./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.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 bc157475d6c321934f68f6b441d83c0582720461 ............................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:32:25,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:32:25,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:32:25,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:32:25,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:32:25,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:32:25,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:32:25,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:32:25,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:32:25,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:32:25,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:32:25,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:32:25,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:32:25,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:32:25,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:32:25,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:32:25,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:32:25,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:32:25,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:32:25,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:32:25,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:32:25,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:32:25,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:32:25,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:32:25,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:32:25,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:32:25,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:32:25,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:32:25,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:32:25,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:32:25,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:32:25,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:32:25,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:32:25,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:32:25,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:32:25,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:32:25,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:32:25,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:32:25,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:32:25,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:32:25,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:32:25,679 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-19 18:32:25,723 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:32:25,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:32:25,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:32:25,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:32:25,725 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:32:25,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:32:25,726 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:32:25,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:32:25,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:32:25,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 18:32:25,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:32:25,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 18:32:25,727 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-19 18:32:25,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:32:25,727 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:32:25,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 18:32:25,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:32:25,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:32:25,731 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:32:25,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:32:25,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:32:25,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:32:25,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:32:25,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 18:32:25,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:32:25,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:32:25,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 18:32:25,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:32:25,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> bc157475d6c321934f68f6b441d83c0582720461 [2020-10-19 18:32:26,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:32:26,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:32:26,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:32:26,127 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:32:26,128 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:32:26,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2020-10-19 18:32:26,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/828f55969/9849439cdf0742b9a9158ef7ddce48a0/FLAG98b68abc0 [2020-10-19 18:32:26,673 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:32:26,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2020-10-19 18:32:26,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/828f55969/9849439cdf0742b9a9158ef7ddce48a0/FLAG98b68abc0 [2020-10-19 18:32:27,030 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/828f55969/9849439cdf0742b9a9158ef7ddce48a0 [2020-10-19 18:32:27,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:32:27,042 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:32:27,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:32:27,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:32:27,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:32:27,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:32:27" (1/1) ... [2020-10-19 18:32:27,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@271fb956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:27, skipping insertion in model container [2020-10-19 18:32:27,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:32:27" (1/1) ... [2020-10-19 18:32:27,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:32:27,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:32:27,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:32:27,305 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:32:27,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:32:27,329 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:32:27,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:27 WrapperNode [2020-10-19 18:32:27,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:32:27,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:32:27,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:32:27,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:32:27,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:27" (1/1) ... [2020-10-19 18:32:27,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:27" (1/1) ... [2020-10-19 18:32:27,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:32:27,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:32:27,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:32:27,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:32:27,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:27" (1/1) ... [2020-10-19 18:32:27,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:27" (1/1) ... [2020-10-19 18:32:27,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:27" (1/1) ... [2020-10-19 18:32:27,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:27" (1/1) ... [2020-10-19 18:32:27,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:27" (1/1) ... [2020-10-19 18:32:27,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:27" (1/1) ... [2020-10-19 18:32:27,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:27" (1/1) ... [2020-10-19 18:32:27,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:32:27,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:32:27,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:32:27,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:32:27,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:27" (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 [2020-10-19 18:32:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:32:27,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:32:27,693 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:32:27,693 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-19 18:32:27,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:32:27 BoogieIcfgContainer [2020-10-19 18:32:27,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:32:27,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:32:27,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:32:27,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:32:27,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:32:27" (1/3) ... [2020-10-19 18:32:27,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63cf949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:32:27, skipping insertion in model container [2020-10-19 18:32:27,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:32:27" (2/3) ... [2020-10-19 18:32:27,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63cf949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:32:27, skipping insertion in model container [2020-10-19 18:32:27,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:32:27" (3/3) ... [2020-10-19 18:32:27,721 INFO L111 eAbstractionObserver]: Analyzing ICFG KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2020-10-19 18:32:27,763 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:32:27,780 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-19 18:32:27,813 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-19 18:32:27,846 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:32:27,846 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 18:32:27,847 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:32:27,847 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:32:27,847 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:32:27,847 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:32:27,847 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:32:27,847 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:32:27,861 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-10-19 18:32:27,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-19 18:32:27,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:32:27,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-19 18:32:27,867 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:32:27,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:32:27,872 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2020-10-19 18:32:27,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:32:27,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557011187] [2020-10-19 18:32:27,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:32:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:32:28,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:32:28,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557011187] [2020-10-19 18:32:28,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:32:28,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 18:32:28,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605807699] [2020-10-19 18:32:28,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:32:28,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:32:28,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:32:28,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:32:28,062 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2020-10-19 18:32:28,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:32:28,112 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2020-10-19 18:32:28,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:32:28,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-19 18:32:28,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:32:28,124 INFO L225 Difference]: With dead ends: 21 [2020-10-19 18:32:28,125 INFO L226 Difference]: Without dead ends: 12 [2020-10-19 18:32:28,128 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 [2020-10-19 18:32:28,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-19 18:32:28,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2020-10-19 18:32:28,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-19 18:32:28,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-10-19 18:32:28,163 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-10-19 18:32:28,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:32:28,164 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-10-19 18:32:28,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:32:28,164 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-10-19 18:32:28,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-19 18:32:28,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:32:28,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-19 18:32:28,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:32:28,165 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:32:28,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:32:28,166 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2020-10-19 18:32:28,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:32:28,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135357495] [2020-10-19 18:32:28,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:32:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:32:28,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:32:28,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135357495] [2020-10-19 18:32:28,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:32:28,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:32:28,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422362659] [2020-10-19 18:32:28,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:32:28,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:32:28,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:32:28,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:32:28,204 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 4 states. [2020-10-19 18:32:28,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:32:28,252 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2020-10-19 18:32:28,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:32:28,253 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-10-19 18:32:28,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:32:28,254 INFO L225 Difference]: With dead ends: 13 [2020-10-19 18:32:28,254 INFO L226 Difference]: Without dead ends: 12 [2020-10-19 18:32:28,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:32:28,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-19 18:32:28,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2020-10-19 18:32:28,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-19 18:32:28,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-10-19 18:32:28,258 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 4 [2020-10-19 18:32:28,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:32:28,259 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-10-19 18:32:28,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:32:28,259 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-10-19 18:32:28,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-19 18:32:28,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:32:28,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-19 18:32:28,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:32:28,260 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:32:28,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:32:28,261 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2020-10-19 18:32:28,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:32:28,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709978513] [2020-10-19 18:32:28,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:32:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:32:28,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:32:28,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709978513] [2020-10-19 18:32:28,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:32:28,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-19 18:32:28,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612096937] [2020-10-19 18:32:28,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:32:28,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:32:28,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:32:28,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:32:28,288 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 3 states. [2020-10-19 18:32:28,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:32:28,306 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2020-10-19 18:32:28,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:32:28,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-19 18:32:28,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:32:28,307 INFO L225 Difference]: With dead ends: 10 [2020-10-19 18:32:28,307 INFO L226 Difference]: Without dead ends: 9 [2020-10-19 18:32:28,308 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 [2020-10-19 18:32:28,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-10-19 18:32:28,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-10-19 18:32:28,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-19 18:32:28,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2020-10-19 18:32:28,312 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 5 [2020-10-19 18:32:28,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:32:28,312 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2020-10-19 18:32:28,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:32:28,312 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-10-19 18:32:28,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-19 18:32:28,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:32:28,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-19 18:32:28,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:32:28,314 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:32:28,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:32:28,314 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2020-10-19 18:32:28,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:32:28,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691067266] [2020-10-19 18:32:28,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:32:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:32:28,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:32:28,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691067266] [2020-10-19 18:32:28,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:32:28,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 18:32:28,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67016311] [2020-10-19 18:32:28,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:32:28,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:32:28,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:32:28,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:32:28,385 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand 4 states. [2020-10-19 18:32:28,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:32:28,420 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2020-10-19 18:32:28,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:32:28,421 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-10-19 18:32:28,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:32:28,421 INFO L225 Difference]: With dead ends: 9 [2020-10-19 18:32:28,421 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 18:32:28,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:32:28,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 18:32:28,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 18:32:28,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 18:32:28,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 18:32:28,423 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-10-19 18:32:28,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:32:28,423 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:32:28,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:32:28,424 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:32:28,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 18:32:28,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 18:32:28,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 18:32:28,445 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2020-10-19 18:32:28,445 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 18:32:28,445 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-10-19 18:32:28,446 INFO L277 CegarLoopResult]: At program point L27(lines 13 28) the Hoare annotation is: true [2020-10-19 18:32:28,446 INFO L270 CegarLoopResult]: At program point L23-1(lines 17 26) the Hoare annotation is: (< 0 (+ (div ULTIMATE.start_main_~x~0 2) 1073741825)) [2020-10-19 18:32:28,446 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-10-19 18:32:28,446 INFO L274 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-10-19 18:32:28,446 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-10-19 18:32:28,446 INFO L274 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-10-19 18:32:28,447 INFO L274 CegarLoopResult]: For program point L17-2(lines 17 26) no Hoare annotation was computed. [2020-10-19 18:32:28,447 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2020-10-19 18:32:28,447 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-10-19 18:32:28,447 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 18:32:28,447 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 18:32:28,447 INFO L274 CegarLoopResult]: For program point L18(lines 18 22) no Hoare annotation was computed. [2020-10-19 18:32:28,447 INFO L274 CegarLoopResult]: For program point L18-2(lines 17 26) no Hoare annotation was computed. [2020-10-19 18:32:28,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:32:28 BoogieIcfgContainer [2020-10-19 18:32:28,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:32:28,465 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:32:28,465 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:32:28,466 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:32:28,466 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:32:27" (3/4) ... [2020-10-19 18:32:28,471 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 18:32:28,481 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-19 18:32:28,482 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-19 18:32:28,521 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:32:28,522 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:32:28,524 INFO L168 Benchmark]: Toolchain (without parser) took 1487.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -104.3 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:32:28,525 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:32:28,526 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.84 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:32:28,526 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.44 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:32:28,527 INFO L168 Benchmark]: Boogie Preprocessor took 75.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:32:28,528 INFO L168 Benchmark]: RCFGBuilder took 256.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:32:28,528 INFO L168 Benchmark]: TraceAbstraction took 764.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:32:28,529 INFO L168 Benchmark]: Witness Printer took 56.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:32:28,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 286.84 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.44 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 256.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 764.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 11.5 GB. * Witness Printer took 56.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 < x / 2 + 1073741825 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 24 SDslu, 12 SDs, 0 SdLazy, 46 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 6 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, 218 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...