/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --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.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 03:10:42,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 03:10:42,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 03:10:42,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 03:10:42,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 03:10:42,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 03:10:42,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 03:10:42,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 03:10:42,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 03:10:42,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 03:10:42,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 03:10:42,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 03:10:42,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 03:10:42,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 03:10:42,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 03:10:42,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 03:10:42,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 03:10:42,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 03:10:42,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 03:10:42,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 03:10:42,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 03:10:42,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 03:10:42,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 03:10:42,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 03:10:42,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 03:10:42,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 03:10:42,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 03:10:42,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 03:10:42,356 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 [2020-08-22 03:10:42,401 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 03:10:42,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 03:10:42,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 03:10:42,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 03:10:42,406 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 03:10:42,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 03:10:42,407 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 03:10:42,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 03:10:42,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 03:10:42,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 03:10:42,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 03:10:42,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 03:10:42,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 03:10:42,409 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 03:10:42,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 03:10:42,409 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 03:10:42,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 03:10:42,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 03:10:42,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 03:10:42,410 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 03:10:42,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 03:10:42,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 03:10:42,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 03:10:42,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 03:10:42,412 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 03:10:42,412 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 03:10:42,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 03:10:42,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 03:10:42,413 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 03:10:42,413 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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-08-22 03:10:42,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 03:10:42,748 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 03:10:42,752 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 03:10:42,754 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 03:10:42,754 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 03:10:42,755 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006.i [2020-08-22 03:10:42,820 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0be817571/fef64452a603407886e9cb33e74905e1/FLAG0cee0276d [2020-08-22 03:10:43,289 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 03:10:43,290 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-lit/jm2006.i [2020-08-22 03:10:43,297 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0be817571/fef64452a603407886e9cb33e74905e1/FLAG0cee0276d [2020-08-22 03:10:43,646 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0be817571/fef64452a603407886e9cb33e74905e1 [2020-08-22 03:10:43,654 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 03:10:43,656 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 03:10:43,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 03:10:43,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 03:10:43,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 03:10:43,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:10:43" (1/1) ... [2020-08-22 03:10:43,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@528baabb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:10:43, skipping insertion in model container [2020-08-22 03:10:43,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:10:43" (1/1) ... [2020-08-22 03:10:43,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 03:10:43,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 03:10:43,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:10:43,912 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 03:10:43,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:10:43,944 INFO L208 MainTranslator]: Completed translation [2020-08-22 03:10:43,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:10:43 WrapperNode [2020-08-22 03:10:43,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 03:10:43,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 03:10:43,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 03:10:43,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 03:10:43,961 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:10:43" (1/1) ... [2020-08-22 03:10:43,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:10:43" (1/1) ... [2020-08-22 03:10:43,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:10:43" (1/1) ... [2020-08-22 03:10:43,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:10:43" (1/1) ... [2020-08-22 03:10:43,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:10:43" (1/1) ... [2020-08-22 03:10:43,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:10:43" (1/1) ... [2020-08-22 03:10:43,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:10:43" (1/1) ... [2020-08-22 03:10:44,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 03:10:44,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 03:10:44,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 03:10:44,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 03:10:44,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:10:43" (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 [2020-08-22 03:10:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 03:10:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 03:10:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 03:10:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 03:10:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 03:10:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 03:10:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 03:10:44,165 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 03:10:44,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 03:10:44,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 03:10:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 03:10:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 03:10:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 03:10:44,377 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 03:10:44,377 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 03:10:44,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:10:44 BoogieIcfgContainer [2020-08-22 03:10:44,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 03:10:44,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 03:10:44,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 03:10:44,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 03:10:44,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 03:10:43" (1/3) ... [2020-08-22 03:10:44,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3c5cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:10:44, skipping insertion in model container [2020-08-22 03:10:44,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:10:43" (2/3) ... [2020-08-22 03:10:44,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3c5cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:10:44, skipping insertion in model container [2020-08-22 03:10:44,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:10:44" (3/3) ... [2020-08-22 03:10:44,390 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006.i [2020-08-22 03:10:44,400 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 03:10:44,407 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 03:10:44,421 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 03:10:44,444 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 03:10:44,444 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 03:10:44,444 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 03:10:44,444 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 03:10:44,444 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 03:10:44,445 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 03:10:44,445 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 03:10:44,445 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 03:10:44,462 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-08-22 03:10:44,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-08-22 03:10:44,468 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:10:44,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:10:44,469 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:10:44,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:10:44,475 INFO L82 PathProgramCache]: Analyzing trace with hash -42161200, now seen corresponding path program 1 times [2020-08-22 03:10:44,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:10:44,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137994601] [2020-08-22 03:10:44,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:10:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:10:44,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:10:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:10:44,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:10:44,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137994601] [2020-08-22 03:10:44,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:10:44,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 03:10:44,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444776490] [2020-08-22 03:10:44,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 03:10:44,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:10:44,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 03:10:44,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 03:10:44,835 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 7 states. [2020-08-22 03:10:45,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:10:45,044 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2020-08-22 03:10:45,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 03:10:45,046 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-08-22 03:10:45,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:10:45,055 INFO L225 Difference]: With dead ends: 49 [2020-08-22 03:10:45,056 INFO L226 Difference]: Without dead ends: 14 [2020-08-22 03:10:45,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-08-22 03:10:45,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-08-22 03:10:45,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-08-22 03:10:45,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-08-22 03:10:45,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-08-22 03:10:45,099 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2020-08-22 03:10:45,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:10:45,100 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2020-08-22 03:10:45,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 03:10:45,100 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-08-22 03:10:45,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-22 03:10:45,101 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:10:45,101 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:10:45,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 03:10:45,102 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:10:45,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:10:45,102 INFO L82 PathProgramCache]: Analyzing trace with hash 219103455, now seen corresponding path program 1 times [2020-08-22 03:10:45,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:10:45,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1000483824] [2020-08-22 03:10:45,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:10:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:10:45,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:10:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:10:45,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:10:45,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1000483824] [2020-08-22 03:10:45,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:10:45,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 03:10:45,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371243] [2020-08-22 03:10:45,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 03:10:45,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:10:45,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 03:10:45,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-08-22 03:10:45,333 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 8 states. [2020-08-22 03:10:45,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:10:45,462 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-08-22 03:10:45,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 03:10:45,463 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-08-22 03:10:45,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:10:45,464 INFO L225 Difference]: With dead ends: 21 [2020-08-22 03:10:45,465 INFO L226 Difference]: Without dead ends: 15 [2020-08-22 03:10:45,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-08-22 03:10:45,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-08-22 03:10:45,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-08-22 03:10:45,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-08-22 03:10:45,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-08-22 03:10:45,472 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2020-08-22 03:10:45,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:10:45,473 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-08-22 03:10:45,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 03:10:45,473 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-08-22 03:10:45,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-22 03:10:45,474 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:10:45,474 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:10:45,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 03:10:45,475 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:10:45,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:10:45,475 INFO L82 PathProgramCache]: Analyzing trace with hash -271626832, now seen corresponding path program 2 times [2020-08-22 03:10:45,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:10:45,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [124589632] [2020-08-22 03:10:45,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:10:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:10:45,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:10:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:10:45,677 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:10:45,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [124589632] [2020-08-22 03:10:45,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:10:45,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 03:10:45,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58560325] [2020-08-22 03:10:45,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 03:10:45,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:10:45,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 03:10:45,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-22 03:10:45,680 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 9 states. [2020-08-22 03:10:45,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:10:45,772 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-08-22 03:10:45,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 03:10:45,773 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2020-08-22 03:10:45,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:10:45,774 INFO L225 Difference]: With dead ends: 22 [2020-08-22 03:10:45,774 INFO L226 Difference]: Without dead ends: 16 [2020-08-22 03:10:45,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-08-22 03:10:45,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-08-22 03:10:45,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-08-22 03:10:45,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-08-22 03:10:45,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-08-22 03:10:45,780 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2020-08-22 03:10:45,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:10:45,780 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-08-22 03:10:45,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 03:10:45,781 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-08-22 03:10:45,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-22 03:10:45,781 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:10:45,781 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:10:45,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 03:10:45,782 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:10:45,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:10:45,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1695603455, now seen corresponding path program 3 times [2020-08-22 03:10:45,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:10:45,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561057854] [2020-08-22 03:10:45,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:10:45,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:10:46,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:10:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:10:46,008 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:10:46,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [561057854] [2020-08-22 03:10:46,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:10:46,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-22 03:10:46,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161316821] [2020-08-22 03:10:46,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 03:10:46,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:10:46,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 03:10:46,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-08-22 03:10:46,014 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 10 states. [2020-08-22 03:10:46,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:10:46,096 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2020-08-22 03:10:46,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 03:10:46,096 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-08-22 03:10:46,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:10:46,097 INFO L225 Difference]: With dead ends: 16 [2020-08-22 03:10:46,097 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 03:10:46,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-08-22 03:10:46,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 03:10:46,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 03:10:46,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 03:10:46,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 03:10:46,099 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-08-22 03:10:46,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:10:46,099 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 03:10:46,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 03:10:46,100 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 03:10:46,100 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 03:10:46,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 03:10:46,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 03:10:46,156 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 03:10:46,156 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 03:10:46,156 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 03:10:46,156 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 03:10:46,156 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 03:10:46,157 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 03:10:46,157 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-08-22 03:10:46,157 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-08-22 03:10:46,157 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-08-22 03:10:46,157 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-08-22 03:10:46,157 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 28) the Hoare annotation is: true [2020-08-22 03:10:46,158 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (= main_~y~0 0) [2020-08-22 03:10:46,158 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 28) no Hoare annotation was computed. [2020-08-22 03:10:46,158 INFO L268 CegarLoopResult]: For program point L24(lines 24 26) no Hoare annotation was computed. [2020-08-22 03:10:46,158 INFO L264 CegarLoopResult]: At program point L20-2(lines 20 23) the Hoare annotation is: (let ((.cse1 (+ main_~y~0 main_~i~0)) (.cse0 (+ main_~x~0 main_~j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-08-22 03:10:46,159 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-08-22 03:10:46,159 INFO L268 CegarLoopResult]: For program point L20-3(lines 13 28) no Hoare annotation was computed. [2020-08-22 03:10:46,159 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 28) no Hoare annotation was computed. [2020-08-22 03:10:46,159 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-08-22 03:10:46,159 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-08-22 03:10:46,159 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-08-22 03:10:46,159 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-08-22 03:10:46,160 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-08-22 03:10:46,160 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-08-22 03:10:46,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 03:10:46 BoogieIcfgContainer [2020-08-22 03:10:46,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 03:10:46,181 INFO L168 Benchmark]: Toolchain (without parser) took 2524.07 ms. Allocated memory was 140.0 MB in the beginning and 230.7 MB in the end (delta: 90.7 MB). Free memory was 101.9 MB in the beginning and 136.9 MB in the end (delta: -35.0 MB). Peak memory consumption was 55.7 MB. Max. memory is 7.1 GB. [2020-08-22 03:10:46,182 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 03:10:46,183 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.40 ms. Allocated memory is still 140.0 MB. Free memory was 101.7 MB in the beginning and 91.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-08-22 03:10:46,184 INFO L168 Benchmark]: Boogie Preprocessor took 141.40 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 91.8 MB in the beginning and 180.2 MB in the end (delta: -88.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-08-22 03:10:46,185 INFO L168 Benchmark]: RCFGBuilder took 293.85 ms. Allocated memory is still 200.3 MB. Free memory was 180.2 MB in the beginning and 166.2 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-08-22 03:10:46,186 INFO L168 Benchmark]: TraceAbstraction took 1795.50 ms. Allocated memory was 200.3 MB in the beginning and 230.7 MB in the end (delta: 30.4 MB). Free memory was 165.5 MB in the beginning and 136.9 MB in the end (delta: 28.6 MB). Peak memory consumption was 59.0 MB. Max. memory is 7.1 GB. [2020-08-22 03:10:46,190 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 288.40 ms. Allocated memory is still 140.0 MB. Free memory was 101.7 MB in the beginning and 91.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.40 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 91.8 MB in the beginning and 180.2 MB in the end (delta: -88.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 293.85 ms. Allocated memory is still 200.3 MB. Free memory was 180.2 MB in the beginning and 166.2 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1795.50 ms. Allocated memory was 200.3 MB in the beginning and 230.7 MB in the end (delta: 30.4 MB). Free memory was 165.5 MB in the beginning and 136.9 MB in the end (delta: 28.6 MB). Peak memory consumption was 59.0 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: 20]: Loop Invariant Derived loop invariant: x + j <= y + i && y + i <= x + j - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 31 SDslu, 194 SDs, 0 SdLazy, 150 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 18 NumberOfFragments, 23 HoareAnnotationTreeSize, 11 FomulaSimplifications, 96 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 54 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 4275 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/10 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...