./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 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3cf66c963cee9d423d7bbfded96bc288d1ae256e ..................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3cf66c963cee9d423d7bbfded96bc288d1ae256e ............................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:28:31,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:28:31,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:28:31,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:28:31,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:28:31,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:28:31,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:28:31,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:28:31,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:28:31,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:28:31,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:28:31,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:28:31,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:28:31,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:28:31,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:28:31,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:28:31,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:28:31,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:28:31,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:28:31,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:28:31,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:28:31,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:28:31,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:28:31,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:28:31,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:28:31,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:28:31,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:28:31,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:28:31,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:28:31,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:28:31,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:28:31,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:28:31,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:28:31,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:28:31,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:28:31,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:28:31,510 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:28:31,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:28:31,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:28:31,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:28:31,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:28:31,514 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:28:31,544 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:28:31,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:28:31,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:28:31,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:28:31,546 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:28:31,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:28:31,547 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:28:31,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:28:31,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:28:31,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:28:31,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:28:31,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:28:31,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:28:31,549 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:28:31,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:28:31,550 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:28:31,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:28:31,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:28:31,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:28:31,551 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:28:31,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:28:31,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:28:31,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:28:31,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:28:31,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:28:31,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:28:31,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:28:31,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:28:31,553 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:28:31,554 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf66c963cee9d423d7bbfded96bc288d1ae256e [2020-12-01 15:28:31,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:28:31,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:28:31,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:28:31,933 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:28:31,934 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:28:31,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-12-01 15:28:32,039 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/data/18b5ee0da/dc895f0e5b90455680da75bfdb082193/FLAG4a6e9a4a2 [2020-12-01 15:28:32,697 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:28:32,698 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-12-01 15:28:32,713 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/data/18b5ee0da/dc895f0e5b90455680da75bfdb082193/FLAG4a6e9a4a2 [2020-12-01 15:28:33,070 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/data/18b5ee0da/dc895f0e5b90455680da75bfdb082193 [2020-12-01 15:28:33,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:28:33,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:28:33,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:28:33,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:28:33,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:28:33,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:28:33" (1/1) ... [2020-12-01 15:28:33,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd19f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:33, skipping insertion in model container [2020-12-01 15:28:33,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:28:33" (1/1) ... [2020-12-01 15:28:33,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:28:33,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:28:33,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:28:33,368 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:28:33,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:28:33,412 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:28:33,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:33 WrapperNode [2020-12-01 15:28:33,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:28:33,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:28:33,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:28:33,417 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:28:33,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:33" (1/1) ... [2020-12-01 15:28:33,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:33" (1/1) ... [2020-12-01 15:28:33,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:28:33,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:28:33,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:28:33,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:28:33,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:33" (1/1) ... [2020-12-01 15:28:33,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:33" (1/1) ... [2020-12-01 15:28:33,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:33" (1/1) ... [2020-12-01 15:28:33,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:33" (1/1) ... [2020-12-01 15:28:33,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:33" (1/1) ... [2020-12-01 15:28:33,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:33" (1/1) ... [2020-12-01 15:28:33,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:33" (1/1) ... [2020-12-01 15:28:33,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:28:33,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:28:33,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:28:33,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:28:33,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/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 [2020-12-01 15:28:33,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:28:33,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:28:33,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:28:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:28:33,904 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:28:33,904 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 15:28:33,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:28:33 BoogieIcfgContainer [2020-12-01 15:28:33,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:28:33,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:28:33,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:28:33,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:28:33,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:28:33" (1/3) ... [2020-12-01 15:28:33,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c72691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:28:33, skipping insertion in model container [2020-12-01 15:28:33,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:33" (2/3) ... [2020-12-01 15:28:33,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c72691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:28:33, skipping insertion in model container [2020-12-01 15:28:33,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:28:33" (3/3) ... [2020-12-01 15:28:33,928 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2020-12-01 15:28:33,946 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:28:33,949 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:28:33,963 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:28:34,010 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:28:34,011 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:28:34,011 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:28:34,011 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:28:34,012 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:28:34,012 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:28:34,012 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:28:34,012 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:28:34,032 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-01 15:28:34,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 15:28:34,039 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:28:34,040 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-01 15:28:34,041 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:28:34,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:28:34,049 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-12-01 15:28:34,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:28:34,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338116593] [2020-12-01 15:28:34,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:28:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:28:34,240 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:28:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:28:34,286 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:28:34,317 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:28:34,318 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:28:34,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:28:34,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:28:34 BoogieIcfgContainer [2020-12-01 15:28:34,351 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:28:34,354 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:28:34,354 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:28:34,355 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:28:34,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:28:33" (3/4) ... [2020-12-01 15:28:34,360 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:28:34,360 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:28:34,366 INFO L168 Benchmark]: Toolchain (without parser) took 1281.92 ms. Allocated memory was 83.9 MB in the beginning and 113.2 MB in the end (delta: 29.4 MB). Free memory was 56.3 MB in the beginning and 91.4 MB in the end (delta: -35.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:28:34,368 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 83.9 MB. Free memory was 43.7 MB in the beginning and 43.7 MB in the end (delta: 43.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:28:34,370 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.81 ms. Allocated memory is still 83.9 MB. Free memory was 56.1 MB in the beginning and 62.4 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:28:34,372 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.27 ms. Allocated memory is still 83.9 MB. Free memory was 62.4 MB in the beginning and 61.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:28:34,374 INFO L168 Benchmark]: Boogie Preprocessor took 38.81 ms. Allocated memory is still 83.9 MB. Free memory was 61.1 MB in the beginning and 60.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:28:34,375 INFO L168 Benchmark]: RCFGBuilder took 397.28 ms. Allocated memory is still 83.9 MB. Free memory was 60.0 MB in the beginning and 50.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:28:34,378 INFO L168 Benchmark]: TraceAbstraction took 443.61 ms. Allocated memory was 83.9 MB in the beginning and 113.2 MB in the end (delta: 29.4 MB). Free memory was 50.3 MB in the beginning and 91.9 MB in the end (delta: -41.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:28:34,379 INFO L168 Benchmark]: Witness Printer took 6.04 ms. Allocated memory is still 113.2 MB. Free memory was 91.9 MB in the beginning and 91.4 MB in the end (delta: 513.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:28:34,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 83.9 MB. Free memory was 43.7 MB in the beginning and 43.7 MB in the end (delta: 43.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 328.81 ms. Allocated memory is still 83.9 MB. Free memory was 56.1 MB in the beginning and 62.4 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.27 ms. Allocated memory is still 83.9 MB. Free memory was 62.4 MB in the beginning and 61.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.81 ms. Allocated memory is still 83.9 MB. Free memory was 61.1 MB in the beginning and 60.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 397.28 ms. Allocated memory is still 83.9 MB. Free memory was 60.0 MB in the beginning and 50.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 443.61 ms. Allocated memory was 83.9 MB in the beginning and 113.2 MB in the end (delta: 29.4 MB). Free memory was 50.3 MB in the beginning and 91.9 MB in the end (delta: -41.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.04 ms. Allocated memory is still 113.2 MB. Free memory was 91.9 MB in the beginning and 91.4 MB in the end (delta: 513.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: 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 9, overapproximation of to_real at line 10. Possible FailurePath: [L6] unsigned int i, j; [L7] double d; [L9] i=100.0 [L10] d=i [L11] j=d [L12] COND TRUE !(j==100) [L3] __assert_fail("0", "float-no-simp1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 4 NumberOfCodeBlocks, 4 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, ACCELERATED_INTERPOLATION: 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 0.2.0-69874e2 [2020-12-01 15:28:37,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:28:37,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:28:37,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:28:37,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:28:37,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:28:37,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:28:37,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:28:37,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:28:37,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:28:37,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:28:37,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:28:37,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:28:37,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:28:37,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:28:37,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:28:37,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:28:37,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:28:37,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:28:37,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:28:37,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:28:37,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:28:37,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:28:37,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:28:37,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:28:37,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:28:37,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:28:37,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:28:37,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:28:37,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:28:37,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:28:37,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:28:37,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:28:37,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:28:37,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:28:37,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:28:37,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:28:37,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:28:37,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:28:37,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:28:37,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:28:37,622 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 15:28:37,677 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:28:37,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:28:37,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:28:37,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:28:37,683 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:28:37,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:28:37,684 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:28:37,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:28:37,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:28:37,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:28:37,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:28:37,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:28:37,687 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 15:28:37,687 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 15:28:37,687 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:28:37,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:28:37,688 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:28:37,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:28:37,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:28:37,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:28:37,689 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:28:37,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:28:37,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:28:37,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:28:37,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:28:37,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:28:37,691 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 15:28:37,691 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 15:28:37,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:28:37,692 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:28:37,692 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 15:28:37,692 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf66c963cee9d423d7bbfded96bc288d1ae256e [2020-12-01 15:28:38,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:28:38,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:28:38,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:28:38,256 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:28:38,258 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:28:38,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-12-01 15:28:38,338 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/data/940ef0dd6/fe247a40aa944b0cad179c864bac28fc/FLAG270bd640a [2020-12-01 15:28:38,919 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:28:38,919 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-12-01 15:28:38,926 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/data/940ef0dd6/fe247a40aa944b0cad179c864bac28fc/FLAG270bd640a [2020-12-01 15:28:39,276 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/data/940ef0dd6/fe247a40aa944b0cad179c864bac28fc [2020-12-01 15:28:39,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:28:39,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:28:39,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:28:39,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:28:39,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:28:39,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:28:39" (1/1) ... [2020-12-01 15:28:39,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11530a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:39, skipping insertion in model container [2020-12-01 15:28:39,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:28:39" (1/1) ... [2020-12-01 15:28:39,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:28:39,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:28:39,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:28:39,549 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:28:39,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:28:39,586 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:28:39,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:39 WrapperNode [2020-12-01 15:28:39,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:28:39,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:28:39,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:28:39,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:28:39,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:39" (1/1) ... [2020-12-01 15:28:39,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:39" (1/1) ... [2020-12-01 15:28:39,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:28:39,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:28:39,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:28:39,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:28:39,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:39" (1/1) ... [2020-12-01 15:28:39,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:39" (1/1) ... [2020-12-01 15:28:39,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:39" (1/1) ... [2020-12-01 15:28:39,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:39" (1/1) ... [2020-12-01 15:28:39,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:39" (1/1) ... [2020-12-01 15:28:39,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:39" (1/1) ... [2020-12-01 15:28:39,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:39" (1/1) ... [2020-12-01 15:28:39,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:28:39,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:28:39,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:28:39,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:28:39,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/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 [2020-12-01 15:28:39,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:28:39,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:28:39,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 15:28:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:28:41,415 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:28:41,416 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 15:28:41,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:28:41 BoogieIcfgContainer [2020-12-01 15:28:41,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:28:41,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:28:41,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:28:41,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:28:41,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:28:39" (1/3) ... [2020-12-01 15:28:41,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8a68dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:28:41, skipping insertion in model container [2020-12-01 15:28:41,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:39" (2/3) ... [2020-12-01 15:28:41,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8a68dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:28:41, skipping insertion in model container [2020-12-01 15:28:41,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:28:41" (3/3) ... [2020-12-01 15:28:41,429 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2020-12-01 15:28:41,447 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:28:41,451 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:28:41,464 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:28:41,494 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:28:41,494 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:28:41,494 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:28:41,494 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:28:41,495 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:28:41,495 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:28:41,495 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:28:41,495 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:28:41,510 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-01 15:28:41,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 15:28:41,516 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:28:41,517 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-01 15:28:41,517 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:28:41,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:28:41,524 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-12-01 15:28:41,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:28:41,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033754298] [2020-12-01 15:28:41,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/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 [2020-12-01 15:28:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:28:41,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:28:41,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:28:41,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:28:41,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:28:41,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:28:41,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033754298] [2020-12-01 15:28:41,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:28:41,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-12-01 15:28:41,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583702886] [2020-12-01 15:28:41,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:28:41,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:28:41,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:28:41,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:28:41,949 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2020-12-01 15:28:41,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:28:41,987 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-12-01 15:28:41,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:28:41,990 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-12-01 15:28:41,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:28:41,998 INFO L225 Difference]: With dead ends: 12 [2020-12-01 15:28:41,998 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:28:42,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:28:42,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:28:42,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:28:42,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:28:42,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:28:42,032 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-12-01 15:28:42,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:28:42,033 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:28:42,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:28:42,033 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:28:42,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:28:42,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 15:28:42,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:28:42,263 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:28:42,263 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:28:42,264 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:28:42,264 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:28:42,264 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 15:28:42,264 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-01 15:28:42,264 INFO L262 CegarLoopResult]: For program point L4(lines 4 13) no Hoare annotation was computed. [2020-12-01 15:28:42,265 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-01 15:28:42,265 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-12-01 15:28:42,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:28:42 BoogieIcfgContainer [2020-12-01 15:28:42,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:28:42,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:28:42,285 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:28:42,286 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:28:42,286 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:28:41" (3/4) ... [2020-12-01 15:28:42,291 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:28:42,304 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-01 15:28:42,304 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:28:42,305 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 15:28:42,305 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:28:42,346 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a86324de-1962-479e-b119-471c139d0bf3/bin/uautomizer/witness.graphml [2020-12-01 15:28:42,346 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:28:42,349 INFO L168 Benchmark]: Toolchain (without parser) took 3063.93 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 46.1 MB in the beginning and 46.1 MB in the end (delta: -16.4 kB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:28:42,349 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 65.0 MB. Free memory is still 47.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:28:42,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.98 ms. Allocated memory is still 65.0 MB. Free memory was 45.9 MB in the beginning and 36.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:28:42,351 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.88 ms. Allocated memory is still 65.0 MB. Free memory was 36.4 MB in the beginning and 35.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:28:42,352 INFO L168 Benchmark]: Boogie Preprocessor took 88.37 ms. Allocated memory is still 65.0 MB. Free memory was 35.0 MB in the beginning and 49.1 MB in the end (delta: -14.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:28:42,353 INFO L168 Benchmark]: RCFGBuilder took 1698.14 ms. Allocated memory is still 65.0 MB. Free memory was 48.9 MB in the beginning and 38.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:28:42,354 INFO L168 Benchmark]: TraceAbstraction took 855.13 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 38.4 MB in the beginning and 48.2 MB in the end (delta: -9.8 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:28:42,355 INFO L168 Benchmark]: Witness Printer took 61.24 ms. Allocated memory is still 79.7 MB. Free memory was 48.2 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:28:42,359 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 65.0 MB. Free memory is still 47.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 301.98 ms. Allocated memory is still 65.0 MB. Free memory was 45.9 MB in the beginning and 36.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.88 ms. Allocated memory is still 65.0 MB. Free memory was 36.4 MB in the beginning and 35.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.37 ms. Allocated memory is still 65.0 MB. Free memory was 35.0 MB in the beginning and 49.1 MB in the end (delta: -14.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1698.14 ms. Allocated memory is still 65.0 MB. Free memory was 48.9 MB in the beginning and 38.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 855.13 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 38.4 MB in the beginning and 48.2 MB in the end (delta: -9.8 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Witness Printer took 61.24 ms. Allocated memory is still 79.7 MB. Free memory was 48.2 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 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, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 1 QuantifiedInterpolants, 57 SizeOfPredicates, 5 NumberOfNonLiveVariables, 27 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...