./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/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 5fc76096080d06d307c9a613c10bbb5b03d622cd .......................................................................................................................................................................................................................... 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_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/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 5fc76096080d06d307c9a613c10bbb5b03d622cd ................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:01:12,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:01:12,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:01:12,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:01:12,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:01:12,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:01:12,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:01:12,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:01:12,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:01:12,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:01:12,491 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:01:12,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:01:12,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:01:12,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:01:12,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:01:12,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:01:12,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:01:12,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:01:12,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:01:12,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:01:12,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:01:12,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:01:12,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:01:12,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:01:12,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:01:12,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:01:12,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:01:12,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:01:12,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:01:12,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:01:12,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:01:12,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:01:12,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:01:12,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:01:12,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:01:12,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:01:12,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:01:12,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:01:12,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:01:12,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:01:12,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:01:12,509 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:01:12,519 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:01:12,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:01:12,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:01:12,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:01:12,520 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:01:12,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:01:12,520 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:01:12,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:01:12,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:01:12,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:01:12,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:01:12,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:01:12,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:01:12,521 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:01:12,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:01:12,521 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:01:12,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:01:12,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:01:12,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:01:12,522 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:01:12,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:01:12,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:01:12,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:01:12,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:01:12,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:01:12,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:01:12,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:01:12,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:01:12,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:01:12,523 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_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/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 -> 5fc76096080d06d307c9a613c10bbb5b03d622cd [2019-12-07 18:01:12,623 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:01:12,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:01:12,637 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:01:12,638 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:01:12,638 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:01:12,639 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2019-12-07 18:01:12,677 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/data/b91e6fe64/448035c9be774b60b6f9e223035618cd/FLAG3cd7ae918 [2019-12-07 18:01:13,088 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:01:13,089 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2019-12-07 18:01:13,092 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/data/b91e6fe64/448035c9be774b60b6f9e223035618cd/FLAG3cd7ae918 [2019-12-07 18:01:13,101 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/data/b91e6fe64/448035c9be774b60b6f9e223035618cd [2019-12-07 18:01:13,103 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:01:13,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:01:13,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:01:13,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:01:13,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:01:13,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:01:13" (1/1) ... [2019-12-07 18:01:13,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fc16ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:13, skipping insertion in model container [2019-12-07 18:01:13,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:01:13" (1/1) ... [2019-12-07 18:01:13,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:01:13,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:01:13,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:01:13,221 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:01:13,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:01:13,270 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:01:13,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:13 WrapperNode [2019-12-07 18:01:13,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:01:13,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:01:13,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:01:13,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:01:13,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:13" (1/1) ... [2019-12-07 18:01:13,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:13" (1/1) ... [2019-12-07 18:01:13,290 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:01:13,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:01:13,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:01:13,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:01:13,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:13" (1/1) ... [2019-12-07 18:01:13,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:13" (1/1) ... [2019-12-07 18:01:13,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:13" (1/1) ... [2019-12-07 18:01:13,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:13" (1/1) ... [2019-12-07 18:01:13,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:13" (1/1) ... [2019-12-07 18:01:13,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:13" (1/1) ... [2019-12-07 18:01:13,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:13" (1/1) ... [2019-12-07 18:01:13,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:01:13,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:01:13,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:01:13,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:01:13,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/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 [2019-12-07 18:01:13,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:01:13,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:01:13,410 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:01:13,411 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 18:01:13,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:01:13 BoogieIcfgContainer [2019-12-07 18:01:13,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:01:13,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:01:13,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:01:13,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:01:13,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:01:13" (1/3) ... [2019-12-07 18:01:13,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114ff1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:01:13, skipping insertion in model container [2019-12-07 18:01:13,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:13" (2/3) ... [2019-12-07 18:01:13,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114ff1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:01:13, skipping insertion in model container [2019-12-07 18:01:13,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:01:13" (3/3) ... [2019-12-07 18:01:13,416 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2019-12-07 18:01:13,422 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:01:13,426 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:01:13,433 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:01:13,447 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:01:13,447 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:01:13,447 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:01:13,447 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:01:13,447 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:01:13,447 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:01:13,447 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:01:13,448 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:01:13,456 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-12-07 18:01:13,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 18:01:13,459 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:01:13,460 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 18:01:13,460 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:01:13,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:01:13,464 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-12-07 18:01:13,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:01:13,470 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484979954] [2019-12-07 18:01:13,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:01:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:01:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:01:13,535 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:01:13,535 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:01:13,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:01:13 BoogieIcfgContainer [2019-12-07 18:01:13,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:01:13,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:01:13,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:01:13,546 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:01:13,546 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:01:13" (3/4) ... [2019-12-07 18:01:13,548 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:01:13,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:01:13,550 INFO L168 Benchmark]: Toolchain (without parser) took 446.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -151.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:01:13,551 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:01:13,551 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:01:13,552 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.65 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. [2019-12-07 18:01:13,552 INFO L168 Benchmark]: Boogie Preprocessor took 10.30 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. [2019-12-07 18:01:13,553 INFO L168 Benchmark]: RCFGBuilder took 110.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:01:13,553 INFO L168 Benchmark]: TraceAbstraction took 133.27 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. [2019-12-07 18:01:13,553 INFO L168 Benchmark]: Witness Printer took 2.93 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. [2019-12-07 18:01:13,556 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 166.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.65 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 10.30 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 110.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 133.27 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 2.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 7, overapproximation of to_real at line 8. Possible FailurePath: [L4] unsigned int i, j; [L5] double d; [L7] i=100.0 [L8] d=i [L9] j=d [L10] COND TRUE !(j==100) [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 18:01:14,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:01:14,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:01:14,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:01:14,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:01:14,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:01:14,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:01:14,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:01:14,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:01:14,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:01:14,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:01:14,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:01:14,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:01:14,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:01:14,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:01:14,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:01:14,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:01:14,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:01:14,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:01:14,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:01:14,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:01:14,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:01:14,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:01:14,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:01:14,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:01:14,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:01:14,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:01:14,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:01:14,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:01:14,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:01:14,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:01:14,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:01:14,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:01:14,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:01:14,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:01:14,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:01:14,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:01:14,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:01:14,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:01:14,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:01:14,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:01:14,985 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 18:01:14,995 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:01:14,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:01:14,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:01:14,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:01:14,997 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:01:14,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:01:14,997 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:01:14,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:01:14,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:01:14,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:01:14,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:01:14,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:01:14,998 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 18:01:14,998 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 18:01:14,998 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:01:14,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:01:14,998 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:01:14,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:01:14,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:01:14,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:01:14,999 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:01:14,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:01:14,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:01:14,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:01:14,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:01:14,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:01:14,999 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 18:01:15,000 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 18:01:15,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:01:15,000 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:01:15,000 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 18:01:15,000 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_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/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 -> 5fc76096080d06d307c9a613c10bbb5b03d622cd [2019-12-07 18:01:15,161 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:01:15,169 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:01:15,171 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:01:15,172 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:01:15,172 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:01:15,173 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2019-12-07 18:01:15,211 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/data/e732f9a99/602080a9f4474c5ab011a23f64322928/FLAG0e9722f67 [2019-12-07 18:01:15,681 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:01:15,681 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2019-12-07 18:01:15,685 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/data/e732f9a99/602080a9f4474c5ab011a23f64322928/FLAG0e9722f67 [2019-12-07 18:01:15,694 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/data/e732f9a99/602080a9f4474c5ab011a23f64322928 [2019-12-07 18:01:15,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:01:15,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:01:15,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:01:15,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:01:15,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:01:15,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:01:15" (1/1) ... [2019-12-07 18:01:15,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eecc96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:15, skipping insertion in model container [2019-12-07 18:01:15,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:01:15" (1/1) ... [2019-12-07 18:01:15,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:01:15,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:01:15,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:01:15,826 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:01:15,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:01:15,845 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:01:15,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:15 WrapperNode [2019-12-07 18:01:15,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:01:15,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:01:15,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:01:15,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:01:15,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:15" (1/1) ... [2019-12-07 18:01:15,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:15" (1/1) ... [2019-12-07 18:01:15,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:01:15,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:01:15,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:01:15,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:01:15,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:15" (1/1) ... [2019-12-07 18:01:15,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:15" (1/1) ... [2019-12-07 18:01:15,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:15" (1/1) ... [2019-12-07 18:01:15,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:15" (1/1) ... [2019-12-07 18:01:15,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:15" (1/1) ... [2019-12-07 18:01:15,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:15" (1/1) ... [2019-12-07 18:01:15,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:15" (1/1) ... [2019-12-07 18:01:15,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:01:15,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:01:15,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:01:15,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:01:15,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/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 [2019-12-07 18:01:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:01:15,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:01:16,185 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:01:16,185 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 18:01:16,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:01:16 BoogieIcfgContainer [2019-12-07 18:01:16,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:01:16,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:01:16,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:01:16,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:01:16,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:01:15" (1/3) ... [2019-12-07 18:01:16,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5da9da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:01:16, skipping insertion in model container [2019-12-07 18:01:16,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:01:15" (2/3) ... [2019-12-07 18:01:16,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5da9da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:01:16, skipping insertion in model container [2019-12-07 18:01:16,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:01:16" (3/3) ... [2019-12-07 18:01:16,190 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2019-12-07 18:01:16,196 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:01:16,200 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:01:16,209 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:01:16,226 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:01:16,226 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:01:16,226 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:01:16,226 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:01:16,226 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:01:16,226 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:01:16,226 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:01:16,227 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:01:16,235 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-12-07 18:01:16,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 18:01:16,239 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:01:16,239 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 18:01:16,240 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:01:16,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:01:16,243 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-12-07 18:01:16,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:01:16,251 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91368653] [2019-12-07 18:01:16,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/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 [2019-12-07 18:01:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:01:16,295 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 18:01:16,298 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:01:16,757 WARN L860 $PredicateComparison]: unable to prove that (exists ((currentRoundingMode RoundingMode)) (= ((_ fp.to_ubv 32) roundTowardZero ((_ to_fp_unsigned 11 53) currentRoundingMode ((_ fp.to_ubv 32) roundTowardZero ((_ to_fp 11 53) currentRoundingMode 100.0)))) c_ULTIMATE.start_main_~j~0)) is different from true [2019-12-07 18:01:16,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:01:16,763 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:01:16,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:01:16,779 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91368653] [2019-12-07 18:01:16,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:01:16,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 18:01:16,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777279610] [2019-12-07 18:01:16,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:01:16,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:01:16,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:01:16,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2019-12-07 18:01:16,794 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2019-12-07 18:01:16,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:01:16,815 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-07 18:01:16,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:01:16,816 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-12-07 18:01:16,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:01:16,821 INFO L225 Difference]: With dead ends: 11 [2019-12-07 18:01:16,821 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:01:16,823 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2019-12-07 18:01:16,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:01:16,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:01:16,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:01:16,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:01:16,839 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-12-07 18:01:16,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:01:16,840 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:01:16,840 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:01:16,840 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:01:16,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:01:17,041 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 18:01:17,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:01:17,052 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:01:17,052 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 18:01:17,053 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:01:17,053 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:01:17,053 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-12-07 18:01:17,053 INFO L246 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2019-12-07 18:01:17,054 INFO L246 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2019-12-07 18:01:17,054 INFO L246 CegarLoopResult]: For program point L2(lines 2 11) no Hoare annotation was computed. [2019-12-07 18:01:17,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:01:17 BoogieIcfgContainer [2019-12-07 18:01:17,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:01:17,063 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:01:17,063 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:01:17,064 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:01:17,064 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:01:16" (3/4) ... [2019-12-07 18:01:17,070 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:01:17,083 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 18:01:17,084 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 18:01:17,084 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 18:01:17,110 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d8c379fc-7d9c-4079-9c6c-b0bfdddc5faa/bin/uautomizer/witness.graphml [2019-12-07 18:01:17,110 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:01:17,112 INFO L168 Benchmark]: Toolchain (without parser) took 1414.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -127.7 MB). Peak memory consumption was 3.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:01:17,112 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:01:17,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.61 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:01:17,113 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:01:17,113 INFO L168 Benchmark]: Boogie Preprocessor took 14.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:01:17,114 INFO L168 Benchmark]: RCFGBuilder took 273.68 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: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:01:17,114 INFO L168 Benchmark]: TraceAbstraction took 876.17 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:01:17,114 INFO L168 Benchmark]: Witness Printer took 47.14 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. [2019-12-07 18:01:17,116 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 148.61 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 273.68 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: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 876.17 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Witness Printer took 47.14 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: 10]: 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 1 procedures, 8 locations, 1 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s 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, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 1 QuantifiedInterpolants, 57 SizeOfPredicates, 5 NumberOfNonLiveVariables, 8 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...