./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/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_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/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 0.1.24-cad4683 [2019-11-15 23:38:26,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:38:26,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:38:26,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:38:26,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:38:26,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:38:26,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:38:26,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:38:26,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:38:26,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:38:26,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:38:26,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:38:26,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:38:26,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:38:26,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:38:26,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:38:26,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:38:26,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:38:26,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:38:26,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:38:26,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:38:26,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:38:26,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:38:26,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:38:26,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:38:26,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:38:26,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:38:26,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:38:26,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:38:26,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:38:26,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:38:26,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:38:26,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:38:26,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:38:26,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:38:26,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:38:26,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:38:26,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:38:26,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:38:26,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:38:26,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:38:26,351 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:38:26,374 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:38:26,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:38:26,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:38:26,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:38:26,382 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:38:26,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:38:26,382 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:38:26,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:38:26,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:38:26,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:38:26,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:38:26,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:38:26,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:38:26,383 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:38:26,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:38:26,384 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:38:26,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:38:26,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:38:26,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:38:26,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:38:26,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:38:26,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:38:26,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:38:26,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:38:26,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:38:26,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:38:26,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:38:26,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:38:26,387 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_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/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 [2019-11-15 23:38:26,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:38:26,420 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:38:26,423 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:38:26,425 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:38:26,425 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:38:26,427 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2019-11-15 23:38:26,485 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/data/48a46a9c9/647c4fd9ec5940628a759499f638fc6d/FLAG56db93074 [2019-11-15 23:38:26,880 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:38:26,880 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2019-11-15 23:38:26,886 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/data/48a46a9c9/647c4fd9ec5940628a759499f638fc6d/FLAG56db93074 [2019-11-15 23:38:27,315 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/data/48a46a9c9/647c4fd9ec5940628a759499f638fc6d [2019-11-15 23:38:27,318 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:38:27,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:38:27,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:38:27,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:38:27,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:38:27,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:38:27" (1/1) ... [2019-11-15 23:38:27,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a6ff451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:27, skipping insertion in model container [2019-11-15 23:38:27,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:38:27" (1/1) ... [2019-11-15 23:38:27,335 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:38:27,349 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:38:27,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:38:27,542 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:38:27,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:38:27,568 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:38:27,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:27 WrapperNode [2019-11-15 23:38:27,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:38:27,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:38:27,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:38:27,569 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:38:27,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:27" (1/1) ... [2019-11-15 23:38:27,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:27" (1/1) ... [2019-11-15 23:38:27,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:38:27,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:38:27,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:38:27,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:38:27,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:27" (1/1) ... [2019-11-15 23:38:27,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:27" (1/1) ... [2019-11-15 23:38:27,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:27" (1/1) ... [2019-11-15 23:38:27,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:27" (1/1) ... [2019-11-15 23:38:27,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:27" (1/1) ... [2019-11-15 23:38:27,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:27" (1/1) ... [2019-11-15 23:38:27,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:27" (1/1) ... [2019-11-15 23:38:27,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:38:27,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:38:27,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:38:27,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:38:27,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/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 23:38:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:38:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:38:27,818 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:38:27,818 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-15 23:38:27,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:38:27 BoogieIcfgContainer [2019-11-15 23:38:27,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:38:27,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:38:27,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:38:27,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:38:27,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:38:27" (1/3) ... [2019-11-15 23:38:27,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbf1065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:38:27, skipping insertion in model container [2019-11-15 23:38:27,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:27" (2/3) ... [2019-11-15 23:38:27,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbf1065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:38:27, skipping insertion in model container [2019-11-15 23:38:27,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:38:27" (3/3) ... [2019-11-15 23:38:27,836 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2019-11-15 23:38:27,848 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:38:27,859 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:38:27,873 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:38:27,891 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:38:27,891 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:38:27,892 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:38:27,892 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:38:27,892 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:38:27,892 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:38:27,892 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:38:27,892 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:38:27,903 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-11-15 23:38:27,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-15 23:38:27,908 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:38:27,909 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-15 23:38:27,910 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:38:27,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:38:27,916 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-15 23:38:27,924 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:38:27,924 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348602240] [2019-11-15 23:38:27,924 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:38:27,925 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:38:27,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:38:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:38:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:38:28,023 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:38:28,023 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:38:28,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:38:28 BoogieIcfgContainer [2019-11-15 23:38:28,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:38:28,039 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:38:28,039 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:38:28,040 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:38:28,040 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:38:27" (3/4) ... [2019-11-15 23:38:28,043 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:38:28,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:38:28,048 INFO L168 Benchmark]: Toolchain (without parser) took 725.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -112.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:38:28,049 INFO L168 Benchmark]: CDTParser took 0.26 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 23:38:28,050 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -143.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:38:28,051 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.21 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:38:28,053 INFO L168 Benchmark]: Boogie Preprocessor took 17.04 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:38:28,054 INFO L168 Benchmark]: RCFGBuilder took 209.67 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: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:38:28,054 INFO L168 Benchmark]: TraceAbstraction took 218.62 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: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:38:28,055 INFO L168 Benchmark]: Witness Printer took 4.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:38:28,064 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 248.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -143.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.21 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.04 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 209.67 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: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 218.62 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: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.41 ms. Allocated memory is still 1.1 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: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 23:38:30,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:38:30,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:38:30,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:38:30,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:38:30,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:38:30,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:38:30,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:38:30,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:38:30,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:38:30,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:38:30,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:38:30,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:38:30,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:38:30,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:38:30,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:38:30,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:38:30,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:38:30,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:38:30,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:38:30,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:38:30,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:38:30,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:38:30,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:38:30,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:38:30,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:38:30,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:38:30,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:38:30,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:38:30,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:38:30,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:38:30,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:38:30,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:38:30,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:38:30,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:38:30,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:38:30,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:38:30,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:38:30,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:38:30,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:38:30,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:38:30,346 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 23:38:30,361 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:38:30,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:38:30,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:38:30,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:38:30,363 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:38:30,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:38:30,363 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:38:30,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:38:30,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:38:30,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:38:30,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:38:30,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:38:30,365 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 23:38:30,365 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 23:38:30,365 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:38:30,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:38:30,366 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:38:30,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:38:30,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:38:30,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:38:30,367 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:38:30,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:38:30,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:38:30,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:38:30,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:38:30,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:38:30,368 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 23:38:30,368 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 23:38:30,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:38:30,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 23:38:30,369 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_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/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 [2019-11-15 23:38:30,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:38:30,412 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:38:30,420 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:38:30,424 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:38:30,425 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:38:30,426 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2019-11-15 23:38:30,491 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/data/ac715093b/a74f5dc62f344235bb6c062f71348276/FLAG69b3374d0 [2019-11-15 23:38:30,858 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:38:30,859 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2019-11-15 23:38:30,864 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/data/ac715093b/a74f5dc62f344235bb6c062f71348276/FLAG69b3374d0 [2019-11-15 23:38:31,325 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/data/ac715093b/a74f5dc62f344235bb6c062f71348276 [2019-11-15 23:38:31,328 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:38:31,330 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:38:31,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:38:31,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:38:31,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:38:31,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:38:31" (1/1) ... [2019-11-15 23:38:31,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fd78f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:31, skipping insertion in model container [2019-11-15 23:38:31,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:38:31" (1/1) ... [2019-11-15 23:38:31,343 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:38:31,353 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:38:31,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:38:31,494 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:38:31,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:38:31,521 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:38:31,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:31 WrapperNode [2019-11-15 23:38:31,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:38:31,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:38:31,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:38:31,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:38:31,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:31" (1/1) ... [2019-11-15 23:38:31,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:31" (1/1) ... [2019-11-15 23:38:31,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:38:31,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:38:31,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:38:31,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:38:31,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:31" (1/1) ... [2019-11-15 23:38:31,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:31" (1/1) ... [2019-11-15 23:38:31,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:31" (1/1) ... [2019-11-15 23:38:31,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:31" (1/1) ... [2019-11-15 23:38:31,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:31" (1/1) ... [2019-11-15 23:38:31,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:31" (1/1) ... [2019-11-15 23:38:31,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:31" (1/1) ... [2019-11-15 23:38:31,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:38:31,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:38:31,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:38:31,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:38:31,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/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 23:38:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:38:31,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:38:31,828 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:38:31,828 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-15 23:38:31,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:38:31 BoogieIcfgContainer [2019-11-15 23:38:31,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:38:31,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:38:31,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:38:31,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:38:31,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:38:31" (1/3) ... [2019-11-15 23:38:31,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@185c127a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:38:31, skipping insertion in model container [2019-11-15 23:38:31,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:38:31" (2/3) ... [2019-11-15 23:38:31,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@185c127a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:38:31, skipping insertion in model container [2019-11-15 23:38:31,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:38:31" (3/3) ... [2019-11-15 23:38:31,837 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2019-11-15 23:38:31,845 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:38:31,852 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:38:31,860 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:38:31,881 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:38:31,881 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:38:31,881 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:38:31,882 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:38:31,882 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:38:31,882 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:38:31,882 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:38:31,882 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:38:31,897 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-11-15 23:38:31,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-15 23:38:31,902 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:38:31,903 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-15 23:38:31,904 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:38:31,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:38:31,909 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-15 23:38:31,917 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:38:31,917 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701650075] [2019-11-15 23:38:31,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/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 23:38:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:38:31,976 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:38:31,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:38:32,025 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 23:38:32,025 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:38:32,033 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 23:38:32,034 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701650075] [2019-11-15 23:38:32,035 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:38:32,035 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 23:38:32,035 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317983520] [2019-11-15 23:38:32,040 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 23:38:32,041 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:38:32,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:38:32,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:38:32,067 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-11-15 23:38:32,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:38:32,096 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2019-11-15 23:38:32,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:38:32,106 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-15 23:38:32,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:38:32,115 INFO L225 Difference]: With dead ends: 10 [2019-11-15 23:38:32,128 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:38:32,131 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:38:32,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:38:32,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:38:32,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:38:32,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:38:32,182 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-11-15 23:38:32,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:38:32,183 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:38:32,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 23:38:32,183 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:38:32,183 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:38:32,396 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 23:38:32,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 23:38:32,403 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 23:38:32,403 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 23:38:32,404 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-11-15 23:38:32,404 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 23:38:32,404 INFO L443 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2019-11-15 23:38:32,404 INFO L443 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2019-11-15 23:38:32,404 INFO L443 ceAbstractionStarter]: For program point L2(lines 2 11) no Hoare annotation was computed. [2019-11-15 23:38:32,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:38:32 BoogieIcfgContainer [2019-11-15 23:38:32,407 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:38:32,408 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:38:32,408 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:38:32,408 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:38:32,409 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:38:31" (3/4) ... [2019-11-15 23:38:32,412 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:38:32,423 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 23:38:32,423 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 23:38:32,462 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a4eb01f6-5d05-4342-8d4a-cf926bf6f94a/bin/uautomizer/witness.graphml [2019-11-15 23:38:32,462 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:38:32,465 INFO L168 Benchmark]: Toolchain (without parser) took 1133.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:38:32,465 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:38:32,466 INFO L168 Benchmark]: CACSL2BoogieTranslator took 190.61 ms. Allocated memory is still 1.0 GB. Free memory was 947.0 MB in the beginning and 936.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:38:32,466 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 936.2 MB in the beginning and 1.2 GB in the end (delta: -215.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:38:32,467 INFO L168 Benchmark]: Boogie Preprocessor took 24.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:38:32,468 INFO L168 Benchmark]: RCFGBuilder took 189.39 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:38:32,468 INFO L168 Benchmark]: TraceAbstraction took 577.01 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:38:32,469 INFO L168 Benchmark]: Witness Printer took 54.80 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 23:38:32,472 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 190.61 ms. Allocated memory is still 1.0 GB. Free memory was 947.0 MB in the beginning and 936.2 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 92.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 936.2 MB in the beginning and 1.2 GB in the end (delta: -215.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 189.39 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 577.01 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * Witness Printer took 54.80 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, 7 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 3 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 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: 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, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 3 NumberOfNonLiveVariables, 7 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...