/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/bitvector/jain_2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:50:55,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:50:55,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:50:55,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 21:50:55,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:50:55,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:50:55,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:50:55,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:50:55,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:50:55,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:50:55,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:50:55,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:50:55,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:50:55,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:50:55,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:50:55,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:50:55,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 21:50:55,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:50:55,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:50:55,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:50:55,419 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 21:50:55,443 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:50:55,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:50:55,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:50:55,445 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:50:55,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:50:55,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:50:55,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:50:55,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:50:55,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:50:55,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:50:55,446 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:50:55,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:50:55,447 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:50:55,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:50:55,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:50:55,448 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:50:55,448 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:50:55,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:50:55,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:50:55,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:50:55,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:50:55,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:50:55,449 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 [2020-08-22 21:50:55,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:50:55,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:50:55,760 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:50:55,761 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:50:55,761 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:50:55,762 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/jain_2-1.c [2020-08-22 21:50:55,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a3a67579/af320796a385416b8d13af902dccd621/FLAGcff25e1c6 [2020-08-22 21:50:56,249 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:50:56,251 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_2-1.c [2020-08-22 21:50:56,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a3a67579/af320796a385416b8d13af902dccd621/FLAGcff25e1c6 [2020-08-22 21:50:56,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a3a67579/af320796a385416b8d13af902dccd621 [2020-08-22 21:50:56,660 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:50:56,661 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:50:56,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:50:56,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:50:56,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:50:56,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:50:56" (1/1) ... [2020-08-22 21:50:56,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29daa691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:56, skipping insertion in model container [2020-08-22 21:50:56,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:50:56" (1/1) ... [2020-08-22 21:50:56,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:50:56,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:50:56,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:50:56,867 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:50:56,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:50:56,893 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:50:56,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:56 WrapperNode [2020-08-22 21:50:56,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:50:56,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:50:56,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:50:56,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:50:56,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:56" (1/1) ... [2020-08-22 21:50:56,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:56" (1/1) ... [2020-08-22 21:50:56,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:56" (1/1) ... [2020-08-22 21:50:56,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:56" (1/1) ... [2020-08-22 21:50:56,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:56" (1/1) ... [2020-08-22 21:50:57,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:56" (1/1) ... [2020-08-22 21:50:57,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:56" (1/1) ... [2020-08-22 21:50:57,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:50:57,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:50:57,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:50:57,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:50:57,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:56" (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 [2020-08-22 21:50:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:50:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:50:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 21:50:57,061 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:50:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:50:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-08-22 21:50:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 21:50:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:50:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:50:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:50:57,225 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:50:57,226 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 21:50:57,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:50:57 BoogieIcfgContainer [2020-08-22 21:50:57,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:50:57,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:50:57,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:50:57,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:50:57,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:50:56" (1/3) ... [2020-08-22 21:50:57,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad3477b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:50:57, skipping insertion in model container [2020-08-22 21:50:57,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:56" (2/3) ... [2020-08-22 21:50:57,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad3477b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:50:57, skipping insertion in model container [2020-08-22 21:50:57,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:50:57" (3/3) ... [2020-08-22 21:50:57,250 INFO L109 eAbstractionObserver]: Analyzing ICFG jain_2-1.c [2020-08-22 21:50:57,259 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:50:57,267 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:50:57,281 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:50:57,303 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:50:57,303 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:50:57,304 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:50:57,304 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:50:57,304 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:50:57,304 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:50:57,304 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:50:57,304 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:50:57,319 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-08-22 21:50:57,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-22 21:50:57,329 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:50:57,330 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:50:57,330 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:50:57,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:50:57,337 INFO L82 PathProgramCache]: Analyzing trace with hash -926636985, now seen corresponding path program 1 times [2020-08-22 21:50:57,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:50:57,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [29461529] [2020-08-22 21:50:57,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:50:57,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:57,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:50:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:57,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:50:57,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [29461529] [2020-08-22 21:50:57,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:50:57,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 21:50:57,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843360305] [2020-08-22 21:50:57,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 21:50:57,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:50:57,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 21:50:57,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 21:50:57,706 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 8 states. [2020-08-22 21:50:58,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:50:58,029 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2020-08-22 21:50:58,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 21:50:58,032 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-08-22 21:50:58,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:50:58,041 INFO L225 Difference]: With dead ends: 37 [2020-08-22 21:50:58,042 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 21:50:58,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-08-22 21:50:58,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 21:50:58,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 21:50:58,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 21:50:58,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 21:50:58,070 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-08-22 21:50:58,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:50:58,070 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 21:50:58,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 21:50:58,071 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 21:50:58,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 21:50:58,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:50:58,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 21:50:58,225 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 21:50:58,225 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-08-22 21:50:58,225 INFO L264 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: false [2020-08-22 21:50:58,225 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 21:50:58,226 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 21:50:58,226 INFO L264 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: false [2020-08-22 21:50:58,226 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 10 26) the Hoare annotation is: true [2020-08-22 21:50:58,226 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 10 26) the Hoare annotation is: false [2020-08-22 21:50:58,227 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (<= (+ main_~x~0 2) (+ main_~y~0 (* 2 (div (+ main_~x~0 (* main_~y~0 (- 1)) 2) 2)))) [2020-08-22 21:50:58,227 INFO L264 CegarLoopResult]: At program point L23-1(lines 17 24) the Hoare annotation is: (<= (+ main_~x~0 2) (+ main_~y~0 (* 2 (div (+ main_~x~0 (* main_~y~0 (- 1)) 2) 2)))) [2020-08-22 21:50:58,227 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (<= (+ main_~x~0 2) (+ main_~y~0 (* 2 (div (+ main_~x~0 (* main_~y~0 (- 1)) 2) 2)))) [2020-08-22 21:50:58,228 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (<= (+ main_~x~0 2) (+ main_~y~0 (* 2 (div (+ main_~x~0 (* main_~y~0 (- 1)) 2) 2)))) [2020-08-22 21:50:58,228 INFO L264 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: (<= (+ main_~x~0 2) (+ main_~y~0 (* 2 (div (+ main_~x~0 (* main_~y~0 (- 1)) 2) 2)))) [2020-08-22 21:50:58,228 INFO L264 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (<= (+ main_~x~0 2) (+ main_~y~0 (* 2 (div (+ main_~x~0 (* main_~y~0 (- 1)) 2) 2)))) [2020-08-22 21:50:58,228 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (<= 1 main_~x~0) (<= main_~x~0 1)) [2020-08-22 21:50:58,229 INFO L264 CegarLoopResult]: At program point L17-2(lines 17 24) the Hoare annotation is: false [2020-08-22 21:50:58,229 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-08-22 21:50:58,229 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 10 26) the Hoare annotation is: false [2020-08-22 21:50:58,229 INFO L271 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-08-22 21:50:58,229 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2020-08-22 21:50:58,230 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 4 9) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 21:50:58,230 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 21:50:58,230 INFO L264 CegarLoopResult]: At program point L5(lines 5 7) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 21:50:58,231 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 21:50:58,231 INFO L264 CegarLoopResult]: At program point L5-2(lines 4 9) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 21:50:58,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:50:58 BoogieIcfgContainer [2020-08-22 21:50:58,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:50:58,254 INFO L168 Benchmark]: Toolchain (without parser) took 1591.79 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 115.4 MB in the end (delta: -13.6 MB). Peak memory consumption was 49.8 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:58,256 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 21:50:58,257 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.56 ms. Allocated memory is still 137.9 MB. Free memory was 101.6 MB in the beginning and 92.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:58,258 INFO L168 Benchmark]: Boogie Preprocessor took 109.06 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 92.3 MB in the beginning and 180.3 MB in the end (delta: -88.0 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:58,259 INFO L168 Benchmark]: RCFGBuilder took 230.78 ms. Allocated memory is still 201.3 MB. Free memory was 180.3 MB in the beginning and 168.9 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:58,260 INFO L168 Benchmark]: TraceAbstraction took 1016.02 ms. Allocated memory is still 201.3 MB. Free memory was 168.2 MB in the beginning and 115.4 MB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:58,264 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 231.56 ms. Allocated memory is still 137.9 MB. Free memory was 101.6 MB in the beginning and 92.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.06 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 92.3 MB in the beginning and 180.3 MB in the end (delta: -88.0 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 230.78 ms. Allocated memory is still 201.3 MB. Free memory was 180.3 MB in the beginning and 168.9 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1016.02 ms. Allocated memory is still 201.3 MB. Free memory was 168.2 MB in the beginning and 115.4 MB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 17]: Loop Invariant Derived loop invariant: x + 2 <= y + 2 * ((x + y * -1 + 2) / 2) - ProcedureContractResult [Line: 10]: Procedure Contract for main Derived contract for procedure main: 0 - ProcedureContractResult [Line: 4]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 SDtfs, 11 SDslu, 54 SDs, 0 SdLazy, 35 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 25 LocationsWithAnnotation, 31 PreInvPairs, 41 NumberOfFragments, 146 HoareAnnotationTreeSize, 31 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 25 FomulaSimplificationsInter, 51 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 2016 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...