./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_loose.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_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_loose.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/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 4ffcfb5240555d68939cfa296fd9345209c9c26c ............................................................................................................................................................................................................................................................................ 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_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_loose.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/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 4ffcfb5240555d68939cfa296fd9345209c9c26c ............................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 21:13:01,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:13:01,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:13:01,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:13:01,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:13:01,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:13:01,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:13:01,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:13:01,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:13:01,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:13:01,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:13:01,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:13:01,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:13:01,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:13:01,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:13:01,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:13:01,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:13:01,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:13:01,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:13:01,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:13:01,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:13:01,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:13:01,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:13:01,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:13:01,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:13:01,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:13:01,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:13:01,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:13:01,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:13:01,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:13:01,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:13:01,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:13:01,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:13:01,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:13:01,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:13:01,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:13:01,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:13:01,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:13:01,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:13:01,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:13:01,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:13:01,163 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 21:13:01,201 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:13:01,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:13:01,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:13:01,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:13:01,206 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:13:01,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:13:01,207 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:13:01,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:13:01,207 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:13:01,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:13:01,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:13:01,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:13:01,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:13:01,210 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:13:01,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:13:01,211 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:13:01,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:13:01,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:13:01,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:13:01,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:13:01,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:13:01,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:13:01,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:13:01,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:13:01,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:13:01,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:13:01,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:13:01,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:13:01,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:13:01,215 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_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ffcfb5240555d68939cfa296fd9345209c9c26c [2020-11-29 21:13:01,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:13:01,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:13:01,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:13:01,622 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:13:01,623 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:13:01,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/../../sv-benchmarks/c/float-benchs/zonotope_loose.c [2020-11-29 21:13:01,726 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/data/aabc26ae3/142420932aaa41189ec20365a2b29068/FLAG637879b19 [2020-11-29 21:13:02,353 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:13:02,354 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/sv-benchmarks/c/float-benchs/zonotope_loose.c [2020-11-29 21:13:02,365 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/data/aabc26ae3/142420932aaa41189ec20365a2b29068/FLAG637879b19 [2020-11-29 21:13:02,709 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/data/aabc26ae3/142420932aaa41189ec20365a2b29068 [2020-11-29 21:13:02,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:13:02,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:13:02,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:13:02,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:13:02,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:13:02,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:13:02" (1/1) ... [2020-11-29 21:13:02,726 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 29.11 09:13:02, skipping insertion in model container [2020-11-29 21:13:02,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:13:02" (1/1) ... [2020-11-29 21:13:02,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:13:02,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:13:02,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:13:02,976 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:13:03,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:13:03,034 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:13:03,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:03 WrapperNode [2020-11-29 21:13:03,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:13:03,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:13:03,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:13:03,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:13:03,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:03" (1/1) ... [2020-11-29 21:13:03,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:03" (1/1) ... [2020-11-29 21:13:03,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:13:03,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:13:03,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:13:03,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:13:03,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:03" (1/1) ... [2020-11-29 21:13:03,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:03" (1/1) ... [2020-11-29 21:13:03,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:03" (1/1) ... [2020-11-29 21:13:03,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:03" (1/1) ... [2020-11-29 21:13:03,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:03" (1/1) ... [2020-11-29 21:13:03,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:03" (1/1) ... [2020-11-29 21:13:03,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:03" (1/1) ... [2020-11-29 21:13:03,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:13:03,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:13:03,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:13:03,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:13:03,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/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 [2020-11-29 21:13:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:13:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:13:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:13:03,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:13:03,522 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:13:03,523 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-29 21:13:03,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:13:03 BoogieIcfgContainer [2020-11-29 21:13:03,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:13:03,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:13:03,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:13:03,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:13:03,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:13:02" (1/3) ... [2020-11-29 21:13:03,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e080200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:13:03, skipping insertion in model container [2020-11-29 21:13:03,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:03" (2/3) ... [2020-11-29 21:13:03,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e080200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:13:03, skipping insertion in model container [2020-11-29 21:13:03,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:13:03" (3/3) ... [2020-11-29 21:13:03,560 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c [2020-11-29 21:13:03,574 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:13:03,580 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 21:13:03,598 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 21:13:03,635 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:13:03,636 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:13:03,636 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:13:03,636 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:13:03,636 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:13:03,636 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:13:03,637 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:13:03,639 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:13:03,669 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-11-29 21:13:03,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 21:13:03,709 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:13:03,710 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:13:03,710 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:13:03,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:13:03,718 INFO L82 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2020-11-29 21:13:03,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:13:03,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221415321] [2020-11-29 21:13:03,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:13:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:13:03,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:03,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221415321] [2020-11-29 21:13:03,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:13:03,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:13:03,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654724230] [2020-11-29 21:13:03,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 21:13:03,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:13:03,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 21:13:03,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:13:03,910 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2020-11-29 21:13:03,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:13:03,928 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2020-11-29 21:13:03,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 21:13:03,930 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-29 21:13:03,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:13:03,940 INFO L225 Difference]: With dead ends: 24 [2020-11-29 21:13:03,940 INFO L226 Difference]: Without dead ends: 9 [2020-11-29 21:13:03,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:13:03,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-11-29 21:13:03,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-29 21:13:03,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-29 21:13:03,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-11-29 21:13:03,982 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2020-11-29 21:13:03,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:13:03,983 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-11-29 21:13:03,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 21:13:03,983 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-11-29 21:13:03,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 21:13:03,983 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:13:03,984 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:13:03,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 21:13:03,984 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:13:03,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:13:03,986 INFO L82 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2020-11-29 21:13:03,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:13:03,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363036780] [2020-11-29 21:13:03,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:13:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:13:04,026 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:13:04,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:13:04,055 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:13:04,080 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:13:04,080 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 21:13:04,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 21:13:04,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:13:04 BoogieIcfgContainer [2020-11-29 21:13:04,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:13:04,111 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:13:04,111 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:13:04,111 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:13:04,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:13:03" (3/4) ... [2020-11-29 21:13:04,116 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 21:13:04,116 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:13:04,119 INFO L168 Benchmark]: Toolchain (without parser) took 1402.56 ms. Allocated memory is still 96.5 MB. Free memory was 62.0 MB in the beginning and 41.3 MB in the end (delta: 20.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:13:04,120 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 96.5 MB. Free memory is still 78.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:13:04,121 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.08 ms. Allocated memory is still 96.5 MB. Free memory was 61.7 MB in the beginning and 74.9 MB in the end (delta: -13.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:13:04,122 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.89 ms. Allocated memory is still 96.5 MB. Free memory was 74.9 MB in the beginning and 73.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:13:04,123 INFO L168 Benchmark]: Boogie Preprocessor took 45.13 ms. Allocated memory is still 96.5 MB. Free memory was 73.5 MB in the beginning and 72.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:13:04,123 INFO L168 Benchmark]: RCFGBuilder took 368.23 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 61.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:13:04,124 INFO L168 Benchmark]: TraceAbstraction took 569.02 ms. Allocated memory is still 96.5 MB. Free memory was 61.3 MB in the beginning and 41.7 MB in the end (delta: 19.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 21:13:04,125 INFO L168 Benchmark]: Witness Printer took 5.90 ms. Allocated memory is still 96.5 MB. Free memory is still 41.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:13:04,129 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 96.5 MB. Free memory is still 78.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 318.08 ms. Allocated memory is still 96.5 MB. Free memory was 61.7 MB in the beginning and 74.9 MB in the end (delta: -13.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.89 ms. Allocated memory is still 96.5 MB. Free memory was 74.9 MB in the beginning and 73.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.13 ms. Allocated memory is still 96.5 MB. Free memory was 73.5 MB in the beginning and 72.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 368.23 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 61.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 569.02 ms. Allocated memory is still 96.5 MB. Free memory was 61.3 MB in the beginning and 41.7 MB in the end (delta: 19.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.90 ms. Allocated memory is still 96.5 MB. Free memory is still 41.3 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 someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 24. Possible FailurePath: [L18] double x,y; [L20] x = __VERIFIER_nondet_double() [L12] COND FALSE !(!cond) [L23] y = x*x - x [L24] COND TRUE y >= 0 [L24] y = x / 10. [L14] COND TRUE !(cond) [L3] __assert_fail("0", "zonotope_loose.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2020-11-29 21:13:07,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:13:07,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:13:07,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:13:07,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:13:07,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:13:07,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:13:07,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:13:07,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:13:07,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:13:07,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:13:07,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:13:07,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:13:07,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:13:07,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:13:07,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:13:07,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:13:07,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:13:07,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:13:07,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:13:07,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:13:07,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:13:07,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:13:07,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:13:07,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:13:07,659 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:13:07,660 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:13:07,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:13:07,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:13:07,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:13:07,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:13:07,665 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:13:07,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:13:07,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:13:07,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:13:07,676 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:13:07,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:13:07,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:13:07,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:13:07,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:13:07,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:13:07,684 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 21:13:07,738 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:13:07,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:13:07,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:13:07,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:13:07,744 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:13:07,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:13:07,744 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:13:07,745 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:13:07,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:13:07,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:13:07,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:13:07,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:13:07,747 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 21:13:07,748 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 21:13:07,748 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:13:07,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:13:07,749 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:13:07,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:13:07,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:13:07,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:13:07,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:13:07,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:13:07,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:13:07,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:13:07,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:13:07,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:13:07,752 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 21:13:07,752 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 21:13:07,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:13:07,760 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:13:07,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 21:13:07,761 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_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ffcfb5240555d68939cfa296fd9345209c9c26c [2020-11-29 21:13:08,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:13:08,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:13:08,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:13:08,345 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:13:08,346 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:13:08,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/../../sv-benchmarks/c/float-benchs/zonotope_loose.c [2020-11-29 21:13:08,420 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/data/72ece731b/04dc3c17511f4f7887f2951f424d5826/FLAG981c7cb00 [2020-11-29 21:13:09,065 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:13:09,066 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/sv-benchmarks/c/float-benchs/zonotope_loose.c [2020-11-29 21:13:09,074 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/data/72ece731b/04dc3c17511f4f7887f2951f424d5826/FLAG981c7cb00 [2020-11-29 21:13:09,460 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/data/72ece731b/04dc3c17511f4f7887f2951f424d5826 [2020-11-29 21:13:09,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:13:09,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:13:09,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:13:09,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:13:09,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:13:09,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:13:09" (1/1) ... [2020-11-29 21:13:09,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48cf8fa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:09, skipping insertion in model container [2020-11-29 21:13:09,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:13:09" (1/1) ... [2020-11-29 21:13:09,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:13:09,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:13:09,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:13:09,798 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:13:09,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:13:09,854 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:13:09,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:09 WrapperNode [2020-11-29 21:13:09,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:13:09,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:13:09,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:13:09,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:13:09,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:09" (1/1) ... [2020-11-29 21:13:09,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:09" (1/1) ... [2020-11-29 21:13:09,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:13:09,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:13:09,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:13:09,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:13:09,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:09" (1/1) ... [2020-11-29 21:13:10,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:09" (1/1) ... [2020-11-29 21:13:10,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:09" (1/1) ... [2020-11-29 21:13:10,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:09" (1/1) ... [2020-11-29 21:13:10,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:09" (1/1) ... [2020-11-29 21:13:10,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:09" (1/1) ... [2020-11-29 21:13:10,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:09" (1/1) ... [2020-11-29 21:13:10,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:13:10,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:13:10,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:13:10,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:13:10,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/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 [2020-11-29 21:13:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 21:13:10,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:13:10,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:13:10,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:13:15,392 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:13:15,393 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-29 21:13:15,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:13:15 BoogieIcfgContainer [2020-11-29 21:13:15,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:13:15,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:13:15,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:13:15,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:13:15,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:13:09" (1/3) ... [2020-11-29 21:13:15,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3acd3bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:13:15, skipping insertion in model container [2020-11-29 21:13:15,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:13:09" (2/3) ... [2020-11-29 21:13:15,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3acd3bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:13:15, skipping insertion in model container [2020-11-29 21:13:15,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:13:15" (3/3) ... [2020-11-29 21:13:15,408 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c [2020-11-29 21:13:15,423 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:13:15,436 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 21:13:15,451 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 21:13:15,482 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:13:15,483 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:13:15,483 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:13:15,483 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:13:15,484 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:13:15,484 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:13:15,484 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:13:15,484 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:13:15,500 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-11-29 21:13:15,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 21:13:15,507 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:13:15,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:13:15,508 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:13:15,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:13:15,516 INFO L82 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2020-11-29 21:13:15,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:13:15,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655620260] [2020-11-29 21:13:15,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/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 [2020-11-29 21:13:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:13:16,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 21:13:16,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:13:16,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:16,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:13:16,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:13:16,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1655620260] [2020-11-29 21:13:16,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:13:16,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 21:13:16,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540486423] [2020-11-29 21:13:16,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 21:13:16,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:13:16,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 21:13:16,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:13:16,305 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2020-11-29 21:13:16,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:13:16,327 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2020-11-29 21:13:16,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 21:13:16,329 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-29 21:13:16,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:13:16,352 INFO L225 Difference]: With dead ends: 24 [2020-11-29 21:13:16,363 INFO L226 Difference]: Without dead ends: 9 [2020-11-29 21:13:16,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:13:16,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-11-29 21:13:16,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-29 21:13:16,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-29 21:13:16,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-11-29 21:13:16,412 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2020-11-29 21:13:16,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:13:16,412 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-11-29 21:13:16,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 21:13:16,413 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-11-29 21:13:16,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 21:13:16,414 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:13:16,415 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:13:16,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 21:13:16,628 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:13:16,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:13:16,629 INFO L82 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2020-11-29 21:13:16,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:13:16,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715913495] [2020-11-29 21:13:16,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 21:13:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:13:17,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 21:13:17,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:13:17,600 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:13:20,921 WARN L860 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (= c_ULTIMATE.start_main_~y~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~x~0 .cse0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse0))))) is different from true [2020-11-29 21:13:20,926 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 21:13:23,194 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 21:14:10,630 WARN L193 SmtUtils]: Spent 27.27 s on a formula simplification. DAG size of input: 27 DAG size of output: 22 [2020-11-29 21:14:17,453 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse0) (not (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))))) is different from false [2020-11-29 21:14:19,684 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse0) (not (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))))) is different from true [2020-11-29 21:14:19,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:14:19,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:14:26,056 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse0 (_ +zero 11 53)))) is different from false [2020-11-29 21:14:28,319 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse0 (_ +zero 11 53)))) is different from true [2020-11-29 21:14:30,582 WARN L838 $PredicateComparison]: unable to prove that (or (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse0 (_ +zero 11 53)))) (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond)) is different from false [2020-11-29 21:14:32,849 WARN L860 $PredicateComparison]: unable to prove that (or (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse0 (_ +zero 11 53)))) (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond)) is different from true [2020-11-29 21:14:32,874 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-11-29 21:14:32,875 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 21:14:32,877 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-29 21:14:35,127 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53))) (not (fp.leq v_ULTIMATE.start_main_~x~0_9 .cse0)) (fp.geq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 .cse0) (_ +zero 11 53))))) (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 .cse1) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53))) (not (fp.leq v_ULTIMATE.start_main_~x~0_9 .cse1)))))) is different from false [2020-11-29 21:14:37,629 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53))) (not (fp.leq v_ULTIMATE.start_main_~x~0_9 .cse0)) (fp.geq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 .cse0) (_ +zero 11 53))))) (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 .cse1) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53))) (not (fp.leq v_ULTIMATE.start_main_~x~0_9 .cse1)))))) is different from true [2020-11-29 21:14:37,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:14:37,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715913495] [2020-11-29 21:14:37,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:14:37,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2020-11-29 21:14:37,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146478527] [2020-11-29 21:14:37,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-29 21:14:37,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:14:37,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-29 21:14:37,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=38, Unknown=13, NotChecked=80, Total=156 [2020-11-29 21:14:37,638 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 13 states. [2020-11-29 21:14:39,983 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53))) (not (fp.leq v_ULTIMATE.start_main_~x~0_9 .cse0)) (fp.geq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 .cse0) (_ +zero 11 53))))) (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 .cse1) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53))) (not (fp.leq v_ULTIMATE.start_main_~x~0_9 .cse1)))))) is different from false [2020-11-29 21:14:42,484 WARN L860 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53))) (not (fp.leq v_ULTIMATE.start_main_~x~0_9 .cse0)) (fp.geq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 .cse0) (_ +zero 11 53))))) (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 .cse1) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53))) (not (fp.leq v_ULTIMATE.start_main_~x~0_9 .cse1)))))) is different from true [2020-11-29 21:14:46,602 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (or (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 .cse1))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse0 (_ +zero 11 53)))) .cse2) (= c_currentRoundingMode roundNearestTiesToEven) (let ((.cse4 (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53))) (.cse3 (fp.leq c_ULTIMATE.start_main_~x~0 .cse1))) (or (and (or (not .cse3) (not .cse4)) .cse2) (and (= (_ bv1 32) c_ULTIMATE.start_assume_abort_if_not_~cond) .cse4 .cse3))))) is different from true [2020-11-29 21:15:36,063 WARN L193 SmtUtils]: Spent 34.34 s on a formula simplification. DAG size of input: 15 DAG size of output: 14 [2020-11-29 21:16:20,391 WARN L193 SmtUtils]: Spent 29.83 s on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2020-11-29 21:16:41,777 WARN L193 SmtUtils]: Spent 12.42 s on a formula simplification. DAG size of input: 32 DAG size of output: 20 [2020-11-29 21:16:46,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:16:46,329 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-11-29 21:16:46,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 21:16:46,330 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 8 [2020-11-29 21:16:46,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:16:46,331 INFO L225 Difference]: With dead ends: 13 [2020-11-29 21:16:46,331 INFO L226 Difference]: Without dead ends: 9 [2020-11-29 21:16:46,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 178.6s TimeCoverageRelationStatistics Valid=45, Invalid=69, Unknown=24, NotChecked=168, Total=306 [2020-11-29 21:16:46,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-11-29 21:16:46,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-29 21:16:46,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-29 21:16:46,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2020-11-29 21:16:46,334 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2020-11-29 21:16:46,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:16:46,335 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2020-11-29 21:16:46,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-29 21:16:46,335 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-11-29 21:16:46,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 21:16:46,335 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:16:46,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:16:46,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 21:16:46,537 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:16:46,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:16:46,537 INFO L82 PathProgramCache]: Analyzing trace with hash 176701705, now seen corresponding path program 1 times [2020-11-29 21:16:46,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:16:46,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474193608] [2020-11-29 21:16:46,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 21:16:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:16:47,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 21:16:47,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:16:47,331 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:16:49,460 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (= c_ULTIMATE.start_main_~y~0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0) c_ULTIMATE.start_main_~x~0)) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) is different from false [2020-11-29 21:16:51,557 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.sub c_currentRoundingMode .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= c_ULTIMATE.start_main_~y~0 (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))))))) is different from false [2020-11-29 21:16:51,576 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 21:16:53,666 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 21:17:08,326 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (or (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse1) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 105.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq .cse2 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse3 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))))) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse1))) is different from false [2020-11-29 21:17:18,801 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_1 v_prenex_1))) (and (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_1) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) is different from false [2020-11-29 21:17:20,883 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_1 v_prenex_1))) (and (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_1) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) is different from true [2020-11-29 21:17:20,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:17:20,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:17:54,960 WARN L193 SmtUtils]: Spent 17.42 s on a formula simplification. DAG size of input: 17 DAG size of output: 14 [2020-11-29 21:17:57,030 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) is different from false [2020-11-29 21:18:00,155 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) is different from false [2020-11-29 21:18:02,144 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-11-29 21:18:02,144 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 21:18:04,239 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~x~0_10 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~x~0_10))) (or (not (fp.geq v_ULTIMATE.start_main_~x~0_10 (_ +zero 11 53))) (not (fp.leq v_ULTIMATE.start_main_~x~0_10 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_10) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0))))) is different from false [2020-11-29 21:18:06,318 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~x~0_10 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~x~0_10))) (or (not (fp.geq v_ULTIMATE.start_main_~x~0_10 (_ +zero 11 53))) (not (fp.leq v_ULTIMATE.start_main_~x~0_10 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_10) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0))))) is different from true [2020-11-29 21:18:06,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:18:06,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474193608] [2020-11-29 21:18:06,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:18:06,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 14 [2020-11-29 21:18:06,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676514237] [2020-11-29 21:18:06,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-29 21:18:06,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:18:06,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-29 21:18:06,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=41, Unknown=13, NotChecked=126, Total=210 [2020-11-29 21:18:06,323 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand 15 states. [2020-11-29 21:18:09,442 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((v_ULTIMATE.start_main_~x~0_10 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~x~0_10))) (or (not (fp.geq v_ULTIMATE.start_main_~x~0_10 (_ +zero 11 53))) (not (fp.leq v_ULTIMATE.start_main_~x~0_10 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_10) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)))))) is different from false [2020-11-29 21:18:11,514 WARN L860 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((v_ULTIMATE.start_main_~x~0_10 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~x~0_10))) (or (not (fp.geq v_ULTIMATE.start_main_~x~0_10 (_ +zero 11 53))) (not (fp.leq v_ULTIMATE.start_main_~x~0_10 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_10) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)))))) is different from true [2020-11-29 21:18:13,593 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond))) (and (= c_currentRoundingMode roundNearestTiesToEven) (let ((.cse1 (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53))) (.cse0 (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (or (and (or (not .cse0) (not .cse1)) .cse2) (and (= (_ bv1 32) c_ULTIMATE.start_assume_abort_if_not_~cond) .cse1 .cse0))) (let ((.cse3 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (or (fp.geq (fp.sub c_currentRoundingMode .cse3 c_ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) .cse2 (fp.leq (fp.add c_currentRoundingMode .cse3 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)))))) is different from false [2020-11-29 21:18:17,104 WARN L860 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0))))) is different from true [2020-11-29 21:18:20,707 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (and (or (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (= c_currentRoundingMode roundNearestTiesToEven) (= c_ULTIMATE.start_main_~y~0 (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0)) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) is different from true [2020-11-29 21:18:22,787 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (fp.geq c_ULTIMATE.start_main_~y~0 (_ +zero 11 53)) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.sub c_currentRoundingMode .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= c_ULTIMATE.start_main_~y~0 (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)))))) (fp.leq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) c_currentRoundingMode 105.0))) is different from false [2020-11-29 21:18:24,875 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (not .cse0) (or (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse0) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 105.0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq .cse2 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse3 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))))) (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse0)))) is different from false [2020-11-29 21:18:24,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:18:24,881 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2020-11-29 21:18:24,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 21:18:24,881 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 8 [2020-11-29 21:18:24,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:18:24,881 INFO L225 Difference]: With dead ends: 9 [2020-11-29 21:18:24,881 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 21:18:24,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 13 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 73.6s TimeCoverageRelationStatistics Valid=42, Invalid=46, Unknown=20, NotChecked=312, Total=420 [2020-11-29 21:18:24,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 21:18:24,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 21:18:24,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 21:18:24,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 21:18:24,883 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-11-29 21:18:24,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:18:24,883 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:18:24,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-29 21:18:24,883 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 21:18:24,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 21:18:25,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 21:18:25,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 21:18:25,130 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 21:18:25,130 INFO L274 CegarLoopResult]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-11-29 21:18:25,130 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 21:18:25,131 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 21:18:25,131 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 21:18:25,131 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 21:18:25,131 INFO L277 CegarLoopResult]: At program point L28(lines 16 29) the Hoare annotation is: true [2020-11-29 21:18:25,131 INFO L274 CegarLoopResult]: For program point L24(lines 24 25) no Hoare annotation was computed. [2020-11-29 21:18:25,131 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 21:18:25,132 INFO L274 CegarLoopResult]: For program point L24-2(lines 24 25) no Hoare annotation was computed. [2020-11-29 21:18:25,132 INFO L274 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-11-29 21:18:25,132 INFO L274 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-11-29 21:18:25,132 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 21:18:25,132 INFO L277 CegarLoopResult]: At program point L14-3(line 14) the Hoare annotation is: true [2020-11-29 21:18:25,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:18:25 BoogieIcfgContainer [2020-11-29 21:18:25,142 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:18:25,143 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:18:25,143 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:18:25,143 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:18:25,144 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:13:15" (3/4) ... [2020-11-29 21:18:25,148 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 21:18:25,160 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-29 21:18:25,160 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 21:18:25,161 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 21:18:25,161 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 21:18:25,223 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fbf63e51-feec-4fa6-880c-777b7ee6c1d9/bin/uautomizer/witness.graphml [2020-11-29 21:18:25,224 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:18:25,226 INFO L168 Benchmark]: Toolchain (without parser) took 315758.51 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 38.1 MB in the beginning and 46.6 MB in the end (delta: -8.6 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-11-29 21:18:25,226 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 58.7 MB. Free memory was 41.1 MB in the beginning and 41.0 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:18:25,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.80 ms. Allocated memory is still 58.7 MB. Free memory was 38.0 MB in the beginning and 27.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:18:25,228 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.45 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 27.9 MB in the beginning and 59.6 MB in the end (delta: -31.7 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:18:25,229 INFO L168 Benchmark]: Boogie Preprocessor took 68.98 ms. Allocated memory is still 75.5 MB. Free memory was 59.6 MB in the beginning and 58.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:18:25,229 INFO L168 Benchmark]: RCFGBuilder took 5353.27 ms. Allocated memory is still 75.5 MB. Free memory was 58.4 MB in the beginning and 46.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:18:25,230 INFO L168 Benchmark]: TraceAbstraction took 309743.80 ms. Allocated memory is still 75.5 MB. Free memory was 46.3 MB in the beginning and 48.8 MB in the end (delta: -2.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:18:25,230 INFO L168 Benchmark]: Witness Printer took 81.27 ms. Allocated memory is still 75.5 MB. Free memory was 48.8 MB in the beginning and 46.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:18:25,234 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 58.7 MB. Free memory was 41.1 MB in the beginning and 41.0 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 385.80 ms. Allocated memory is still 58.7 MB. Free memory was 38.0 MB in the beginning and 27.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 113.45 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 27.9 MB in the beginning and 59.6 MB in the end (delta: -31.7 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.98 ms. Allocated memory is still 75.5 MB. Free memory was 59.6 MB in the beginning and 58.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5353.27 ms. Allocated memory is still 75.5 MB. Free memory was 58.4 MB in the beginning and 46.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 309743.80 ms. Allocated memory is still 75.5 MB. Free memory was 46.3 MB in the beginning and 48.8 MB in the end (delta: -2.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 81.27 ms. Allocated memory is still 75.5 MB. Free memory was 48.8 MB in the beginning and 46.6 MB in the end (delta: 2.2 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 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 309.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 147.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 5 SDslu, 10 SDs, 0 SdLazy, 17 SolverSat, 0 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 13.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 20 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 252.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 159.4s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 8 QuantifiedInterpolants, 4858 SizeOfPredicates, 14 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...