./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 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/Parallel.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.2.0-5485861 [2020-10-26 04:02:48,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:02:48,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:02:48,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:02:48,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:02:48,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:02:48,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:02:48,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:02:48,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:02:48,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:02:48,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:02:48,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:02:48,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:02:48,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:02:48,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:02:48,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:02:48,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:02:48,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:02:48,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:02:48,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:02:48,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:02:48,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:02:48,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:02:48,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:02:48,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:02:48,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:02:48,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:02:48,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:02:48,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:02:48,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:02:48,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:02:48,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:02:48,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:02:48,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:02:48,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:02:48,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:02:48,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:02:48,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:02:48,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:02:48,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:02:48,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:02:48,706 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-26 04:02:48,765 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:02:48,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:02:48,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:02:48,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:02:48,771 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:02:48,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:02:48,771 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:02:48,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:02:48,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:02:48,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:02:48,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:02:48,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:02:48,774 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:02:48,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:02:48,774 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:02:48,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:02:48,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:02:48,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:02:48,775 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:02:48,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:02:48,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:02:48,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:02:48,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:02:48,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:02:48,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:02:48,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:02:48,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:02:48,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:02:48,778 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa16f28cdab01c0d49bf2bd46e148912a30ce280 [2020-10-26 04:02:49,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:02:49,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:02:49,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:02:49,260 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:02:49,261 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:02:49,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Parallel.c [2020-10-26 04:02:49,362 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/403316c2c/e5938098085c46b58f0c1f0f2192f9ee/FLAG0d470a99d [2020-10-26 04:02:49,966 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:02:49,967 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Parallel.c [2020-10-26 04:02:49,974 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/403316c2c/e5938098085c46b58f0c1f0f2192f9ee/FLAG0d470a99d [2020-10-26 04:02:50,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/403316c2c/e5938098085c46b58f0c1f0f2192f9ee [2020-10-26 04:02:50,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:02:50,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:02:50,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:02:50,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:02:50,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:02:50,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:02:50" (1/1) ... [2020-10-26 04:02:50,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18113e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:50, skipping insertion in model container [2020-10-26 04:02:50,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:02:50" (1/1) ... [2020-10-26 04:02:50,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:02:50,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:02:50,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:02:50,543 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:02:50,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:02:50,575 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:02:50,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:50 WrapperNode [2020-10-26 04:02:50,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:02:50,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:02:50,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:02:50,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:02:50,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:50" (1/1) ... [2020-10-26 04:02:50,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:50" (1/1) ... [2020-10-26 04:02:50,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:02:50,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:02:50,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:02:50,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:02:50,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:50" (1/1) ... [2020-10-26 04:02:50,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:50" (1/1) ... [2020-10-26 04:02:50,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:50" (1/1) ... [2020-10-26 04:02:50,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:50" (1/1) ... [2020-10-26 04:02:50,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:50" (1/1) ... [2020-10-26 04:02:50,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:50" (1/1) ... [2020-10-26 04:02:50,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:50" (1/1) ... [2020-10-26 04:02:50,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:02:50,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:02:50,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:02:50,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:02:50,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-26 04:02:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:02:50,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:02:50,888 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:02:50,889 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:02:50,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:50 BoogieIcfgContainer [2020-10-26 04:02:50,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:02:50,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:02:50,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:02:50,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:02:50,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:02:50" (1/3) ... [2020-10-26 04:02:50,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d1ad14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:02:50, skipping insertion in model container [2020-10-26 04:02:50,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:50" (2/3) ... [2020-10-26 04:02:50,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d1ad14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:02:50, skipping insertion in model container [2020-10-26 04:02:50,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:50" (3/3) ... [2020-10-26 04:02:50,903 INFO L111 eAbstractionObserver]: Analyzing ICFG Parallel.c [2020-10-26 04:02:50,918 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:02:50,923 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-26 04:02:50,939 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-26 04:02:50,969 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:02:50,970 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:02:50,970 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:02:50,970 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:02:50,971 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:02:50,971 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:02:50,971 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:02:50,971 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:02:50,989 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-10-26 04:02:50,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-26 04:02:50,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:50,997 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-26 04:02:50,997 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:02:51,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:51,005 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2020-10-26 04:02:51,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:51,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874181263] [2020-10-26 04:02:51,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:51,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:51,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874181263] [2020-10-26 04:02:51,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:02:51,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:02:51,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677474894] [2020-10-26 04:02:51,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:02:51,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:51,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:02:51,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:02:51,234 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-10-26 04:02:51,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:51,276 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-10-26 04:02:51,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:02:51,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-26 04:02:51,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:51,291 INFO L225 Difference]: With dead ends: 19 [2020-10-26 04:02:51,291 INFO L226 Difference]: Without dead ends: 10 [2020-10-26 04:02:51,295 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 [2020-10-26 04:02:51,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-10-26 04:02:51,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-10-26 04:02:51,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-26 04:02:51,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2020-10-26 04:02:51,361 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2020-10-26 04:02:51,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:51,361 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2020-10-26 04:02:51,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:02:51,361 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-10-26 04:02:51,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-26 04:02:51,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:51,362 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-26 04:02:51,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 04:02:51,363 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:02:51,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:51,364 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2020-10-26 04:02:51,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:51,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509316478] [2020-10-26 04:02:51,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:51,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:51,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509316478] [2020-10-26 04:02:51,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:02:51,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-26 04:02:51,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979948707] [2020-10-26 04:02:51,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:02:51,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:51,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:02:51,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:02:51,394 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2020-10-26 04:02:51,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:51,417 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2020-10-26 04:02:51,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:02:51,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-26 04:02:51,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:51,418 INFO L225 Difference]: With dead ends: 10 [2020-10-26 04:02:51,419 INFO L226 Difference]: Without dead ends: 9 [2020-10-26 04:02:51,420 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 [2020-10-26 04:02:51,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-10-26 04:02:51,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-10-26 04:02:51,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-26 04:02:51,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2020-10-26 04:02:51,422 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 4 [2020-10-26 04:02:51,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:51,423 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-10-26 04:02:51,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:02:51,423 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2020-10-26 04:02:51,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-26 04:02:51,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:51,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-26 04:02:51,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 04:02:51,424 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:02:51,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:51,425 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2020-10-26 04:02:51,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:51,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142463018] [2020-10-26 04:02:51,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:51,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:51,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142463018] [2020-10-26 04:02:51,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:02:51,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 04:02:51,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348861335] [2020-10-26 04:02:51,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 04:02:51,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:51,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 04:02:51,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-26 04:02:51,472 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 4 states. [2020-10-26 04:02:51,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:51,520 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2020-10-26 04:02:51,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 04:02:51,521 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-10-26 04:02:51,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:51,521 INFO L225 Difference]: With dead ends: 9 [2020-10-26 04:02:51,522 INFO L226 Difference]: Without dead ends: 8 [2020-10-26 04:02:51,522 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 [2020-10-26 04:02:51,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-10-26 04:02:51,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-10-26 04:02:51,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-26 04:02:51,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2020-10-26 04:02:51,525 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 5 [2020-10-26 04:02:51,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:51,525 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2020-10-26 04:02:51,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 04:02:51,526 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-10-26 04:02:51,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-26 04:02:51,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 04:02:51,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-26 04:02:51,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 04:02:51,527 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-26 04:02:51,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:02:51,528 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2020-10-26 04:02:51,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:02:51,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62994698] [2020-10-26 04:02:51,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:02:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:02:51,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:02:51,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62994698] [2020-10-26 04:02:51,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:02:51,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 04:02:51,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697298187] [2020-10-26 04:02:51,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 04:02:51,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:02:51,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:02:51,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:02:51,571 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 3 states. [2020-10-26 04:02:51,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:02:51,605 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2020-10-26 04:02:51,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:02:51,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-26 04:02:51,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 04:02:51,607 INFO L225 Difference]: With dead ends: 8 [2020-10-26 04:02:51,607 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 04:02:51,608 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 [2020-10-26 04:02:51,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 04:02:51,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 04:02:51,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 04:02:51,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 04:02:51,610 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-10-26 04:02:51,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 04:02:51,610 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:02:51,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 04:02:51,611 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:02:51,611 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 04:02:51,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 04:02:51,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 04:02:51,655 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-10-26 04:02:51,655 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 04:02:51,655 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2020-10-26 04:02:51,655 INFO L270 CegarLoopResult]: At program point L29(lines 17 30) the Hoare annotation is: (<= ULTIMATE.start_main_~y~0 2147483647) [2020-10-26 04:02:51,656 INFO L274 CegarLoopResult]: For program point L23(lines 23 27) no Hoare annotation was computed. [2020-10-26 04:02:51,657 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)) [2020-10-26 04:02:51,657 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-10-26 04:02:51,657 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2020-10-26 04:02:51,657 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-26 04:02:51,657 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 04:02:51,658 INFO L274 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-10-26 04:02:51,658 INFO L274 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-10-26 04:02:51,658 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 04:02:51,658 INFO L274 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-10-26 04:02:51,658 INFO L274 CegarLoopResult]: For program point L22-2(lines 22 28) no Hoare annotation was computed. [2020-10-26 04:02:51,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:02:51 BoogieIcfgContainer [2020-10-26 04:02:51,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:02:51,678 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:02:51,678 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:02:51,678 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:02:51,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:50" (3/4) ... [2020-10-26 04:02:51,683 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 04:02:51,694 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-26 04:02:51,694 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-26 04:02:51,738 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:02:51,738 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:02:51,741 INFO L168 Benchmark]: Toolchain (without parser) took 1416.14 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.2 MB in the beginning and 27.0 MB in the end (delta: -5.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:51,741 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 44.0 MB. Free memory was 22.0 MB in the beginning and 21.9 MB in the end (delta: 52.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:02:51,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.28 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.6 MB in the beginning and 31.9 MB in the end (delta: -11.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:51,743 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.42 ms. Allocated memory is still 54.5 MB. Free memory was 31.9 MB in the beginning and 30.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:51,744 INFO L168 Benchmark]: Boogie Preprocessor took 23.43 ms. Allocated memory is still 54.5 MB. Free memory was 30.7 MB in the beginning and 29.8 MB in the end (delta: 872.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:02:51,745 INFO L168 Benchmark]: RCFGBuilder took 252.27 ms. Allocated memory is still 54.5 MB. Free memory was 29.6 MB in the beginning and 34.7 MB in the end (delta: -5.0 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:51,746 INFO L168 Benchmark]: TraceAbstraction took 783.63 ms. Allocated memory is still 54.5 MB. Free memory was 34.2 MB in the beginning and 29.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:51,746 INFO L168 Benchmark]: Witness Printer took 60.34 ms. Allocated memory is still 54.5 MB. Free memory was 29.3 MB in the beginning and 27.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:51,753 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 44.0 MB. Free memory was 22.0 MB in the beginning and 21.9 MB in the end (delta: 52.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 245.28 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.6 MB in the beginning and 31.9 MB in the end (delta: -11.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.42 ms. Allocated memory is still 54.5 MB. Free memory was 31.9 MB in the beginning and 30.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.43 ms. Allocated memory is still 54.5 MB. Free memory was 30.7 MB in the beginning and 29.8 MB in the end (delta: 872.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 252.27 ms. Allocated memory is still 54.5 MB. Free memory was 29.6 MB in the beginning and 34.7 MB in the end (delta: -5.0 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 783.63 ms. Allocated memory is still 54.5 MB. Free memory was 34.2 MB in the beginning and 29.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * Witness Printer took 60.34 ms. Allocated memory is still 54.5 MB. Free memory was 29.3 MB in the beginning and 27.0 MB in the end (delta: 2.3 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: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, 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, 0.0s 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, 0.1s 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...