/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 02:29:55,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 02:29:55,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 02:29:55,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 02:29:55,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 02:29:55,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 02:29:55,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 02:29:55,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 02:29:55,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 02:29:55,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 02:29:55,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 02:29:55,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 02:29:55,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 02:29:55,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 02:29:55,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 02:29:55,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 02:29:55,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 02:29:55,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 02:29:55,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 02:29:55,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 02:29:55,522 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 02:29:55,545 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 02:29:55,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 02:29:55,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 02:29:55,550 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 02:29:55,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 02:29:55,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 02:29:55,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 02:29:55,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 02:29:55,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 02:29:55,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 02:29:55,552 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 02:29:55,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 02:29:55,553 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 02:29:55,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 02:29:55,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 02:29:55,554 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 02:29:55,554 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 02:29:55,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 02:29:55,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 02:29:55,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 02:29:55,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 02:29:55,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 02:29:55,556 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 02:29:55,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 02:29:55,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 02:29:55,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 02:29:55,972 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 02:29:55,972 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 02:29:55,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c [2020-10-24 02:29:56,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdfa6aa57/53ee689f660b41258b8ea598a6ae83ad/FLAGe01d5e888 [2020-10-24 02:29:56,696 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 02:29:56,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006.c.i.v+cfa-reducer.c [2020-10-24 02:29:56,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdfa6aa57/53ee689f660b41258b8ea598a6ae83ad/FLAGe01d5e888 [2020-10-24 02:29:57,038 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdfa6aa57/53ee689f660b41258b8ea598a6ae83ad [2020-10-24 02:29:57,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 02:29:57,048 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 02:29:57,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 02:29:57,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 02:29:57,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 02:29:57,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:29:57" (1/1) ... [2020-10-24 02:29:57,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a0afa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:57, skipping insertion in model container [2020-10-24 02:29:57,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:29:57" (1/1) ... [2020-10-24 02:29:57,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 02:29:57,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 02:29:57,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:29:57,258 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 02:29:57,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:29:57,294 INFO L208 MainTranslator]: Completed translation [2020-10-24 02:29:57,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:57 WrapperNode [2020-10-24 02:29:57,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 02:29:57,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 02:29:57,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 02:29:57,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 02:29:57,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:57" (1/1) ... [2020-10-24 02:29:57,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:57" (1/1) ... [2020-10-24 02:29:57,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:57" (1/1) ... [2020-10-24 02:29:57,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:57" (1/1) ... [2020-10-24 02:29:57,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:57" (1/1) ... [2020-10-24 02:29:57,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:57" (1/1) ... [2020-10-24 02:29:57,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:57" (1/1) ... [2020-10-24 02:29:57,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 02:29:57,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 02:29:57,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 02:29:57,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 02:29:57,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 02:29:57,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 02:29:57,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 02:29:57,409 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 02:29:57,410 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-24 02:29:57,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 02:29:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 02:29:57,410 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 02:29:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 02:29:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 02:29:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-24 02:29:57,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-24 02:29:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 02:29:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 02:29:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 02:29:57,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 02:29:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 02:29:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 02:29:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 02:29:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 02:29:57,749 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 02:29:57,749 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-24 02:29:57,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:29:57 BoogieIcfgContainer [2020-10-24 02:29:57,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 02:29:57,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 02:29:57,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 02:29:57,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 02:29:57,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:29:57" (1/3) ... [2020-10-24 02:29:57,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc2e24c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:29:57, skipping insertion in model container [2020-10-24 02:29:57,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:29:57" (2/3) ... [2020-10-24 02:29:57,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc2e24c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:29:57, skipping insertion in model container [2020-10-24 02:29:57,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:29:57" (3/3) ... [2020-10-24 02:29:57,762 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2020-10-24 02:29:57,774 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 02:29:57,782 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 02:29:57,825 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 02:29:57,857 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 02:29:57,857 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 02:29:57,857 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 02:29:57,858 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 02:29:57,858 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 02:29:57,858 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 02:29:57,858 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 02:29:57,858 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 02:29:57,875 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-10-24 02:29:57,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-24 02:29:57,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:29:57,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:29:57,887 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:29:57,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:29:57,894 INFO L82 PathProgramCache]: Analyzing trace with hash 866746179, now seen corresponding path program 1 times [2020-10-24 02:29:57,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:29:57,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424546947] [2020-10-24 02:29:57,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:29:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:29:58,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:29:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:29:58,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:29:58,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424546947] [2020-10-24 02:29:58,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:29:58,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-24 02:29:58,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966354839] [2020-10-24 02:29:58,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 02:29:58,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:29:58,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 02:29:58,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-24 02:29:58,468 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 9 states. [2020-10-24 02:29:59,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:29:59,238 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2020-10-24 02:29:59,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 02:29:59,241 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2020-10-24 02:29:59,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:29:59,252 INFO L225 Difference]: With dead ends: 77 [2020-10-24 02:29:59,252 INFO L226 Difference]: Without dead ends: 43 [2020-10-24 02:29:59,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-10-24 02:29:59,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-24 02:29:59,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2020-10-24 02:29:59,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-24 02:29:59,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2020-10-24 02:29:59,345 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 35 [2020-10-24 02:29:59,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:29:59,349 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2020-10-24 02:29:59,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 02:29:59,349 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2020-10-24 02:29:59,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-24 02:29:59,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:29:59,354 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:29:59,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 02:29:59,354 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:29:59,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:29:59,355 INFO L82 PathProgramCache]: Analyzing trace with hash -7784224, now seen corresponding path program 1 times [2020-10-24 02:29:59,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:29:59,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727830389] [2020-10-24 02:29:59,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:29:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:29:59,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:29:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:29:59,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:29:59,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727830389] [2020-10-24 02:29:59,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:29:59,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-24 02:29:59,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672739506] [2020-10-24 02:29:59,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 02:29:59,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:29:59,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 02:29:59,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-24 02:29:59,705 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 11 states. [2020-10-24 02:30:00,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:30:00,245 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2020-10-24 02:30:00,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 02:30:00,245 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 40 [2020-10-24 02:30:00,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:30:00,246 INFO L225 Difference]: With dead ends: 43 [2020-10-24 02:30:00,246 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 02:30:00,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-24 02:30:00,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 02:30:00,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 02:30:00,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 02:30:00,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 02:30:00,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2020-10-24 02:30:00,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:30:00,250 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 02:30:00,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 02:30:00,250 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 02:30:00,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 02:30:00,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 02:30:00,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 02:30:00,679 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2020-10-24 02:30:00,933 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 25 [2020-10-24 02:30:01,102 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 27 [2020-10-24 02:30:01,271 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2020-10-24 02:30:01,539 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 22 [2020-10-24 02:30:01,825 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 22 [2020-10-24 02:30:01,888 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 4) the Hoare annotation is: true [2020-10-24 02:30:01,888 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-24 02:30:01,888 INFO L277 CegarLoopResult]: At program point reach_errorFINAL(line 4) the Hoare annotation is: true [2020-10-24 02:30:01,888 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) the Hoare annotation is: true [2020-10-24 02:30:01,888 INFO L277 CegarLoopResult]: At program point L4-3(line 4) the Hoare annotation is: true [2020-10-24 02:30:01,888 INFO L277 CegarLoopResult]: At program point L4-4(line 4) the Hoare annotation is: true [2020-10-24 02:30:01,889 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 02:30:01,889 INFO L277 CegarLoopResult]: At program point L4-5(line 4) the Hoare annotation is: true [2020-10-24 02:30:01,889 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-24 02:30:01,889 INFO L277 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-24 02:30:01,889 INFO L277 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-10-24 02:30:01,890 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~__return_72~0 |old(~__return_72~0)|) (= |old(#valid)| |#valid|)) [2020-10-24 02:30:01,890 INFO L277 CegarLoopResult]: At program point L4(line 4) the Hoare annotation is: true [2020-10-24 02:30:01,890 INFO L277 CegarLoopResult]: At program point L4-1(line 4) the Hoare annotation is: true [2020-10-24 02:30:01,890 INFO L277 CegarLoopResult]: At program point L4-2(line 4) the Hoare annotation is: true [2020-10-24 02:30:01,890 INFO L277 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-10-24 02:30:01,891 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-24 02:30:01,891 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 02:30:01,891 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-24 02:30:01,891 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-24 02:30:01,891 INFO L274 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 6 8) no Hoare annotation was computed. [2020-10-24 02:30:01,891 INFO L274 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-10-24 02:30:01,891 INFO L274 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-10-24 02:30:01,892 INFO L274 CegarLoopResult]: For program point L7-3(lines 6 8) no Hoare annotation was computed. [2020-10-24 02:30:01,892 INFO L274 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2020-10-24 02:30:01,892 INFO L270 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2020-10-24 02:30:01,892 INFO L270 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2020-10-24 02:30:01,892 INFO L270 CegarLoopResult]: At program point L58(line 58) the Hoare annotation is: (and (= |old(~__return_72~0)| ~__return_72~0) (not (= main_~__VERIFIER_assert__cond~0 0))) [2020-10-24 02:30:01,892 INFO L270 CegarLoopResult]: At program point L25(lines 25 68) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2020-10-24 02:30:01,893 INFO L270 CegarLoopResult]: At program point mainEXIT(lines 13 70) the Hoare annotation is: (or (= |old(~__return_72~0)| ~__return_72~0) (not (= main_~__VERIFIER_assert__cond~0 0))) [2020-10-24 02:30:01,893 INFO L270 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2020-10-24 02:30:01,893 INFO L270 CegarLoopResult]: At program point L19(lines 19 69) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2020-10-24 02:30:01,893 INFO L270 CegarLoopResult]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 (= |old(~__return_72~0)| ~__return_72~0)) (.cse1 (not (= main_~__tmp_1~0 0))) (.cse2 (<= 0 main_~main__y~0)) (.cse3 (<= main_~main__y~0 0))) (or (let ((.cse5 (+ main_~main__j~0 main_~main__x~0)) (.cse4 (+ main_~main__y~0 main_~main__i~0))) (and .cse0 .cse1 .cse2 .cse3 (<= .cse4 .cse5) (<= .cse5 .cse4))) (and .cse0 .cse1 .cse2 .cse3 (<= main_~main__i~0 main_~main__x~0) (<= main_~main__x~0 main_~main__i~0)))) [2020-10-24 02:30:01,893 INFO L270 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2020-10-24 02:30:01,894 INFO L270 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2020-10-24 02:30:01,894 INFO L270 CegarLoopResult]: At program point L48(line 48) the Hoare annotation is: (let ((.cse0 (= |old(~__return_72~0)| ~__return_72~0)) (.cse1 (<= 0 main_~main__y~0)) (.cse2 (<= main_~main__y~0 0))) (or (and .cse0 .cse1 .cse2 (<= main_~main__i~0 main_~main__x~0) (<= main_~main__x~0 main_~main__i~0)) (let ((.cse4 (+ main_~main__j~0 main_~main__x~0)) (.cse3 (+ main_~main__y~0 main_~main__i~0))) (and .cse0 .cse1 .cse2 (<= .cse3 .cse4) (<= .cse4 .cse3))))) [2020-10-24 02:30:01,894 INFO L270 CegarLoopResult]: At program point L17-2(line 17) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2020-10-24 02:30:01,894 INFO L270 CegarLoopResult]: At program point mainFINAL(lines 13 70) the Hoare annotation is: (or (= |old(~__return_72~0)| ~__return_72~0) (not (= main_~__VERIFIER_assert__cond~0 0))) [2020-10-24 02:30:01,894 INFO L270 CegarLoopResult]: At program point L44(lines 44 66) the Hoare annotation is: (let ((.cse1 (<= main_~main__y~0 0)) (.cse7 (+ main_~main__j~0 main_~main__x~0)) (.cse5 (< 0 (+ main_~main__y~0 1))) (.cse8 (+ main_~main__y~0 main_~main__i~0))) (let ((.cse0 (= |old(~__return_72~0)| ~__return_72~0)) (.cse3 (or .cse5 (<= main_~main__j~0 .cse8))) (.cse2 (<= .cse8 .cse7)) (.cse4 (or (<= .cse8 main_~main__j~0) .cse1)) (.cse6 (<= .cse7 .cse8))) (or (and .cse0 (or .cse1 .cse2) .cse3 .cse4 (<= main_~main__i~0 main_~main__x~0) (or .cse5 .cse6) (<= main_~main__x~0 main_~main__i~0)) (and .cse0 .cse3 .cse2 .cse4 .cse6)))) [2020-10-24 02:30:01,895 INFO L270 CegarLoopResult]: At program point L40(lines 30 68) the Hoare annotation is: (let ((.cse1 (+ main_~main__j~0 main_~main__x~0)) (.cse0 (+ main_~main__y~0 main_~main__i~0))) (and (= |old(~__return_72~0)| ~__return_72~0) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-10-24 02:30:01,895 INFO L270 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: (let ((.cse1 (+ main_~main__y~0 main_~main__i~0)) (.cse0 (+ main_~main__j~0 main_~main__x~0 1))) (and (= |old(~__return_72~0)| ~__return_72~0) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-10-24 02:30:01,895 INFO L270 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (let ((.cse1 (+ main_~main__j~0 main_~main__x~0)) (.cse0 (+ main_~main__y~0 main_~main__i~0))) (and (= |old(~__return_72~0)| ~__return_72~0) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-10-24 02:30:01,895 INFO L270 CegarLoopResult]: At program point L65(line 65) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2020-10-24 02:30:01,895 INFO L270 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (and (= |old(~__return_72~0)| ~__return_72~0) (<= main_~main__i~0 main_~main__x~0) (<= main_~main__x~0 main_~main__i~0)) [2020-10-24 02:30:01,896 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 13 70) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2020-10-24 02:30:01,896 INFO L270 CegarLoopResult]: At program point L59(line 59) the Hoare annotation is: (not (= main_~__VERIFIER_assert__cond~0 0)) [2020-10-24 02:30:01,896 INFO L270 CegarLoopResult]: At program point L53(line 53) the Hoare annotation is: false [2020-10-24 02:30:01,896 INFO L270 CegarLoopResult]: At program point L53-1(line 53) the Hoare annotation is: false [2020-10-24 02:30:01,896 INFO L270 CegarLoopResult]: At program point L51(lines 51 60) the Hoare annotation is: (let ((.cse0 (= |old(~__return_72~0)| ~__return_72~0)) (.cse1 (not (= main_~__tmp_1~0 0))) (.cse2 (<= 0 main_~main__y~0)) (.cse3 (<= main_~main__y~0 0)) (.cse4 (not (= main_~__VERIFIER_assert__cond~0 0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= main_~main__i~0 main_~main__x~0) (<= main_~main__x~0 main_~main__i~0)) (let ((.cse6 (+ main_~main__j~0 main_~main__x~0)) (.cse5 (+ main_~main__y~0 main_~main__i~0))) (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= .cse5 .cse6) (<= .cse6 .cse5))))) [2020-10-24 02:30:01,897 INFO L270 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2020-10-24 02:30:01,897 INFO L270 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2020-10-24 02:30:01,897 INFO L270 CegarLoopResult]: At program point L49(line 49) the Hoare annotation is: (let ((.cse0 (= |old(~__return_72~0)| ~__return_72~0)) (.cse1 (not (= main_~__tmp_1~0 0))) (.cse2 (<= 0 main_~main__y~0)) (.cse3 (<= main_~main__y~0 0))) (or (let ((.cse5 (+ main_~main__j~0 main_~main__x~0)) (.cse4 (+ main_~main__y~0 main_~main__i~0))) (and .cse0 .cse1 .cse2 .cse3 (<= .cse4 .cse5) (<= .cse5 .cse4))) (and .cse0 .cse1 .cse2 .cse3 (<= main_~main__i~0 main_~main__x~0) (<= main_~main__x~0 main_~main__i~0)))) [2020-10-24 02:30:01,897 INFO L270 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2020-10-24 02:30:01,897 INFO L270 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: (= |old(~__return_72~0)| ~__return_72~0) [2020-10-24 02:30:01,898 INFO L270 CegarLoopResult]: At program point L47(line 47) the Hoare annotation is: (let ((.cse0 (= |old(~__return_72~0)| ~__return_72~0)) (.cse1 (<= 0 main_~main__y~0)) (.cse2 (<= main_~main__y~0 0))) (or (and .cse0 .cse1 .cse2 (<= main_~main__i~0 main_~main__x~0) (<= main_~main__x~0 main_~main__i~0)) (let ((.cse4 (+ main_~main__j~0 main_~main__x~0)) (.cse3 (+ main_~main__y~0 main_~main__i~0))) (and .cse0 .cse1 .cse2 (<= .cse3 .cse4) (<= .cse4 .cse3))))) [2020-10-24 02:30:01,898 INFO L270 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: (let ((.cse1 (+ main_~main__y~0 main_~main__i~0)) (.cse0 (+ main_~main__j~0 main_~main__x~0 1))) (and (= |old(~__return_72~0)| ~__return_72~0) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-10-24 02:30:01,898 INFO L270 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: (let ((.cse1 (+ main_~main__j~0 main_~main__x~0)) (.cse0 (+ main_~main__y~0 main_~main__i~0))) (and (= |old(~__return_72~0)| ~__return_72~0) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-10-24 02:30:01,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:30:01 BoogieIcfgContainer [2020-10-24 02:30:01,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 02:30:01,924 INFO L168 Benchmark]: Toolchain (without parser) took 4877.81 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 126.0 MB in the beginning and 71.0 MB in the end (delta: 55.0 MB). Peak memory consumption was 103.5 MB. Max. memory is 8.0 GB. [2020-10-24 02:30:01,925 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 126.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 02:30:01,926 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.84 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 115.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-24 02:30:01,930 INFO L168 Benchmark]: Boogie Preprocessor took 34.68 ms. Allocated memory is still 151.0 MB. Free memory was 115.9 MB in the beginning and 114.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-24 02:30:01,932 INFO L168 Benchmark]: RCFGBuilder took 419.92 ms. Allocated memory is still 151.0 MB. Free memory was 114.4 MB in the beginning and 98.8 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-10-24 02:30:01,933 INFO L168 Benchmark]: TraceAbstraction took 4165.28 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 98.2 MB in the beginning and 71.0 MB in the end (delta: 27.2 MB). Peak memory consumption was 75.2 MB. Max. memory is 8.0 GB. [2020-10-24 02:30:01,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 126.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 245.84 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 115.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.68 ms. Allocated memory is still 151.0 MB. Free memory was 115.9 MB in the beginning and 114.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 419.92 ms. Allocated memory is still 151.0 MB. Free memory was 114.4 MB in the beginning and 98.8 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4165.28 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 98.2 MB in the beginning and 71.0 MB in the end (delta: 27.2 MB). Peak memory consumption was 75.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 30]: Loop Invariant Derived loop invariant: (\old(__return_72) == __return_72 && main__y + main__i <= main__j + main__x) && main__j + main__x <= main__y + main__i - ProcedureContractResult [Line: 4]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: \old(__return_72) == __return_72 || !(__VERIFIER_assert__cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 72 SDtfs, 151 SDslu, 209 SDs, 0 SdLazy, 343 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 52 LocationsWithAnnotation, 56 PreInvPairs, 78 NumberOfFragments, 562 HoareAnnotationTreeSize, 56 FomulaSimplifications, 1002 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 52 FomulaSimplificationsInter, 1171 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 13374 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 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...