./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/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 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd .................................................................................................................................................................................................................................. 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_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/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 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd ............................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:08:07,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:08:07,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:08:07,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:08:07,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:08:07,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:08:07,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:08:07,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:08:07,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:08:07,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:08:07,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:08:07,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:08:07,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:08:07,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:08:07,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:08:07,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:08:07,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:08:07,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:08:07,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:08:07,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:08:07,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:08:07,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:08:07,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:08:07,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:08:07,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:08:07,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:08:07,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:08:07,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:08:07,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:08:07,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:08:07,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:08:07,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:08:07,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:08:07,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:08:07,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:08:07,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:08:07,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:08:07,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:08:07,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:08:07,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:08:07,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:08:07,660 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:08:07,703 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:08:07,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:08:07,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:08:07,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:08:07,706 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:08:07,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:08:07,707 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:08:07,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:08:07,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:08:07,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:08:07,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:08:07,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:08:07,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:08:07,709 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:08:07,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:08:07,709 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:08:07,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:08:07,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:08:07,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:08:07,710 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:08:07,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:08:07,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:08:07,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:08:07,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:08:07,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:08:07,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:08:07,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:08:07,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:08:07,712 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:08:07,712 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_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd [2020-11-28 03:08:08,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:08:08,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:08:08,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:08:08,031 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:08:08,032 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:08:08,033 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2020-11-28 03:08:08,139 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/data/18b48bded/f420bfa3707d41f8ac1207db6c24f8d3/FLAG900d6045e [2020-11-28 03:08:08,722 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:08:08,723 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2020-11-28 03:08:08,735 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/data/18b48bded/f420bfa3707d41f8ac1207db6c24f8d3/FLAG900d6045e [2020-11-28 03:08:09,100 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/data/18b48bded/f420bfa3707d41f8ac1207db6c24f8d3 [2020-11-28 03:08:09,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:08:09,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:08:09,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:09,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:08:09,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:08:09,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32645cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09, skipping insertion in model container [2020-11-28 03:08:09,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:08:09,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:08:09,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:09,362 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:08:09,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:09,402 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:08:09,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09 WrapperNode [2020-11-28 03:08:09,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:09,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:09,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:08:09,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:08:09,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:09,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:08:09,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:08:09,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:08:09,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... [2020-11-28 03:08:09,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:08:09,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:08:09,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:08:09,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:08:09,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/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 [2020-11-28 03:08:09,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:08:09,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:08:09,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:08:09,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:08:09,846 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:08:09,847 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 03:08:09,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:09 BoogieIcfgContainer [2020-11-28 03:08:09,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:08:09,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:08:09,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:08:09,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:08:09,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:08:09" (1/3) ... [2020-11-28 03:08:09,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c30783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:09, skipping insertion in model container [2020-11-28 03:08:09,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:09" (2/3) ... [2020-11-28 03:08:09,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c30783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:09, skipping insertion in model container [2020-11-28 03:08:09,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:09" (3/3) ... [2020-11-28 03:08:09,878 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2020-11-28 03:08:09,891 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:08:09,911 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:08:09,925 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:08:09,995 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:08:09,996 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:08:09,996 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:08:09,996 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:08:09,996 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:08:09,996 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:08:09,997 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:08:09,997 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:08:10,011 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-11-28 03:08:10,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:08:10,016 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:10,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:08:10,018 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:10,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:10,025 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-11-28 03:08:10,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:10,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996969209] [2020-11-28 03:08:10,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:10,198 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:10,239 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:10,271 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:08:10,272 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:08:10,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:08:10,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:08:10 BoogieIcfgContainer [2020-11-28 03:08:10,306 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:08:10,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:08:10,310 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:08:10,310 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:08:10,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:09" (3/4) ... [2020-11-28 03:08:10,315 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:08:10,315 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:08:10,321 INFO L168 Benchmark]: Toolchain (without parser) took 1209.61 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 57.3 MB in the beginning and 85.6 MB in the end (delta: -28.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:10,322 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 88.1 MB. Free memory is still 45.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:10,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.96 ms. Allocated memory is still 88.1 MB. Free memory was 57.1 MB in the beginning and 65.1 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:10,326 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.60 ms. Allocated memory is still 88.1 MB. Free memory was 65.1 MB in the beginning and 63.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:10,328 INFO L168 Benchmark]: Boogie Preprocessor took 33.71 ms. Allocated memory is still 88.1 MB. Free memory was 63.8 MB in the beginning and 62.8 MB in the end (delta: 943.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:10,329 INFO L168 Benchmark]: RCFGBuilder took 362.68 ms. Allocated memory is still 88.1 MB. Free memory was 62.8 MB in the beginning and 53.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:10,331 INFO L168 Benchmark]: TraceAbstraction took 455.69 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 52.9 MB in the beginning and 85.6 MB in the end (delta: -32.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:10,332 INFO L168 Benchmark]: Witness Printer took 5.40 ms. Allocated memory is still 107.0 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:10,345 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 88.1 MB. Free memory is still 45.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 296.96 ms. Allocated memory is still 88.1 MB. Free memory was 57.1 MB in the beginning and 65.1 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.60 ms. Allocated memory is still 88.1 MB. Free memory was 65.1 MB in the beginning and 63.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.71 ms. Allocated memory is still 88.1 MB. Free memory was 63.8 MB in the beginning and 62.8 MB in the end (delta: 943.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 362.68 ms. Allocated memory is still 88.1 MB. Free memory was 62.8 MB in the beginning and 53.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 455.69 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 52.9 MB in the beginning and 85.6 MB in the end (delta: -32.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.40 ms. Allocated memory is still 107.0 MB. Free memory is still 85.6 MB. 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 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L8] float fs1=2.0f/6.0f; [L9] float fs2=fs1*6.0f; [L10] COND TRUE !((int)fs2==2) [L3] __assert_fail("0", "float-no-simp3.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: 0.2s, 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-a4ecdab [2020-11-28 03:08:13,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:08:13,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:08:13,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:08:13,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:08:13,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:08:13,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:08:13,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:08:13,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:08:13,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:08:13,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:08:13,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:08:13,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:08:13,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:08:13,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:08:13,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:08:13,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:08:13,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:08:13,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:08:13,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:08:13,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:08:13,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:08:13,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:08:13,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:08:13,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:08:13,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:08:13,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:08:13,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:08:13,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:08:13,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:08:13,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:08:13,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:08:13,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:08:13,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:08:13,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:08:13,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:08:13,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:08:13,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:08:13,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:08:13,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:08:13,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:08:13,157 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-28 03:08:13,185 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:08:13,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:08:13,187 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:08:13,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:08:13,190 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:08:13,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:08:13,192 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:08:13,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:08:13,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:08:13,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:08:13,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:08:13,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:08:13,197 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 03:08:13,198 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 03:08:13,198 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:08:13,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:08:13,199 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:08:13,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:08:13,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:08:13,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:08:13,200 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:08:13,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:08:13,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:08:13,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:08:13,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:08:13,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:08:13,202 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 03:08:13,202 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 03:08:13,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:08:13,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:08:13,203 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:08:13,203 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_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd [2020-11-28 03:08:13,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:08:13,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:08:13,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:08:13,650 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:08:13,650 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:08:13,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2020-11-28 03:08:13,721 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/data/d40a829c7/645457f3823347fb8a227cd683d06112/FLAG5a59e8615 [2020-11-28 03:08:14,364 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:08:14,365 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2020-11-28 03:08:14,372 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/data/d40a829c7/645457f3823347fb8a227cd683d06112/FLAG5a59e8615 [2020-11-28 03:08:14,714 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/data/d40a829c7/645457f3823347fb8a227cd683d06112 [2020-11-28 03:08:14,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:08:14,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:08:14,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:14,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:08:14,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:08:14,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:14" (1/1) ... [2020-11-28 03:08:14,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17788f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:14, skipping insertion in model container [2020-11-28 03:08:14,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:14" (1/1) ... [2020-11-28 03:08:14,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:08:14,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:08:14,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:14,955 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:08:14,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:14,990 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:08:14,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:14 WrapperNode [2020-11-28 03:08:14,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:14,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:14,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:08:14,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:08:15,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:14" (1/1) ... [2020-11-28 03:08:15,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:14" (1/1) ... [2020-11-28 03:08:15,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:15,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:08:15,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:08:15,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:08:15,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:14" (1/1) ... [2020-11-28 03:08:15,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:14" (1/1) ... [2020-11-28 03:08:15,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:14" (1/1) ... [2020-11-28 03:08:15,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:14" (1/1) ... [2020-11-28 03:08:15,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:14" (1/1) ... [2020-11-28 03:08:15,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:14" (1/1) ... [2020-11-28 03:08:15,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:14" (1/1) ... [2020-11-28 03:08:15,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:08:15,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:08:15,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:08:15,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:08:15,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/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 [2020-11-28 03:08:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:08:15,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:08:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 03:08:15,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:08:15,670 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:08:15,671 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 03:08:15,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:15 BoogieIcfgContainer [2020-11-28 03:08:15,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:08:15,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:08:15,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:08:15,678 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:08:15,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:08:14" (1/3) ... [2020-11-28 03:08:15,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46fac253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:15, skipping insertion in model container [2020-11-28 03:08:15,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:14" (2/3) ... [2020-11-28 03:08:15,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46fac253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:15, skipping insertion in model container [2020-11-28 03:08:15,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:15" (3/3) ... [2020-11-28 03:08:15,682 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2020-11-28 03:08:15,695 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:08:15,719 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:08:15,752 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:08:15,815 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:08:15,815 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:08:15,816 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:08:15,816 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:08:15,816 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:08:15,816 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:08:15,817 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:08:15,817 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:08:15,845 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-11-28 03:08:15,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:08:15,867 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:15,868 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:08:15,868 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:15,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:15,876 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-11-28 03:08:15,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:08:15,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120065592] [2020-11-28 03:08:15,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/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 [2020-11-28 03:08:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:16,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:08:16,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:08:16,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:16,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:08:16,740 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-11-28 03:08:16,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:16,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120065592] [2020-11-28 03:08:16,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:16,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-28 03:08:16,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661817647] [2020-11-28 03:08:16,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:08:16,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:08:16,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:08:16,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:08:16,772 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 6 states. [2020-11-28 03:08:16,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:16,885 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-11-28 03:08:16,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:08:16,889 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-11-28 03:08:16,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:16,897 INFO L225 Difference]: With dead ends: 12 [2020-11-28 03:08:16,898 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:08:16,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:08:16,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:08:16,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:08:16,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:08:16,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:08:16,934 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-28 03:08:16,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:16,935 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:08:16,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:08:16,935 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:08:16,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:08:17,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 03:08:17,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:08:17,159 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:08:17,160 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:08:17,160 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:08:17,160 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:08:17,160 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:08:17,160 INFO L274 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-11-28 03:08:17,160 INFO L274 CegarLoopResult]: For program point L5(lines 5 11) no Hoare annotation was computed. [2020-11-28 03:08:17,161 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:08:17,161 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 03:08:17,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:08:17 BoogieIcfgContainer [2020-11-28 03:08:17,169 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:08:17,173 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:08:17,173 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:08:17,173 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:08:17,175 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:15" (3/4) ... [2020-11-28 03:08:17,180 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:08:17,195 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 03:08:17,195 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:08:17,195 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:08:17,195 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:08:17,232 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4e59a6ea-c6a1-4bf6-954e-3f62ff127071/bin/uautomizer/witness.graphml [2020-11-28 03:08:17,233 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:08:17,234 INFO L168 Benchmark]: Toolchain (without parser) took 2511.21 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 43.7 MB in the beginning and 42.9 MB in the end (delta: 843.7 kB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:17,235 INFO L168 Benchmark]: CDTParser took 2.12 ms. Allocated memory is still 62.9 MB. Free memory was 45.0 MB in the beginning and 45.0 MB in the end (delta: 33.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:17,236 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.95 ms. Allocated memory is still 62.9 MB. Free memory was 43.5 MB in the beginning and 34.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:17,237 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.72 ms. Allocated memory is still 62.9 MB. Free memory was 34.0 MB in the beginning and 32.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:17,237 INFO L168 Benchmark]: Boogie Preprocessor took 84.06 ms. Allocated memory is still 62.9 MB. Free memory was 32.6 MB in the beginning and 46.2 MB in the end (delta: -13.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:17,238 INFO L168 Benchmark]: RCFGBuilder took 546.26 ms. Allocated memory is still 62.9 MB. Free memory was 46.2 MB in the beginning and 36.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:17,239 INFO L168 Benchmark]: TraceAbstraction took 1494.67 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 35.8 MB in the beginning and 45.0 MB in the end (delta: -9.2 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:17,239 INFO L168 Benchmark]: Witness Printer took 59.92 ms. Allocated memory is still 75.5 MB. Free memory was 45.0 MB in the beginning and 42.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:17,243 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.12 ms. Allocated memory is still 62.9 MB. Free memory was 45.0 MB in the beginning and 45.0 MB in the end (delta: 33.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 267.95 ms. Allocated memory is still 62.9 MB. Free memory was 43.5 MB in the beginning and 34.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.72 ms. Allocated memory is still 62.9 MB. Free memory was 34.0 MB in the beginning and 32.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 84.06 ms. Allocated memory is still 62.9 MB. Free memory was 32.6 MB in the beginning and 46.2 MB in the end (delta: -13.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 546.26 ms. Allocated memory is still 62.9 MB. Free memory was 46.2 MB in the beginning and 36.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1494.67 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 35.8 MB in the beginning and 45.0 MB in the end (delta: -9.2 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Witness Printer took 59.92 ms. Allocated memory is still 75.5 MB. Free memory was 45.0 MB in the beginning and 42.9 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: 1.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 7 SDslu, 2 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s 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, 0.6s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 126 SizeOfPredicates, 3 NumberOfNonLiveVariables, 26 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...