c1/b92e1ba9d92b4e1a947c90dd644e02af/FLAGcb2f2661b [2019-10-22 11:22:48,362 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:48,363 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/sv-benchmarks/c/bitvector-regression/implicitfloatconversion.c [2019-10-22 11:22:48,366 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/data/4c96ec2c1/b92e1ba9d92b4e1a947c90dd644e02af/FLAGcb2f2661b [2019-10-22 11:22:48,780 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/data/4c96ec2c1/b92e1ba9d92b4e1a947c90dd644e02af [2019-10-22 11:22:48,782 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:48,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:48,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:48,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:48,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:48,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:48,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40101a48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48, skipping insertion in model container [2019-10-22 11:22:48,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:48,797 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:48,809 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:48,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:48,967 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:48,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:48,992 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:48,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48 WrapperNode [2019-10-22 11:22:48,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:48,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:48,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:48,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:49,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:49,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:49,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:49,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:49,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:49,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:49,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:49,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:49,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:49,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:49,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:49,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:49,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:49,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:49,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:49,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:49,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:49,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/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 [2019-10-22 11:22:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:49,234 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:49,234 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 11:22:49,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:49 BoogieIcfgContainer [2019-10-22 11:22:49,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:49,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:49,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:49,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:49,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:48" (1/3) ... [2019-10-22 11:22:49,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc9c407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:49, skipping insertion in model container [2019-10-22 11:22:49,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (2/3) ... [2019-10-22 11:22:49,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc9c407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:49, skipping insertion in model container [2019-10-22 11:22:49,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:49" (3/3) ... [2019-10-22 11:22:49,242 INFO L109 eAbstractionObserver]: Analyzing ICFG implicitfloatconversion.c [2019-10-22 11:22:49,249 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:49,254 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:22:49,261 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:22:49,279 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:49,279 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:49,279 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:49,279 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:49,279 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:49,279 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:49,280 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:49,280 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:49,292 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-10-22 11:22:49,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 11:22:49,297 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:49,297 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 11:22:49,298 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:49,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:49,302 INFO L82 PathProgramCache]: Analyzing trace with hash 30884, now seen corresponding path program 1 times [2019-10-22 11:22:49,309 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:49,309 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225692412] [2019-10-22 11:22:49,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/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 [2019-10-22 11:22:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:22:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:22:49,368 INFO L168 tionRefinementEngine]: Strategy WALRUS found a feasible trace [2019-10-22 11:22:49,369 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:22:49,574 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 11:22:49,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:22:49 BoogieIcfgContainer [2019-10-22 11:22:49,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:22:49,586 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:22:49,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:22:49,587 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:22:49,587 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:49" (3/4) ... [2019-10-22 11:22:49,589 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:22:49,621 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a2df220d-9e7b-466d-abb7-20242bfe6be8/bin/utaipan/witness.graphml [2019-10-22 11:22:49,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:22:49,623 INFO L168 Benchmark]: Toolchain (without parser) took 840.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -137.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:49,624 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:49,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 208.81 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:49,625 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.56 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:49,625 INFO L168 Benchmark]: Boogie Preprocessor took 73.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:49,626 INFO L168 Benchmark]: RCFGBuilder took 138.93 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:49,626 INFO L168 Benchmark]: TraceAbstraction took 349.80 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:49,627 INFO L168 Benchmark]: Witness Printer took 35.48 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:49,629 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 208.81 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.56 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 138.93 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 349.80 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Witness Printer took 35.48 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L4] float f = 1; [L5] int i = f; [L6] COND TRUE i == 1 [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...