./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/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 0a264ac1dee459017a9965df88403c901cb7750b ........................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/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 0a264ac1dee459017a9965df88403c901cb7750b .................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:53:15,372 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:53:15,374 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:53:15,382 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:53:15,382 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:53:15,383 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:53:15,384 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:53:15,385 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:53:15,386 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:53:15,387 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:53:15,387 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:53:15,387 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:53:15,388 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:53:15,389 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:53:15,389 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:53:15,390 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:53:15,391 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:53:15,392 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:53:15,393 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:53:15,394 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:53:15,395 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:53:15,396 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:53:15,397 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:53:15,397 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:53:15,397 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:53:15,398 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:53:15,399 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:53:15,399 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:53:15,400 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:53:15,401 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:53:15,401 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:53:15,401 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:53:15,401 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:53:15,402 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:53:15,402 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:53:15,403 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:53:15,403 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 12:53:15,410 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:53:15,410 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:53:15,411 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:53:15,411 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:53:15,411 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:53:15,411 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:53:15,411 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:53:15,411 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:53:15,411 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:53:15,411 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:53:15,412 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:53:15,412 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:53:15,412 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:53:15,412 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:53:15,412 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:53:15,412 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:53:15,412 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:53:15,412 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:53:15,412 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:53:15,412 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:53:15,412 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:53:15,412 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:53:15,412 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:53:15,413 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:53:15,413 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:53:15,413 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:53:15,413 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:53:15,413 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:53:15,413 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:53:15,413 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:53:15,413 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/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 -> 0a264ac1dee459017a9965df88403c901cb7750b [2018-11-18 12:53:15,436 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:53:15,445 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:53:15,448 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:53:15,449 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:53:15,449 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:53:15,450 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c [2018-11-18 12:53:15,496 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/data/c9e152118/be82f4a1413b4fbbad6d6902338a4097/FLAGfecb03e9b [2018-11-18 12:53:15,889 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:53:15,890 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c [2018-11-18 12:53:15,894 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/data/c9e152118/be82f4a1413b4fbbad6d6902338a4097/FLAGfecb03e9b [2018-11-18 12:53:15,902 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/data/c9e152118/be82f4a1413b4fbbad6d6902338a4097 [2018-11-18 12:53:15,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:53:15,905 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:53:15,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:53:15,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:53:15,909 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:53:15,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:53:15" (1/1) ... [2018-11-18 12:53:15,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411459c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:15, skipping insertion in model container [2018-11-18 12:53:15,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:53:15" (1/1) ... [2018-11-18 12:53:15,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:53:15,931 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:53:16,031 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:53:16,033 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:53:16,042 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:53:16,050 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:53:16,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:16 WrapperNode [2018-11-18 12:53:16,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:53:16,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:53:16,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:53:16,052 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:53:16,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:16" (1/1) ... [2018-11-18 12:53:16,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:16" (1/1) ... [2018-11-18 12:53:16,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:16" (1/1) ... [2018-11-18 12:53:16,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:16" (1/1) ... [2018-11-18 12:53:16,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:16" (1/1) ... [2018-11-18 12:53:16,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:16" (1/1) ... [2018-11-18 12:53:16,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:16" (1/1) ... [2018-11-18 12:53:16,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:53:16,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:53:16,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:53:16,070 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:53:16,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/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 [2018-11-18 12:53:16,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:53:16,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:53:16,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 12:53:16,139 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:53:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:53:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 12:53:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 12:53:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 12:53:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:53:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:53:16,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:53:16,242 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:53:16,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:53:16 BoogieIcfgContainer [2018-11-18 12:53:16,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:53:16,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:53:16,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:53:16,245 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:53:16,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:53:15" (1/3) ... [2018-11-18 12:53:16,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91ab211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:53:16, skipping insertion in model container [2018-11-18 12:53:16,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:16" (2/3) ... [2018-11-18 12:53:16,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91ab211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:53:16, skipping insertion in model container [2018-11-18 12:53:16,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:53:16" (3/3) ... [2018-11-18 12:53:16,247 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_int_true-unreach-call_true-termination.c [2018-11-18 12:53:16,253 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:53:16,258 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:53:16,268 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:53:16,290 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:53:16,291 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:53:16,291 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:53:16,291 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:53:16,291 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:53:16,291 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:53:16,291 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:53:16,292 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:53:16,292 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:53:16,306 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-18 12:53:16,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 12:53:16,311 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:53:16,312 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:53:16,314 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:53:16,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:53:16,319 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-18 12:53:16,320 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:53:16,321 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:53:16,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:53:16,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:53:16,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:53:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:53:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:53:16,411 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:53:16,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:53:16 BoogieIcfgContainer [2018-11-18 12:53:16,427 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:53:16,427 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:53:16,428 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:53:16,428 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:53:16,428 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:53:16" (3/4) ... [2018-11-18 12:53:16,430 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:53:16,430 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:53:16,431 INFO L168 Benchmark]: Toolchain (without parser) took 526.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -163.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:53:16,432 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:53:16,432 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.19 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:16,433 INFO L168 Benchmark]: Boogie Preprocessor took 18.77 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:16,433 INFO L168 Benchmark]: RCFGBuilder took 171.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:16,434 INFO L168 Benchmark]: TraceAbstraction took 184.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:16,434 INFO L168 Benchmark]: Witness Printer took 2.92 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. [2018-11-18 12:53:16,436 INFO L336 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 145.19 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.77 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 171.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 184.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.92 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: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 18. Possible FailurePath: [L12] int x; [L13] float y, z; [L15] x = __VERIFIER_nondet_int() [L18] y = x*x - 2.f VAL [x=0] [L19] CALL __VERIFIER_assert(y != 0.f) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-5842f4b [2018-11-18 12:53:17,907 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:53:17,908 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:53:17,917 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:53:17,918 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:53:17,918 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:53:17,919 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:53:17,920 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:53:17,921 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:53:17,922 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:53:17,923 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:53:17,923 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:53:17,924 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:53:17,925 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:53:17,925 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:53:17,926 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:53:17,927 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:53:17,928 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:53:17,929 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:53:17,930 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:53:17,931 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:53:17,932 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:53:17,933 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:53:17,934 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:53:17,934 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:53:17,934 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:53:17,935 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:53:17,936 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:53:17,936 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:53:17,937 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:53:17,937 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:53:17,938 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:53:17,938 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:53:17,938 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:53:17,938 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:53:17,939 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:53:17,939 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 12:53:17,949 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:53:17,950 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:53:17,950 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:53:17,950 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:53:17,951 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:53:17,951 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:53:17,951 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:53:17,951 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:53:17,951 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:53:17,952 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:53:17,952 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:53:17,952 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:53:17,952 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:53:17,952 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:53:17,952 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 12:53:17,952 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 12:53:17,953 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:53:17,953 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:53:17,953 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:53:17,953 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:53:17,953 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:53:17,953 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:53:17,953 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:53:17,954 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:53:17,954 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:53:17,954 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:53:17,954 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:53:17,954 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:53:17,954 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 12:53:17,954 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:53:17,955 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 12:53:17,955 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 12:53:17,955 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/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 -> 0a264ac1dee459017a9965df88403c901cb7750b [2018-11-18 12:53:17,985 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:53:17,994 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:53:17,997 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:53:17,998 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:53:17,998 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:53:17,999 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c [2018-11-18 12:53:18,044 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/data/17a115240/f9085c66a4564c8493138de0764068ba/FLAGecff82256 [2018-11-18 12:53:18,367 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:53:18,367 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c [2018-11-18 12:53:18,370 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/data/17a115240/f9085c66a4564c8493138de0764068ba/FLAGecff82256 [2018-11-18 12:53:18,799 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/data/17a115240/f9085c66a4564c8493138de0764068ba [2018-11-18 12:53:18,802 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:53:18,803 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:53:18,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:53:18,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:53:18,806 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:53:18,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:53:18" (1/1) ... [2018-11-18 12:53:18,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ce950b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:18, skipping insertion in model container [2018-11-18 12:53:18,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:53:18" (1/1) ... [2018-11-18 12:53:18,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:53:18,825 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:53:18,933 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:53:18,940 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:53:18,951 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:53:18,961 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:53:18,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:18 WrapperNode [2018-11-18 12:53:18,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:53:18,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:53:18,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:53:18,963 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:53:18,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:18" (1/1) ... [2018-11-18 12:53:18,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:18" (1/1) ... [2018-11-18 12:53:18,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:18" (1/1) ... [2018-11-18 12:53:18,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:18" (1/1) ... [2018-11-18 12:53:18,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:18" (1/1) ... [2018-11-18 12:53:18,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:18" (1/1) ... [2018-11-18 12:53:18,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:18" (1/1) ... [2018-11-18 12:53:18,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:53:18,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:53:18,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:53:18,985 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:53:18,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/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 [2018-11-18 12:53:19,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:53:19,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:53:19,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 12:53:19,026 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:53:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:53:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 12:53:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 12:53:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 12:53:19,026 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:53:19,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:53:19,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:53:19,848 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:53:19,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:53:19 BoogieIcfgContainer [2018-11-18 12:53:19,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:53:19,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:53:19,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:53:19,851 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:53:19,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:53:18" (1/3) ... [2018-11-18 12:53:19,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ea57e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:53:19, skipping insertion in model container [2018-11-18 12:53:19,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:53:18" (2/3) ... [2018-11-18 12:53:19,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ea57e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:53:19, skipping insertion in model container [2018-11-18 12:53:19,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:53:19" (3/3) ... [2018-11-18 12:53:19,854 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_int_true-unreach-call_true-termination.c [2018-11-18 12:53:19,860 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:53:19,864 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:53:19,873 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:53:19,890 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:53:19,891 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:53:19,891 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:53:19,891 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:53:19,891 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:53:19,891 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:53:19,891 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:53:19,891 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:53:19,891 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:53:19,903 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-18 12:53:19,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 12:53:19,907 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:53:19,907 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:53:19,909 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:53:19,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:53:19,912 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-18 12:53:19,915 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:53:19,915 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/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 [2018-11-18 12:53:19,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:53:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:53:19,993 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:53:22,230 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ BitVec 32))) (= c_main_~y~0 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (bvmul main_~x~0 main_~x~0)) ((_ to_fp 8 24) roundNearestTiesToEven 2.0)))) is different from true [2018-11-18 12:53:26,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:53:26,376 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:53:26,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:53:26,385 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 12:53:26,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 12:53:26,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 12:53:26,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2018-11-18 12:53:26,403 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-11-18 12:53:26,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:53:26,433 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-11-18 12:53:26,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 12:53:26,434 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-18 12:53:26,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:53:26,438 INFO L225 Difference]: With dead ends: 24 [2018-11-18 12:53:26,438 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:53:26,440 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=11, Invalid=12, Unknown=1, NotChecked=6, Total=30 [2018-11-18 12:53:26,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:53:26,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:53:26,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:53:26,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:53:26,456 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-18 12:53:26,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:53:26,457 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:53:26,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 12:53:26,457 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:53:26,457 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:53:26,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:53:28,898 WARN L180 SmtUtils]: Spent 2.41 s on a formula simplification that was a NOOP. DAG size: 10 [2018-11-18 12:53:28,900 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 12:53:28,900 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:53:28,900 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:53:28,901 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 12:53:28,901 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:53:28,901 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:53:28,901 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 22) the Hoare annotation is: true [2018-11-18 12:53:28,901 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 22) no Hoare annotation was computed. [2018-11-18 12:53:28,901 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 22) no Hoare annotation was computed. [2018-11-18 12:53:28,902 INFO L421 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: (exists ((main_~x~0 (_ BitVec 32))) (= main_~y~0 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (bvmul main_~x~0 main_~x~0)) ((_ to_fp 8 24) roundNearestTiesToEven 2.0)))) [2018-11-18 12:53:28,902 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-18 12:53:28,906 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-11-18 12:53:28,906 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 8) the Hoare annotation is: true [2018-11-18 12:53:28,906 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 8) no Hoare annotation was computed. [2018-11-18 12:53:28,907 INFO L425 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-11-18 12:53:28,907 INFO L425 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-11-18 12:53:28,907 INFO L425 ceAbstractionStarter]: For program point L8-3(line 8) no Hoare annotation was computed. [2018-11-18 12:53:28,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:53:28 BoogieIcfgContainer [2018-11-18 12:53:28,910 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:53:28,910 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:53:28,910 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:53:28,911 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:53:28,912 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:53:19" (3/4) ... [2018-11-18 12:53:28,915 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:53:28,920 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:53:28,921 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:53:28,921 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-18 12:53:28,924 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 12:53:28,924 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 12:53:28,925 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 12:53:28,947 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a77496e7-62aa-4318-a3d4-050b87c5d1dc/bin-2019/uautomizer/witness.graphml [2018-11-18 12:53:28,947 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:53:28,948 INFO L168 Benchmark]: Toolchain (without parser) took 10145.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -128.4 MB). Peak memory consumption was 9.0 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:28,949 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:53:28,949 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.49 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:28,949 INFO L168 Benchmark]: Boogie Preprocessor took 21.54 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:28,950 INFO L168 Benchmark]: RCFGBuilder took 864.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:28,950 INFO L168 Benchmark]: TraceAbstraction took 9060.71 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: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:53:28,950 INFO L168 Benchmark]: Witness Printer took 36.90 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. [2018-11-18 12:53:28,952 INFO L336 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 158.49 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.54 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 864.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9060.71 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: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. * Witness Printer took 36.90 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: - PositiveResult [Line: 8]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 9.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 2.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 5 SDslu, 19 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 18 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 1 QuantifiedInterpolants, 224 SizeOfPredicates, 3 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...