./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-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_d06fe96b-67fb-47cd-879d-d400f96f2124/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d06fe96b-67fb-47cd-879d-d400f96f2124/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d06fe96b-67fb-47cd-879d-d400f96f2124/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d06fe96b-67fb-47cd-879d-d400f96f2124/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d06fe96b-67fb-47cd-879d-d400f96f2124/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d06fe96b-67fb-47cd-879d-d400f96f2124/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 aeb2c2f6d8fcd33ad55644c16c42ea82f5ce9b6c ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:25:49,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:25:49,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:25:49,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:25:49,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:25:49,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:25:49,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:25:49,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:25:49,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:25:49,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:25:49,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:25:49,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:25:49,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:25:49,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:25:49,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:25:49,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:25:49,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:25:49,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:25:49,542 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:25:49,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:25:49,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:25:49,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:25:49,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:25:49,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:25:49,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:25:49,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:25:49,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:25:49,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:25:49,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:25:49,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:25:49,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:25:49,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:25:49,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:25:49,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:25:49,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:25:49,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:25:49,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:25:49,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:25:49,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:25:49,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:25:49,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:25:49,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d06fe96b-67fb-47cd-879d-d400f96f2124/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:25:49,598 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:25:49,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:25:49,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:25:49,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:25:49,600 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:25:49,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:25:49,600 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:25:49,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:25:49,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:25:49,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:25:49,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:25:49,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:25:49,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:25:49,602 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:25:49,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:25:49,602 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:25:49,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:25:49,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:25:49,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:25:49,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:25:49,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:25:49,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:25:49,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:25:49,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:25:49,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:25:49,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:25:49,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:25:49,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:25:49,605 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:25:49,605 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_d06fe96b-67fb-47cd-879d-d400f96f2124/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d06fe96b-67fb-47cd-879d-d400f96f2124/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aeb2c2f6d8fcd33ad55644c16c42ea82f5ce9b6c [2020-11-29 19:25:49,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:25:49,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:25:49,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:25:49,921 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:25:49,923 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:25:49,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d06fe96b-67fb-47cd-879d-d400f96f2124/bin/uautomizer/../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2020-11-29 19:25:50,017 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d06fe96b-67fb-47cd-879d-d400f96f2124/bin/uautomizer/data/8eb339bf5/27ebcdaa1f03454d9b46164cfb378e89/FLAG13c4cf974 [2020-11-29 19:25:50,575 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:25:50,576 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d06fe96b-67fb-47cd-879d-d400f96f2124/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2020-11-29 19:25:50,586 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d06fe96b-67fb-47cd-879d-d400f96f2124/bin/uautomizer/data/8eb339bf5/27ebcdaa1f03454d9b46164cfb378e89/FLAG13c4cf974 [2020-11-29 19:25:50,950 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d06fe96b-67fb-47cd-879d-d400f96f2124/bin/uautomizer/data/8eb339bf5/27ebcdaa1f03454d9b46164cfb378e89 [2020-11-29 19:25:50,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:25:50,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:25:50,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:25:50,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:25:50,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:25:50,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:25:50" (1/1) ... [2020-11-29 19:25:50,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4101ca2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:50, skipping insertion in model container [2020-11-29 19:25:50,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:25:50" (1/1) ... [2020-11-29 19:25:50,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:25:51,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:25:51,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:25:51,212 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:25:51,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:25:51,256 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:25:51,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:51 WrapperNode [2020-11-29 19:25:51,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:25:51,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:25:51,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:25:51,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:25:51,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:51" (1/1) ... [2020-11-29 19:25:51,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:51" (1/1) ... [2020-11-29 19:25:51,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:25:51,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:25:51,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:25:51,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:25:51,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:51" (1/1) ... [2020-11-29 19:25:51,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:51" (1/1) ... [2020-11-29 19:25:51,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:51" (1/1) ... [2020-11-29 19:25:51,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:51" (1/1) ... [2020-11-29 19:25:51,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:51" (1/1) ... [2020-11-29 19:25:51,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:51" (1/1) ... [2020-11-29 19:25:51,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:51" (1/1) ... [2020-11-29 19:25:51,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:25:51,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:25:51,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:25:51,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:25:51,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d06fe96b-67fb-47cd-879d-d400f96f2124/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:25:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:25:51,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:25:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:25:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:25:51,789 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:25:51,789 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 19:25:51,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:25:51 BoogieIcfgContainer [2020-11-29 19:25:51,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:25:51,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:25:51,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:25:51,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:25:51,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:25:50" (1/3) ... [2020-11-29 19:25:51,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23899173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:25:51, skipping insertion in model container [2020-11-29 19:25:51,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:25:51" (2/3) ... [2020-11-29 19:25:51,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23899173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:25:51, skipping insertion in model container [2020-11-29 19:25:51,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:25:51" (3/3) ... [2020-11-29 19:25:51,801 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c.v+sep-reducer.c [2020-11-29 19:25:51,813 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:25:51,817 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:25:51,831 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:25:51,865 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:25:51,866 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:25:51,866 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:25:51,866 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:25:51,866 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:25:51,866 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:25:51,867 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:25:51,867 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:25:51,881 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-11-29 19:25:51,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 19:25:51,887 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:25:51,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:25:51,888 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:25:51,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:25:51,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1060254097, now seen corresponding path program 1 times [2020-11-29 19:25:51,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:25:51,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958701355] [2020-11-29 19:25:51,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:25:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:25:52,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:25:52,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958701355] [2020-11-29 19:25:52,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:25:52,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:25:52,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928123817] [2020-11-29 19:25:52,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:25:52,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:25:52,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:25:52,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:25:52,453 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2020-11-29 19:26:01,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:26:01,146 INFO L93 Difference]: Finished difference Result 62 states and 83 transitions. [2020-11-29 19:26:01,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:26:01,149 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-29 19:26:01,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:26:01,162 INFO L225 Difference]: With dead ends: 62 [2020-11-29 19:26:01,163 INFO L226 Difference]: Without dead ends: 26 [2020-11-29 19:26:01,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:26:01,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-11-29 19:26:01,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2020-11-29 19:26:01,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-29 19:26:01,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2020-11-29 19:26:01,210 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 11 [2020-11-29 19:26:01,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:26:01,210 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2020-11-29 19:26:01,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:26:01,212 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2020-11-29 19:26:01,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 19:26:01,213 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:26:01,213 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:26:01,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:26:01,215 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:26:01,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:26:01,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1251142831, now seen corresponding path program 1 times [2020-11-29 19:26:01,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:26:01,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061368045] [2020-11-29 19:26:01,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:26:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:26:01,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:26:01,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061368045] [2020-11-29 19:26:01,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:26:01,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:26:01,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163440642] [2020-11-29 19:26:01,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:26:01,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:26:01,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:26:01,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:26:01,376 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand 4 states. [2020-11-29 19:26:05,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:26:05,796 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2020-11-29 19:26:05,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:26:05,798 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-29 19:26:05,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:26:05,798 INFO L225 Difference]: With dead ends: 46 [2020-11-29 19:26:05,798 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 19:26:05,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:26:05,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 19:26:05,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 19:26:05,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 19:26:05,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:26:05,802 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-29 19:26:05,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:26:05,802 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:26:05,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:26:05,803 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:26:05,803 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:26:05,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:26:05,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 19:26:05,849 INFO L274 CegarLoopResult]: For program point L56(lines 56 83) no Hoare annotation was computed. [2020-11-29 19:26:05,849 INFO L270 CegarLoopResult]: At program point L52(lines 24 141) 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)))))) [2020-11-29 19:26:05,849 INFO L277 CegarLoopResult]: At program point L135(lines 35 140) the Hoare annotation is: true [2020-11-29 19:26:05,850 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 19:26:05,850 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 19:26:05,850 INFO L270 CegarLoopResult]: At program point L61(lines 36 112) 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)))))) [2020-11-29 19:26:05,850 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 19:26:05,850 INFO L277 CegarLoopResult]: At program point L123(lines 35 140) the Hoare annotation is: true [2020-11-29 19:26:05,850 INFO L274 CegarLoopResult]: For program point L24(lines 24 141) no Hoare annotation was computed. [2020-11-29 19:26:05,851 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-29 19:26:05,851 INFO L274 CegarLoopResult]: For program point L45(lines 45 111) no Hoare annotation was computed. [2020-11-29 19:26:05,851 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-11-29 19:26:05,851 INFO L274 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-11-29 19:26:05,851 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 19:26:05,851 INFO L274 CegarLoopResult]: For program point L95(lines 95 104) no Hoare annotation was computed. [2020-11-29 19:26:05,852 INFO L277 CegarLoopResult]: At program point L145(lines 15 147) the Hoare annotation is: true [2020-11-29 19:26:05,852 INFO L270 CegarLoopResult]: At program point L42(lines 24 141) 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)))))) [2020-11-29 19:26:05,852 INFO L274 CegarLoopResult]: For program point L67(lines 67 82) no Hoare annotation was computed. [2020-11-29 19:26:05,852 INFO L274 CegarLoopResult]: For program point L88(lines 88 110) no Hoare annotation was computed. [2020-11-29 19:26:05,852 INFO L274 CegarLoopResult]: For program point L22(lines 22 146) no Hoare annotation was computed. [2020-11-29 19:26:05,857 INFO L274 CegarLoopResult]: For program point L117(lines 117 139) no Hoare annotation was computed. [2020-11-29 19:26:05,857 INFO L274 CegarLoopResult]: For program point L47(lines 47 84) no Hoare annotation was computed. [2020-11-29 19:26:05,857 INFO L277 CegarLoopResult]: At program point L138(lines 16 147) the Hoare annotation is: true [2020-11-29 19:26:05,858 INFO L274 CegarLoopResult]: For program point L35(lines 35 140) no Hoare annotation was computed. [2020-11-29 19:26:05,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:26:05 BoogieIcfgContainer [2020-11-29 19:26:05,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:26:05,902 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:26:05,902 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:26:05,902 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:26:05,903 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:25:51" (3/4) ... [2020-11-29 19:26:05,908 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:26:05,930 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-29 19:26:05,930 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 19:26:05,931 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:26:05,931 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:26:06,032 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d06fe96b-67fb-47cd-879d-d400f96f2124/bin/uautomizer/witness.graphml [2020-11-29 19:26:06,032 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:26:06,035 INFO L168 Benchmark]: Toolchain (without parser) took 15079.31 ms. Allocated memory was 98.6 MB in the beginning and 136.3 MB in the end (delta: 37.7 MB). Free memory was 62.5 MB in the beginning and 73.1 MB in the end (delta: -10.6 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:26:06,036 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory was 78.5 MB in the beginning and 78.4 MB in the end (delta: 61.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:26:06,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.55 ms. Allocated memory is still 98.6 MB. Free memory was 62.3 MB in the beginning and 74.3 MB in the end (delta: -12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:26:06,037 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.38 ms. Allocated memory is still 98.6 MB. Free memory was 74.3 MB in the beginning and 72.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:26:06,038 INFO L168 Benchmark]: Boogie Preprocessor took 23.09 ms. Allocated memory is still 98.6 MB. Free memory was 72.8 MB in the beginning and 71.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:26:06,038 INFO L168 Benchmark]: RCFGBuilder took 470.86 ms. Allocated memory is still 98.6 MB. Free memory was 71.6 MB in the beginning and 56.0 MB in the end (delta: 15.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:26:06,039 INFO L168 Benchmark]: TraceAbstraction took 14108.11 ms. Allocated memory was 98.6 MB in the beginning and 136.3 MB in the end (delta: 37.7 MB). Free memory was 55.7 MB in the beginning and 77.3 MB in the end (delta: -21.5 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2020-11-29 19:26:06,039 INFO L168 Benchmark]: Witness Printer took 130.98 ms. Allocated memory is still 136.3 MB. Free memory was 77.3 MB in the beginning and 73.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:26:06,044 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory was 78.5 MB in the beginning and 78.4 MB in the end (delta: 61.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 296.55 ms. Allocated memory is still 98.6 MB. Free memory was 62.3 MB in the beginning and 74.3 MB in the end (delta: -12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.38 ms. Allocated memory is still 98.6 MB. Free memory was 74.3 MB in the beginning and 72.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.09 ms. Allocated memory is still 98.6 MB. Free memory was 72.8 MB in the beginning and 71.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 470.86 ms. Allocated memory is still 98.6 MB. Free memory was 71.6 MB in the beginning and 56.0 MB in the end (delta: 15.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14108.11 ms. Allocated memory was 98.6 MB in the beginning and 136.3 MB in the end (delta: 37.7 MB). Free memory was 55.7 MB in the beginning and 77.3 MB in the end (delta: -21.5 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. * Witness Printer took 130.98 ms. Allocated memory is still 136.3 MB. Free memory was 77.3 MB in the beginning and 73.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: 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: 35]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: 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: 24]: 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) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 13.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 17 SDslu, 74 SDs, 0 SdLazy, 42 SolverSat, 5 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 12.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 0.1s 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...