./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b4a685d1-aa6f-4545-9b08-1402a6032631/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b4a685d1-aa6f-4545-9b08-1402a6032631/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b4a685d1-aa6f-4545-9b08-1402a6032631/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b4a685d1-aa6f-4545-9b08-1402a6032631/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b4a685d1-aa6f-4545-9b08-1402a6032631/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b4a685d1-aa6f-4545-9b08-1402a6032631/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6774d8276995139fa82226959a0a91ee830b52b2 ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:11:50,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:11:50,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:11:50,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:11:50,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:11:50,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:11:50,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:11:50,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:11:50,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:11:50,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:11:50,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:11:50,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:11:50,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:11:50,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:11:50,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:11:50,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:11:50,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:11:50,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:11:50,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:11:50,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:11:50,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:11:50,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:11:50,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:11:50,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:11:50,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:11:50,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:11:50,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:11:50,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:11:50,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:11:50,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:11:50,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:11:50,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:11:50,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:11:50,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:11:50,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:11:50,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:11:50,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:11:50,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:11:50,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:11:50,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:11:50,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:11:50,867 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b4a685d1-aa6f-4545-9b08-1402a6032631/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:11:50,893 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:11:50,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:11:50,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:11:50,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:11:50,896 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:11:50,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:11:50,897 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:11:50,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:11:50,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:11:50,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:11:50,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:11:50,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:11:50,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:11:50,899 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:11:50,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:11:50,899 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:11:50,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:11:50,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:11:50,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:11:50,901 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:11:50,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:11:50,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:11:50,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:11:50,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:11:50,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:11:50,902 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:11:50,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:11:50,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:11:50,903 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:11:50,904 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_b4a685d1-aa6f-4545-9b08-1402a6032631/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b4a685d1-aa6f-4545-9b08-1402a6032631/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6774d8276995139fa82226959a0a91ee830b52b2 [2020-11-28 03:11:51,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:11:51,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:11:51,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:11:51,198 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:11:51,200 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:11:51,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b4a685d1-aa6f-4545-9b08-1402a6032631/bin/uautomizer/../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2020-11-28 03:11:51,300 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4a685d1-aa6f-4545-9b08-1402a6032631/bin/uautomizer/data/685de34d0/9a9cc995e76a4f809f27918bfa5d55c0/FLAG3ff2b5c5c [2020-11-28 03:11:51,773 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:11:51,773 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b4a685d1-aa6f-4545-9b08-1402a6032631/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2020-11-28 03:11:51,780 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4a685d1-aa6f-4545-9b08-1402a6032631/bin/uautomizer/data/685de34d0/9a9cc995e76a4f809f27918bfa5d55c0/FLAG3ff2b5c5c [2020-11-28 03:11:52,131 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b4a685d1-aa6f-4545-9b08-1402a6032631/bin/uautomizer/data/685de34d0/9a9cc995e76a4f809f27918bfa5d55c0 [2020-11-28 03:11:52,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:11:52,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:11:52,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:52,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:11:52,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:11:52,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:52" (1/1) ... [2020-11-28 03:11:52,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8c27965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:52, skipping insertion in model container [2020-11-28 03:11:52,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:52" (1/1) ... [2020-11-28 03:11:52,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:11:52,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:11:52,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:52,448 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:11:52,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:52,523 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:11:52,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:52 WrapperNode [2020-11-28 03:11:52,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:52,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:52,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:11:52,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:11:52,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:52" (1/1) ... [2020-11-28 03:11:52,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:52" (1/1) ... [2020-11-28 03:11:52,573 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:52,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:11:52,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:11:52,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:11:52,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:52" (1/1) ... [2020-11-28 03:11:52,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:52" (1/1) ... [2020-11-28 03:11:52,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:52" (1/1) ... [2020-11-28 03:11:52,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:52" (1/1) ... [2020-11-28 03:11:52,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:52" (1/1) ... [2020-11-28 03:11:52,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:52" (1/1) ... [2020-11-28 03:11:52,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:52" (1/1) ... [2020-11-28 03:11:52,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:11:52,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:11:52,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:11:52,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:11:52,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4a685d1-aa6f-4545-9b08-1402a6032631/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:11:52,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:11:52,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:11:52,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:11:52,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:11:53,170 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:11:53,170 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 03:11:53,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:53 BoogieIcfgContainer [2020-11-28 03:11:53,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:11:53,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:11:53,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:11:53,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:11:53,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:11:52" (1/3) ... [2020-11-28 03:11:53,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f30de36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:53, skipping insertion in model container [2020-11-28 03:11:53,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:52" (2/3) ... [2020-11-28 03:11:53,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f30de36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:53, skipping insertion in model container [2020-11-28 03:11:53,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:53" (3/3) ... [2020-11-28 03:11:53,187 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.c [2020-11-28 03:11:53,200 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:11:53,205 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:11:53,219 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:11:53,242 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:11:53,243 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:11:53,243 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:11:53,243 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:11:53,243 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:11:53,244 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:11:53,244 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:11:53,244 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:11:53,266 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-11-28 03:11:53,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:11:53,275 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:53,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:53,276 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:53,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:53,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1053789450, now seen corresponding path program 1 times [2020-11-28 03:11:53,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:53,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486673862] [2020-11-28 03:11:53,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:53,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:53,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:53,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486673862] [2020-11-28 03:11:53,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:53,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:11:53,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377005196] [2020-11-28 03:11:53,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:11:53,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:53,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:11:53,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:11:53,842 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2020-11-28 03:12:02,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:02,611 INFO L93 Difference]: Finished difference Result 62 states and 83 transitions. [2020-11-28 03:12:02,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:12:02,615 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-28 03:12:02,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:02,623 INFO L225 Difference]: With dead ends: 62 [2020-11-28 03:12:02,623 INFO L226 Difference]: Without dead ends: 26 [2020-11-28 03:12:02,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:12:02,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-11-28 03:12:02,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2020-11-28 03:12:02,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-28 03:12:02,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2020-11-28 03:12:02,662 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 11 [2020-11-28 03:12:02,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:02,662 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2020-11-28 03:12:02,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:12:02,663 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2020-11-28 03:12:02,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 03:12:02,663 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:12:02,664 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:12:02,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:12:02,664 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:12:02,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:02,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1386902912, now seen corresponding path program 1 times [2020-11-28 03:12:02,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:02,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629791570] [2020-11-28 03:12:02,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:02,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:12:02,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629791570] [2020-11-28 03:12:02,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:12:02,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:12:02,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764256330] [2020-11-28 03:12:02,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:12:02,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:12:02,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:12:02,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:12:02,878 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand 4 states. [2020-11-28 03:12:05,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:12:05,124 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2020-11-28 03:12:05,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:12:05,127 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-28 03:12:05,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:12:05,127 INFO L225 Difference]: With dead ends: 46 [2020-11-28 03:12:05,127 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:12:05,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:12:05,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:12:05,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:12:05,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:12:05,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:12:05,129 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-28 03:12:05,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:12:05,130 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:12:05,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:12:05,130 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:12:05,130 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:12:05,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:12:05,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:12:05,187 INFO L274 CegarLoopResult]: For program point L97(lines 97 106) no Hoare annotation was computed. [2020-11-28 03:12:05,188 INFO L270 CegarLoopResult]: At program point L122(lines 25 145) the Hoare annotation is: (<= ULTIMATE.start_main_~main__x~0 (let ((.cse2 (div ULTIMATE.start_main_~main__x~0 4294967296))) (let ((.cse0 (* .cse2 (- 4294967296)))) (let ((.cse1 (div (+ ULTIMATE.start_main_~main__x~0 .cse0) 3))) (+ (* 4294967296 (div (+ ULTIMATE.start_main_~main__x~0 .cse0 (* .cse1 (- 3))) 4294967296)) (* 4294967296 .cse2) (* 3 .cse1)))))) [2020-11-28 03:12:05,188 INFO L270 CegarLoopResult]: At program point L56(lines 26 114) the Hoare annotation is: (<= ULTIMATE.start_main_~main__x~0 (let ((.cse2 (div ULTIMATE.start_main_~main__x~0 4294967296))) (let ((.cse0 (* .cse2 (- 4294967296)))) (let ((.cse1 (div (+ ULTIMATE.start_main_~main__x~0 .cse0) 3))) (+ (* 4294967296 (div (+ ULTIMATE.start_main_~main__x~0 .cse0 (* .cse1 (- 3))) 4294967296)) (* 4294967296 .cse2) (* 3 .cse1)))))) [2020-11-28 03:12:05,188 INFO L274 CegarLoopResult]: For program point L23(lines 23 150) no Hoare annotation was computed. [2020-11-28 03:12:05,188 INFO L274 CegarLoopResult]: For program point L48(lines 48 85) no Hoare annotation was computed. [2020-11-28 03:12:05,188 INFO L270 CegarLoopResult]: At program point L44(lines 26 114) the Hoare annotation is: (<= ULTIMATE.start_main_~main__x~0 (let ((.cse2 (div ULTIMATE.start_main_~main__x~0 4294967296))) (let ((.cse0 (* .cse2 (- 4294967296)))) (let ((.cse1 (div (+ ULTIMATE.start_main_~main__x~0 .cse0) 3))) (+ (* 4294967296 (div (+ ULTIMATE.start_main_~main__x~0 .cse0 (* .cse1 (- 3))) 4294967296)) (* 4294967296 .cse2) (* 3 .cse1)))))) [2020-11-28 03:12:05,189 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:12:05,189 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:12:05,189 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:12:05,189 INFO L274 CegarLoopResult]: For program point L90(lines 90 112) no Hoare annotation was computed. [2020-11-28 03:12:05,189 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-28 03:12:05,189 INFO L274 CegarLoopResult]: For program point L37(lines 37 113) no Hoare annotation was computed. [2020-11-28 03:12:05,189 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-11-28 03:12:05,190 INFO L274 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-11-28 03:12:05,190 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:12:05,190 INFO L274 CegarLoopResult]: For program point L128(lines 128 143) no Hoare annotation was computed. [2020-11-28 03:12:05,190 INFO L274 CegarLoopResult]: For program point L62(lines 62 84) no Hoare annotation was computed. [2020-11-28 03:12:05,190 INFO L274 CegarLoopResult]: For program point L25(lines 25 145) no Hoare annotation was computed. [2020-11-28 03:12:05,190 INFO L277 CegarLoopResult]: At program point L149(lines 16 151) the Hoare annotation is: true [2020-11-28 03:12:05,190 INFO L277 CegarLoopResult]: At program point L83(lines 17 151) the Hoare annotation is: true [2020-11-28 03:12:05,191 INFO L274 CegarLoopResult]: For program point L117(lines 117 144) no Hoare annotation was computed. [2020-11-28 03:12:05,191 INFO L277 CegarLoopResult]: At program point L142(lines 25 145) the Hoare annotation is: true [2020-11-28 03:12:05,191 INFO L274 CegarLoopResult]: For program point L39(lines 39 86) no Hoare annotation was computed. [2020-11-28 03:12:05,191 INFO L277 CegarLoopResult]: At program point L134(lines 25 145) the Hoare annotation is: true [2020-11-28 03:12:05,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:12:05 BoogieIcfgContainer [2020-11-28 03:12:05,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:12:05,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:12:05,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:12:05,226 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:12:05,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:53" (3/4) ... [2020-11-28 03:12:05,230 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:12:05,254 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 03:12:05,254 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:12:05,255 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:12:05,255 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:12:05,330 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b4a685d1-aa6f-4545-9b08-1402a6032631/bin/uautomizer/witness.graphml [2020-11-28 03:12:05,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:12:05,341 INFO L168 Benchmark]: Toolchain (without parser) took 13204.57 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 58.2 MB in the beginning and 48.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:05,341 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 88.1 MB. Free memory is still 45.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:12:05,342 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.10 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 58.0 MB in the beginning and 83.6 MB in the end (delta: -25.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:05,343 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.50 ms. Allocated memory is still 107.0 MB. Free memory was 83.1 MB in the beginning and 81.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:05,343 INFO L168 Benchmark]: Boogie Preprocessor took 25.93 ms. Allocated memory is still 107.0 MB. Free memory was 81.4 MB in the beginning and 80.5 MB in the end (delta: 941.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:05,344 INFO L168 Benchmark]: RCFGBuilder took 571.50 ms. Allocated memory is still 107.0 MB. Free memory was 80.5 MB in the beginning and 64.7 MB in the end (delta: 15.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:05,344 INFO L168 Benchmark]: TraceAbstraction took 12050.53 ms. Allocated memory is still 107.0 MB. Free memory was 64.2 MB in the beginning and 52.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:05,344 INFO L168 Benchmark]: Witness Printer took 113.40 ms. Allocated memory is still 107.0 MB. Free memory was 52.3 MB in the beginning and 48.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:05,348 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 88.1 MB. Free memory is still 45.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 380.10 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 58.0 MB in the beginning and 83.6 MB in the end (delta: -25.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.50 ms. Allocated memory is still 107.0 MB. Free memory was 83.1 MB in the beginning and 81.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.93 ms. Allocated memory is still 107.0 MB. Free memory was 81.4 MB in the beginning and 80.5 MB in the end (delta: 941.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 571.50 ms. Allocated memory is still 107.0 MB. Free memory was 80.5 MB in the beginning and 64.7 MB in the end (delta: 15.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12050.53 ms. Allocated memory is still 107.0 MB. Free memory was 64.2 MB in the beginning and 52.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. * Witness Printer took 113.40 ms. Allocated memory is still 107.0 MB. Free memory was 52.3 MB in the beginning and 48.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * ((main__x + main__x / 4294967296 * -4294967296 + (main__x + main__x / 4294967296 * -4294967296) / 3 * -3) / 4294967296) + 4294967296 * (main__x / 4294967296) + 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * ((main__x + main__x / 4294967296 * -4294967296 + (main__x + main__x / 4294967296 * -4294967296) / 3 * -3) / 4294967296) + 4294967296 * (main__x / 4294967296) + 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * ((main__x + main__x / 4294967296 * -4294967296 + (main__x + main__x / 4294967296 * -4294967296) / 3 * -3) / 4294967296) + 4294967296 * (main__x / 4294967296) + 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 17 SDslu, 74 SDs, 0 SdLazy, 43 SolverSat, 5 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 10.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=1, 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, 7 LocationsWithAnnotation, 7 PreInvPairs, 17 NumberOfFragments, 127 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 3644 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...