./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/sumt9.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c 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/loops-crafted-1/sumt9.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bdd7115d65c9a3a6791dc02cc87e637acb15a61f ....................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 17:10:04,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 17:10:04,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 17:10:04,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 17:10:04,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 17:10:04,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 17:10:04,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 17:10:04,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 17:10:04,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 17:10:04,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 17:10:04,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 17:10:04,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 17:10:04,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 17:10:04,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 17:10:04,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 17:10:04,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 17:10:04,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 17:10:04,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 17:10:04,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 17:10:04,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 17:10:04,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 17:10:04,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 17:10:04,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 17:10:04,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 17:10:04,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 17:10:04,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 17:10:04,667 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 17:10:04,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 17:10:04,669 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 17:10:04,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 17:10:04,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 17:10:04,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 17:10:04,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 17:10:04,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 17:10:04,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 17:10:04,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 17:10:04,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 17:10:04,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 17:10:04,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 17:10:04,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 17:10:04,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 17:10:04,678 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 17:10:04,700 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 17:10:04,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 17:10:04,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 17:10:04,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 17:10:04,702 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 17:10:04,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 17:10:04,703 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 17:10:04,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 17:10:04,703 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 17:10:04,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 17:10:04,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 17:10:04,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 17:10:04,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 17:10:04,705 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 17:10:04,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 17:10:04,706 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 17:10:04,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 17:10:04,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 17:10:04,706 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 17:10:04,707 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 17:10:04,707 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 17:10:04,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 17:10:04,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 17:10:04,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 17:10:04,708 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 17:10:04,708 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 17:10:04,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 17:10:04,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 17:10:04,709 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 17:10:04,709 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 ! call(__VERIFIER_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bdd7115d65c9a3a6791dc02cc87e637acb15a61f [2019-11-28 17:10:05,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 17:10:05,047 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 17:10:05,050 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 17:10:05,052 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 17:10:05,052 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 17:10:05,053 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/sumt9.c [2019-11-28 17:10:05,117 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93dea612a/25843b35a8f644368329cceb404bf3cf/FLAG4d2472587 [2019-11-28 17:10:05,544 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 17:10:05,546 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/sumt9.c [2019-11-28 17:10:05,552 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93dea612a/25843b35a8f644368329cceb404bf3cf/FLAG4d2472587 [2019-11-28 17:10:05,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93dea612a/25843b35a8f644368329cceb404bf3cf [2019-11-28 17:10:05,962 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 17:10:05,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 17:10:05,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 17:10:05,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 17:10:05,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 17:10:05,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:10:05" (1/1) ... [2019-11-28 17:10:05,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c7f4e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:05, skipping insertion in model container [2019-11-28 17:10:05,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:10:05" (1/1) ... [2019-11-28 17:10:05,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 17:10:06,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 17:10:06,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:10:06,235 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 17:10:06,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 17:10:06,270 INFO L208 MainTranslator]: Completed translation [2019-11-28 17:10:06,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:06 WrapperNode [2019-11-28 17:10:06,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 17:10:06,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 17:10:06,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 17:10:06,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 17:10:06,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:06" (1/1) ... [2019-11-28 17:10:06,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:06" (1/1) ... [2019-11-28 17:10:06,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 17:10:06,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 17:10:06,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 17:10:06,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 17:10:06,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:06" (1/1) ... [2019-11-28 17:10:06,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:06" (1/1) ... [2019-11-28 17:10:06,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:06" (1/1) ... [2019-11-28 17:10:06,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:06" (1/1) ... [2019-11-28 17:10:06,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:06" (1/1) ... [2019-11-28 17:10:06,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:06" (1/1) ... [2019-11-28 17:10:06,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:06" (1/1) ... [2019-11-28 17:10:06,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 17:10:06,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 17:10:06,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 17:10:06,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 17:10:06,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:06" (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 [2019-11-28 17:10:06,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 17:10:06,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 17:10:06,709 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 17:10:06,709 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-28 17:10:06,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:10:06 BoogieIcfgContainer [2019-11-28 17:10:06,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 17:10:06,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 17:10:06,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 17:10:06,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 17:10:06,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:10:05" (1/3) ... [2019-11-28 17:10:06,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69f85bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:10:06, skipping insertion in model container [2019-11-28 17:10:06,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:10:06" (2/3) ... [2019-11-28 17:10:06,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69f85bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:10:06, skipping insertion in model container [2019-11-28 17:10:06,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:10:06" (3/3) ... [2019-11-28 17:10:06,720 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt9.c [2019-11-28 17:10:06,731 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 17:10:06,739 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 17:10:06,752 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 17:10:06,781 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 17:10:06,782 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 17:10:06,782 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 17:10:06,783 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 17:10:06,783 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 17:10:06,783 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 17:10:06,784 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 17:10:06,784 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 17:10:06,805 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-28 17:10:06,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 17:10:06,813 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:10:06,814 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:10:06,814 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:10:06,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:10:06,821 INFO L82 PathProgramCache]: Analyzing trace with hash 183357013, now seen corresponding path program 1 times [2019-11-28 17:10:06,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:10:06,833 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331926127] [2019-11-28 17:10:06,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:10:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:10:07,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:10:07,229 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331926127] [2019-11-28 17:10:07,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 17:10:07,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 17:10:07,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585580484] [2019-11-28 17:10:07,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 17:10:07,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:10:07,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 17:10:07,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:10:07,256 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2019-11-28 17:10:07,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:10:07,390 INFO L93 Difference]: Finished difference Result 45 states and 69 transitions. [2019-11-28 17:10:07,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 17:10:07,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-11-28 17:10:07,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:10:07,406 INFO L225 Difference]: With dead ends: 45 [2019-11-28 17:10:07,407 INFO L226 Difference]: Without dead ends: 20 [2019-11-28 17:10:07,413 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 17:10:07,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-28 17:10:07,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-28 17:10:07,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-28 17:10:07,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2019-11-28 17:10:07,451 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 28 transitions. Word has length 8 [2019-11-28 17:10:07,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:10:07,452 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 28 transitions. [2019-11-28 17:10:07,452 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 17:10:07,452 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2019-11-28 17:10:07,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 17:10:07,453 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:10:07,453 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2019-11-28 17:10:07,453 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:10:07,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:10:07,454 INFO L82 PathProgramCache]: Analyzing trace with hash 771754666, now seen corresponding path program 1 times [2019-11-28 17:10:07,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:10:07,455 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077230944] [2019-11-28 17:10:07,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:10:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:10:07,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:10:07,770 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077230944] [2019-11-28 17:10:07,770 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145920766] [2019-11-28 17:10:07,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:10:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:10:07,827 WARN L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 34 conjunts are in the unsatisfiable core [2019-11-28 17:10:07,834 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:10:08,035 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:10:08,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 17:10:08,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 9 [2019-11-28 17:10:08,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099467322] [2019-11-28 17:10:08,039 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-28 17:10:08,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:10:08,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-28 17:10:08,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-28 17:10:08,041 INFO L87 Difference]: Start difference. First operand 20 states and 28 transitions. Second operand 9 states. [2019-11-28 17:10:09,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:10:09,015 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2019-11-28 17:10:09,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 17:10:09,015 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2019-11-28 17:10:09,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:10:09,016 INFO L225 Difference]: With dead ends: 43 [2019-11-28 17:10:09,017 INFO L226 Difference]: Without dead ends: 30 [2019-11-28 17:10:09,018 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-11-28 17:10:09,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-28 17:10:09,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2019-11-28 17:10:09,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-28 17:10:09,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2019-11-28 17:10:09,025 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 37 transitions. Word has length 12 [2019-11-28 17:10:09,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:10:09,026 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 37 transitions. [2019-11-28 17:10:09,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-28 17:10:09,026 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2019-11-28 17:10:09,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-28 17:10:09,027 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 17:10:09,027 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 17:10:09,235 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:10:09,236 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 17:10:09,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 17:10:09,237 INFO L82 PathProgramCache]: Analyzing trace with hash -278498073, now seen corresponding path program 1 times [2019-11-28 17:10:09,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 17:10:09,238 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373497240] [2019-11-28 17:10:09,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 17:10:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:10:09,411 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-28 17:10:09,412 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373497240] [2019-11-28 17:10:09,412 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290714815] [2019-11-28 17:10:09,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:10:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 17:10:09,455 WARN L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 34 conjunts are in the unsatisfiable core [2019-11-28 17:10:09,459 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 17:10:09,645 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 17:10:09,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 17:10:09,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2019-11-28 17:10:09,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987978275] [2019-11-28 17:10:09,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 17:10:09,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 17:10:09,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 17:10:09,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-11-28 17:10:09,651 INFO L87 Difference]: Start difference. First operand 29 states and 37 transitions. Second operand 10 states. [2019-11-28 17:10:09,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 17:10:09,908 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2019-11-28 17:10:09,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 17:10:09,908 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2019-11-28 17:10:09,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 17:10:09,909 INFO L225 Difference]: With dead ends: 30 [2019-11-28 17:10:09,909 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 17:10:09,910 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2019-11-28 17:10:09,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 17:10:09,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 17:10:09,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 17:10:09,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 17:10:09,911 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-11-28 17:10:09,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 17:10:09,912 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 17:10:09,912 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 17:10:09,912 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 17:10:09,912 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 17:10:10,116 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 17:10:10,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 17:10:10,304 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 29 [2019-11-28 17:10:10,307 INFO L246 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-28 17:10:10,307 INFO L246 CegarLoopResult]: For program point L32(lines 32 35) no Hoare annotation was computed. [2019-11-28 17:10:10,308 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-28 17:10:10,309 INFO L246 CegarLoopResult]: For program point L32-2(lines 18 35) no Hoare annotation was computed. [2019-11-28 17:10:10,309 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 17:10:10,309 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 17:10:10,309 INFO L246 CegarLoopResult]: For program point L28(lines 28 35) no Hoare annotation was computed. [2019-11-28 17:10:10,309 INFO L246 CegarLoopResult]: For program point L24(lines 24 35) no Hoare annotation was computed. [2019-11-28 17:10:10,310 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 17:10:10,310 INFO L246 CegarLoopResult]: For program point L20(lines 20 35) no Hoare annotation was computed. [2019-11-28 17:10:10,310 INFO L246 CegarLoopResult]: For program point L16-2(lines 16 38) no Hoare annotation was computed. [2019-11-28 17:10:10,310 INFO L246 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-28 17:10:10,311 INFO L242 CegarLoopResult]: At program point L4-2(lines 3 38) the Hoare annotation is: (let ((.cse2 (+ ULTIMATE.start_main_~v1~0 ULTIMATE.start_main_~v6~0 ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~v5~0))) (let ((.cse0 (<= .cse2 ULTIMATE.start_main_~l~0)) (.cse1 (<= ULTIMATE.start_main_~l~0 .cse2))) (or (and (= ULTIMATE.start_main_~v5~0 0) (= ULTIMATE.start_main_~v4~0 0) (= ULTIMATE.start_main_~l~0 0) (= ULTIMATE.start_main_~v1~0 0) (= ULTIMATE.start_main_~k~0 0) (= ULTIMATE.start_main_~i~0 0) (= ULTIMATE.start_main_~v3~0 0) .cse0 (= ULTIMATE.start_main_~v6~0 0) (= ULTIMATE.start_main_~j~0 0) .cse1) (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse0 .cse1)))) [2019-11-28 17:10:10,311 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 17:10:10,312 INFO L246 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-28 17:10:10,312 INFO L246 CegarLoopResult]: For program point L30(lines 30 35) no Hoare annotation was computed. [2019-11-28 17:10:10,312 INFO L246 CegarLoopResult]: For program point L26(lines 26 35) no Hoare annotation was computed. [2019-11-28 17:10:10,312 INFO L246 CegarLoopResult]: For program point L22(lines 22 35) no Hoare annotation was computed. [2019-11-28 17:10:10,313 INFO L246 CegarLoopResult]: For program point L18(lines 18 35) no Hoare annotation was computed. [2019-11-28 17:10:10,314 INFO L242 CegarLoopResult]: At program point L39(lines 11 40) the Hoare annotation is: (or (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (let ((.cse0 (+ ULTIMATE.start_main_~v1~0 ULTIMATE.start_main_~v6~0 ULTIMATE.start_main_~v2~0 ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~v5~0))) (and (<= ULTIMATE.start_main_~l~0 0) (<= 0 ULTIMATE.start_main_~l~0) (<= .cse0 ULTIMATE.start_main_~l~0) (<= ULTIMATE.start_main_~l~0 .cse0)))) [2019-11-28 17:10:10,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:10:10 BoogieIcfgContainer [2019-11-28 17:10:10,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 17:10:10,351 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 17:10:10,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 17:10:10,351 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 17:10:10,352 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:10:06" (3/4) ... [2019-11-28 17:10:10,355 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 17:10:10,367 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-28 17:10:10,367 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 17:10:10,425 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 17:10:10,425 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 17:10:10,427 INFO L168 Benchmark]: Toolchain (without parser) took 4463.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 961.7 MB in the beginning and 890.8 MB in the end (delta: 70.9 MB). Peak memory consumption was 200.9 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:10,428 INFO L168 Benchmark]: CDTParser took 0.26 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. [2019-11-28 17:10:10,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.76 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:10,429 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:10,430 INFO L168 Benchmark]: Boogie Preprocessor took 21.40 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:10,431 INFO L168 Benchmark]: RCFGBuilder took 312.97 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:10,432 INFO L168 Benchmark]: TraceAbstraction took 3637.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 897.3 MB in the end (delta: 203.0 MB). Peak memory consumption was 203.0 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:10,432 INFO L168 Benchmark]: Witness Printer took 74.90 ms. Allocated memory is still 1.2 GB. Free memory was 897.3 MB in the beginning and 890.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 17:10:10,436 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 305.76 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 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 103.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.40 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 312.97 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3637.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 897.3 MB in the end (delta: 203.0 MB). Peak memory consumption was 203.0 MB. Max. memory is 11.5 GB. * Witness Printer took 74.90 ms. Allocated memory is still 1.2 GB. Free memory was 897.3 MB in the beginning and 890.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: !(0 == cond) || (((l <= 0 && 0 <= l) && v1 + v6 + v2 + i + v3 + v4 + k + j + v5 <= l) && l <= v1 + v6 + v2 + i + v3 + v4 + k + j + v5) - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((((((((((v5 == 0 && v4 == 0) && l == 0) && v1 == 0) && k == 0) && i == 0) && v3 == 0) && v1 + v6 + v2 + i + v3 + v4 + k + j + v5 <= l) && v6 == 0) && j == 0) && l <= v1 + v6 + v2 + i + v3 + v4 + k + j + v5) || ((1 == cond && v1 + v6 + v2 + i + v3 + v4 + k + j + v5 <= l) && l <= v1 + v6 + v2 + i + v3 + v4 + k + j + v5) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Result: SAFE, OverallTime: 3.3s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 46 SDtfs, 86 SDslu, 64 SDs, 0 SdLazy, 229 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=2, 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 117 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 54 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 21218 SizeOfPredicates, 24 NumberOfNonLiveVariables, 116 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 5/16 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...