/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 23:07:25,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 23:07:25,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 23:07:25,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 23:07:25,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 23:07:25,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 23:07:25,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 23:07:25,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 23:07:25,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 23:07:25,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 23:07:25,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 23:07:25,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 23:07:25,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 23:07:25,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 23:07:25,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 23:07:25,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 23:07:25,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 23:07:25,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 23:07:25,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 23:07:25,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 23:07:25,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 23:07:25,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 23:07:25,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 23:07:25,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 23:07:25,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 23:07:25,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 23:07:25,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 23:07:25,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 23:07:25,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 23:07:25,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 23:07:25,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 23:07:25,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 23:07:25,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 23:07:25,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 23:07:25,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 23:07:25,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 23:07:25,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 23:07:25,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 23:07:25,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 23:07:25,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 23:07:25,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 23:07:25,482 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 23:07:25,525 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 23:07:25,525 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 23:07:25,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 23:07:25,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 23:07:25,527 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 23:07:25,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 23:07:25,527 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 23:07:25,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 23:07:25,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 23:07:25,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 23:07:25,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 23:07:25,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 23:07:25,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 23:07:25,530 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 23:07:25,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 23:07:25,531 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 23:07:25,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 23:07:25,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 23:07:25,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 23:07:25,531 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 23:07:25,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 23:07:25,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 23:07:25,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 23:07:25,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 23:07:25,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 23:07:25,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 23:07:25,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 23:07:25,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 23:07:25,533 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 23:07:25,533 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-08-21 23:07:25,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 23:07:25,871 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 23:07:25,874 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 23:07:25,875 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 23:07:25,876 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 23:07:25,876 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i [2020-08-21 23:07:25,943 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e6e08bfa7/758dd44108ee442bbc70432cab5262cc/FLAG53801ade8 [2020-08-21 23:07:26,392 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 23:07:26,393 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-lit/jm2006_variant.i [2020-08-21 23:07:26,398 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e6e08bfa7/758dd44108ee442bbc70432cab5262cc/FLAG53801ade8 [2020-08-21 23:07:26,827 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e6e08bfa7/758dd44108ee442bbc70432cab5262cc [2020-08-21 23:07:26,840 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 23:07:26,842 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 23:07:26,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 23:07:26,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 23:07:26,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 23:07:26,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:07:26" (1/1) ... [2020-08-21 23:07:26,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b0e50c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:07:26, skipping insertion in model container [2020-08-21 23:07:26,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:07:26" (1/1) ... [2020-08-21 23:07:26,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 23:07:26,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 23:07:27,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:07:27,044 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 23:07:27,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:07:27,071 INFO L208 MainTranslator]: Completed translation [2020-08-21 23:07:27,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:07:27 WrapperNode [2020-08-21 23:07:27,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 23:07:27,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 23:07:27,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 23:07:27,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 23:07:27,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:07:27" (1/1) ... [2020-08-21 23:07:27,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:07:27" (1/1) ... [2020-08-21 23:07:27,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:07:27" (1/1) ... [2020-08-21 23:07:27,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:07:27" (1/1) ... [2020-08-21 23:07:27,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:07:27" (1/1) ... [2020-08-21 23:07:27,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:07:27" (1/1) ... [2020-08-21 23:07:27,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:07:27" (1/1) ... [2020-08-21 23:07:27,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 23:07:27,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 23:07:27,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 23:07:27,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 23:07:27,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:07:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-21 23:07:27,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 23:07:27,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 23:07:27,241 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-21 23:07:27,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-21 23:07:27,241 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 23:07:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 23:07:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 23:07:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-21 23:07:27,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-21 23:07:27,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 23:07:27,242 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 23:07:27,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 23:07:27,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 23:07:27,463 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 23:07:27,463 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 23:07:27,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:07:27 BoogieIcfgContainer [2020-08-21 23:07:27,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 23:07:27,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 23:07:27,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 23:07:27,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 23:07:27,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:07:26" (1/3) ... [2020-08-21 23:07:27,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289fe59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:07:27, skipping insertion in model container [2020-08-21 23:07:27,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:07:27" (2/3) ... [2020-08-21 23:07:27,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289fe59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:07:27, skipping insertion in model container [2020-08-21 23:07:27,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:07:27" (3/3) ... [2020-08-21 23:07:27,477 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2020-08-21 23:07:27,489 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 23:07:27,497 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 23:07:27,527 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 23:07:27,585 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 23:07:27,585 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 23:07:27,586 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 23:07:27,586 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 23:07:27,586 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 23:07:27,586 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 23:07:27,586 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 23:07:27,586 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 23:07:27,611 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-08-21 23:07:27,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-21 23:07:27,617 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:27,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:27,618 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:27,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:27,623 INFO L82 PathProgramCache]: Analyzing trace with hash -362650722, now seen corresponding path program 1 times [2020-08-21 23:07:27,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:27,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503425297] [2020-08-21 23:07:27,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:27,984 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 17 [2020-08-21 23:07:28,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:28,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:28,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:28,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1503425297] [2020-08-21 23:07:28,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:07:28,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 23:07:28,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828021943] [2020-08-21 23:07:28,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 23:07:28,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:28,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 23:07:28,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:07:28,147 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 7 states. [2020-08-21 23:07:28,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:28,310 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2020-08-21 23:07:28,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 23:07:28,313 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-08-21 23:07:28,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:28,323 INFO L225 Difference]: With dead ends: 47 [2020-08-21 23:07:28,323 INFO L226 Difference]: Without dead ends: 15 [2020-08-21 23:07:28,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-08-21 23:07:28,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-08-21 23:07:28,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-08-21 23:07:28,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-08-21 23:07:28,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-08-21 23:07:28,370 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2020-08-21 23:07:28,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:28,371 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-08-21 23:07:28,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 23:07:28,371 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-08-21 23:07:28,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-21 23:07:28,372 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:28,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:28,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 23:07:28,373 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:28,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:28,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1126137131, now seen corresponding path program 1 times [2020-08-21 23:07:28,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:28,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473148589] [2020-08-21 23:07:28,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:28,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:28,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:28,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473148589] [2020-08-21 23:07:28,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:07:28,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 23:07:28,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571054678] [2020-08-21 23:07:28,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 23:07:28,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:28,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 23:07:28,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:07:28,586 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 8 states. [2020-08-21 23:07:28,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:28,696 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-08-21 23:07:28,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 23:07:28,696 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-08-21 23:07:28,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:28,697 INFO L225 Difference]: With dead ends: 22 [2020-08-21 23:07:28,698 INFO L226 Difference]: Without dead ends: 16 [2020-08-21 23:07:28,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:07:28,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-08-21 23:07:28,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-08-21 23:07:28,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-08-21 23:07:28,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-08-21 23:07:28,704 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2020-08-21 23:07:28,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:28,705 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-08-21 23:07:28,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 23:07:28,705 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-08-21 23:07:28,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-21 23:07:28,706 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:07:28,706 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 23:07:28,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 23:07:28,707 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:07:28,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:07:28,707 INFO L82 PathProgramCache]: Analyzing trace with hash 975587966, now seen corresponding path program 2 times [2020-08-21 23:07:28,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:07:28,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1193458814] [2020-08-21 23:07:28,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:07:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:28,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:07:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:07:28,890 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:07:28,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1193458814] [2020-08-21 23:07:28,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:07:28,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 23:07:28,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12831307] [2020-08-21 23:07:28,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 23:07:28,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:07:28,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 23:07:28,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-21 23:07:28,893 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 9 states. [2020-08-21 23:07:28,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:07:28,974 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2020-08-21 23:07:28,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 23:07:28,974 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-08-21 23:07:28,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:07:28,975 INFO L225 Difference]: With dead ends: 16 [2020-08-21 23:07:28,975 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 23:07:28,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-08-21 23:07:28,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 23:07:28,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 23:07:28,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 23:07:28,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 23:07:28,977 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-08-21 23:07:28,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:07:28,977 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 23:07:28,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 23:07:28,978 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 23:07:28,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 23:07:28,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 23:07:28,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 23:07:29,035 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-21 23:07:29,035 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 23:07:29,036 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 23:07:29,036 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-21 23:07:29,036 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 23:07:29,036 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 23:07:29,036 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-08-21 23:07:29,036 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-08-21 23:07:29,036 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-08-21 23:07:29,037 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-08-21 23:07:29,037 INFO L268 CegarLoopResult]: For program point L27(lines 27 29) no Hoare annotation was computed. [2020-08-21 23:07:29,037 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 31) no Hoare annotation was computed. [2020-08-21 23:07:29,037 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-08-21 23:07:29,037 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 31) no Hoare annotation was computed. [2020-08-21 23:07:29,037 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 31) the Hoare annotation is: true [2020-08-21 23:07:29,038 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (= (+ main_~y~0 main_~z~0) 0) [2020-08-21 23:07:29,038 INFO L264 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0)) (.cse0 (+ main_~i~0 main_~y~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-08-21 23:07:29,038 INFO L268 CegarLoopResult]: For program point L22-3(lines 13 31) no Hoare annotation was computed. [2020-08-21 23:07:29,038 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-08-21 23:07:29,038 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-08-21 23:07:29,039 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-08-21 23:07:29,039 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-08-21 23:07:29,039 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-08-21 23:07:29,039 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-08-21 23:07:29,039 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-08-21 23:07:29,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 11:07:29 BoogieIcfgContainer [2020-08-21 23:07:29,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 23:07:29,061 INFO L168 Benchmark]: Toolchain (without parser) took 2217.98 ms. Allocated memory was 138.9 MB in the beginning and 232.8 MB in the end (delta: 93.8 MB). Free memory was 101.9 MB in the beginning and 155.4 MB in the end (delta: -53.5 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. [2020-08-21 23:07:29,062 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-21 23:07:29,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.52 ms. Allocated memory is still 138.9 MB. Free memory was 101.7 MB in the beginning and 92.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-08-21 23:07:29,064 INFO L168 Benchmark]: Boogie Preprocessor took 100.55 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 92.0 MB in the beginning and 179.3 MB in the end (delta: -87.3 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-08-21 23:07:29,065 INFO L168 Benchmark]: RCFGBuilder took 294.20 ms. Allocated memory is still 200.3 MB. Free memory was 178.6 MB in the beginning and 164.8 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2020-08-21 23:07:29,066 INFO L168 Benchmark]: TraceAbstraction took 1589.73 ms. Allocated memory was 200.3 MB in the beginning and 232.8 MB in the end (delta: 32.5 MB). Free memory was 164.8 MB in the beginning and 155.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 41.9 MB. Max. memory is 7.1 GB. [2020-08-21 23:07:29,071 INFO L336 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 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 226.52 ms. Allocated memory is still 138.9 MB. Free memory was 101.7 MB in the beginning and 92.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.55 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 92.0 MB in the beginning and 179.3 MB in the end (delta: -87.3 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 294.20 ms. Allocated memory is still 200.3 MB. Free memory was 178.6 MB in the beginning and 164.8 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1589.73 ms. Allocated memory was 200.3 MB in the beginning and 232.8 MB in the end (delta: 32.5 MB). Free memory was 164.8 MB in the beginning and 155.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 41.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 22]: Loop Invariant Derived loop invariant: i + y + z <= x + j && x + j <= i + y + z - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 41 SDtfs, 25 SDslu, 152 SDs, 0 SdLazy, 104 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 7 LocationsWithAnnotation, 10 PreInvPairs, 15 NumberOfFragments, 27 HoareAnnotationTreeSize, 10 FomulaSimplifications, 73 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 46 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 3526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 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...