./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Division-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6527d8e8-6439-4711-8985-735dfb440ee1/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6527d8e8-6439-4711-8985-735dfb440ee1/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6527d8e8-6439-4711-8985-735dfb440ee1/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6527d8e8-6439-4711-8985-735dfb440ee1/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Division-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6527d8e8-6439-4711-8985-735dfb440ee1/bin/uautomizer-DQz5hQGWxF/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6527d8e8-6439-4711-8985-735dfb440ee1/bin/uautomizer-DQz5hQGWxF --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 bcd985be4d5b056143625ede780ed1bdcfd1a69390fda6644aa25539fa51e5a7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:49:40,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:49:40,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:49:40,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:49:40,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:49:40,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:49:40,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:49:40,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:49:40,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:49:40,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:49:40,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:49:40,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:49:40,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:49:40,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:49:40,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:49:40,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:49:40,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:49:40,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:49:40,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:49:40,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:49:40,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:49:40,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:49:40,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:49:40,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:49:40,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:49:40,715 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:49:40,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:49:40,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:49:40,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:49:40,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:49:40,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:49:40,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:49:40,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:49:40,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:49:40,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:49:40,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:49:40,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:49:40,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:49:40,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:49:40,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:49:40,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:49:40,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6527d8e8-6439-4711-8985-735dfb440ee1/bin/uautomizer-DQz5hQGWxF/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-11-20 05:49:40,757 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:49:40,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:49:40,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:49:40,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:49:40,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:49:40,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:49:40,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:49:40,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:49:40,760 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:49:40,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:49:40,761 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 05:49:40,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:49:40,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:49:40,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:49:40,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:49:40,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:49:40,762 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-20 05:49:40,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:49:40,762 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:49:40,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:49:40,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:49:40,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:49:40,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:49:40,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:49:40,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:49:40,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:49:40,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:49:40,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:49:40,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:49:40,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:49:40,764 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:49:40,764 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_6527d8e8-6439-4711-8985-735dfb440ee1/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6527d8e8-6439-4711-8985-735dfb440ee1/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bcd985be4d5b056143625ede780ed1bdcfd1a69390fda6644aa25539fa51e5a7 [2021-11-20 05:49:41,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:49:41,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:49:41,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:49:41,041 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:49:41,042 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:49:41,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6527d8e8-6439-4711-8985-735dfb440ee1/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-crafted/Division-2.c [2021-11-20 05:49:41,116 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6527d8e8-6439-4711-8985-735dfb440ee1/bin/uautomizer-DQz5hQGWxF/data/a1387b141/61a59525e2554d3485302acf15e1e0ed/FLAG852ff88f2 [2021-11-20 05:49:41,588 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:49:41,589 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6527d8e8-6439-4711-8985-735dfb440ee1/sv-benchmarks/c/termination-crafted/Division-2.c [2021-11-20 05:49:41,602 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6527d8e8-6439-4711-8985-735dfb440ee1/bin/uautomizer-DQz5hQGWxF/data/a1387b141/61a59525e2554d3485302acf15e1e0ed/FLAG852ff88f2 [2021-11-20 05:49:41,958 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6527d8e8-6439-4711-8985-735dfb440ee1/bin/uautomizer-DQz5hQGWxF/data/a1387b141/61a59525e2554d3485302acf15e1e0ed [2021-11-20 05:49:41,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:49:41,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:49:41,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:49:41,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:49:41,981 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:49:41,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:49:41" (1/1) ... [2021-11-20 05:49:41,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@398e9dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:41, skipping insertion in model container [2021-11-20 05:49:41,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:49:41" (1/1) ... [2021-11-20 05:49:41,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:49:42,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:49:42,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:49:42,202 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:49:42,222 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:49:42,234 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:49:42,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:42 WrapperNode [2021-11-20 05:49:42,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:49:42,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:49:42,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:49:42,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:49:42,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:42" (1/1) ... [2021-11-20 05:49:42,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:42" (1/1) ... [2021-11-20 05:49:42,273 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2021-11-20 05:49:42,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:49:42,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:49:42,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:49:42,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:49:42,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:42" (1/1) ... [2021-11-20 05:49:42,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:42" (1/1) ... [2021-11-20 05:49:42,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:42" (1/1) ... [2021-11-20 05:49:42,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:42" (1/1) ... [2021-11-20 05:49:42,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:42" (1/1) ... [2021-11-20 05:49:42,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:42" (1/1) ... [2021-11-20 05:49:42,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:42" (1/1) ... [2021-11-20 05:49:42,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:49:42,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:49:42,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:49:42,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:49:42,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:42" (1/1) ... [2021-11-20 05:49:42,314 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:49:42,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6527d8e8-6439-4711-8985-735dfb440ee1/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:49:42,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6527d8e8-6439-4711-8985-735dfb440ee1/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:49:42,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6527d8e8-6439-4711-8985-735dfb440ee1/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:49:42,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:49:42,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:49:42,447 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:49:42,448 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:49:42,610 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:49:42,616 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:49:42,617 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 05:49:42,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:49:42 BoogieIcfgContainer [2021-11-20 05:49:42,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:49:42,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:49:42,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:49:42,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:49:42,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:49:41" (1/3) ... [2021-11-20 05:49:42,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d690c9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:49:42, skipping insertion in model container [2021-11-20 05:49:42,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:49:42" (2/3) ... [2021-11-20 05:49:42,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d690c9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:49:42, skipping insertion in model container [2021-11-20 05:49:42,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:49:42" (3/3) ... [2021-11-20 05:49:42,636 INFO L111 eAbstractionObserver]: Analyzing ICFG Division-2.c [2021-11-20 05:49:42,646 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:49:42,646 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-20 05:49:42,688 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:49:42,696 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 [2021-11-20 05:49:42,696 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-20 05:49:42,711 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 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) [2021-11-20 05:49:42,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-20 05:49:42,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:49:42,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-20 05:49:42,717 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-20 05:49:42,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:42,723 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2021-11-20 05:49:42,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:42,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184109967] [2021-11-20 05:49:42,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:42,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:42,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:49:42,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:42,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184109967] [2021-11-20 05:49:42,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184109967] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:42,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:49:42,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:49:42,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49846901] [2021-11-20 05:49:42,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:42,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:49:42,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:42,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:49:42,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:49:42,918 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-20 05:49:42,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:49:42,981 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2021-11-20 05:49:42,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:49:42,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-11-20 05:49:42,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:49:42,992 INFO L225 Difference]: With dead ends: 28 [2021-11-20 05:49:43,002 INFO L226 Difference]: Without dead ends: 13 [2021-11-20 05:49:43,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:49:43,009 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 12 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:49:43,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 14 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:49:43,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-20 05:49:43,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-11-20 05:49:43,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 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) [2021-11-20 05:49:43,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-11-20 05:49:43,070 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 4 [2021-11-20 05:49:43,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:49:43,071 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-11-20 05:49:43,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-20 05:49:43,071 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-11-20 05:49:43,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-20 05:49:43,072 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:49:43,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-20 05:49:43,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:49:43,073 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-20 05:49:43,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:49:43,074 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2021-11-20 05:49:43,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:49:43,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218306861] [2021-11-20 05:49:43,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:49:43,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:49:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:49:43,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:49:43,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:49:43,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218306861] [2021-11-20 05:49:43,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218306861] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:49:43,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:49:43,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:49:43,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574270436] [2021-11-20 05:49:43,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:49:43,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:49:43,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:49:43,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:49:43,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:49:43,141 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 3 states, 2 states have (on average 2.5) 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) [2021-11-20 05:49:43,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:49:43,174 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-11-20 05:49:43,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:49:43,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) 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 [2021-11-20 05:49:43,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:49:43,175 INFO L225 Difference]: With dead ends: 13 [2021-11-20 05:49:43,176 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 05:49:43,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:49:43,178 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:49:43,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:49:43,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 05:49:43,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 05:49:43,181 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) [2021-11-20 05:49:43,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 05:49:43,182 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-11-20 05:49:43,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:49:43,182 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 05:49:43,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) 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) [2021-11-20 05:49:43,183 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 05:49:43,183 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 05:49:43,186 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2021-11-20 05:49:43,187 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2021-11-20 05:49:43,187 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2021-11-20 05:49:43,188 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2021-11-20 05:49:43,188 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2021-11-20 05:49:43,188 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2021-11-20 05:49:43,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 05:49:43,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 05:49:43,198 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2021-11-20 05:49:43,199 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 05:49:43,199 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2021-11-20 05:49:43,199 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2021-11-20 05:49:43,200 INFO L861 garLoopResultBuilder]: At program point L17(lines 11 18) the Hoare annotation is: true [2021-11-20 05:49:43,200 INFO L858 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-11-20 05:49:43,200 INFO L858 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-11-20 05:49:43,201 INFO L858 garLoopResultBuilder]: For program point L15-2(line 15) no Hoare annotation was computed. [2021-11-20 05:49:43,201 INFO L858 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2021-11-20 05:49:43,201 INFO L858 garLoopResultBuilder]: For program point L15-4(line 15) no Hoare annotation was computed. [2021-11-20 05:49:43,201 INFO L858 garLoopResultBuilder]: For program point L15-5(line 15) no Hoare annotation was computed. [2021-11-20 05:49:43,201 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 05:49:43,202 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2021-11-20 05:49:43,202 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2021-11-20 05:49:43,202 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 05:49:43,203 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2021-11-20 05:49:43,203 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 05:49:43,203 INFO L861 garLoopResultBuilder]: At program point L14-2(lines 14 16) the Hoare annotation is: true [2021-11-20 05:49:43,203 INFO L858 garLoopResultBuilder]: For program point L14-3(lines 14 16) no Hoare annotation was computed. [2021-11-20 05:49:43,207 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-20 05:49:43,209 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 05:49:43,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:49:43 BoogieIcfgContainer [2021-11-20 05:49:43,219 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 05:49:43,219 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 05:49:43,220 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 05:49:43,220 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 05:49:43,220 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:49:42" (3/4) ... [2021-11-20 05:49:43,224 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 05:49:43,234 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-20 05:49:43,235 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-20 05:49:43,235 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 05:49:43,267 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6527d8e8-6439-4711-8985-735dfb440ee1/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 05:49:43,267 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 05:49:43,268 INFO L158 Benchmark]: Toolchain (without parser) took 1305.63ms. Allocated memory is still 107.0MB. Free memory was 71.2MB in the beginning and 47.2MB in the end (delta: 24.0MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2021-11-20 05:49:43,269 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 107.0MB. Free memory was 87.7MB in the beginning and 87.5MB in the end (delta: 184.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:49:43,269 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.38ms. Allocated memory is still 107.0MB. Free memory was 71.0MB in the beginning and 85.4MB in the end (delta: -14.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 05:49:43,270 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.02ms. Allocated memory is still 107.0MB. Free memory was 85.4MB in the beginning and 84.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:49:43,270 INFO L158 Benchmark]: Boogie Preprocessor took 27.05ms. Allocated memory is still 107.0MB. Free memory was 84.0MB in the beginning and 83.3MB in the end (delta: 633.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:49:43,271 INFO L158 Benchmark]: RCFGBuilder took 315.83ms. Allocated memory is still 107.0MB. Free memory was 83.3MB in the beginning and 74.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 05:49:43,272 INFO L158 Benchmark]: TraceAbstraction took 591.69ms. Allocated memory is still 107.0MB. Free memory was 74.0MB in the beginning and 49.3MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-20 05:49:43,272 INFO L158 Benchmark]: Witness Printer took 47.81ms. Allocated memory is still 107.0MB. Free memory was 49.3MB in the beginning and 47.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:49:43,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 107.0MB. Free memory was 87.7MB in the beginning and 87.5MB in the end (delta: 184.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.38ms. Allocated memory is still 107.0MB. Free memory was 71.0MB in the beginning and 85.4MB in the end (delta: -14.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.02ms. Allocated memory is still 107.0MB. Free memory was 85.4MB in the beginning and 84.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.05ms. Allocated memory is still 107.0MB. Free memory was 84.0MB in the beginning and 83.3MB in the end (delta: 633.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 315.83ms. Allocated memory is still 107.0MB. Free memory was 83.3MB in the beginning and 74.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 591.69ms. Allocated memory is still 107.0MB. Free memory was 74.0MB in the beginning and 49.3MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 47.81ms. Allocated memory is still 107.0MB. Free memory was 49.3MB in the beginning and 47.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: 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, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 13 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-20 05:49:43,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6527d8e8-6439-4711-8985-735dfb440ee1/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE