./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/mod3.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_16101867-4bf8-43d6-9a33-c2281a9b8b84/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_16101867-4bf8-43d6-9a33-c2281a9b8b84/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_16101867-4bf8-43d6-9a33-c2281a9b8b84/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_16101867-4bf8-43d6-9a33-c2281a9b8b84/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/mod3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_16101867-4bf8-43d6-9a33-c2281a9b8b84/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_16101867-4bf8-43d6-9a33-c2281a9b8b84/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 fb436d6177ee4ab6be6acbe7c4a410005aee8ab3 ................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:11:16,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:11:16,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:11:16,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:11:16,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:11:16,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:11:16,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:11:16,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:11:16,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:11:16,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:11:16,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:11:16,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:11:16,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:11:16,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:11:16,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:11:16,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:11:16,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:11:16,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:11:16,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:11:16,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:11:16,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:11:16,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:11:16,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:11:16,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:11:16,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:11:16,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:11:16,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:11:16,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:11:16,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:11:16,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:11:16,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:11:16,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:11:16,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:11:16,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:11:16,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:11:16,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:11:16,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:11:16,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:11:16,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:11:16,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:11:16,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:11:16,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_16101867-4bf8-43d6-9a33-c2281a9b8b84/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:11:16,320 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:11:16,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:11:16,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:11:16,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:11:16,322 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:11:16,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:11:16,322 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:11:16,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:11:16,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:11:16,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:11:16,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:11:16,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:11:16,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:11:16,323 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:11:16,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:11:16,324 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:11:16,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:11:16,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:11:16,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:11:16,325 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:11:16,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:11:16,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:11:16,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:11:16,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:11:16,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:11:16,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:11:16,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:11:16,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:11:16,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:11:16,327 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_16101867-4bf8-43d6-9a33-c2281a9b8b84/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_16101867-4bf8-43d6-9a33-c2281a9b8b84/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb436d6177ee4ab6be6acbe7c4a410005aee8ab3 [2020-11-28 03:11:16,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:11:16,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:11:16,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:11:16,635 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:11:16,637 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:11:16,638 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_16101867-4bf8-43d6-9a33-c2281a9b8b84/bin/uautomizer/../../sv-benchmarks/c/loop-industry-pattern/mod3.c [2020-11-28 03:11:16,713 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_16101867-4bf8-43d6-9a33-c2281a9b8b84/bin/uautomizer/data/ec9ce25bc/f5f936433c69486b941275c4d8bf3e52/FLAG7e0833b09 [2020-11-28 03:11:17,137 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:11:17,138 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_16101867-4bf8-43d6-9a33-c2281a9b8b84/sv-benchmarks/c/loop-industry-pattern/mod3.c [2020-11-28 03:11:17,149 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_16101867-4bf8-43d6-9a33-c2281a9b8b84/bin/uautomizer/data/ec9ce25bc/f5f936433c69486b941275c4d8bf3e52/FLAG7e0833b09 [2020-11-28 03:11:17,522 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_16101867-4bf8-43d6-9a33-c2281a9b8b84/bin/uautomizer/data/ec9ce25bc/f5f936433c69486b941275c4d8bf3e52 [2020-11-28 03:11:17,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:11:17,526 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:11:17,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:17,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:11:17,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:11:17,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:17" (1/1) ... [2020-11-28 03:11:17,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@576138f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:17, skipping insertion in model container [2020-11-28 03:11:17,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:17" (1/1) ... [2020-11-28 03:11:17,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:11:17,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:11:17,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:17,774 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:11:17,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:11:17,804 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:11:17,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:17 WrapperNode [2020-11-28 03:11:17,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:11:17,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:17,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:11:17,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:11:17,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:17" (1/1) ... [2020-11-28 03:11:17,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:17" (1/1) ... [2020-11-28 03:11:17,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:11:17,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:11:17,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:11:17,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:11:17,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:17" (1/1) ... [2020-11-28 03:11:17,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:17" (1/1) ... [2020-11-28 03:11:17,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:17" (1/1) ... [2020-11-28 03:11:17,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:17" (1/1) ... [2020-11-28 03:11:17,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:17" (1/1) ... [2020-11-28 03:11:17,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:17" (1/1) ... [2020-11-28 03:11:17,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:17" (1/1) ... [2020-11-28 03:11:17,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:11:17,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:11:17,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:11:17,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:11:17,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_16101867-4bf8-43d6-9a33-c2281a9b8b84/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 03:11:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:11:17,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:11:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:11:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:11:18,160 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:11:18,161 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:11:18,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:18 BoogieIcfgContainer [2020-11-28 03:11:18,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:11:18,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:11:18,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:11:18,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:11:18,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:11:17" (1/3) ... [2020-11-28 03:11:18,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1a6f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:18, skipping insertion in model container [2020-11-28 03:11:18,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:17" (2/3) ... [2020-11-28 03:11:18,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1a6f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:18, skipping insertion in model container [2020-11-28 03:11:18,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:18" (3/3) ... [2020-11-28 03:11:18,183 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c [2020-11-28 03:11:18,192 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:11:18,212 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:11:18,234 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:11:18,265 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:11:18,265 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:11:18,265 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:11:18,265 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:11:18,265 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:11:18,265 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:11:18,266 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:11:18,266 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:11:18,277 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-11-28 03:11:18,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 03:11:18,281 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:18,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:11:18,282 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:18,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:18,287 INFO L82 PathProgramCache]: Analyzing trace with hash 890278313, now seen corresponding path program 1 times [2020-11-28 03:11:18,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:18,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369805576] [2020-11-28 03:11:18,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:18,450 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 03:11:18,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369805576] [2020-11-28 03:11:18,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:18,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:11:18,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37056221] [2020-11-28 03:11:18,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:11:18,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:18,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:11:18,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:11:18,470 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2020-11-28 03:11:18,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:18,485 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2020-11-28 03:11:18,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:11:18,487 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-11-28 03:11:18,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:18,495 INFO L225 Difference]: With dead ends: 24 [2020-11-28 03:11:18,496 INFO L226 Difference]: Without dead ends: 11 [2020-11-28 03:11:18,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:11:18,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-28 03:11:18,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-28 03:11:18,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-28 03:11:18,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-11-28 03:11:18,529 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 14 transitions. Word has length 6 [2020-11-28 03:11:18,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:18,529 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-28 03:11:18,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:11:18,530 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2020-11-28 03:11:18,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:11:18,530 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:18,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:18,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:11:18,531 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:18,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:18,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1806865054, now seen corresponding path program 1 times [2020-11-28 03:11:18,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:18,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461859944] [2020-11-28 03:11:18,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:18,617 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 03:11:18,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461859944] [2020-11-28 03:11:18,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:18,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:11:18,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36500160] [2020-11-28 03:11:18,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:11:18,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:18,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:11:18,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:18,621 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand 3 states. [2020-11-28 03:11:18,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:18,686 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2020-11-28 03:11:18,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:11:18,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-28 03:11:18,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:18,688 INFO L225 Difference]: With dead ends: 20 [2020-11-28 03:11:18,688 INFO L226 Difference]: Without dead ends: 16 [2020-11-28 03:11:18,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:11:18,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-28 03:11:18,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2020-11-28 03:11:18,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-28 03:11:18,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-11-28 03:11:18,693 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 7 [2020-11-28 03:11:18,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:18,693 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-11-28 03:11:18,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:11:18,693 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-11-28 03:11:18,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:11:18,694 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:18,694 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:18,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:11:18,694 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:18,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:18,695 INFO L82 PathProgramCache]: Analyzing trace with hash 694220730, now seen corresponding path program 1 times [2020-11-28 03:11:18,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:18,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335230865] [2020-11-28 03:11:18,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:18,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:18,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335230865] [2020-11-28 03:11:18,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:18,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:11:18,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540411896] [2020-11-28 03:11:18,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:11:18,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:18,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:11:18,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:11:18,892 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 4 states. [2020-11-28 03:11:23,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:23,345 INFO L93 Difference]: Finished difference Result 31 states and 41 transitions. [2020-11-28 03:11:23,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:11:23,346 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-28 03:11:23,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:23,347 INFO L225 Difference]: With dead ends: 31 [2020-11-28 03:11:23,347 INFO L226 Difference]: Without dead ends: 18 [2020-11-28 03:11:23,348 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 [2020-11-28 03:11:23,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-28 03:11:23,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-11-28 03:11:23,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-28 03:11:23,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2020-11-28 03:11:23,351 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 10 [2020-11-28 03:11:23,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:23,352 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-11-28 03:11:23,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:11:23,352 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2020-11-28 03:11:23,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:11:23,352 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:11:23,352 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:11:23,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:11:23,352 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:11:23,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:11:23,353 INFO L82 PathProgramCache]: Analyzing trace with hash -2105263274, now seen corresponding path program 1 times [2020-11-28 03:11:23,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:11:23,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985271060] [2020-11-28 03:11:23,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:11:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:11:23,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:11:23,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985271060] [2020-11-28 03:11:23,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:11:23,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:11:23,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646074701] [2020-11-28 03:11:23,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:11:23,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:11:23,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:11:23,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:11:23,537 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 4 states. [2020-11-28 03:11:29,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:11:29,999 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2020-11-28 03:11:29,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:11:30,000 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-28 03:11:30,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:11:30,000 INFO L225 Difference]: With dead ends: 33 [2020-11-28 03:11:30,000 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:11:30,001 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 03:11:30,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:11:30,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:11:30,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:11:30,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:11:30,001 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-11-28 03:11:30,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:11:30,001 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:11:30,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:11:30,001 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:11:30,002 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:11:30,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:11:30,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:11:30,048 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:11:30,048 INFO L274 CegarLoopResult]: For program point L25(lines 25 28) no Hoare annotation was computed. [2020-11-28 03:11:30,049 INFO L270 CegarLoopResult]: At program point L25-2(lines 18 31) the Hoare annotation is: (or (= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 (let ((.cse2 (div ULTIMATE.start_main_~x~0 4294967296))) (let ((.cse1 (* .cse2 (- 4294967296)))) (let ((.cse0 (div (+ ULTIMATE.start_main_~x~0 .cse1) 3))) (+ (* 3 .cse0) (* 4294967296 (div (+ (* .cse0 (- 3)) ULTIMATE.start_main_~x~0 .cse1) 4294967296)) (* 4294967296 .cse2))))))) [2020-11-28 03:11:30,049 INFO L274 CegarLoopResult]: For program point L19(lines 19 30) no Hoare annotation was computed. [2020-11-28 03:11:30,049 INFO L274 CegarLoopResult]: For program point L9(lines 9 10) no Hoare annotation was computed. [2020-11-28 03:11:30,049 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:11:30,049 INFO L277 CegarLoopResult]: At program point L34(lines 14 35) the Hoare annotation is: true [2020-11-28 03:11:30,049 INFO L277 CegarLoopResult]: At program point L32(lines 32 33) the Hoare annotation is: true [2020-11-28 03:11:30,050 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:11:30,050 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:11:30,050 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:11:30,050 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:11:30,050 INFO L274 CegarLoopResult]: For program point L22(lines 22 29) no Hoare annotation was computed. [2020-11-28 03:11:30,050 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 31) no Hoare annotation was computed. [2020-11-28 03:11:30,050 INFO L274 CegarLoopResult]: For program point L18-3(lines 14 35) no Hoare annotation was computed. [2020-11-28 03:11:30,050 INFO L274 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-11-28 03:11:30,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:11:30 BoogieIcfgContainer [2020-11-28 03:11:30,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:11:30,081 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:11:30,081 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:11:30,081 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:11:30,084 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:18" (3/4) ... [2020-11-28 03:11:30,086 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:11:30,099 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-28 03:11:30,100 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 03:11:30,100 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:11:30,100 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:11:30,100 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:11:30,160 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_16101867-4bf8-43d6-9a33-c2281a9b8b84/bin/uautomizer/witness.graphml [2020-11-28 03:11:30,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:11:30,168 INFO L168 Benchmark]: Toolchain (without parser) took 12641.40 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 56.4 MB in the beginning and 65.0 MB in the end (delta: -8.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:30,169 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory was 72.9 MB in the beginning and 72.8 MB in the end (delta: 52.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:11:30,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.85 ms. Allocated memory is still 92.3 MB. Free memory was 56.1 MB in the beginning and 69.6 MB in the end (delta: -13.5 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:30,171 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.44 ms. Allocated memory is still 92.3 MB. Free memory was 69.5 MB in the beginning and 68.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:30,171 INFO L168 Benchmark]: Boogie Preprocessor took 20.02 ms. Allocated memory is still 92.3 MB. Free memory was 68.0 MB in the beginning and 66.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:11:30,175 INFO L168 Benchmark]: RCFGBuilder took 302.57 ms. Allocated memory is still 92.3 MB. Free memory was 66.9 MB in the beginning and 55.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:30,176 INFO L168 Benchmark]: TraceAbstraction took 11915.80 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 54.6 MB in the beginning and 67.7 MB in the end (delta: -13.1 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:30,178 INFO L168 Benchmark]: Witness Printer took 85.51 ms. Allocated memory is still 111.1 MB. Free memory was 67.2 MB in the beginning and 65.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:11:30,180 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory was 72.9 MB in the beginning and 72.8 MB in the end (delta: 52.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 277.85 ms. Allocated memory is still 92.3 MB. Free memory was 56.1 MB in the beginning and 69.6 MB in the end (delta: -13.5 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.44 ms. Allocated memory is still 92.3 MB. Free memory was 69.5 MB in the beginning and 68.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.02 ms. Allocated memory is still 92.3 MB. Free memory was 68.0 MB in the beginning and 66.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 302.57 ms. Allocated memory is still 92.3 MB. Free memory was 66.9 MB in the beginning and 55.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11915.80 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 54.6 MB in the beginning and 67.7 MB in the end (delta: -13.1 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * Witness Printer took 85.51 ms. Allocated memory is still 111.1 MB. Free memory was 67.2 MB in the beginning and 65.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 == y || x <= 3 * ((x + x / 4294967296 * -4294967296) / 3) + 4294967296 * (((x + x / 4294967296 * -4294967296) / 3 * -3 + x + x / 4294967296 * -4294967296) / 4294967296) + 4294967296 * (x / 4294967296) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.7s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 11 SDslu, 44 SDs, 0 SdLazy, 35 SolverSat, 8 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 10.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=3, 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 47 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 2615 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...