./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b 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-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.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 f1c0f52e4e285a18472ace03d4db4ceb89212d4af812bbedd827878c931f4f63 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 22:38:06,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 22:38:06,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 22:38:06,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 22:38:06,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 22:38:06,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 22:38:06,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 22:38:06,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 22:38:06,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 22:38:06,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 22:38:06,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 22:38:06,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 22:38:06,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 22:38:06,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 22:38:06,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 22:38:06,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 22:38:06,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 22:38:06,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 22:38:06,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 22:38:06,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 22:38:06,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 22:38:06,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 22:38:06,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 22:38:06,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 22:38:06,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 22:38:06,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 22:38:06,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 22:38:06,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 22:38:06,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 22:38:06,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 22:38:06,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 22:38:06,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 22:38:06,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 22:38:06,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 22:38:06,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 22:38:06,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 22:38:06,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 22:38:06,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 22:38:06,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 22:38:06,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 22:38:06,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 22:38:06,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-12-14 22:38:06,502 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 22:38:06,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 22:38:06,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 22:38:06,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 22:38:06,504 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 22:38:06,504 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 22:38:06,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 22:38:06,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 22:38:06,505 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 22:38:06,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 22:38:06,506 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 22:38:06,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 22:38:06,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 22:38:06,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 22:38:06,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 22:38:06,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 22:38:06,506 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-14 22:38:06,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 22:38:06,507 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 22:38:06,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 22:38:06,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 22:38:06,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 22:38:06,507 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 22:38:06,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 22:38:06,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 22:38:06,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 22:38:06,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 22:38:06,509 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 22:38:06,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 22:38:06,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 22:38:06,509 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 22:38:06,509 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1c0f52e4e285a18472ace03d4db4ceb89212d4af812bbedd827878c931f4f63 [2021-12-14 22:38:06,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 22:38:06,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 22:38:06,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 22:38:06,684 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 22:38:06,685 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 22:38:06,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2021-12-14 22:38:06,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8f1de207/b883a4cacd2f4f51a35f4fcfc111491f/FLAGb3af0c35d [2021-12-14 22:38:07,084 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 22:38:07,085 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2021-12-14 22:38:07,089 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8f1de207/b883a4cacd2f4f51a35f4fcfc111491f/FLAGb3af0c35d [2021-12-14 22:38:07,543 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8f1de207/b883a4cacd2f4f51a35f4fcfc111491f [2021-12-14 22:38:07,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 22:38:07,550 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 22:38:07,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 22:38:07,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 22:38:07,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 22:38:07,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:38:07" (1/1) ... [2021-12-14 22:38:07,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cbf3bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:38:07, skipping insertion in model container [2021-12-14 22:38:07,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:38:07" (1/1) ... [2021-12-14 22:38:07,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 22:38:07,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 22:38:07,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 22:38:07,701 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 22:38:07,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 22:38:07,719 INFO L208 MainTranslator]: Completed translation [2021-12-14 22:38:07,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:38:07 WrapperNode [2021-12-14 22:38:07,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 22:38:07,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 22:38:07,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 22:38:07,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 22:38:07,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:38:07" (1/1) ... [2021-12-14 22:38:07,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:38:07" (1/1) ... [2021-12-14 22:38:07,740 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2021-12-14 22:38:07,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 22:38:07,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 22:38:07,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 22:38:07,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 22:38:07,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:38:07" (1/1) ... [2021-12-14 22:38:07,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:38:07" (1/1) ... [2021-12-14 22:38:07,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:38:07" (1/1) ... [2021-12-14 22:38:07,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:38:07" (1/1) ... [2021-12-14 22:38:07,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:38:07" (1/1) ... [2021-12-14 22:38:07,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:38:07" (1/1) ... [2021-12-14 22:38:07,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:38:07" (1/1) ... [2021-12-14 22:38:07,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 22:38:07,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 22:38:07,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 22:38:07,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 22:38:07,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:38:07" (1/1) ... [2021-12-14 22:38:07,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 22:38:07,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:38:07,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 22:38:07,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 22:38:07,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 22:38:07,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 22:38:07,845 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 22:38:07,846 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 22:38:07,933 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 22:38:07,937 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 22:38:07,937 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-14 22:38:07,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:38:07 BoogieIcfgContainer [2021-12-14 22:38:07,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 22:38:07,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 22:38:07,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 22:38:07,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 22:38:07,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:38:07" (1/3) ... [2021-12-14 22:38:07,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698fa127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:38:07, skipping insertion in model container [2021-12-14 22:38:07,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:38:07" (2/3) ... [2021-12-14 22:38:07,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698fa127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:38:07, skipping insertion in model container [2021-12-14 22:38:07,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:38:07" (3/3) ... [2021-12-14 22:38:07,944 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wcet2.c [2021-12-14 22:38:07,947 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 22:38:07,947 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-14 22:38:07,975 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 22:38:07,980 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 22:38:07,980 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-14 22:38:07,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:38:07,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-14 22:38:07,991 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:38:07,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-14 22:38:07,992 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-14 22:38:07,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:38:07,995 INFO L85 PathProgramCache]: Analyzing trace with hash 28699890, now seen corresponding path program 1 times [2021-12-14 22:38:08,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:38:08,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092207706] [2021-12-14 22:38:08,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:38:08,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:38:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:38:08,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:38:08,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:38:08,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092207706] [2021-12-14 22:38:08,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092207706] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:38:08,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:38:08,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 22:38:08,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882482439] [2021-12-14 22:38:08,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:38:08,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 22:38:08,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:38:08,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 22:38:08,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 22:38:08,120 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:38:08,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:38:08,137 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2021-12-14 22:38:08,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 22:38:08,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-12-14 22:38:08,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:38:08,144 INFO L225 Difference]: With dead ends: 29 [2021-12-14 22:38:08,144 INFO L226 Difference]: Without dead ends: 11 [2021-12-14 22:38:08,145 INFO L932 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 [2021-12-14 22:38:08,148 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:38:08,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 15 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:38:08,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-12-14 22:38:08,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-12-14 22:38:08,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.5) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:38:08,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-12-14 22:38:08,166 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 5 [2021-12-14 22:38:08,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:38:08,166 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-12-14 22:38:08,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:38:08,167 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2021-12-14 22:38:08,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-14 22:38:08,167 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:38:08,167 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-14 22:38:08,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 22:38:08,168 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-14 22:38:08,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:38:08,168 INFO L85 PathProgramCache]: Analyzing trace with hash 28699945, now seen corresponding path program 1 times [2021-12-14 22:38:08,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:38:08,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315593413] [2021-12-14 22:38:08,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:38:08,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:38:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:38:08,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:38:08,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:38:08,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315593413] [2021-12-14 22:38:08,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315593413] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:38:08,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:38:08,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 22:38:08,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911594520] [2021-12-14 22:38:08,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:38:08,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 22:38:08,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:38:08,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 22:38:08,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 22:38:08,186 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:38:08,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:38:08,199 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2021-12-14 22:38:08,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 22:38:08,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-12-14 22:38:08,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:38:08,200 INFO L225 Difference]: With dead ends: 19 [2021-12-14 22:38:08,200 INFO L226 Difference]: Without dead ends: 18 [2021-12-14 22:38:08,200 INFO L932 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 [2021-12-14 22:38:08,201 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:38:08,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 12 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:38:08,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-12-14 22:38:08,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2021-12-14 22:38:08,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.5) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:38:08,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-12-14 22:38:08,205 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 5 [2021-12-14 22:38:08,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:38:08,205 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-12-14 22:38:08,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:38:08,205 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-12-14 22:38:08,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-14 22:38:08,206 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:38:08,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-14 22:38:08,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 22:38:08,206 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-14 22:38:08,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:38:08,207 INFO L85 PathProgramCache]: Analyzing trace with hash 889696651, now seen corresponding path program 1 times [2021-12-14 22:38:08,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:38:08,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291590716] [2021-12-14 22:38:08,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:38:08,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:38:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:38:08,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:38:08,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:38:08,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291590716] [2021-12-14 22:38:08,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291590716] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:38:08,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:38:08,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 22:38:08,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630085978] [2021-12-14 22:38:08,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:38:08,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 22:38:08,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:38:08,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 22:38:08,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 22:38:08,231 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:38:08,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:38:08,238 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2021-12-14 22:38:08,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 22:38:08,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-14 22:38:08,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:38:08,239 INFO L225 Difference]: With dead ends: 13 [2021-12-14 22:38:08,239 INFO L226 Difference]: Without dead ends: 12 [2021-12-14 22:38:08,239 INFO L932 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 [2021-12-14 22:38:08,240 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:38:08,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 7 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:38:08,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-12-14 22:38:08,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-12-14 22:38:08,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:38:08,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2021-12-14 22:38:08,243 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 6 [2021-12-14 22:38:08,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:38:08,244 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2021-12-14 22:38:08,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:38:08,244 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-12-14 22:38:08,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-14 22:38:08,244 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:38:08,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-14 22:38:08,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 22:38:08,245 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-14 22:38:08,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:38:08,245 INFO L85 PathProgramCache]: Analyzing trace with hash 889698349, now seen corresponding path program 1 times [2021-12-14 22:38:08,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:38:08,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998300618] [2021-12-14 22:38:08,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:38:08,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:38:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:38:08,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:38:08,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:38:08,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998300618] [2021-12-14 22:38:08,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998300618] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:38:08,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:38:08,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 22:38:08,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836061253] [2021-12-14 22:38:08,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:38:08,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 22:38:08,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:38:08,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 22:38:08,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 22:38:08,263 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:38:08,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:38:08,272 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2021-12-14 22:38:08,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 22:38:08,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-14 22:38:08,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:38:08,273 INFO L225 Difference]: With dead ends: 13 [2021-12-14 22:38:08,273 INFO L226 Difference]: Without dead ends: 12 [2021-12-14 22:38:08,273 INFO L932 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 [2021-12-14 22:38:08,274 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:38:08,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 7 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:38:08,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-12-14 22:38:08,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-12-14 22:38:08,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:38:08,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-12-14 22:38:08,277 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 6 [2021-12-14 22:38:08,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:38:08,278 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-12-14 22:38:08,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:38:08,278 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-12-14 22:38:08,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-14 22:38:08,278 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:38:08,278 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-12-14 22:38:08,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 22:38:08,279 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-14 22:38:08,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:38:08,279 INFO L85 PathProgramCache]: Analyzing trace with hash 301623087, now seen corresponding path program 1 times [2021-12-14 22:38:08,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:38:08,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593177187] [2021-12-14 22:38:08,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:38:08,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:38:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:38:08,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 22:38:08,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:38:08,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593177187] [2021-12-14 22:38:08,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593177187] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:38:08,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:38:08,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 22:38:08,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358304744] [2021-12-14 22:38:08,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:38:08,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 22:38:08,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:38:08,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 22:38:08,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 22:38:08,300 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:38:08,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:38:08,311 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2021-12-14 22:38:08,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 22:38:08,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-14 22:38:08,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:38:08,312 INFO L225 Difference]: With dead ends: 14 [2021-12-14 22:38:08,312 INFO L226 Difference]: Without dead ends: 0 [2021-12-14 22:38:08,312 INFO L932 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 [2021-12-14 22:38:08,313 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:38:08,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 9 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:38:08,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-14 22:38:08,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-14 22:38:08,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:38:08,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-14 22:38:08,315 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-12-14 22:38:08,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:38:08,316 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-14 22:38:08,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:38:08,316 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-14 22:38:08,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-14 22:38:08,318 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-12-14 22:38:08,318 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-12-14 22:38:08,318 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-12-14 22:38:08,318 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-12-14 22:38:08,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 22:38:08,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-14 22:38:08,348 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-12-14 22:38:08,349 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-14 22:38:08,349 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-12-14 22:38:08,349 INFO L854 garLoopResultBuilder]: At program point L19-2(lines 19 21) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 4)) [2021-12-14 22:38:08,349 INFO L858 garLoopResultBuilder]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2021-12-14 22:38:08,350 INFO L854 garLoopResultBuilder]: At program point L17-2(lines 17 23) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) [2021-12-14 22:38:08,350 INFO L858 garLoopResultBuilder]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2021-12-14 22:38:08,350 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-14 22:38:08,350 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-12-14 22:38:08,350 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-12-14 22:38:08,350 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-14 22:38:08,350 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-14 22:38:08,351 INFO L861 garLoopResultBuilder]: At program point L24(lines 13 25) the Hoare annotation is: true [2021-12-14 22:38:08,351 INFO L858 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-12-14 22:38:08,351 INFO L858 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2021-12-14 22:38:08,351 INFO L858 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2021-12-14 22:38:08,353 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-14 22:38:08,355 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-14 22:38:08,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:38:08 BoogieIcfgContainer [2021-12-14 22:38:08,367 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-14 22:38:08,367 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 22:38:08,368 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 22:38:08,368 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 22:38:08,368 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:38:07" (3/4) ... [2021-12-14 22:38:08,370 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-14 22:38:08,377 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-14 22:38:08,377 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-14 22:38:08,378 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-14 22:38:08,407 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 22:38:08,407 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 22:38:08,409 INFO L158 Benchmark]: Toolchain (without parser) took 857.11ms. Allocated memory is still 113.2MB. Free memory was 83.8MB in the beginning and 76.1MB in the end (delta: 7.7MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2021-12-14 22:38:08,409 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 22:38:08,409 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.65ms. Allocated memory is still 113.2MB. Free memory was 83.5MB in the beginning and 91.4MB in the end (delta: -7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 22:38:08,410 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.25ms. Allocated memory is still 113.2MB. Free memory was 91.4MB in the beginning and 90.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 22:38:08,410 INFO L158 Benchmark]: Boogie Preprocessor took 14.91ms. Allocated memory is still 113.2MB. Free memory was 90.0MB in the beginning and 89.3MB in the end (delta: 755.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 22:38:08,410 INFO L158 Benchmark]: RCFGBuilder took 182.29ms. Allocated memory is still 113.2MB. Free memory was 89.3MB in the beginning and 80.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 22:38:08,411 INFO L158 Benchmark]: TraceAbstraction took 426.98ms. Allocated memory is still 113.2MB. Free memory was 80.5MB in the beginning and 78.3MB in the end (delta: 2.2MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2021-12-14 22:38:08,411 INFO L158 Benchmark]: Witness Printer took 39.96ms. Allocated memory is still 113.2MB. Free memory was 78.3MB in the beginning and 76.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 22:38:08,413 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 163.65ms. Allocated memory is still 113.2MB. Free memory was 83.5MB in the beginning and 91.4MB in the end (delta: -7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.25ms. Allocated memory is still 113.2MB. Free memory was 91.4MB in the beginning and 90.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.91ms. Allocated memory is still 113.2MB. Free memory was 90.0MB in the beginning and 89.3MB in the end (delta: 755.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 182.29ms. Allocated memory is still 113.2MB. Free memory was 89.3MB in the beginning and 80.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 426.98ms. Allocated memory is still 113.2MB. Free memory was 80.5MB in the beginning and 78.3MB in the end (delta: 2.2MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * Witness Printer took 39.96ms. Allocated memory is still 113.2MB. Free memory was 78.3MB in the beginning and 76.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 37 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 18 HoareAnnotationTreeSize, 3 FomulaSimplifications, 32 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 57 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (0 <= i + 2147483648 && 0 <= j) && i <= 4 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-14 22:38:08,459 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE