./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/jm2006_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.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/loop-lit/jm2006_variant.i -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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d9ecf0997a3226968b15d351ec48dae1cc4b70e9 .............................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:01:12,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:01:12,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:01:12,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:01:12,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:01:12,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:01:12,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:01:12,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:01:12,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:01:12,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:01:12,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:01:12,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:01:12,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:01:12,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:01:12,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:01:12,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:01:12,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:01:12,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:01:12,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:01:12,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:01:12,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:01:12,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:01:12,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:01:12,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:01:12,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:01:12,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:01:12,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:01:12,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:01:12,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:01:12,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:01:12,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:01:12,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:01:12,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:01:12,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:01:12,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:01:12,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:01:12,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:01:12,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:01:12,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:01:12,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:01:12,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:01:12,534 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:01:12,556 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:01:12,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:01:12,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:01:12,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:01:12,558 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:01:12,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:01:12,558 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:01:12,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:01:12,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:01:12,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:01:12,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:01:12,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:01:12,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:01:12,560 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:01:12,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:01:12,560 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:01:12,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:01:12,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:01:12,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:01:12,561 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:01:12,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:01:12,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:01:12,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:01:12,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:01:12,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:01:12,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:01:12,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:01:12,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:01:12,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:01:12,564 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(reach_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 -> d9ecf0997a3226968b15d351ec48dae1cc4b70e9 [2020-10-20 01:01:12,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:01:12,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:01:12,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:01:12,776 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:01:12,777 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:01:12,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/jm2006_variant.i [2020-10-20 01:01:12,848 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35366d3b8/62369ace32af482796aa01f4166ec4c4/FLAG225e3324a [2020-10-20 01:01:13,298 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:01:13,299 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/jm2006_variant.i [2020-10-20 01:01:13,305 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35366d3b8/62369ace32af482796aa01f4166ec4c4/FLAG225e3324a [2020-10-20 01:01:13,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35366d3b8/62369ace32af482796aa01f4166ec4c4 [2020-10-20 01:01:13,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:01:13,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:01:13,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:01:13,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:01:13,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:01:13,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:01:13" (1/1) ... [2020-10-20 01:01:13,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3091c853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:01:13, skipping insertion in model container [2020-10-20 01:01:13,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:01:13" (1/1) ... [2020-10-20 01:01:13,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:01:13,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:01:13,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:01:13,953 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:01:13,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:01:13,984 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:01:13,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:01:13 WrapperNode [2020-10-20 01:01:13,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:01:13,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:01:13,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:01:13,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:01:13,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:01:13" (1/1) ... [2020-10-20 01:01:14,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:01:13" (1/1) ... [2020-10-20 01:01:14,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:01:14,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:01:14,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:01:14,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:01:14,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:01:13" (1/1) ... [2020-10-20 01:01:14,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:01:13" (1/1) ... [2020-10-20 01:01:14,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:01:13" (1/1) ... [2020-10-20 01:01:14,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:01:13" (1/1) ... [2020-10-20 01:01:14,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:01:13" (1/1) ... [2020-10-20 01:01:14,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:01:13" (1/1) ... [2020-10-20 01:01:14,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:01:13" (1/1) ... [2020-10-20 01:01:14,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:01:14,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:01:14,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:01:14,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:01:14,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:01:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:01:14,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:01:14,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:01:14,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:01:14,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:01:14,354 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:01:14,354 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-20 01:01:14,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:01:14 BoogieIcfgContainer [2020-10-20 01:01:14,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:01:14,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:01:14,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:01:14,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:01:14,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:01:13" (1/3) ... [2020-10-20 01:01:14,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1592930e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:01:14, skipping insertion in model container [2020-10-20 01:01:14,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:01:13" (2/3) ... [2020-10-20 01:01:14,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1592930e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:01:14, skipping insertion in model container [2020-10-20 01:01:14,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:01:14" (3/3) ... [2020-10-20 01:01:14,388 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2020-10-20 01:01:14,416 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:01:14,432 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 01:01:14,465 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 01:01:14,485 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:01:14,485 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:01:14,485 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:01:14,486 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:01:14,486 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:01:14,486 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:01:14,486 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:01:14,486 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:01:14,499 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-10-20 01:01:14,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 01:01:14,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:01:14,504 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:01:14,505 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:01:14,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:01:14,509 INFO L82 PathProgramCache]: Analyzing trace with hash 827801651, now seen corresponding path program 1 times [2020-10-20 01:01:14,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:01:14,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736532797] [2020-10-20 01:01:14,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:01:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:01:14,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:01:14,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736532797] [2020-10-20 01:01:14,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:01:14,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:01:14,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644851023] [2020-10-20 01:01:14,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:01:14,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:01:14,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:01:14,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:01:14,853 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2020-10-20 01:01:15,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:01:15,052 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2020-10-20 01:01:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:01:15,054 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-20 01:01:15,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:01:15,065 INFO L225 Difference]: With dead ends: 41 [2020-10-20 01:01:15,065 INFO L226 Difference]: Without dead ends: 12 [2020-10-20 01:01:15,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:01:15,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-20 01:01:15,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-20 01:01:15,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-20 01:01:15,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-10-20 01:01:15,105 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2020-10-20 01:01:15,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:01:15,106 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-10-20 01:01:15,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:01:15,106 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-10-20 01:01:15,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 01:01:15,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:01:15,107 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:01:15,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:01:15,107 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:01:15,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:01:15,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1435186616, now seen corresponding path program 1 times [2020-10-20 01:01:15,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:01:15,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599524559] [2020-10-20 01:01:15,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:01:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:01:15,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:01:15,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599524559] [2020-10-20 01:01:15,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002201653] [2020-10-20 01:01:15,288 INFO L95 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 [2020-10-20 01:01:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:01:15,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 19 conjunts are in the unsatisfiable core [2020-10-20 01:01:15,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:01:15,442 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 01:01:15,454 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 01:01:15,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:01:15,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:01:15,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-10-20 01:01:15,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728108367] [2020-10-20 01:01:15,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 01:01:15,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:01:15,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 01:01:15,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:01:15,492 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 9 states. [2020-10-20 01:01:15,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:01:15,658 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2020-10-20 01:01:15,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:01:15,659 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2020-10-20 01:01:15,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:01:15,659 INFO L225 Difference]: With dead ends: 22 [2020-10-20 01:01:15,660 INFO L226 Difference]: Without dead ends: 14 [2020-10-20 01:01:15,661 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-20 01:01:15,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-10-20 01:01:15,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-10-20 01:01:15,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-20 01:01:15,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-10-20 01:01:15,671 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2020-10-20 01:01:15,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:01:15,671 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2020-10-20 01:01:15,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 01:01:15,672 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-10-20 01:01:15,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 01:01:15,672 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:01:15,673 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:01:15,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-10-20 01:01:15,887 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:01:15,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:01:15,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1629316840, now seen corresponding path program 2 times [2020-10-20 01:01:15,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:01:15,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327438018] [2020-10-20 01:01:15,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:01:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:01:16,029 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 01:01:16,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327438018] [2020-10-20 01:01:16,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433923557] [2020-10-20 01:01:16,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 [2020-10-20 01:01:16,073 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 01:01:16,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 01:01:16,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 31 conjunts are in the unsatisfiable core [2020-10-20 01:01:16,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:01:16,207 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 01:01:16,209 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-20 01:01:16,229 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:01:16,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:01:16,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2020-10-20 01:01:16,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88111320] [2020-10-20 01:01:16,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 01:01:16,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:01:16,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 01:01:16,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-20 01:01:16,232 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 12 states. [2020-10-20 01:01:16,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:01:16,402 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-10-20 01:01:16,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 01:01:16,403 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2020-10-20 01:01:16,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:01:16,403 INFO L225 Difference]: With dead ends: 17 [2020-10-20 01:01:16,404 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:01:16,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-20 01:01:16,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:01:16,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:01:16,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:01:16,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:01:16,406 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-20 01:01:16,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:01:16,407 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:01:16,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 01:01:16,407 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:01:16,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:01:16,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:01:16,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:01:16,692 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:01:16,693 INFO L270 CegarLoopResult]: At program point L33-2(lines 33 37) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~j~0)) (.cse0 (+ ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~i~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-10-20 01:01:16,693 INFO L274 CegarLoopResult]: For program point L33-3(lines 24 42) no Hoare annotation was computed. [2020-10-20 01:01:16,693 INFO L274 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-10-20 01:01:16,693 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-10-20 01:01:16,693 INFO L277 CegarLoopResult]: At program point L38(lines 38 40) the Hoare annotation is: true [2020-10-20 01:01:16,693 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:01:16,694 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:01:16,694 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:01:16,694 INFO L274 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-10-20 01:01:16,694 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-20 01:01:16,694 INFO L274 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-10-20 01:01:16,694 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-10-20 01:01:16,695 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-10-20 01:01:16,695 INFO L274 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-10-20 01:01:16,695 INFO L277 CegarLoopResult]: At program point L41(lines 24 42) the Hoare annotation is: true [2020-10-20 01:01:16,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:01:16 BoogieIcfgContainer [2020-10-20 01:01:16,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:01:16,713 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:01:16,713 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:01:16,713 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:01:16,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:01:14" (3/4) ... [2020-10-20 01:01:16,717 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:01:16,728 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-20 01:01:16,728 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 01:01:16,729 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:01:16,729 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:01:16,782 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:01:16,785 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:01:16,788 INFO L168 Benchmark]: Toolchain (without parser) took 3116.98 ms. Allocated memory was 35.1 MB in the beginning and 53.0 MB in the end (delta: 17.8 MB). Free memory was 13.3 MB in the beginning and 10.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 20.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:01:16,790 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 34.1 MB. Free memory was 19.8 MB in the beginning and 19.8 MB in the end (delta: 32.0 kB). Peak memory consumption was 32.0 kB. Max. memory is 14.3 GB. [2020-10-20 01:01:16,791 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.89 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 12.4 MB in the beginning and 24.0 MB in the end (delta: -11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:01:16,807 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.90 ms. Allocated memory is still 43.5 MB. Free memory was 24.0 MB in the beginning and 22.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:01:16,808 INFO L168 Benchmark]: Boogie Preprocessor took 19.66 ms. Allocated memory is still 43.5 MB. Free memory was 22.3 MB in the beginning and 21.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:01:16,809 INFO L168 Benchmark]: RCFGBuilder took 317.30 ms. Allocated memory was 43.5 MB in the beginning and 45.1 MB in the end (delta: 1.6 MB). Free memory was 21.0 MB in the beginning and 19.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:01:16,810 INFO L168 Benchmark]: TraceAbstraction took 2353.50 ms. Allocated memory was 45.1 MB in the beginning and 53.0 MB in the end (delta: 7.9 MB). Free memory was 19.3 MB in the beginning and 13.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:01:16,812 INFO L168 Benchmark]: Witness Printer took 72.59 ms. Allocated memory is still 53.0 MB. Free memory was 13.6 MB in the beginning and 10.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:01:16,821 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 34.1 MB. Free memory was 19.8 MB in the beginning and 19.8 MB in the end (delta: 32.0 kB). Peak memory consumption was 32.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 308.89 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 12.4 MB in the beginning and 24.0 MB in the end (delta: -11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 33.90 ms. Allocated memory is still 43.5 MB. Free memory was 24.0 MB in the beginning and 22.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 19.66 ms. Allocated memory is still 43.5 MB. Free memory was 22.3 MB in the beginning and 21.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 317.30 ms. Allocated memory was 43.5 MB in the beginning and 45.1 MB in the end (delta: 1.6 MB). Free memory was 21.0 MB in the beginning and 19.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 2353.50 ms. Allocated memory was 45.1 MB in the beginning and 53.0 MB in the end (delta: 7.9 MB). Free memory was 19.3 MB in the beginning and 13.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 14.3 GB. * Witness Printer took 72.59 ms. Allocated memory is still 53.0 MB. Free memory was 13.6 MB in the beginning and 10.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 33]: Loop Invariant Derived loop invariant: z + y + i <= x + j && x + j <= z + y + i - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 35 SDslu, 74 SDs, 0 SdLazy, 121 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 15 NumberOfFragments, 19 HoareAnnotationTreeSize, 3 FomulaSimplifications, 13 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 117 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 4392 SizeOfPredicates, 14 NumberOfNonLiveVariables, 138 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...