./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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/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_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/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_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/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_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/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 0.1.23-1dbac8b [2018-11-10 00:39:54,520 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 00:39:54,522 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 00:39:54,530 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 00:39:54,531 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 00:39:54,531 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 00:39:54,532 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 00:39:54,533 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 00:39:54,535 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 00:39:54,535 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 00:39:54,536 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 00:39:54,536 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 00:39:54,537 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 00:39:54,537 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 00:39:54,538 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 00:39:54,539 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 00:39:54,539 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 00:39:54,540 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 00:39:54,542 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 00:39:54,543 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 00:39:54,544 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 00:39:54,544 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 00:39:54,546 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 00:39:54,546 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 00:39:54,546 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 00:39:54,547 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 00:39:54,548 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 00:39:54,548 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 00:39:54,549 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 00:39:54,550 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 00:39:54,550 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 00:39:54,550 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 00:39:54,550 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 00:39:54,551 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 00:39:54,551 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 00:39:54,552 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 00:39:54,552 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 00:39:54,562 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 00:39:54,562 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 00:39:54,563 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 00:39:54,563 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 00:39:54,563 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 00:39:54,564 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 00:39:54,564 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 00:39:54,564 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 00:39:54,564 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 00:39:54,564 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 00:39:54,564 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 00:39:54,564 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 00:39:54,565 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 00:39:54,565 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 00:39:54,565 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 00:39:54,565 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 00:39:54,565 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 00:39:54,565 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 00:39:54,565 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 00:39:54,566 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 00:39:54,566 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 00:39:54,566 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 00:39:54,566 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 00:39:54,566 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 00:39:54,566 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 00:39:54,566 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 00:39:54,567 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 00:39:54,567 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 00:39:54,567 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 00:39:54,567 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_b1f57a29-5281-4f87-8364-7b1d29c1c265/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 [2018-11-10 00:39:54,591 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 00:39:54,600 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 00:39:54,605 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 00:39:54,607 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 00:39:54,607 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 00:39:54,607 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c [2018-11-10 00:39:54,643 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/data/b78c348f6/4d208cbc486a4a9682f3747e4d72ade3/FLAG6534af928 [2018-11-10 00:39:55,035 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 00:39:55,035 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c [2018-11-10 00:39:55,039 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/data/b78c348f6/4d208cbc486a4a9682f3747e4d72ade3/FLAG6534af928 [2018-11-10 00:39:55,048 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/data/b78c348f6/4d208cbc486a4a9682f3747e4d72ade3 [2018-11-10 00:39:55,050 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 00:39:55,051 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 00:39:55,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 00:39:55,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 00:39:55,053 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 00:39:55,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:39:55" (1/1) ... [2018-11-10 00:39:55,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50020d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:55, skipping insertion in model container [2018-11-10 00:39:55,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:39:55" (1/1) ... [2018-11-10 00:39:55,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 00:39:55,073 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 00:39:55,167 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 00:39:55,169 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 00:39:55,179 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 00:39:55,187 INFO L193 MainTranslator]: Completed translation [2018-11-10 00:39:55,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:55 WrapperNode [2018-11-10 00:39:55,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 00:39:55,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 00:39:55,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 00:39:55,188 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 00:39:55,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:55" (1/1) ... [2018-11-10 00:39:55,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:55" (1/1) ... [2018-11-10 00:39:55,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:55" (1/1) ... [2018-11-10 00:39:55,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:55" (1/1) ... [2018-11-10 00:39:55,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:55" (1/1) ... [2018-11-10 00:39:55,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:55" (1/1) ... [2018-11-10 00:39:55,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:55" (1/1) ... [2018-11-10 00:39:55,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 00:39:55,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 00:39:55,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 00:39:55,204 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 00:39:55,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/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 [2018-11-10 00:39:55,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 00:39:55,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 00:39:55,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 00:39:55,271 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 00:39:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 00:39:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 00:39:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 00:39:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 00:39:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 00:39:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 00:39:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 00:39:55,354 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 00:39:55,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:39:55 BoogieIcfgContainer [2018-11-10 00:39:55,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 00:39:55,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 00:39:55,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 00:39:55,356 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 00:39:55,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:39:55" (1/3) ... [2018-11-10 00:39:55,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4fbfe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:39:55, skipping insertion in model container [2018-11-10 00:39:55,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:55" (2/3) ... [2018-11-10 00:39:55,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4fbfe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:39:55, skipping insertion in model container [2018-11-10 00:39:55,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:39:55" (3/3) ... [2018-11-10 00:39:55,358 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_int_true-unreach-call_true-termination.c [2018-11-10 00:39:55,364 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 00:39:55,368 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 00:39:55,376 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 00:39:55,392 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 00:39:55,393 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 00:39:55,393 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 00:39:55,393 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 00:39:55,393 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 00:39:55,393 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 00:39:55,393 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 00:39:55,393 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 00:39:55,393 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 00:39:55,403 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-10 00:39:55,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 00:39:55,406 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 00:39:55,406 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 00:39:55,408 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 00:39:55,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 00:39:55,413 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-10 00:39:55,414 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 00:39:55,414 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 00:39:55,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 00:39:55,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 00:39:55,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 00:39:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 00:39:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 00:39:55,485 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 00:39:55,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:39:55 BoogieIcfgContainer [2018-11-10 00:39:55,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 00:39:55,497 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 00:39:55,497 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 00:39:55,497 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 00:39:55,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:39:55" (3/4) ... [2018-11-10 00:39:55,500 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 00:39:55,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 00:39:55,500 INFO L168 Benchmark]: Toolchain (without parser) took 450.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 962.4 MB in the beginning and 1.1 GB in the end (delta: -139.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 00:39:55,501 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 00:39:55,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 136.58 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 00:39:55,502 INFO L168 Benchmark]: Boogie Preprocessor took 15.32 ms. Allocated memory is still 1.0 GB. Free memory is still 951.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 00:39:55,502 INFO L168 Benchmark]: RCFGBuilder took 150.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 951.6 MB in the beginning and 1.1 GB in the end (delta: -161.0 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-11-10 00:39:55,503 INFO L168 Benchmark]: TraceAbstraction took 142.27 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 00:39:55,503 INFO L168 Benchmark]: Witness Printer took 2.75 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. [2018-11-10 00:39:55,505 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 136.58 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.32 ms. Allocated memory is still 1.0 GB. Free memory is still 951.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 150.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 951.6 MB in the beginning and 1.1 GB in the end (delta: -161.0 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 142.27 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.75 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 0.1.23-1dbac8b [2018-11-10 00:39:56,943 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 00:39:56,945 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 00:39:56,953 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 00:39:56,954 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 00:39:56,954 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 00:39:56,955 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 00:39:56,956 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 00:39:56,958 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 00:39:56,958 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 00:39:56,959 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 00:39:56,959 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 00:39:56,960 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 00:39:56,960 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 00:39:56,961 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 00:39:56,962 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 00:39:56,962 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 00:39:56,963 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 00:39:56,965 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 00:39:56,966 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 00:39:56,967 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 00:39:56,968 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 00:39:56,969 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 00:39:56,969 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 00:39:56,970 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 00:39:56,971 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 00:39:56,971 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 00:39:56,972 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 00:39:56,972 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 00:39:56,973 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 00:39:56,973 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 00:39:56,974 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 00:39:56,975 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 00:39:56,975 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 00:39:56,975 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 00:39:56,976 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 00:39:56,976 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-10 00:39:56,986 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 00:39:56,987 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 00:39:56,987 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 00:39:56,987 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 00:39:56,988 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 00:39:56,988 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 00:39:56,988 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 00:39:56,988 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 00:39:56,988 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 00:39:56,989 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 00:39:56,989 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 00:39:56,989 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 00:39:56,989 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 00:39:56,989 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 00:39:56,989 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 00:39:56,989 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 00:39:56,990 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 00:39:56,990 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 00:39:56,991 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 00:39:56,991 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 00:39:56,991 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 00:39:56,991 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 00:39:56,992 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 00:39:56,992 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 00:39:56,992 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 00:39:56,992 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 00:39:56,992 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 00:39:56,992 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-10 00:39:56,992 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 00:39:56,993 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 00:39:56,993 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 00:39:56,993 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_b1f57a29-5281-4f87-8364-7b1d29c1c265/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 [2018-11-10 00:39:57,023 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 00:39:57,032 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 00:39:57,035 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 00:39:57,036 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 00:39:57,036 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 00:39:57,037 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c [2018-11-10 00:39:57,082 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/data/21bb470dc/cc30b36fed6d44db978fbf5b70274032/FLAG676babd44 [2018-11-10 00:39:57,398 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 00:39:57,399 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/sv-benchmarks/c/float-benchs/inv_square_int_true-unreach-call_true-termination.c [2018-11-10 00:39:57,402 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/data/21bb470dc/cc30b36fed6d44db978fbf5b70274032/FLAG676babd44 [2018-11-10 00:39:57,410 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/data/21bb470dc/cc30b36fed6d44db978fbf5b70274032 [2018-11-10 00:39:57,412 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 00:39:57,413 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 00:39:57,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 00:39:57,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 00:39:57,416 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 00:39:57,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:39:57" (1/1) ... [2018-11-10 00:39:57,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de1527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:57, skipping insertion in model container [2018-11-10 00:39:57,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:39:57" (1/1) ... [2018-11-10 00:39:57,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 00:39:57,437 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 00:39:57,545 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 00:39:57,549 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 00:39:57,562 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 00:39:57,572 INFO L193 MainTranslator]: Completed translation [2018-11-10 00:39:57,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:57 WrapperNode [2018-11-10 00:39:57,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 00:39:57,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 00:39:57,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 00:39:57,573 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 00:39:57,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:57" (1/1) ... [2018-11-10 00:39:57,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:57" (1/1) ... [2018-11-10 00:39:57,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:57" (1/1) ... [2018-11-10 00:39:57,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:57" (1/1) ... [2018-11-10 00:39:57,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:57" (1/1) ... [2018-11-10 00:39:57,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:57" (1/1) ... [2018-11-10 00:39:57,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:57" (1/1) ... [2018-11-10 00:39:57,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 00:39:57,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 00:39:57,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 00:39:57,591 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 00:39:57,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/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 [2018-11-10 00:39:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 00:39:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 00:39:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 00:39:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 00:39:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 00:39:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 00:39:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 00:39:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 00:39:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 00:39:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 00:39:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 00:39:58,313 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 00:39:58,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:39:58 BoogieIcfgContainer [2018-11-10 00:39:58,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 00:39:58,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 00:39:58,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 00:39:58,316 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 00:39:58,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:39:57" (1/3) ... [2018-11-10 00:39:58,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a269fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:39:58, skipping insertion in model container [2018-11-10 00:39:58,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:39:57" (2/3) ... [2018-11-10 00:39:58,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a269fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:39:58, skipping insertion in model container [2018-11-10 00:39:58,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:39:58" (3/3) ... [2018-11-10 00:39:58,318 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_int_true-unreach-call_true-termination.c [2018-11-10 00:39:58,324 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 00:39:58,328 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 00:39:58,337 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 00:39:58,355 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 00:39:58,355 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 00:39:58,355 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 00:39:58,355 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 00:39:58,355 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 00:39:58,355 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 00:39:58,356 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 00:39:58,356 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 00:39:58,356 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 00:39:58,369 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-10 00:39:58,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 00:39:58,373 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 00:39:58,374 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 00:39:58,376 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 00:39:58,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 00:39:58,381 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-10 00:39:58,384 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 00:39:58,385 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/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 [2018-11-10 00:39:58,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 00:39:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 00:39:58,471 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 00:40:00,874 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ BitVec 32))) (= (fp.sub RNE ((_ to_fp 8 24) RNE (bvmul main_~x~0 main_~x~0)) ((_ to_fp 8 24) RNE 2.0)) c_main_~y~0)) is different from true [2018-11-10 00:40:01,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 00:40:01,992 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 00:40:02,001 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 00:40:02,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 00:40:02,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 00:40:02,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 00:40:02,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2018-11-10 00:40:02,018 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-11-10 00:40:02,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 00:40:02,046 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-11-10 00:40:02,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 00:40:02,047 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-10 00:40:02,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 00:40:02,051 INFO L225 Difference]: With dead ends: 24 [2018-11-10 00:40:02,051 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 00:40:02,053 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=11, Invalid=12, Unknown=1, NotChecked=6, Total=30 [2018-11-10 00:40:02,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 00:40:02,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 00:40:02,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 00:40:02,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 00:40:02,073 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-10 00:40:02,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 00:40:02,074 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 00:40:02,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 00:40:02,074 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 00:40:02,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 00:40:02,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 00:40:04,307 WARN L179 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 10 [2018-11-10 00:40:04,310 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 00:40:04,310 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 00:40:04,310 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 00:40:04,310 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 00:40:04,310 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 00:40:04,310 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 00:40:04,310 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 22) the Hoare annotation is: true [2018-11-10 00:40:04,311 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 22) no Hoare annotation was computed. [2018-11-10 00:40:04,311 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 22) no Hoare annotation was computed. [2018-11-10 00:40:04,311 INFO L421 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: (exists ((main_~x~0 (_ BitVec 32))) (= (fp.sub RNE ((_ to_fp 8 24) RNE (bvmul main_~x~0 main_~x~0)) ((_ to_fp 8 24) RNE 2.0)) main_~y~0)) [2018-11-10 00:40:04,312 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-10 00:40:04,312 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-11-10 00:40:04,312 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 8) the Hoare annotation is: true [2018-11-10 00:40:04,313 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 8) no Hoare annotation was computed. [2018-11-10 00:40:04,313 INFO L425 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-11-10 00:40:04,313 INFO L425 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-11-10 00:40:04,313 INFO L425 ceAbstractionStarter]: For program point L8-3(line 8) no Hoare annotation was computed. [2018-11-10 00:40:04,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:40:04 BoogieIcfgContainer [2018-11-10 00:40:04,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 00:40:04,316 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 00:40:04,316 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 00:40:04,316 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 00:40:04,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:39:58" (3/4) ... [2018-11-10 00:40:04,324 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 00:40:04,328 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 00:40:04,329 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 00:40:04,329 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-10 00:40:04,339 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-10 00:40:04,340 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 00:40:04,340 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 00:40:04,363 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b1f57a29-5281-4f87-8364-7b1d29c1c265/bin-2019/uautomizer/witness.graphml [2018-11-10 00:40:04,364 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 00:40:04,364 INFO L168 Benchmark]: Toolchain (without parser) took 6952.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -115.8 MB). Peak memory consumption was 9.0 MB. Max. memory is 11.5 GB. [2018-11-10 00:40:04,365 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-11-10 00:40:04,365 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.28 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 00:40:04,365 INFO L168 Benchmark]: Boogie Preprocessor took 18.48 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 934.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 00:40:04,366 INFO L168 Benchmark]: RCFGBuilder took 722.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2018-11-10 00:40:04,366 INFO L168 Benchmark]: TraceAbstraction took 6001.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. [2018-11-10 00:40:04,366 INFO L168 Benchmark]: Witness Printer took 48.06 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. [2018-11-10 00:40:04,368 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 159.28 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.48 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 934.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 722.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6001.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. * Witness Printer took 48.06 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, 5.9s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 2.2s 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, 2.4s 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, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.5s 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...