./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_square_int.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_int.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0a264ac1dee459017a9965df88403c901cb7750b .......................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_int.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0a264ac1dee459017a9965df88403c901cb7750b .................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:17:43,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:17:43,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:17:43,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:17:43,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:17:43,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:17:43,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:17:43,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:17:43,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:17:43,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:17:43,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:17:43,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:17:43,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:17:43,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:17:43,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:17:43,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:17:43,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:17:43,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:17:43,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:17:43,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:17:43,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:17:43,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:17:43,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:17:43,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:17:43,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:17:43,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:17:43,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:17:43,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:17:43,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:17:43,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:17:43,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:17:43,430 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:17:43,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:17:43,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:17:43,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:17:43,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:17:43,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:17:43,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:17:43,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:17:43,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:17:43,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:17:43,439 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 21:17:43,469 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:17:43,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:17:43,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:17:43,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:17:43,473 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:17:43,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:17:43,474 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:17:43,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:17:43,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:17:43,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:17:43,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:17:43,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:17:43,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:17:43,477 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:17:43,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:17:43,477 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:17:43,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:17:43,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:17:43,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:17:43,478 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:17:43,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:17:43,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:17:43,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:17:43,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:17:43,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:17:43,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:17:43,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:17:43,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:17:43,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a264ac1dee459017a9965df88403c901cb7750b [2019-11-15 21:17:43,507 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:17:43,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:17:43,523 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:17:43,524 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:17:43,524 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:17:43,525 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/../../sv-benchmarks/c/float-benchs/inv_square_int.c [2019-11-15 21:17:43,585 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/data/ff5eafd4f/7dab25660eb84919b8bd212fb684cea3/FLAGc28961a74 [2019-11-15 21:17:43,937 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:17:43,938 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/sv-benchmarks/c/float-benchs/inv_square_int.c [2019-11-15 21:17:43,944 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/data/ff5eafd4f/7dab25660eb84919b8bd212fb684cea3/FLAGc28961a74 [2019-11-15 21:17:44,316 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/data/ff5eafd4f/7dab25660eb84919b8bd212fb684cea3 [2019-11-15 21:17:44,319 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:17:44,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:17:44,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:17:44,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:17:44,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:17:44,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:17:44" (1/1) ... [2019-11-15 21:17:44,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c99f82e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:44, skipping insertion in model container [2019-11-15 21:17:44,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:17:44" (1/1) ... [2019-11-15 21:17:44,336 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:17:44,349 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:17:44,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:17:44,583 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:17:44,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:17:44,728 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:17:44,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:44 WrapperNode [2019-11-15 21:17:44,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:17:44,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:17:44,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:17:44,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:17:44,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:44" (1/1) ... [2019-11-15 21:17:44,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:44" (1/1) ... [2019-11-15 21:17:44,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:17:44,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:17:44,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:17:44,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:17:44,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:44" (1/1) ... [2019-11-15 21:17:44,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:44" (1/1) ... [2019-11-15 21:17:44,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:44" (1/1) ... [2019-11-15 21:17:44,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:44" (1/1) ... [2019-11-15 21:17:44,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:44" (1/1) ... [2019-11-15 21:17:44,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:44" (1/1) ... [2019-11-15 21:17:44,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:44" (1/1) ... [2019-11-15 21:17:44,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:17:44,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:17:44,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:17:44,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:17:44,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:17:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:17:44,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:17:44,971 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:17:44,971 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 21:17:44,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:17:44 BoogieIcfgContainer [2019-11-15 21:17:44,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:17:44,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:17:44,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:17:44,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:17:44,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:17:44" (1/3) ... [2019-11-15 21:17:44,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237369cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:17:44, skipping insertion in model container [2019-11-15 21:17:44,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:44" (2/3) ... [2019-11-15 21:17:44,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237369cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:17:44, skipping insertion in model container [2019-11-15 21:17:44,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:17:44" (3/3) ... [2019-11-15 21:17:44,980 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_square_int.c [2019-11-15 21:17:44,989 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:17:44,996 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 21:17:45,008 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 21:17:45,039 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:17:45,040 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:17:45,040 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:17:45,040 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:17:45,041 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:17:45,041 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:17:45,041 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:17:45,042 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:17:45,060 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-15 21:17:45,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-15 21:17:45,068 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:17:45,069 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-15 21:17:45,071 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:17:45,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:17:45,078 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-11-15 21:17:45,088 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:17:45,088 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585428771] [2019-11-15 21:17:45,089 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:17:45,089 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:17:45,089 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:17:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:17:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:17:45,254 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:17:45,255 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 21:17:45,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:17:45 BoogieIcfgContainer [2019-11-15 21:17:45,276 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:17:45,277 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:17:45,277 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:17:45,277 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:17:45,278 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:17:44" (3/4) ... [2019-11-15 21:17:45,282 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 21:17:45,282 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:17:45,287 INFO L168 Benchmark]: Toolchain (without parser) took 963.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -167.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:17:45,288 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:17:45,290 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -199.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:17:45,291 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:17:45,292 INFO L168 Benchmark]: Boogie Preprocessor took 13.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:17:45,293 INFO L168 Benchmark]: RCFGBuilder took 187.82 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:17:45,294 INFO L168 Benchmark]: TraceAbstraction took 302.82 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. [2019-11-15 21:17:45,294 INFO L168 Benchmark]: Witness Printer took 5.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:17:45,305 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 407.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -199.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 187.82 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 302.82 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 5.69 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 someBinaryFLOATComparisonOperation at line 19, 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 [L8] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 21:17:47,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:17:47,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:17:47,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:17:47,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:17:47,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:17:47,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:17:47,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:17:47,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:17:47,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:17:47,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:17:47,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:17:47,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:17:47,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:17:47,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:17:47,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:17:47,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:17:47,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:17:47,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:17:47,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:17:47,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:17:47,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:17:47,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:17:47,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:17:47,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:17:47,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:17:47,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:17:47,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:17:47,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:17:47,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:17:47,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:17:47,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:17:47,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:17:47,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:17:47,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:17:47,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:17:47,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:17:47,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:17:47,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:17:47,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:17:47,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:17:47,619 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 21:17:47,639 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:17:47,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:17:47,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:17:47,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:17:47,642 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:17:47,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:17:47,642 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:17:47,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:17:47,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:17:47,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:17:47,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:17:47,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:17:47,644 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 21:17:47,644 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 21:17:47,644 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:17:47,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:17:47,644 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:17:47,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:17:47,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:17:47,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:17:47,645 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:17:47,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:17:47,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:17:47,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:17:47,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:17:47,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:17:47,647 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 21:17:47,647 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 21:17:47,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:17:47,647 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 21:17:47,648 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a264ac1dee459017a9965df88403c901cb7750b [2019-11-15 21:17:47,681 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:17:47,692 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:17:47,698 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:17:47,701 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:17:47,702 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:17:47,703 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/../../sv-benchmarks/c/float-benchs/inv_square_int.c [2019-11-15 21:17:47,775 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/data/0adf6ecd7/8304ce78f7f0430797c93c034e80c88e/FLAG88cf9c728 [2019-11-15 21:17:48,246 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:17:48,247 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/sv-benchmarks/c/float-benchs/inv_square_int.c [2019-11-15 21:17:48,252 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/data/0adf6ecd7/8304ce78f7f0430797c93c034e80c88e/FLAG88cf9c728 [2019-11-15 21:17:48,663 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/data/0adf6ecd7/8304ce78f7f0430797c93c034e80c88e [2019-11-15 21:17:48,666 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:17:48,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:17:48,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:17:48,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:17:48,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:17:48,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:17:48" (1/1) ... [2019-11-15 21:17:48,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5798551b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:48, skipping insertion in model container [2019-11-15 21:17:48,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:17:48" (1/1) ... [2019-11-15 21:17:48,684 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:17:48,701 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:17:48,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:17:48,877 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:17:48,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:17:48,916 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:17:48,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:48 WrapperNode [2019-11-15 21:17:48,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:17:48,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:17:48,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:17:48,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:17:48,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:48" (1/1) ... [2019-11-15 21:17:49,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:48" (1/1) ... [2019-11-15 21:17:49,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:17:49,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:17:49,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:17:49,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:17:49,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:48" (1/1) ... [2019-11-15 21:17:49,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:48" (1/1) ... [2019-11-15 21:17:49,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:48" (1/1) ... [2019-11-15 21:17:49,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:48" (1/1) ... [2019-11-15 21:17:49,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:48" (1/1) ... [2019-11-15 21:17:49,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:48" (1/1) ... [2019-11-15 21:17:49,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:48" (1/1) ... [2019-11-15 21:17:49,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:17:49,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:17:49,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:17:49,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:17:49,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:17:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:17:49,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:17:49,914 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:17:49,914 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 21:17:49,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:17:49 BoogieIcfgContainer [2019-11-15 21:17:49,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:17:49,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:17:49,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:17:49,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:17:49,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:17:48" (1/3) ... [2019-11-15 21:17:49,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512e659f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:17:49, skipping insertion in model container [2019-11-15 21:17:49,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:17:48" (2/3) ... [2019-11-15 21:17:49,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512e659f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:17:49, skipping insertion in model container [2019-11-15 21:17:49,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:17:49" (3/3) ... [2019-11-15 21:17:49,927 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_square_int.c [2019-11-15 21:17:49,936 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:17:49,943 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 21:17:49,956 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 21:17:49,986 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:17:49,987 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:17:49,987 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:17:49,987 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:17:49,988 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:17:49,989 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:17:49,989 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:17:49,989 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:17:50,007 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-15 21:17:50,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-15 21:17:50,013 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:17:50,014 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-15 21:17:50,015 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:17:50,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:17:50,021 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-11-15 21:17:50,030 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 21:17:50,030 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160749338] [2019-11-15 21:17:50,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-15 21:17:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:17:50,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:17:50,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:17:52,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:17:52,669 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 21:17:52,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:17:52,694 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160749338] [2019-11-15 21:17:52,695 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:17:52,695 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-15 21:17:52,696 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279918241] [2019-11-15 21:17:52,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:17:52,700 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 21:17:52,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:17:52,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:17:52,718 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2019-11-15 21:17:52,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:17:52,743 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-11-15 21:17:52,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:17:52,745 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-11-15 21:17:52,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:17:52,753 INFO L225 Difference]: With dead ends: 12 [2019-11-15 21:17:52,753 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 21:17:52,756 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:17:52,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 21:17:52,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 21:17:52,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 21:17:52,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 21:17:52,784 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-11-15 21:17:52,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:17:52,784 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:17:52,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:17:52,785 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 21:17:52,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 21:17:53,008 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 21:17:53,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 21:17:53,061 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 21:17:53,062 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 21:17:53,062 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 21:17:53,062 INFO L439 ceAbstractionStarter]: At program point L21(lines 10 22) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-15 21:17:53,063 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-11-15 21:17:53,063 INFO L443 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2019-11-15 21:17:53,063 INFO L443 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2019-11-15 21:17:53,064 INFO L439 ceAbstractionStarter]: At program point L8-3(line 8) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-15 21:17:53,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:17:53 BoogieIcfgContainer [2019-11-15 21:17:53,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:17:53,078 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:17:53,079 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:17:53,079 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:17:53,080 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:17:49" (3/4) ... [2019-11-15 21:17:53,084 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 21:17:53,096 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-15 21:17:53,096 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 21:17:53,144 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2ae85d3a-2f76-49cd-a1c3-da1b8dc9e851/bin/uautomizer/witness.graphml [2019-11-15 21:17:53,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:17:53,147 INFO L168 Benchmark]: Toolchain (without parser) took 4478.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 951.0 MB in the beginning and 1.0 GB in the end (delta: -98.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:17:53,147 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:17:53,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.42 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:17:53,149 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -163.9 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:17:53,150 INFO L168 Benchmark]: Boogie Preprocessor took 23.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:17:53,151 INFO L168 Benchmark]: RCFGBuilder took 863.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-11-15 21:17:53,152 INFO L168 Benchmark]: TraceAbstraction took 3161.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2019-11-15 21:17:53,153 INFO L168 Benchmark]: Witness Printer took 65.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:17:53,156 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 248.42 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 110.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -163.9 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 863.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3161.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * Witness Printer took 65.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.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 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: SAFE, OverallTime: 3.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 4 NumberOfNonLiveVariables, 9 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...