./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 07aee1a213388f511be96198bfb1df3a8f6aa54d1d332dfab8fc2fdcd2220999 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:15:12,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:15:12,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:15:12,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:15:12,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:15:12,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:15:12,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:15:12,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:15:12,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:15:12,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:15:12,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:15:12,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:15:12,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:15:12,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:15:12,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:15:12,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:15:12,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:15:12,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:15:12,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:15:12,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:15:12,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:15:12,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:15:12,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:15:12,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:15:12,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:15:12,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:15:12,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:15:12,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:15:12,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:15:12,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:15:12,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:15:12,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:15:12,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:15:12,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:15:12,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:15:12,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:15:12,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:15:12,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:15:12,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:15:12,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:15:12,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:15:12,711 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-21 19:15:12,754 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:15:12,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:15:12,755 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:15:12,756 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:15:12,758 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:15:12,758 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:15:12,758 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:15:12,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:15:12,759 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:15:12,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:15:12,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:15:12,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:15:12,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:15:12,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:15:12,761 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-21 19:15:12,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:15:12,762 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:15:12,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:15:12,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:15:12,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:15:12,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:15:12,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:15:12,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:15:12,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:15:12,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:15:12,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:15:12,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:15:12,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:15:12,765 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:15:12,765 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_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07aee1a213388f511be96198bfb1df3a8f6aa54d1d332dfab8fc2fdcd2220999 [2021-10-21 19:15:13,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:15:13,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:15:13,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:15:13,113 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:15:13,115 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:15:13,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c [2021-10-21 19:15:13,180 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/data/874ca6257/bf872ca342584c028ab38efa4fb167a3/FLAGac6544794 [2021-10-21 19:15:13,660 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:15:13,660 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c [2021-10-21 19:15:13,668 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/data/874ca6257/bf872ca342584c028ab38efa4fb167a3/FLAGac6544794 [2021-10-21 19:15:14,065 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/data/874ca6257/bf872ca342584c028ab38efa4fb167a3 [2021-10-21 19:15:14,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:15:14,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:15:14,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:15:14,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:15:14,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:15:14,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:15:14" (1/1) ... [2021-10-21 19:15:14,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a67efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:14, skipping insertion in model container [2021-10-21 19:15:14,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:15:14" (1/1) ... [2021-10-21 19:15:14,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:15:14,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:15:14,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:15:14,237 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:15:14,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:15:14,279 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:15:14,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:14 WrapperNode [2021-10-21 19:15:14,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:15:14,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:15:14,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:15:14,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:15:14,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:14" (1/1) ... [2021-10-21 19:15:14,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:14" (1/1) ... [2021-10-21 19:15:14,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:15:14,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:15:14,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:15:14,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:15:14,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:14" (1/1) ... [2021-10-21 19:15:14,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:14" (1/1) ... [2021-10-21 19:15:14,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:14" (1/1) ... [2021-10-21 19:15:14,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:14" (1/1) ... [2021-10-21 19:15:14,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:14" (1/1) ... [2021-10-21 19:15:14,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:14" (1/1) ... [2021-10-21 19:15:14,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:14" (1/1) ... [2021-10-21 19:15:14,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:15:14,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:15:14,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:15:14,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:15:14,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:14" (1/1) ... [2021-10-21 19:15:14,351 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:15:14,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:14,385 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:14,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:15:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:15:14,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:15:14,664 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:15:14,664 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 19:15:14,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:15:14 BoogieIcfgContainer [2021-10-21 19:15:14,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:15:14,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:15:14,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:15:14,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:15:14,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:15:14" (1/3) ... [2021-10-21 19:15:14,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ae8463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:15:14, skipping insertion in model container [2021-10-21 19:15:14,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:14" (2/3) ... [2021-10-21 19:15:14,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ae8463 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:15:14, skipping insertion in model container [2021-10-21 19:15:14,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:15:14" (3/3) ... [2021-10-21 19:15:14,682 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c [2021-10-21 19:15:14,688 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:15:14,688 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-21 19:15:14,750 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:15:14,761 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 19:15:14,761 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-21 19:15:14,784 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:14,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-21 19:15:14,788 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:15:14,789 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-21 19:15:14,790 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:15:14,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:14,798 INFO L82 PathProgramCache]: Analyzing trace with hash 29684842, now seen corresponding path program 1 times [2021-10-21 19:15:14,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:14,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102492139] [2021-10-21 19:15:14,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:14,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:15,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:15,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:15:15,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102492139] [2021-10-21 19:15:15,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102492139] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:15:15,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:15:15,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:15:15,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185823251] [2021-10-21 19:15:15,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:15:15,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:15:15,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:15:15,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:15:15,057 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:15,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:15:15,205 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2021-10-21 19:15:15,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:15:15,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-21 19:15:15,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:15:15,215 INFO L225 Difference]: With dead ends: 33 [2021-10-21 19:15:15,215 INFO L226 Difference]: Without dead ends: 20 [2021-10-21 19:15:15,218 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:15:15,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-21 19:15:15,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 16. [2021-10-21 19:15:15,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:15,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-10-21 19:15:15,248 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 5 [2021-10-21 19:15:15,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:15:15,249 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-21 19:15:15,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:15,249 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2021-10-21 19:15:15,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-21 19:15:15,250 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:15:15,250 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-21 19:15:15,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:15:15,251 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:15:15,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:15,252 INFO L82 PathProgramCache]: Analyzing trace with hash 29685034, now seen corresponding path program 1 times [2021-10-21 19:15:15,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:15,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797755701] [2021-10-21 19:15:15,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:15,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:15,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:15,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:15:15,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797755701] [2021-10-21 19:15:15,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797755701] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:15:15,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:15:15,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:15:15,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381581816] [2021-10-21 19:15:15,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 19:15:15,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:15:15,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 19:15:15,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-21 19:15:15,312 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:15,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:15:15,360 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2021-10-21 19:15:15,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 19:15:15,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-21 19:15:15,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:15:15,361 INFO L225 Difference]: With dead ends: 21 [2021-10-21 19:15:15,361 INFO L226 Difference]: Without dead ends: 20 [2021-10-21 19:15:15,362 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:15:15,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-21 19:15:15,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2021-10-21 19:15:15,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:15,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-10-21 19:15:15,367 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 5 [2021-10-21 19:15:15,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:15:15,367 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-10-21 19:15:15,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:15,368 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-10-21 19:15:15,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-21 19:15:15,368 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:15:15,369 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:15:15,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:15:15,369 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:15:15,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:15,370 INFO L82 PathProgramCache]: Analyzing trace with hash 920230152, now seen corresponding path program 1 times [2021-10-21 19:15:15,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:15,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998837117] [2021-10-21 19:15:15,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:15,371 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:15,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:15,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:15:15,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998837117] [2021-10-21 19:15:15,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998837117] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:15:15,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:15:15,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:15:15,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120884478] [2021-10-21 19:15:15,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:15:15,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:15:15,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:15:15,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:15:15,401 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:15,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:15:15,422 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2021-10-21 19:15:15,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:15:15,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-21 19:15:15,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:15:15,424 INFO L225 Difference]: With dead ends: 20 [2021-10-21 19:15:15,424 INFO L226 Difference]: Without dead ends: 19 [2021-10-21 19:15:15,425 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:15:15,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-21 19:15:15,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-10-21 19:15:15,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.4) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:15,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-10-21 19:15:15,429 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 6 [2021-10-21 19:15:15,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:15:15,430 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-21 19:15:15,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:15,430 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-10-21 19:15:15,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-21 19:15:15,431 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:15:15,431 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:15:15,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 19:15:15,432 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:15:15,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:15,432 INFO L82 PathProgramCache]: Analyzing trace with hash 920236110, now seen corresponding path program 1 times [2021-10-21 19:15:15,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:15,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421752521] [2021-10-21 19:15:15,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:15,433 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:15,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:15,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:15:15,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421752521] [2021-10-21 19:15:15,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421752521] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:15:15,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:15:15,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:15:15,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246995082] [2021-10-21 19:15:15,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 19:15:15,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:15:15,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:15:15,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:15:15,462 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:15,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:15:15,483 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2021-10-21 19:15:15,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:15:15,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-21 19:15:15,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:15:15,484 INFO L225 Difference]: With dead ends: 31 [2021-10-21 19:15:15,485 INFO L226 Difference]: Without dead ends: 15 [2021-10-21 19:15:15,485 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:15:15,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-21 19:15:15,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-21 19:15:15,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:15,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-10-21 19:15:15,489 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 6 [2021-10-21 19:15:15,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:15:15,490 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-10-21 19:15:15,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:15,490 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-10-21 19:15:15,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-21 19:15:15,491 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:15:15,491 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:15:15,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 19:15:15,491 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-21 19:15:15,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:15,492 INFO L82 PathProgramCache]: Analyzing trace with hash -22254561, now seen corresponding path program 1 times [2021-10-21 19:15:15,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:15,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676441646] [2021-10-21 19:15:15,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:15,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:15,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:15,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:15:15,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676441646] [2021-10-21 19:15:15,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676441646] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:15:15,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305394886] [2021-10-21 19:15:15,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:15,540 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:15:15,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:15,542 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:15:15,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:15:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:15,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:15:15,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:15,753 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:15,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305394886] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:15:15,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 19:15:15,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2021-10-21 19:15:15,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970042150] [2021-10-21 19:15:15,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:15:15,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:15:15,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:15:15,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:15:15,757 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:15,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:15:15,825 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2021-10-21 19:15:15,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:15:15,826 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-21 19:15:15,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:15:15,826 INFO L225 Difference]: With dead ends: 17 [2021-10-21 19:15:15,826 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:15:15,827 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 48.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:15:15,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:15:15,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:15:15,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:15,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:15:15,828 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-10-21 19:15:15,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:15:15,829 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:15:15,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:15,829 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:15:15,829 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:15:15,832 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:15:15,833 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:15:15,833 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:15:15,834 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-21 19:15:15,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:16,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:15:16,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:15:16,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:15:16,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:15:16,132 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-10-21 19:15:16,132 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:15:16,132 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-10-21 19:15:16,133 INFO L853 garLoopResultBuilder]: At program point L27(lines 13 28) the Hoare annotation is: (<= ULTIMATE.start_main_~n~0 2147483647) [2021-10-21 19:15:16,133 INFO L857 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-10-21 19:15:16,133 INFO L857 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2021-10-21 19:15:16,133 INFO L857 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-10-21 19:15:16,133 INFO L857 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-10-21 19:15:16,133 INFO L857 garLoopResultBuilder]: For program point L17(lines 17 26) no Hoare annotation was computed. [2021-10-21 19:15:16,134 INFO L857 garLoopResultBuilder]: For program point L17-1(lines 17 26) no Hoare annotation was computed. [2021-10-21 19:15:16,134 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-10-21 19:15:16,134 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-10-21 19:15:16,134 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:15:16,134 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:15:16,135 INFO L857 garLoopResultBuilder]: For program point L20(lines 20 24) no Hoare annotation was computed. [2021-10-21 19:15:16,135 INFO L853 garLoopResultBuilder]: At program point L20-2(lines 19 25) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 2147483647)) (.cse1 (< 0 ULTIMATE.start_main_~m~0))) (or (and (<= ULTIMATE.start_main_~i~0 2147483647) .cse0 .cse1 (<= ULTIMATE.start_main_~m~0 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~i~0 2147483646) .cse0 .cse1))) [2021-10-21 19:15:16,140 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:15:16,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:15:16 BoogieIcfgContainer [2021-10-21 19:15:16,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:15:16,155 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:15:16,155 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:15:16,156 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:15:16,156 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:15:14" (3/4) ... [2021-10-21 19:15:16,159 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:15:16,170 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-21 19:15:16,170 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-21 19:15:16,205 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:15:16,206 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:15:16,207 INFO L168 Benchmark]: Toolchain (without parser) took 2137.17 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 64.0 MB in the beginning and 66.7 MB in the end (delta: -2.6 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:15:16,208 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 107.0 MB. Free memory is still 80.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:15:16,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.97 ms. Allocated memory is still 107.0 MB. Free memory was 63.8 MB in the beginning and 81.6 MB in the end (delta: -17.8 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:15:16,209 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.45 ms. Allocated memory is still 107.0 MB. Free memory was 81.4 MB in the beginning and 80.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:15:16,209 INFO L168 Benchmark]: Boogie Preprocessor took 18.10 ms. Allocated memory is still 107.0 MB. Free memory was 80.1 MB in the beginning and 79.2 MB in the end (delta: 881.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:15:16,210 INFO L168 Benchmark]: RCFGBuilder took 330.08 ms. Allocated memory is still 107.0 MB. Free memory was 79.2 MB in the beginning and 71.0 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:15:16,210 INFO L168 Benchmark]: TraceAbstraction took 1479.58 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 70.5 MB in the beginning and 68.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:15:16,211 INFO L168 Benchmark]: Witness Printer took 50.50 ms. Allocated memory is still 130.0 MB. Free memory was 68.8 MB in the beginning and 66.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:15:16,214 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 107.0 MB. Free memory is still 80.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 196.97 ms. Allocated memory is still 107.0 MB. Free memory was 63.8 MB in the beginning and 81.6 MB in the end (delta: -17.8 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.45 ms. Allocated memory is still 107.0 MB. Free memory was 81.4 MB in the beginning and 80.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.10 ms. Allocated memory is still 107.0 MB. Free memory was 80.1 MB in the beginning and 79.2 MB in the end (delta: 881.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 330.08 ms. Allocated memory is still 107.0 MB. Free memory was 79.2 MB in the beginning and 71.0 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1479.58 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 70.5 MB in the beginning and 68.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. * Witness Printer took 50.50 ms. Allocated memory is still 130.0 MB. Free memory was 68.8 MB in the beginning and 66.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1391.4ms, OverallIterations: 5, TraceHistogramMax: 2, EmptinessCheckTime: 12.6ms, AutomataDifference: 364.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 82.0ms, InitialAbstractionConstructionTime: 16.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 19 SDtfs, 76 SDslu, 3 SDs, 0 SdLazy, 86 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 144.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 94.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=2, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 29.2ms AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 27 HoareAnnotationTreeSize, 2 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 39.9ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 34.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 13.2ms SsaConstructionTime, 55.8ms SatisfiabilityAnalysisTime, 382.7ms InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 122 SizeOfPredicates, 2 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 0/4 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: n <= 2147483647 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((i <= 2147483647 && n <= 2147483647) && 0 < m) && m <= i) || ((i <= 2147483646 && n <= 2147483647) && 0 < m) RESULT: Ultimate proved your program to be correct! [2021-10-21 19:15:16,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bdb4af7-0dcf-49a3-bd81-4816988cb8f0/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...