/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/loops/array-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 02:24:15,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 02:24:15,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 02:24:15,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 02:24:15,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 02:24:15,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 02:24:15,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 02:24:15,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 02:24:15,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 02:24:15,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 02:24:15,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 02:24:15,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 02:24:15,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 02:24:15,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 02:24:15,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 02:24:15,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 02:24:15,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 02:24:15,400 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 02:24:15,424 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 02:24:15,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 02:24:15,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 02:24:15,430 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 02:24:15,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 02:24:15,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 02:24:15,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 02:24:15,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 02:24:15,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 02:24:15,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 02:24:15,431 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 02:24:15,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 02:24:15,432 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 02:24:15,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 02:24:15,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 02:24:15,433 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 02:24:15,433 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 02:24:15,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 02:24:15,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 02:24:15,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 02:24:15,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 02:24:15,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 02:24:15,434 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 02:24:15,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 02:24:15,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 02:24:15,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 02:24:15,869 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 02:24:15,870 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 02:24:15,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/array-1.c [2020-10-24 02:24:15,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79bfd067e/3f189ea3ad234365aaf9c96f74702376/FLAGe9ca1f421 [2020-10-24 02:24:16,473 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 02:24:16,474 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/array-1.c [2020-10-24 02:24:16,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79bfd067e/3f189ea3ad234365aaf9c96f74702376/FLAGe9ca1f421 [2020-10-24 02:24:16,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79bfd067e/3f189ea3ad234365aaf9c96f74702376 [2020-10-24 02:24:16,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 02:24:16,857 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 02:24:16,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 02:24:16,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 02:24:16,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 02:24:16,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:24:16" (1/1) ... [2020-10-24 02:24:16,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a54e9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:16, skipping insertion in model container [2020-10-24 02:24:16,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:24:16" (1/1) ... [2020-10-24 02:24:16,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 02:24:16,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 02:24:17,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:24:17,049 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 02:24:17,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:24:17,086 INFO L208 MainTranslator]: Completed translation [2020-10-24 02:24:17,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:17 WrapperNode [2020-10-24 02:24:17,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 02:24:17,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 02:24:17,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 02:24:17,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 02:24:17,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:17" (1/1) ... [2020-10-24 02:24:17,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:17" (1/1) ... [2020-10-24 02:24:17,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:17" (1/1) ... [2020-10-24 02:24:17,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:17" (1/1) ... [2020-10-24 02:24:17,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:17" (1/1) ... [2020-10-24 02:24:17,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:17" (1/1) ... [2020-10-24 02:24:17,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:17" (1/1) ... [2020-10-24 02:24:17,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 02:24:17,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 02:24:17,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 02:24:17,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 02:24:17,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:17" (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 02:24:17,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 02:24:17,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 02:24:17,256 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 02:24:17,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-24 02:24:17,257 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 02:24:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 02:24:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 02:24:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 02:24:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 02:24:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-24 02:24:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 02:24:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 02:24:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 02:24:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 02:24:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 02:24:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 02:24:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 02:24:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 02:24:17,726 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 02:24:17,727 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-24 02:24:17,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:24:17 BoogieIcfgContainer [2020-10-24 02:24:17,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 02:24:17,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 02:24:17,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 02:24:17,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 02:24:17,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:24:16" (1/3) ... [2020-10-24 02:24:17,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5801926d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:24:17, skipping insertion in model container [2020-10-24 02:24:17,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:24:17" (2/3) ... [2020-10-24 02:24:17,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5801926d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:24:17, skipping insertion in model container [2020-10-24 02:24:17,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:24:17" (3/3) ... [2020-10-24 02:24:17,747 INFO L111 eAbstractionObserver]: Analyzing ICFG array-1.c [2020-10-24 02:24:17,759 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 02:24:17,765 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 02:24:17,779 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 02:24:17,815 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 02:24:17,815 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 02:24:17,816 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 02:24:17,816 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 02:24:17,816 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 02:24:17,816 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 02:24:17,816 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 02:24:17,817 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 02:24:17,839 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-10-24 02:24:17,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-24 02:24:17,855 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:24:17,856 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] [2020-10-24 02:24:17,857 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:24:17,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:24:17,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1278543435, now seen corresponding path program 1 times [2020-10-24 02:24:17,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:24:17,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139984432] [2020-10-24 02:24:17,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:24:18,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:18,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:24:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:18,402 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 02:24:18,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139984432] [2020-10-24 02:24:18,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:24:18,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-24 02:24:18,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539087622] [2020-10-24 02:24:18,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 02:24:18,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:24:18,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 02:24:18,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 02:24:18,434 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 5 states. [2020-10-24 02:24:18,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:24:18,648 INFO L93 Difference]: Finished difference Result 85 states and 93 transitions. [2020-10-24 02:24:18,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 02:24:18,650 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-24 02:24:18,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:24:18,659 INFO L225 Difference]: With dead ends: 85 [2020-10-24 02:24:18,659 INFO L226 Difference]: Without dead ends: 55 [2020-10-24 02:24:18,662 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-24 02:24:18,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-24 02:24:18,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 43. [2020-10-24 02:24:18,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-24 02:24:18,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-10-24 02:24:18,717 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 28 [2020-10-24 02:24:18,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:24:18,718 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-10-24 02:24:18,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 02:24:18,718 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-10-24 02:24:18,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-24 02:24:18,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:24:18,722 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] [2020-10-24 02:24:18,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 02:24:18,722 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:24:18,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:24:18,724 INFO L82 PathProgramCache]: Analyzing trace with hash -117529283, now seen corresponding path program 1 times [2020-10-24 02:24:18,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:24:18,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546635027] [2020-10-24 02:24:18,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:24:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:19,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:24:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:19,280 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 02:24:19,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546635027] [2020-10-24 02:24:19,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:24:19,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-24 02:24:19,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941944354] [2020-10-24 02:24:19,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-24 02:24:19,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:24:19,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-24 02:24:19,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-24 02:24:19,284 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 12 states. [2020-10-24 02:24:19,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:24:19,699 INFO L93 Difference]: Finished difference Result 68 states and 70 transitions. [2020-10-24 02:24:19,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-24 02:24:19,700 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 38 [2020-10-24 02:24:19,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:24:19,702 INFO L225 Difference]: With dead ends: 68 [2020-10-24 02:24:19,702 INFO L226 Difference]: Without dead ends: 61 [2020-10-24 02:24:19,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2020-10-24 02:24:19,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-24 02:24:19,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 53. [2020-10-24 02:24:19,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-24 02:24:19,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2020-10-24 02:24:19,723 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 38 [2020-10-24 02:24:19,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:24:19,724 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2020-10-24 02:24:19,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-24 02:24:19,724 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2020-10-24 02:24:19,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-24 02:24:19,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:24:19,728 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, 1] [2020-10-24 02:24:19,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 02:24:19,728 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:24:19,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:24:19,729 INFO L82 PathProgramCache]: Analyzing trace with hash 148052226, now seen corresponding path program 1 times [2020-10-24 02:24:19,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:24:19,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550190007] [2020-10-24 02:24:19,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:24:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:20,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:24:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:20,114 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 02:24:20,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550190007] [2020-10-24 02:24:20,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:24:20,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 02:24:20,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300048920] [2020-10-24 02:24:20,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 02:24:20,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:24:20,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 02:24:20,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-24 02:24:20,117 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 10 states. [2020-10-24 02:24:20,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:24:20,584 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2020-10-24 02:24:20,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 02:24:20,585 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2020-10-24 02:24:20,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:24:20,587 INFO L225 Difference]: With dead ends: 70 [2020-10-24 02:24:20,587 INFO L226 Difference]: Without dead ends: 63 [2020-10-24 02:24:20,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-10-24 02:24:20,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-24 02:24:20,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 57. [2020-10-24 02:24:20,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-24 02:24:20,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2020-10-24 02:24:20,600 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 41 [2020-10-24 02:24:20,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:24:20,601 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2020-10-24 02:24:20,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 02:24:20,601 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2020-10-24 02:24:20,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-24 02:24:20,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:24:20,603 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 02:24:20,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 02:24:20,604 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:24:20,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:24:20,604 INFO L82 PathProgramCache]: Analyzing trace with hash -452215377, now seen corresponding path program 2 times [2020-10-24 02:24:20,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:24:20,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896285660] [2020-10-24 02:24:20,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:24:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:20,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:24:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:24:20,796 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:24:20,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [896285660] [2020-10-24 02:24:20,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:24:20,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-24 02:24:20,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617722724] [2020-10-24 02:24:20,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 02:24:20,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:24:20,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 02:24:20,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 02:24:20,799 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand 7 states. [2020-10-24 02:24:20,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:24:20,969 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2020-10-24 02:24:20,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-24 02:24:20,971 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2020-10-24 02:24:20,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:24:20,971 INFO L225 Difference]: With dead ends: 57 [2020-10-24 02:24:20,971 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 02:24:20,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-24 02:24:20,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 02:24:20,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 02:24:20,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 02:24:20,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 02:24:20,973 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2020-10-24 02:24:20,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:24:20,974 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 02:24:20,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 02:24:20,976 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 02:24:20,976 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 02:24:20,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 02:24:20,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 02:24:21,694 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-10-24 02:24:21,694 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-24 02:24:21,694 INFO L277 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-10-24 02:24:21,695 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-10-24 02:24:21,695 INFO L277 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-10-24 02:24:21,695 INFO L277 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-10-24 02:24:21,695 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 02:24:21,695 INFO L277 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-10-24 02:24:21,695 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-24 02:24:21,696 INFO L277 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2020-10-24 02:24:21,696 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)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-24 02:24:21,696 INFO L277 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-10-24 02:24:21,696 INFO L277 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-10-24 02:24:21,696 INFO L277 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-10-24 02:24:21,697 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-24 02:24:21,697 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 02:24:21,697 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-24 02:24:21,697 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-24 02:24:21,697 INFO L270 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (and (= main_~j~0 0) (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1)) [2020-10-24 02:24:21,697 INFO L270 CegarLoopResult]: At program point mainEXIT(lines 13 31) the Hoare annotation is: (= main_~SIZE~0 1) [2020-10-24 02:24:21,698 INFO L270 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: (and (<= |main_#t~mem11| (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (= main_~j~0 0) (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1)) [2020-10-24 02:24:21,698 INFO L270 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|))) (and (<= |main_#t~mem11| .cse0) (= main_~j~0 0) (<= main_~menor~0 .cse0) (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1))) [2020-10-24 02:24:21,698 INFO L270 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (and (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1)) [2020-10-24 02:24:21,698 INFO L270 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (and (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1)) [2020-10-24 02:24:21,699 INFO L270 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (and (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1)) [2020-10-24 02:24:21,699 INFO L270 CegarLoopResult]: At program point L21-3(lines 21 26) the Hoare annotation is: (and (= main_~j~0 0) (<= main_~menor~0 (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1)) [2020-10-24 02:24:21,699 INFO L270 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (= |old(#length)| |#length|) (= main_~SIZE~0 1) (= |old(#valid)| |#valid|)) [2020-10-24 02:24:21,699 INFO L270 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: (and (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1)) [2020-10-24 02:24:21,699 INFO L270 CegarLoopResult]: At program point L21-4(line 21) the Hoare annotation is: (and (= |main_#t~post8| 0) (= main_~j~0 0) (<= main_~menor~0 (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1)) [2020-10-24 02:24:21,700 INFO L270 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: (and (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1)) [2020-10-24 02:24:21,700 INFO L270 CegarLoopResult]: At program point L21-5(line 21) the Hoare annotation is: (and (<= 1 main_~j~0) (= |main_#t~post8| 0) (<= main_~menor~0 (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1) (< (div main_~j~0 4294967296) (+ (div main_~SIZE~0 4294967296) 1))) [2020-10-24 02:24:21,700 INFO L270 CegarLoopResult]: At program point L21-6(lines 21 26) the Hoare annotation is: (let ((.cse0 (= |main_~#array~0.offset| 0)) (.cse1 (= main_~SIZE~0 1))) (or (and (= main_~j~0 0) .cse0 .cse1) (and (<= 1 main_~j~0) (<= main_~menor~0 (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) .cse0 .cse1 (< (div main_~j~0 4294967296) (+ (div main_~SIZE~0 4294967296) 1))))) [2020-10-24 02:24:21,700 INFO L270 CegarLoopResult]: At program point L17-2(line 17) the Hoare annotation is: (= main_~SIZE~0 1) [2020-10-24 02:24:21,700 INFO L270 CegarLoopResult]: At program point L21-7(lines 21 26) the Hoare annotation is: (and (<= main_~menor~0 (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1)) [2020-10-24 02:24:21,701 INFO L270 CegarLoopResult]: At program point L17-3(line 17) the Hoare annotation is: (= main_~SIZE~0 1) [2020-10-24 02:24:21,701 INFO L270 CegarLoopResult]: At program point mainFINAL(lines 13 31) the Hoare annotation is: (= main_~SIZE~0 1) [2020-10-24 02:24:21,701 INFO L270 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (= main_~SIZE~0 1) [2020-10-24 02:24:21,701 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 13 31) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-24 02:24:21,701 INFO L270 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (and (<= main_~menor~0 |main_#t~mem12|) (<= main_~menor~0 (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1)) [2020-10-24 02:24:21,701 INFO L270 CegarLoopResult]: At program point L28-1(line 28) the Hoare annotation is: (= main_~SIZE~0 1) [2020-10-24 02:24:21,702 INFO L270 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (and (= main_~j~0 0) (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1)) [2020-10-24 02:24:21,702 INFO L270 CegarLoopResult]: At program point L24-1(lines 24 25) the Hoare annotation is: (and (= main_~j~0 0) (<= |main_#t~mem10| (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1)) [2020-10-24 02:24:21,702 INFO L270 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (and (= main_~j~0 0) (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1)) [2020-10-24 02:24:21,702 INFO L270 CegarLoopResult]: At program point L24-2(line 24) the Hoare annotation is: (and (= main_~j~0 0) (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1)) [2020-10-24 02:24:21,702 INFO L270 CegarLoopResult]: At program point L22-1(line 22) the Hoare annotation is: (and (= main_~j~0 0) (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1)) [2020-10-24 02:24:21,703 INFO L270 CegarLoopResult]: At program point L22-2(line 22) the Hoare annotation is: (and (= main_~j~0 0) (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1)) [2020-10-24 02:24:21,703 INFO L270 CegarLoopResult]: At program point L24-4(line 24) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|))) (and (= main_~j~0 0) (<= |main_#t~mem10| .cse0) (= |main_~#array~0.offset| 0) (<= (+ main_~menor~0 1) .cse0) (= main_~SIZE~0 1))) [2020-10-24 02:24:21,703 INFO L270 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (= |old(#length)| |#length|) (= main_~SIZE~0 1) (= |old(#valid)| |#valid|)) [2020-10-24 02:24:21,703 INFO L270 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (and (= |old(#length)| |#length|) (= main_~SIZE~0 1) (= |old(#valid)| |#valid|)) [2020-10-24 02:24:21,703 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2020-10-24 02:24:21,704 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 5 10) the Hoare annotation is: true [2020-10-24 02:24:21,704 INFO L270 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-24 02:24:21,704 INFO L270 CegarLoopResult]: At program point L6(lines 6 8) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-10-24 02:24:21,704 INFO L270 CegarLoopResult]: At program point L7-1(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-24 02:24:21,704 INFO L277 CegarLoopResult]: At program point L6-2(lines 5 10) the Hoare annotation is: true [2020-10-24 02:24:21,716 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 02:24:21,722 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 02:24:21,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:24:21 BoogieIcfgContainer [2020-10-24 02:24:21,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 02:24:21,728 INFO L168 Benchmark]: Toolchain (without parser) took 4874.61 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 127.5 MB in the beginning and 121.4 MB in the end (delta: 6.1 MB). Peak memory consumption was 102.8 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:21,729 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 02:24:21,730 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.78 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 117.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:21,732 INFO L168 Benchmark]: Boogie Preprocessor took 63.12 ms. Allocated memory is still 151.0 MB. Free memory was 117.6 MB in the beginning and 116.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:21,735 INFO L168 Benchmark]: RCFGBuilder took 579.55 ms. Allocated memory is still 151.0 MB. Free memory was 116.0 MB in the beginning and 100.2 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:21,736 INFO L168 Benchmark]: TraceAbstraction took 3990.03 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 99.8 MB in the beginning and 121.4 MB in the end (delta: -21.6 MB). Peak memory consumption was 75.5 MB. Max. memory is 8.0 GB. [2020-10-24 02:24:21,742 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 228.78 ms. Allocated memory is still 151.0 MB. Free memory was 126.8 MB in the beginning and 117.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 63.12 ms. Allocated memory is still 151.0 MB. Free memory was 117.6 MB in the beginning and 116.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 579.55 ms. Allocated memory is still 151.0 MB. Free memory was 116.0 MB in the beginning and 100.2 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3990.03 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 99.8 MB in the beginning and 121.4 MB in the end (delta: -21.6 MB). Peak memory consumption was 75.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 21]: Loop Invariant [2020-10-24 02:24:21,757 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-24 02:24:21,758 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((j == 0 && array == 0) && SIZE == 1) || ((((1 <= j && menor <= unknown-#memory_int-unknown[array][array]) && array == 0) && SIZE == 1) && j / 4294967296 < SIZE / 4294967296 + 1) - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: SIZE == 1 - ProcedureContractResult [Line: 5]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 146 SDtfs, 236 SDslu, 469 SDs, 0 SdLazy, 465 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 12 SyntacticMatches, 5 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=3, 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, 26 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 55 LocationsWithAnnotation, 85 PreInvPairs, 118 NumberOfFragments, 433 HoareAnnotationTreeSize, 85 FomulaSimplifications, 359 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 55 FomulaSimplificationsInter, 342 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 151 ConstructedInterpolants, 0 QuantifiedInterpolants, 26092 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 11/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...