./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 678e0110 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 0.1.24-678e011 [2019-11-19 22:18:16,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:18:16,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:18:16,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:18:16,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:18:16,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:18:16,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:18:16,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:18:16,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:18:16,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:18:16,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:18:16,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:18:16,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:18:16,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:18:16,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:18:16,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:18:16,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:18:16,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:18:16,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:18:16,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:18:16,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:18:16,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:18:16,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:18:16,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:18:16,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:18:16,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:18:16,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:18:16,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:18:16,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:18:16,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:18:16,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:18:16,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:18:16,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:18:16,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:18:16,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:18:16,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:18:16,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:18:16,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:18:16,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:18:16,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:18:16,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:18:16,241 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-19 22:18:16,255 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:18:16,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:18:16,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:18:16,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:18:16,258 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:18:16,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:18:16,258 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:18:16,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:18:16,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:18:16,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:18:16,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:18:16,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:18:16,260 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-19 22:18:16,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:18:16,260 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:18:16,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:18:16,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:18:16,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:18:16,261 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:18:16,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:18:16,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:18:16,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:18:16,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:18:16,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:18:16,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:18:16,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 22:18:16,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:18:16,264 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 [2019-11-19 22:18:16,568 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:18:16,585 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:18:16,589 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:18:16,591 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:18:16,592 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:18:16,592 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2019-11-19 22:18:16,664 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3bdb49c5/d86363fd3811451985b6c5d0f3b05b2e/FLAG8a70c2ff5 [2019-11-19 22:18:17,100 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:18:17,101 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2019-11-19 22:18:17,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3bdb49c5/d86363fd3811451985b6c5d0f3b05b2e/FLAG8a70c2ff5 [2019-11-19 22:18:17,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3bdb49c5/d86363fd3811451985b6c5d0f3b05b2e [2019-11-19 22:18:17,483 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:18:17,485 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:18:17,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:18:17,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:18:17,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:18:17,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:18:17" (1/1) ... [2019-11-19 22:18:17,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cdd4588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:17, skipping insertion in model container [2019-11-19 22:18:17,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:18:17" (1/1) ... [2019-11-19 22:18:17,501 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:18:17,522 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:18:17,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:18:17,687 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:18:17,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:18:17,723 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:18:17,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:17 WrapperNode [2019-11-19 22:18:17,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:18:17,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:18:17,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:18:17,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:18:17,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:17" (1/1) ... [2019-11-19 22:18:17,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:17" (1/1) ... [2019-11-19 22:18:17,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:18:17,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:18:17,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:18:17,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:18:17,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:17" (1/1) ... [2019-11-19 22:18:17,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:17" (1/1) ... [2019-11-19 22:18:17,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:17" (1/1) ... [2019-11-19 22:18:17,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:17" (1/1) ... [2019-11-19 22:18:17,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:17" (1/1) ... [2019-11-19 22:18:17,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:17" (1/1) ... [2019-11-19 22:18:17,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:17" (1/1) ... [2019-11-19 22:18:17,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:18:17,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:18:17,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:18:17,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:18:17,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:17" (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 [2019-11-19 22:18:17,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:18:17,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:18:18,054 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:18:18,054 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-19 22:18:18,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:18:18 BoogieIcfgContainer [2019-11-19 22:18:18,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:18:18,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:18:18,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:18:18,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:18:18,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:18:17" (1/3) ... [2019-11-19 22:18:18,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726f51aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:18:18, skipping insertion in model container [2019-11-19 22:18:18,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:18:17" (2/3) ... [2019-11-19 22:18:18,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726f51aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:18:18, skipping insertion in model container [2019-11-19 22:18:18,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:18:18" (3/3) ... [2019-11-19 22:18:18,063 INFO L109 eAbstractionObserver]: Analyzing ICFG KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2019-11-19 22:18:18,073 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:18:18,080 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-19 22:18:18,091 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-19 22:18:18,120 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:18:18,120 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:18:18,121 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:18:18,121 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:18:18,121 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:18:18,121 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:18:18,122 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:18:18,122 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:18:18,138 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-19 22:18:18,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-19 22:18:18,145 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:18:18,146 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-19 22:18:18,146 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:18:18,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:18:18,157 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-11-19 22:18:18,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:18:18,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230933912] [2019-11-19 22:18:18,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:18:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:18:18,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:18:18,320 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230933912] [2019-11-19 22:18:18,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:18:18,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:18:18,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971205360] [2019-11-19 22:18:18,328 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 22:18:18,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:18:18,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:18:18,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:18:18,345 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2019-11-19 22:18:18,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:18:18,401 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-11-19 22:18:18,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:18:18,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-19 22:18:18,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:18:18,411 INFO L225 Difference]: With dead ends: 21 [2019-11-19 22:18:18,411 INFO L226 Difference]: Without dead ends: 12 [2019-11-19 22:18:18,414 INFO L630 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 [2019-11-19 22:18:18,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-19 22:18:18,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-11-19 22:18:18,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-19 22:18:18,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-11-19 22:18:18,444 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2019-11-19 22:18:18,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:18:18,444 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-19 22:18:18,445 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 22:18:18,445 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-11-19 22:18:18,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-19 22:18:18,445 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:18:18,445 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-19 22:18:18,446 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:18:18,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:18:18,446 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-11-19 22:18:18,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:18:18,447 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889659849] [2019-11-19 22:18:18,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:18:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:18:18,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:18:18,481 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889659849] [2019-11-19 22:18:18,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:18:18,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 22:18:18,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718498338] [2019-11-19 22:18:18,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 22:18:18,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:18:18,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 22:18:18,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 22:18:18,484 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 4 states. [2019-11-19 22:18:18,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:18:18,527 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2019-11-19 22:18:18,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 22:18:18,527 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-19 22:18:18,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:18:18,528 INFO L225 Difference]: With dead ends: 13 [2019-11-19 22:18:18,528 INFO L226 Difference]: Without dead ends: 12 [2019-11-19 22:18:18,529 INFO L630 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 [2019-11-19 22:18:18,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-19 22:18:18,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2019-11-19 22:18:18,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-19 22:18:18,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2019-11-19 22:18:18,532 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 4 [2019-11-19 22:18:18,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:18:18,532 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-11-19 22:18:18,533 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 22:18:18,533 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2019-11-19 22:18:18,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 22:18:18,533 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:18:18,533 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 22:18:18,534 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:18:18,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:18:18,534 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-11-19 22:18:18,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:18:18,535 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966172742] [2019-11-19 22:18:18,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:18:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:18:18,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:18:18,558 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966172742] [2019-11-19 22:18:18,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:18:18,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-19 22:18:18,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887944505] [2019-11-19 22:18:18,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 22:18:18,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:18:18,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 22:18:18,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 22:18:18,561 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 3 states. [2019-11-19 22:18:18,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:18:18,576 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2019-11-19 22:18:18,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 22:18:18,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-19 22:18:18,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:18:18,578 INFO L225 Difference]: With dead ends: 10 [2019-11-19 22:18:18,578 INFO L226 Difference]: Without dead ends: 9 [2019-11-19 22:18:18,578 INFO L630 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 [2019-11-19 22:18:18,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-19 22:18:18,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-19 22:18:18,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-19 22:18:18,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2019-11-19 22:18:18,582 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 5 [2019-11-19 22:18:18,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:18:18,582 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2019-11-19 22:18:18,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 22:18:18,583 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2019-11-19 22:18:18,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 22:18:18,583 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:18:18,583 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 22:18:18,584 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 22:18:18,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:18:18,585 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-11-19 22:18:18,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:18:18,586 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083891856] [2019-11-19 22:18:18,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:18:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:18:18,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:18:18,651 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083891856] [2019-11-19 22:18:18,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:18:18,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:18:18,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240080597] [2019-11-19 22:18:18,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 22:18:18,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:18:18,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 22:18:18,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 22:18:18,654 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand 4 states. [2019-11-19 22:18:18,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:18:18,696 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2019-11-19 22:18:18,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 22:18:18,696 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-19 22:18:18,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:18:18,697 INFO L225 Difference]: With dead ends: 9 [2019-11-19 22:18:18,697 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 22:18:18,698 INFO L630 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 [2019-11-19 22:18:18,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 22:18:18,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 22:18:18,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 22:18:18,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 22:18:18,699 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-11-19 22:18:18,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:18:18,699 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:18:18,699 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 22:18:18,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:18:18,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 22:18:18,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 22:18:18,746 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2019-11-19 22:18:18,746 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 22:18:18,747 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2019-11-19 22:18:18,747 INFO L447 ceAbstractionStarter]: At program point L27(lines 13 28) the Hoare annotation is: true [2019-11-19 22:18:18,747 INFO L440 ceAbstractionStarter]: At program point L23-1(lines 17 26) the Hoare annotation is: (< 0 (+ (div ULTIMATE.start_main_~x~0 2) 1073741825)) [2019-11-19 22:18:18,748 INFO L444 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2019-11-19 22:18:18,748 INFO L444 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2019-11-19 22:18:18,748 INFO L444 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2019-11-19 22:18:18,748 INFO L444 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2019-11-19 22:18:18,748 INFO L444 ceAbstractionStarter]: For program point L17-2(lines 17 26) no Hoare annotation was computed. [2019-11-19 22:18:18,748 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2019-11-19 22:18:18,748 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2019-11-19 22:18:18,749 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 22:18:18,749 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 22:18:18,749 INFO L444 ceAbstractionStarter]: For program point L18(lines 18 22) no Hoare annotation was computed. [2019-11-19 22:18:18,749 INFO L444 ceAbstractionStarter]: For program point L18-2(lines 17 26) no Hoare annotation was computed. [2019-11-19 22:18:18,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:18:18 BoogieIcfgContainer [2019-11-19 22:18:18,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:18:18,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:18:18,762 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:18:18,763 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:18:18,763 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:18:18" (3/4) ... [2019-11-19 22:18:18,767 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 22:18:18,776 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 22:18:18,776 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-19 22:18:18,819 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 22:18:18,819 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:18:18,822 INFO L168 Benchmark]: Toolchain (without parser) took 1336.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -108.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2019-11-19 22:18:18,822 INFO L168 Benchmark]: CDTParser took 1.39 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:18:18,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.92 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:18:18,824 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.93 ms. Allocated memory is still 1.0 GB. Free memory is still 945.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:18:18,825 INFO L168 Benchmark]: Boogie Preprocessor took 70.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -177.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-19 22:18:18,825 INFO L168 Benchmark]: RCFGBuilder took 226.43 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:18:18,826 INFO L168 Benchmark]: TraceAbstraction took 705.56 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: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 11.5 GB. [2019-11-19 22:18:18,827 INFO L168 Benchmark]: Witness Printer took 57.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:18:18,831 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 237.92 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 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 33.93 ms. Allocated memory is still 1.0 GB. Free memory is still 945.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 70.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -177.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 226.43 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 705.56 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: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 11.5 GB. * Witness Printer took 57.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. 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. Result: SAFE, OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...