./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Parallel.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_deaa84d8-92b5-4681-85ed-6c45bb3c9ffb/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_deaa84d8-92b5-4681-85ed-6c45bb3c9ffb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_deaa84d8-92b5-4681-85ed-6c45bb3c9ffb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_deaa84d8-92b5-4681-85ed-6c45bb3c9ffb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Parallel.c -s /tmp/vcloud-vcloud-master/worker/run_dir_deaa84d8-92b5-4681-85ed-6c45bb3c9ffb/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_deaa84d8-92b5-4681-85ed-6c45bb3c9ffb/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fa16f28cdab01c0d49bf2bd46e148912a30ce280 ................................................................................................................................................................................................................................................................................................................................................................................................ 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 22:51:04,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:51:04,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:51:04,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:51:04,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:51:04,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:51:04,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:51:04,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:51:04,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:51:04,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:51:04,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:51:04,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:51:04,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:51:04,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:51:04,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:51:04,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:51:04,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:51:04,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:51:04,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:51:04,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:51:04,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:51:04,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:51:04,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:51:04,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:51:04,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:51:04,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:51:04,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:51:04,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:51:04,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:51:04,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:51:04,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:51:04,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:51:04,491 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:51:04,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:51:04,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:51:04,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:51:04,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:51:04,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:51:04,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:51:04,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:51:04,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:51:04,502 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_deaa84d8-92b5-4681-85ed-6c45bb3c9ffb/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-29 22:51:04,542 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:51:04,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:51:04,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:51:04,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:51:04,545 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:51:04,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:51:04,545 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:51:04,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:51:04,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:51:04,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:51:04,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:51:04,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:51:04,547 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 22:51:04,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:51:04,547 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:51:04,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:51:04,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:51:04,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:51:04,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:51:04,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:51:04,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:51:04,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:51:04,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:51:04,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:51:04,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:51:04,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:51:04,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:51:04,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:51:04,550 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_deaa84d8-92b5-4681-85ed-6c45bb3c9ffb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_deaa84d8-92b5-4681-85ed-6c45bb3c9ffb/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa16f28cdab01c0d49bf2bd46e148912a30ce280 [2020-11-29 22:51:04,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:51:04,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:51:04,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:51:04,809 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:51:04,819 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:51:04,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_deaa84d8-92b5-4681-85ed-6c45bb3c9ffb/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Parallel.c [2020-11-29 22:51:04,903 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_deaa84d8-92b5-4681-85ed-6c45bb3c9ffb/bin/uautomizer/data/2d19e28a1/862168aed97240a2a7385e9bb6539494/FLAG4a1fdab1c [2020-11-29 22:51:05,354 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:51:05,355 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_deaa84d8-92b5-4681-85ed-6c45bb3c9ffb/sv-benchmarks/c/termination-crafted/Parallel.c [2020-11-29 22:51:05,361 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_deaa84d8-92b5-4681-85ed-6c45bb3c9ffb/bin/uautomizer/data/2d19e28a1/862168aed97240a2a7385e9bb6539494/FLAG4a1fdab1c [2020-11-29 22:51:05,749 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_deaa84d8-92b5-4681-85ed-6c45bb3c9ffb/bin/uautomizer/data/2d19e28a1/862168aed97240a2a7385e9bb6539494 [2020-11-29 22:51:05,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:51:05,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:51:05,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:51:05,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:51:05,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:51:05,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e942af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05, skipping insertion in model container [2020-11-29 22:51:05,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:51:05,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:51:05,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:51:05,911 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:51:05,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:51:05,933 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:51:05,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05 WrapperNode [2020-11-29 22:51:05,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:51:05,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:51:05,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:51:05,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:51:05,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:51:05,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:51:05,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:51:05,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:51:05,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... [2020-11-29 22:51:05,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:51:05,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:51:05,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:51:05,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:51:05,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_deaa84d8-92b5-4681-85ed-6c45bb3c9ffb/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 22:51:06,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:51:06,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:51:06,228 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:51:06,229 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 22:51:06,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:51:06 BoogieIcfgContainer [2020-11-29 22:51:06,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:51:06,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:51:06,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:51:06,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:51:06,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:51:05" (1/3) ... [2020-11-29 22:51:06,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5516fa79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:51:06, skipping insertion in model container [2020-11-29 22:51:06,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:51:05" (2/3) ... [2020-11-29 22:51:06,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5516fa79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:51:06, skipping insertion in model container [2020-11-29 22:51:06,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:51:06" (3/3) ... [2020-11-29 22:51:06,250 INFO L111 eAbstractionObserver]: Analyzing ICFG Parallel.c [2020-11-29 22:51:06,261 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:51:06,266 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-29 22:51:06,284 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-29 22:51:06,307 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:51:06,307 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:51:06,307 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:51:06,308 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:51:06,308 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:51:06,308 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:51:06,308 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:51:06,308 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:51:06,320 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-11-29 22:51:06,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 22:51:06,325 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:51:06,326 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 22:51:06,327 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:51:06,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:51:06,333 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2020-11-29 22:51:06,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:51:06,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989594170] [2020-11-29 22:51:06,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:51:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:51:06,610 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 22:51:06,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989594170] [2020-11-29 22:51:06,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:51:06,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-29 22:51:06,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753935206] [2020-11-29 22:51:06,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:51:06,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:51:06,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:51:06,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:51:06,646 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-11-29 22:51:06,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:51:06,687 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-11-29 22:51:06,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:51:06,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-29 22:51:06,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:51:06,698 INFO L225 Difference]: With dead ends: 19 [2020-11-29 22:51:06,698 INFO L226 Difference]: Without dead ends: 10 [2020-11-29 22:51:06,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:51:06,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-11-29 22:51:06,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-29 22:51:06,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-29 22:51:06,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2020-11-29 22:51:06,748 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2020-11-29 22:51:06,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:51:06,749 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2020-11-29 22:51:06,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:51:06,749 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-11-29 22:51:06,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 22:51:06,750 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:51:06,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 22:51:06,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:51:06,750 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:51:06,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:51:06,751 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2020-11-29 22:51:06,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:51:06,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773904384] [2020-11-29 22:51:06,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:51:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:51:06,819 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 22:51:06,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773904384] [2020-11-29 22:51:06,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:51:06,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-29 22:51:06,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097343547] [2020-11-29 22:51:06,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:51:06,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:51:06,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:51:06,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:51:06,823 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2020-11-29 22:51:06,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:51:06,861 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2020-11-29 22:51:06,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:51:06,862 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-29 22:51:06,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:51:06,862 INFO L225 Difference]: With dead ends: 10 [2020-11-29 22:51:06,862 INFO L226 Difference]: Without dead ends: 9 [2020-11-29 22:51:06,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:51:06,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-11-29 22:51:06,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-29 22:51:06,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-29 22:51:06,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2020-11-29 22:51:06,866 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 4 [2020-11-29 22:51:06,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:51:06,867 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-11-29 22:51:06,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:51:06,867 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2020-11-29 22:51:06,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 22:51:06,867 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:51:06,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-29 22:51:06,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:51:06,868 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:51:06,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:51:06,869 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2020-11-29 22:51:06,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:51:06,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350546394] [2020-11-29 22:51:06,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:51:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:51:06,942 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 22:51:06,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350546394] [2020-11-29 22:51:06,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:51:06,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:51:06,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068427193] [2020-11-29 22:51:06,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:51:06,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:51:06,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:51:06,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:51:06,946 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 4 states. [2020-11-29 22:51:06,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:51:06,972 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2020-11-29 22:51:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:51:06,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-29 22:51:06,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:51:06,973 INFO L225 Difference]: With dead ends: 9 [2020-11-29 22:51:06,974 INFO L226 Difference]: Without dead ends: 8 [2020-11-29 22:51:06,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:51:06,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-11-29 22:51:06,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-11-29 22:51:06,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-29 22:51:06,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2020-11-29 22:51:06,977 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 5 [2020-11-29 22:51:06,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:51:06,978 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2020-11-29 22:51:06,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:51:06,978 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-11-29 22:51:06,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 22:51:06,979 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:51:06,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-29 22:51:06,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 22:51:06,979 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 22:51:06,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:51:06,980 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2020-11-29 22:51:06,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:51:06,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759722938] [2020-11-29 22:51:06,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:51:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:51:06,999 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 22:51:07,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759722938] [2020-11-29 22:51:07,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:51:07,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:51:07,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602649369] [2020-11-29 22:51:07,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:51:07,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:51:07,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:51:07,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:51:07,002 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 3 states. [2020-11-29 22:51:07,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:51:07,014 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2020-11-29 22:51:07,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:51:07,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-29 22:51:07,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:51:07,016 INFO L225 Difference]: With dead ends: 8 [2020-11-29 22:51:07,016 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 22:51:07,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:51:07,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 22:51:07,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 22:51:07,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 22:51:07,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 22:51:07,017 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-11-29 22:51:07,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:51:07,018 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:51:07,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:51:07,018 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:51:07,018 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 22:51:07,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 22:51:07,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 22:51:07,040 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-11-29 22:51:07,040 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 22:51:07,041 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2020-11-29 22:51:07,041 INFO L270 CegarLoopResult]: At program point L29(lines 17 30) the Hoare annotation is: (<= ULTIMATE.start_main_~y~0 2147483647) [2020-11-29 22:51:07,041 INFO L274 CegarLoopResult]: For program point L23(lines 23 27) no Hoare annotation was computed. [2020-11-29 22:51:07,041 INFO L270 CegarLoopResult]: At program point L23-2(lines 22 28) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2020-11-29 22:51:07,042 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-11-29 22:51:07,042 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2020-11-29 22:51:07,042 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 22:51:07,042 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 22:51:07,042 INFO L274 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-11-29 22:51:07,042 INFO L274 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-11-29 22:51:07,042 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-11-29 22:51:07,043 INFO L274 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-11-29 22:51:07,043 INFO L274 CegarLoopResult]: For program point L22-2(lines 22 28) no Hoare annotation was computed. [2020-11-29 22:51:07,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:51:07 BoogieIcfgContainer [2020-11-29 22:51:07,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:51:07,059 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:51:07,059 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:51:07,059 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:51:07,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:51:06" (3/4) ... [2020-11-29 22:51:07,063 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 22:51:07,074 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-29 22:51:07,075 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 22:51:07,124 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_deaa84d8-92b5-4681-85ed-6c45bb3c9ffb/bin/uautomizer/witness.graphml [2020-11-29 22:51:07,124 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:51:07,127 INFO L168 Benchmark]: Toolchain (without parser) took 1372.23 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 61.5 MB in the beginning and 64.3 MB in the end (delta: -2.9 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:51:07,128 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 88.1 MB. Free memory was 58.3 MB in the beginning and 58.3 MB in the end (delta: 52.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:51:07,129 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.94 ms. Allocated memory is still 88.1 MB. Free memory was 61.3 MB in the beginning and 52.9 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:51:07,130 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.28 ms. Allocated memory is still 88.1 MB. Free memory was 52.9 MB in the beginning and 51.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:51:07,131 INFO L168 Benchmark]: Boogie Preprocessor took 15.49 ms. Allocated memory is still 88.1 MB. Free memory was 51.5 MB in the beginning and 50.7 MB in the end (delta: 836.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:51:07,131 INFO L168 Benchmark]: RCFGBuilder took 248.82 ms. Allocated memory is still 88.1 MB. Free memory was 50.7 MB in the beginning and 41.9 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:51:07,132 INFO L168 Benchmark]: TraceAbstraction took 826.10 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 41.5 MB in the beginning and 67.3 MB in the end (delta: -25.8 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:51:07,133 INFO L168 Benchmark]: Witness Printer took 65.89 ms. Allocated memory is still 115.3 MB. Free memory was 66.5 MB in the beginning and 64.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:51:07,141 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 88.1 MB. Free memory was 58.3 MB in the beginning and 58.3 MB in the end (delta: 52.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 179.94 ms. Allocated memory is still 88.1 MB. Free memory was 61.3 MB in the beginning and 52.9 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.28 ms. Allocated memory is still 88.1 MB. Free memory was 52.9 MB in the beginning and 51.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.49 ms. Allocated memory is still 88.1 MB. Free memory was 51.5 MB in the beginning and 50.7 MB in the end (delta: 836.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 248.82 ms. Allocated memory is still 88.1 MB. Free memory was 50.7 MB in the beginning and 41.9 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 826.10 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 41.5 MB in the beginning and 67.3 MB in the end (delta: -25.8 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. * Witness Printer took 65.89 ms. Allocated memory is still 115.3 MB. Free memory was 66.5 MB in the beginning and 64.3 MB in the end (delta: 2.2 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: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 22 SDslu, 2 SDs, 0 SdLazy, 30 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...