/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_6-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:50:56,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:50:56,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:50:57,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 21:50:57,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:50:57,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:50:57,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:50:57,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:50:57,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:50:57,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:50:57,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:50:57,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:50:57,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:50:57,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:50:57,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:50:57,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:50:57,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 21:50:57,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:50:57,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:50:57,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:50:57,085 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 21:50:57,102 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:50:57,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:50:57,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:50:57,104 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:50:57,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:50:57,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:50:57,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:50:57,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:50:57,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:50:57,105 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:50:57,106 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:50:57,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:50:57,106 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:50:57,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:50:57,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:50:57,107 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:50:57,107 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:50:57,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:50:57,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:50:57,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:50:57,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:50:57,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:50:57,109 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 21:50:57,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:50:57,390 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:50:57,395 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:50:57,396 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:50:57,397 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:50:57,397 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/jain_6-1.c [2020-08-22 21:50:57,470 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a67e4a17/3fa4eabb009d4ad9a07ba240c72e43af/FLAGa9c33cb8c [2020-08-22 21:50:57,905 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:50:57,906 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_6-1.c [2020-08-22 21:50:57,912 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a67e4a17/3fa4eabb009d4ad9a07ba240c72e43af/FLAGa9c33cb8c [2020-08-22 21:50:58,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a67e4a17/3fa4eabb009d4ad9a07ba240c72e43af [2020-08-22 21:50:58,364 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:50:58,367 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:50:58,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:50:58,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:50:58,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:50:58,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:50:58" (1/1) ... [2020-08-22 21:50:58,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c91024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:58, skipping insertion in model container [2020-08-22 21:50:58,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:50:58" (1/1) ... [2020-08-22 21:50:58,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:50:58,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:50:58,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:50:58,576 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:50:58,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:50:58,602 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:50:58,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:58 WrapperNode [2020-08-22 21:50:58,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:50:58,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:50:58,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:50:58,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:50:58,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:58" (1/1) ... [2020-08-22 21:50:58,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:58" (1/1) ... [2020-08-22 21:50:58,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:58" (1/1) ... [2020-08-22 21:50:58,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:58" (1/1) ... [2020-08-22 21:50:58,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:58" (1/1) ... [2020-08-22 21:50:58,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:58" (1/1) ... [2020-08-22 21:50:58,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:58" (1/1) ... [2020-08-22 21:50:58,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:50:58,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:50:58,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:50:58,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:50:58,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:58" (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 21:50:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:50:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:50:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 21:50:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:50:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:50:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-08-22 21:50:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 21:50:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:50:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:50:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:50:58,927 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:50:58,927 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 21:50:58,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:50:58 BoogieIcfgContainer [2020-08-22 21:50:58,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:50:58,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:50:58,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:50:58,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:50:58,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:50:58" (1/3) ... [2020-08-22 21:50:58,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6df7a33b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:50:58, skipping insertion in model container [2020-08-22 21:50:58,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:58" (2/3) ... [2020-08-22 21:50:58,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6df7a33b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:50:58, skipping insertion in model container [2020-08-22 21:50:58,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:50:58" (3/3) ... [2020-08-22 21:50:58,939 INFO L109 eAbstractionObserver]: Analyzing ICFG jain_6-1.c [2020-08-22 21:50:58,950 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:50:58,958 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:50:58,973 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:50:58,998 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:50:58,998 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:50:58,999 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:50:58,999 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:50:58,999 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:50:58,999 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:50:58,999 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:50:59,000 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:50:59,018 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-08-22 21:50:59,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-22 21:50:59,030 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:50:59,032 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] [2020-08-22 21:50:59,032 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:50:59,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:50:59,041 INFO L82 PathProgramCache]: Analyzing trace with hash 19239437, now seen corresponding path program 1 times [2020-08-22 21:50:59,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:50:59,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [676487168] [2020-08-22 21:50:59,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:50:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:59,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:50:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:59,440 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 21:50:59,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [676487168] [2020-08-22 21:50:59,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:50:59,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 21:50:59,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867082147] [2020-08-22 21:50:59,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 21:50:59,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:50:59,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 21:50:59,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-08-22 21:50:59,467 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 9 states. [2020-08-22 21:50:59,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:50:59,664 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2020-08-22 21:50:59,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 21:50:59,667 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-08-22 21:50:59,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:50:59,677 INFO L225 Difference]: With dead ends: 43 [2020-08-22 21:50:59,677 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 21:50:59,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-08-22 21:50:59,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 21:50:59,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 21:50:59,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 21:50:59,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 21:50:59,713 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-08-22 21:50:59,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:50:59,714 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 21:50:59,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 21:50:59,714 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 21:50:59,715 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 21:50:59,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:50:59,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 21:50:59,896 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 21:50:59,896 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-08-22 21:50:59,896 INFO L264 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: false [2020-08-22 21:50:59,896 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 21:50:59,897 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 21:50:59,897 INFO L264 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: false [2020-08-22 21:50:59,897 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 10 27) the Hoare annotation is: false [2020-08-22 21:50:59,897 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (<= (+ (* 4 main_~x~0) (* 2 main_~y~0) main_~z~0) (* 8 (div (+ (* main_~x~0 4) (* main_~y~0 2) main_~z~0) 8))) [2020-08-22 21:50:59,898 INFO L264 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: (<= (+ (* 4 main_~x~0) (* 2 main_~y~0) main_~z~0) (* 8 (div (+ (* main_~x~0 4) (* main_~y~0 2) main_~z~0) 8))) [2020-08-22 21:50:59,898 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (<= 0 main_~x~0) (<= main_~x~0 0)) [2020-08-22 21:50:59,899 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 10 27) the Hoare annotation is: false [2020-08-22 21:50:59,899 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 10 27) the Hoare annotation is: true [2020-08-22 21:50:59,899 INFO L264 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (<= (+ (* 4 main_~x~0) (* 2 main_~y~0) main_~z~0) (* 8 (div (+ (* main_~x~0 4) (* main_~y~0 2) main_~z~0) 8))) [2020-08-22 21:50:59,899 INFO L264 CegarLoopResult]: At program point L24-1(lines 18 25) the Hoare annotation is: (<= (+ (* 4 main_~x~0) (* 2 main_~y~0) main_~z~0) (* 8 (div (+ (* main_~x~0 4) (* main_~y~0 2) main_~z~0) 8))) [2020-08-22 21:50:59,900 INFO L264 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (<= (+ (* 4 main_~x~0) (* 2 main_~y~0) main_~z~0) (* 8 (div (+ (* main_~x~0 4) (* main_~y~0 2) main_~z~0) 8))) [2020-08-22 21:50:59,900 INFO L264 CegarLoopResult]: At program point L22-1(line 22) the Hoare annotation is: (<= (+ (* 4 main_~x~0) (* 2 main_~y~0) main_~z~0) (* 8 (div (+ (* main_~x~0 4) (* main_~y~0 2) main_~z~0) 8))) [2020-08-22 21:50:59,900 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (<= (+ (* 4 main_~x~0) (* 2 main_~y~0) main_~z~0) (* 8 (div (+ (* main_~x~0 4) (* main_~y~0 2) main_~z~0) 8))) [2020-08-22 21:50:59,901 INFO L264 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: (<= (+ (* 4 main_~x~0) (* 2 main_~y~0) main_~z~0) (* 8 (div (+ (* main_~x~0 4) (* main_~y~0 2) main_~z~0) 8))) [2020-08-22 21:50:59,901 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (let ((.cse0 (* 2 main_~x~0))) (and (<= 0 main_~x~0) (<= main_~x~0 0) (<= main_~y~0 .cse0) (<= .cse0 main_~y~0))) [2020-08-22 21:50:59,901 INFO L264 CegarLoopResult]: At program point L18-2(lines 18 25) the Hoare annotation is: false [2020-08-22 21:50:59,901 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-08-22 21:50:59,902 INFO L271 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-08-22 21:50:59,902 INFO L271 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-08-22 21:50:59,902 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2020-08-22 21:50:59,902 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 21:50:59,903 INFO L264 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 21:50:59,903 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 21:50:59,903 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 21:50:59,903 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 21:50:59,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:50:59 BoogieIcfgContainer [2020-08-22 21:50:59,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:50:59,928 INFO L168 Benchmark]: Toolchain (without parser) took 1559.70 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 103.1 MB in the beginning and 104.9 MB in the end (delta: -1.7 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:59,929 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-08-22 21:50:59,930 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.73 ms. Allocated memory is still 140.0 MB. Free memory was 102.7 MB in the beginning and 93.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:59,931 INFO L168 Benchmark]: Boogie Preprocessor took 100.96 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 93.3 MB in the beginning and 181.7 MB in the end (delta: -88.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:59,932 INFO L168 Benchmark]: RCFGBuilder took 227.13 ms. Allocated memory is still 202.9 MB. Free memory was 181.7 MB in the beginning and 169.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:59,933 INFO L168 Benchmark]: TraceAbstraction took 992.44 ms. Allocated memory is still 202.9 MB. Free memory was 169.8 MB in the beginning and 104.9 MB in the end (delta: 64.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:59,938 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 233.73 ms. Allocated memory is still 140.0 MB. Free memory was 102.7 MB in the beginning and 93.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.96 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 93.3 MB in the beginning and 181.7 MB in the end (delta: -88.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 227.13 ms. Allocated memory is still 202.9 MB. Free memory was 181.7 MB in the beginning and 169.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 992.44 ms. Allocated memory is still 202.9 MB. Free memory was 169.8 MB in the beginning and 104.9 MB in the end (delta: 64.9 MB). Peak memory consumption was 64.9 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: 18]: Loop Invariant Derived loop invariant: 4 * x + 2 * y + z <= 8 * ((x * 4 + y * 2 + z) / 8) - 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, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 15 SDslu, 74 SDs, 0 SdLazy, 55 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 29 LocationsWithAnnotation, 35 PreInvPairs, 47 NumberOfFragments, 236 HoareAnnotationTreeSize, 35 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 29 FomulaSimplificationsInter, 87 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 4920 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...