/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.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-invgen/nested9.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 23:14:42,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 23:14:42,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 23:14:42,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 23:14:42,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 23:14:42,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 23:14:42,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 23:14:42,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 23:14:42,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 23:14:42,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 23:14:42,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 23:14:42,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 23:14:42,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 23:14:42,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 23:14:42,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 23:14:42,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 23:14:42,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 23:14:42,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 23:14:42,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 23:14:42,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 23:14:42,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 23:14:42,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 23:14:42,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 23:14:42,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 23:14:42,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 23:14:42,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 23:14:42,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 23:14:42,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 23:14:42,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 23:14:42,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 23:14:42,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 23:14:42,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 23:14:42,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 23:14:42,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 23:14:42,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 23:14:42,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 23:14:42,347 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 23:14:42,363 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 23:14:42,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 23:14:42,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 23:14:42,366 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 23:14:42,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 23:14:42,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 23:14:42,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 23:14:42,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 23:14:42,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 23:14:42,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 23:14:42,369 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 23:14:42,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 23:14:42,369 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 23:14:42,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 23:14:42,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 23:14:42,370 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 23:14:42,370 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 23:14:42,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 23:14:42,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 23:14:42,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 23:14:42,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 23:14:42,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 23:14:42,372 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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 [2020-09-04 23:14:42,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 23:14:42,818 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 23:14:42,823 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 23:14:42,827 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 23:14:42,828 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 23:14:42,829 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/nested9.i [2020-09-04 23:14:42,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bf97015e/3127a736539a4d70b98d79849e69fdbe/FLAGe3927e383 [2020-09-04 23:14:43,490 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 23:14:43,491 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/nested9.i [2020-09-04 23:14:43,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bf97015e/3127a736539a4d70b98d79849e69fdbe/FLAGe3927e383 [2020-09-04 23:14:43,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0bf97015e/3127a736539a4d70b98d79849e69fdbe [2020-09-04 23:14:43,843 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 23:14:43,845 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 23:14:43,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 23:14:43,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 23:14:43,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 23:14:43,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 11:14:43" (1/1) ... [2020-09-04 23:14:43,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1987833a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:14:43, skipping insertion in model container [2020-09-04 23:14:43,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 11:14:43" (1/1) ... [2020-09-04 23:14:43,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 23:14:43,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 23:14:44,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 23:14:44,108 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 23:14:44,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 23:14:44,145 INFO L208 MainTranslator]: Completed translation [2020-09-04 23:14:44,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:14:44 WrapperNode [2020-09-04 23:14:44,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 23:14:44,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 23:14:44,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 23:14:44,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 23:14:44,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:14:44" (1/1) ... [2020-09-04 23:14:44,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:14:44" (1/1) ... [2020-09-04 23:14:44,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:14:44" (1/1) ... [2020-09-04 23:14:44,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:14:44" (1/1) ... [2020-09-04 23:14:44,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:14:44" (1/1) ... [2020-09-04 23:14:44,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:14:44" (1/1) ... [2020-09-04 23:14:44,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:14:44" (1/1) ... [2020-09-04 23:14:44,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 23:14:44,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 23:14:44,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 23:14:44,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 23:14:44,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:14:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 23:14:44,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 23:14:44,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 23:14:44,351 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-04 23:14:44,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 23:14:44,352 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 23:14:44,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 23:14:44,352 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 23:14:44,352 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-04 23:14:44,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 23:14:44,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 23:14:44,353 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 23:14:44,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 23:14:44,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 23:14:44,645 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 23:14:44,646 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-04 23:14:44,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 11:14:44 BoogieIcfgContainer [2020-09-04 23:14:44,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 23:14:44,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 23:14:44,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 23:14:44,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 23:14:44,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 11:14:43" (1/3) ... [2020-09-04 23:14:44,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f300a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 11:14:44, skipping insertion in model container [2020-09-04 23:14:44,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 11:14:44" (2/3) ... [2020-09-04 23:14:44,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f300a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 11:14:44, skipping insertion in model container [2020-09-04 23:14:44,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 11:14:44" (3/3) ... [2020-09-04 23:14:44,664 INFO L109 eAbstractionObserver]: Analyzing ICFG nested9.i [2020-09-04 23:14:44,677 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 23:14:44,689 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 23:14:44,714 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 23:14:44,754 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 23:14:44,755 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 23:14:44,755 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 23:14:44,755 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 23:14:44,755 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 23:14:44,755 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 23:14:44,756 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 23:14:44,756 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 23:14:44,782 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2020-09-04 23:14:44,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-04 23:14:44,797 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 23:14:44,800 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] [2020-09-04 23:14:44,800 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 23:14:44,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 23:14:44,808 INFO L82 PathProgramCache]: Analyzing trace with hash -980226087, now seen corresponding path program 1 times [2020-09-04 23:14:44,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 23:14:44,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1595472824] [2020-09-04 23:14:44,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 23:14:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 23:14:45,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 23:14:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 23:14:45,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 23:14:45,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1595472824] [2020-09-04 23:14:45,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 23:14:45,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 23:14:45,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475388691] [2020-09-04 23:14:45,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 23:14:45,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 23:14:45,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 23:14:45,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-04 23:14:45,196 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 8 states. [2020-09-04 23:14:45,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 23:14:45,656 INFO L93 Difference]: Finished difference Result 78 states and 95 transitions. [2020-09-04 23:14:45,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 23:14:45,658 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2020-09-04 23:14:45,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 23:14:45,669 INFO L225 Difference]: With dead ends: 78 [2020-09-04 23:14:45,670 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 23:14:45,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-09-04 23:14:45,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 23:14:45,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 23:14:45,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 23:14:45,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 23:14:45,711 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2020-09-04 23:14:45,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 23:14:45,711 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 23:14:45,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 23:14:45,712 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 23:14:45,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 23:14:45,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 23:14:45,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 23:14:46,078 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 23:14:46,078 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~__BLAST_NONDET~0 |old(~__BLAST_NONDET~0)|) [2020-09-04 23:14:46,078 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 23:14:46,078 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 23:14:46,079 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 23:14:46,079 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 23:14:46,079 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 23:14:46,079 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-04 23:14:46,079 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-04 23:14:46,079 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-04 23:14:46,080 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-04 23:14:46,080 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-04 23:14:46,080 INFO L271 CegarLoopResult]: At program point L27(lines 14 29) the Hoare annotation is: true [2020-09-04 23:14:46,080 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 14 29) the Hoare annotation is: true [2020-09-04 23:14:46,080 INFO L264 CegarLoopResult]: At program point L23-2(lines 23 26) the Hoare annotation is: (<= (+ main_~i~0 1) main_~n~0) [2020-09-04 23:14:46,081 INFO L264 CegarLoopResult]: At program point L23-3(line 23) the Hoare annotation is: (<= (+ main_~i~0 1) main_~n~0) [2020-09-04 23:14:46,081 INFO L271 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: true [2020-09-04 23:14:46,081 INFO L271 CegarLoopResult]: At program point L23-4(line 23) the Hoare annotation is: true [2020-09-04 23:14:46,081 INFO L271 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: true [2020-09-04 23:14:46,081 INFO L271 CegarLoopResult]: At program point L23-5(lines 23 26) the Hoare annotation is: true [2020-09-04 23:14:46,082 INFO L271 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-09-04 23:14:46,082 INFO L271 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: true [2020-09-04 23:14:46,082 INFO L271 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: true [2020-09-04 23:14:46,082 INFO L271 CegarLoopResult]: At program point L15-3(line 15) the Hoare annotation is: true [2020-09-04 23:14:46,082 INFO L271 CegarLoopResult]: At program point L15-4(line 15) the Hoare annotation is: true [2020-09-04 23:14:46,083 INFO L264 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (<= (+ main_~i~0 1) main_~n~0) [2020-09-04 23:14:46,083 INFO L264 CegarLoopResult]: At program point L24-3(lines 24 26) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) (+ main_~i~0 (* 2 main_~n~0)))) [2020-09-04 23:14:46,083 INFO L271 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: true [2020-09-04 23:14:46,083 INFO L264 CegarLoopResult]: At program point L24-4(line 24) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) (+ main_~i~0 (* 2 main_~n~0)))) [2020-09-04 23:14:46,083 INFO L271 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: true [2020-09-04 23:14:46,084 INFO L264 CegarLoopResult]: At program point L24-5(line 24) the Hoare annotation is: (<= (+ main_~i~0 1) main_~n~0) [2020-09-04 23:14:46,084 INFO L264 CegarLoopResult]: At program point L24-6(lines 24 26) the Hoare annotation is: (<= (+ main_~i~0 1) main_~n~0) [2020-09-04 23:14:46,084 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-09-04 23:14:46,084 INFO L271 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: true [2020-09-04 23:14:46,084 INFO L271 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: true [2020-09-04 23:14:46,085 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) (+ main_~i~0 (* 2 main_~n~0)))) [2020-09-04 23:14:46,085 INFO L264 CegarLoopResult]: At program point L25-3(line 25) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 (* 2 main_~n~0)))) (and (<= (+ main_~k~0 4) .cse0) (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) .cse0))) [2020-09-04 23:14:46,085 INFO L271 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: true [2020-09-04 23:14:46,085 INFO L264 CegarLoopResult]: At program point L25-4(line 25) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) (+ main_~i~0 (* 2 main_~n~0)))) [2020-09-04 23:14:46,086 INFO L271 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: true [2020-09-04 23:14:46,086 INFO L264 CegarLoopResult]: At program point L25-5(lines 25 26) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) (+ main_~i~0 (* 2 main_~n~0)))) [2020-09-04 23:14:46,086 INFO L271 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-09-04 23:14:46,086 INFO L271 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: true [2020-09-04 23:14:46,086 INFO L271 CegarLoopResult]: At program point L17-2(line 17) the Hoare annotation is: true [2020-09-04 23:14:46,087 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 14 29) the Hoare annotation is: true [2020-09-04 23:14:46,087 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 29) the Hoare annotation is: true [2020-09-04 23:14:46,087 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 (* 2 main_~n~0)))) (and (<= (+ main_~k~0 4) .cse0) (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) .cse0))) [2020-09-04 23:14:46,087 INFO L264 CegarLoopResult]: At program point L26-1(lines 25 26) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 (* 2 main_~n~0)))) (and (<= (+ main_~k~0 4) .cse0) (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) .cse0))) [2020-09-04 23:14:46,088 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-09-04 23:14:46,088 INFO L271 CegarLoopResult]: At program point L22-1(line 22) the Hoare annotation is: true [2020-09-04 23:14:46,088 INFO L271 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-09-04 23:14:46,088 INFO L271 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: true [2020-09-04 23:14:46,088 INFO L271 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: true [2020-09-04 23:14:46,089 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-04 23:14:46,089 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 6 11) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-09-04 23:14:46,089 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 23:14:46,089 INFO L264 CegarLoopResult]: At program point L7(lines 7 9) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-09-04 23:14:46,090 INFO L264 CegarLoopResult]: At program point L7-2(lines 6 11) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-09-04 23:14:46,090 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 23:14:46,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 11:14:46 BoogieIcfgContainer [2020-09-04 23:14:46,114 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 23:14:46,118 INFO L168 Benchmark]: Toolchain (without parser) took 2272.01 ms. Allocated memory was 140.0 MB in the beginning and 235.4 MB in the end (delta: 95.4 MB). Free memory was 103.4 MB in the beginning and 175.1 MB in the end (delta: -71.7 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. [2020-09-04 23:14:46,120 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-04 23:14:46,121 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.96 ms. Allocated memory is still 140.0 MB. Free memory was 103.2 MB in the beginning and 93.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-04 23:14:46,122 INFO L168 Benchmark]: Boogie Preprocessor took 116.02 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 93.5 MB in the beginning and 183.9 MB in the end (delta: -90.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2020-09-04 23:14:46,123 INFO L168 Benchmark]: RCFGBuilder took 390.13 ms. Allocated memory is still 203.9 MB. Free memory was 183.9 MB in the beginning and 166.3 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. [2020-09-04 23:14:46,124 INFO L168 Benchmark]: TraceAbstraction took 1460.42 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 165.7 MB in the beginning and 175.1 MB in the end (delta: -9.4 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. [2020-09-04 23:14:46,128 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 299.96 ms. Allocated memory is still 140.0 MB. Free memory was 103.2 MB in the beginning and 93.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.02 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 93.5 MB in the beginning and 183.9 MB in the end (delta: -90.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 390.13 ms. Allocated memory is still 203.9 MB. Free memory was 183.9 MB in the beginning and 166.3 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1460.42 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 165.7 MB in the beginning and 175.1 MB in the end (delta: -9.4 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: i + 1 <= n - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: i + 1 <= n && j + 3 <= i + 2 * n - ProcedureContractResult [Line: 14]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 73 SDslu, 42 SDs, 0 SdLazy, 231 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 54 LocationsWithAnnotation, 60 PreInvPairs, 82 NumberOfFragments, 240 HoareAnnotationTreeSize, 60 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 54 FomulaSimplificationsInter, 135 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 2409 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...