/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/Addition01-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:56:05,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:56:05,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:56:05,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:56:05,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:56:05,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:56:05,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:56:05,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:56:05,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:56:05,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:56:05,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:56:05,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:56:05,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:56:05,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:56:05,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:56:05,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:56:05,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:56:05,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:56:05,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:56:05,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:56:05,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:56:05,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:56:05,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:56:05,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:56:05,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 12:56:05,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:56:05,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:56:05,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:56:05,373 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 12:56:05,401 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:56:05,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:56:05,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:56:05,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:56:05,405 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:56:05,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:56:05,405 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:56:05,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:56:05,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:56:05,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:56:05,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:56:05,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:56:05,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:56:05,408 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:56:05,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:56:05,408 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:56:05,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:56:05,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:56:05,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:56:05,409 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:56:05,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:56:05,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:56:05,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:56:05,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:56:05,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:56:05,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:56:05,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:56:05,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:56:05,410 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:56:05,411 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 12:56:05,716 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:56:05,730 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:56:05,733 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:56:05,735 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:56:05,735 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:56:05,736 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Addition01-2.c [2020-07-21 12:56:05,808 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da3f84411/063966999b894bc4879ca4d94163b83e/FLAG49972754e [2020-07-21 12:56:06,296 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:56:06,297 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/Addition01-2.c [2020-07-21 12:56:06,302 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da3f84411/063966999b894bc4879ca4d94163b83e/FLAG49972754e [2020-07-21 12:56:06,672 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da3f84411/063966999b894bc4879ca4d94163b83e [2020-07-21 12:56:06,684 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:56:06,687 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:56:06,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:56:06,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:56:06,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:56:06,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:56:06" (1/1) ... [2020-07-21 12:56:06,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da494c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:06, skipping insertion in model container [2020-07-21 12:56:06,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:56:06" (1/1) ... [2020-07-21 12:56:06,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:56:06,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:56:06,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:56:06,907 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:56:06,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:56:06,943 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:56:06,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:06 WrapperNode [2020-07-21 12:56:06,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:56:06,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:56:06,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:56:06,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:56:06,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:06" (1/1) ... [2020-07-21 12:56:06,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:06" (1/1) ... [2020-07-21 12:56:06,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:06" (1/1) ... [2020-07-21 12:56:06,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:06" (1/1) ... [2020-07-21 12:56:06,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:06" (1/1) ... [2020-07-21 12:56:06,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:06" (1/1) ... [2020-07-21 12:56:06,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:06" (1/1) ... [2020-07-21 12:56:06,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:56:06,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:56:06,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:56:06,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:56:06,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:06" (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 [2020-07-21 12:56:07,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:56:07,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:56:07,113 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-07-21 12:56:07,113 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:56:07,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:56:07,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:56:07,114 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-07-21 12:56:07,114 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:56:07,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:56:07,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:56:07,329 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:56:07,330 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 12:56:07,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:56:07 BoogieIcfgContainer [2020-07-21 12:56:07,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:56:07,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:56:07,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:56:07,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:56:07,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:56:06" (1/3) ... [2020-07-21 12:56:07,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d165540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:56:07, skipping insertion in model container [2020-07-21 12:56:07,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:56:06" (2/3) ... [2020-07-21 12:56:07,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d165540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:56:07, skipping insertion in model container [2020-07-21 12:56:07,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:56:07" (3/3) ... [2020-07-21 12:56:07,344 INFO L109 eAbstractionObserver]: Analyzing ICFG Addition01-2.c [2020-07-21 12:56:07,356 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:56:07,365 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:56:07,385 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:56:07,441 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:56:07,442 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:56:07,442 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:56:07,442 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:56:07,442 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:56:07,443 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:56:07,443 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:56:07,443 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:56:07,466 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-07-21 12:56:07,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-21 12:56:07,484 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:56:07,486 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:56:07,486 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:56:07,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:56:07,501 INFO L82 PathProgramCache]: Analyzing trace with hash -854965079, now seen corresponding path program 1 times [2020-07-21 12:56:07,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:56:07,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1235389119] [2020-07-21 12:56:07,512 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:56:07,596 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:56:07,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:56:07,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 12:56:07,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:56:07,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:56:07,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:56:07,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1235389119] [2020-07-21 12:56:07,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:56:07,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-21 12:56:07,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308755940] [2020-07-21 12:56:07,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 12:56:07,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:56:07,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 12:56:07,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:56:07,779 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 7 states. [2020-07-21 12:56:07,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:56:07,923 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2020-07-21 12:56:07,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:56:07,925 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-07-21 12:56:07,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:56:07,936 INFO L225 Difference]: With dead ends: 40 [2020-07-21 12:56:07,937 INFO L226 Difference]: Without dead ends: 24 [2020-07-21 12:56:07,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:56:07,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-07-21 12:56:07,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-07-21 12:56:07,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-07-21 12:56:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2020-07-21 12:56:07,992 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 15 [2020-07-21 12:56:07,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:56:07,993 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2020-07-21 12:56:07,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 12:56:07,994 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2020-07-21 12:56:07,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-21 12:56:07,996 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:56:07,996 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:56:08,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:56:08,211 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:56:08,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:56:08,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1632999070, now seen corresponding path program 1 times [2020-07-21 12:56:08,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:56:08,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431038398] [2020-07-21 12:56:08,214 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:56:08,244 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 12:56:08,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:56:08,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 12:56:08,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:56:08,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:56:08,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:56:08,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [431038398] [2020-07-21 12:56:08,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:56:08,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:56:08,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927658715] [2020-07-21 12:56:08,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:56:08,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:56:08,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:56:08,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:56:08,328 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 6 states. [2020-07-21 12:56:08,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:56:08,441 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2020-07-21 12:56:08,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:56:08,443 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-07-21 12:56:08,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:56:08,444 INFO L225 Difference]: With dead ends: 31 [2020-07-21 12:56:08,445 INFO L226 Difference]: Without dead ends: 21 [2020-07-21 12:56:08,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:56:08,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-07-21 12:56:08,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-07-21 12:56:08,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-21 12:56:08,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-07-21 12:56:08,460 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 17 [2020-07-21 12:56:08,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:56:08,462 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-07-21 12:56:08,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:56:08,463 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-07-21 12:56:08,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-21 12:56:08,466 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:56:08,466 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:56:08,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:56:08,682 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:56:08,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:56:08,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1746800232, now seen corresponding path program 1 times [2020-07-21 12:56:08,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:56:08,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2045650537] [2020-07-21 12:56:08,685 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:56:08,722 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:56:08,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:56:08,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 27 conjunts are in the unsatisfiable core [2020-07-21 12:56:08,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:56:08,898 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 12:56:08,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 12:56:09,261 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:56:09,268 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:56:09,354 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 12:56:09,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2045650537] [2020-07-21 12:56:09,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 12:56:09,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2020-07-21 12:56:09,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96890800] [2020-07-21 12:56:09,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-21 12:56:09,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:56:09,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-21 12:56:09,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-07-21 12:56:09,359 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 17 states. [2020-07-21 12:56:09,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:56:09,620 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2020-07-21 12:56:09,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 12:56:09,621 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 22 [2020-07-21 12:56:09,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:56:09,621 INFO L225 Difference]: With dead ends: 26 [2020-07-21 12:56:09,621 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 12:56:09,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2020-07-21 12:56:09,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 12:56:09,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 12:56:09,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 12:56:09,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 12:56:09,624 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-07-21 12:56:09,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:56:09,624 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 12:56:09,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-21 12:56:09,624 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 12:56:09,624 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 12:56:09,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:56:09,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 12:56:09,944 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-21 12:56:09,945 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:56:09,945 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:56:09,945 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 12:56:09,945 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 12:56:09,945 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:56:09,946 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2020-07-21 12:56:09,946 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 26 45) the Hoare annotation is: true [2020-07-21 12:56:09,946 INFO L268 CegarLoopResult]: For program point L28(lines 28 32) no Hoare annotation was computed. [2020-07-21 12:56:09,947 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 26 45) no Hoare annotation was computed. [2020-07-21 12:56:09,947 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 26 45) no Hoare annotation was computed. [2020-07-21 12:56:09,947 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 12:56:09,947 INFO L268 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-07-21 12:56:09,948 INFO L264 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: (<= 0 main_~n~0) [2020-07-21 12:56:09,948 INFO L268 CegarLoopResult]: For program point L39-1(line 39) no Hoare annotation was computed. [2020-07-21 12:56:09,949 INFO L268 CegarLoopResult]: For program point L34(lines 34 38) no Hoare annotation was computed. [2020-07-21 12:56:09,949 INFO L268 CegarLoopResult]: For program point additionFINAL(lines 13 23) no Hoare annotation was computed. [2020-07-21 12:56:09,949 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (and (<= (+ |addition_#in~n| 1) 0) (<= |addition_#in~n| addition_~n) (= |addition_#in~m| addition_~m) (not (= 0 addition_~n))) [2020-07-21 12:56:09,949 INFO L268 CegarLoopResult]: For program point L20(lines 20 22) no Hoare annotation was computed. [2020-07-21 12:56:09,950 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-07-21 12:56:09,950 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (= |addition_#in~n| addition_~n) (= |addition_#in~m| addition_~m) (< 0 addition_~n)) [2020-07-21 12:56:09,950 INFO L268 CegarLoopResult]: For program point L17(lines 17 19) no Hoare annotation was computed. [2020-07-21 12:56:09,950 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-07-21 12:56:09,950 INFO L271 CegarLoopResult]: At program point additionENTRY(lines 13 23) the Hoare annotation is: true [2020-07-21 12:56:09,951 INFO L268 CegarLoopResult]: For program point L14(lines 14 16) no Hoare annotation was computed. [2020-07-21 12:56:09,951 INFO L268 CegarLoopResult]: For program point additionEXIT(lines 13 23) no Hoare annotation was computed. [2020-07-21 12:56:09,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:56:09 BoogieIcfgContainer [2020-07-21 12:56:09,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:56:09,966 INFO L168 Benchmark]: Toolchain (without parser) took 3277.07 ms. Allocated memory was 145.8 MB in the beginning and 235.9 MB in the end (delta: 90.2 MB). Free memory was 103.7 MB in the beginning and 111.9 MB in the end (delta: -8.2 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2020-07-21 12:56:09,969 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 12:56:09,971 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.48 ms. Allocated memory is still 145.8 MB. Free memory was 103.3 MB in the beginning and 93.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-21 12:56:09,974 INFO L168 Benchmark]: Boogie Preprocessor took 31.07 ms. Allocated memory is still 145.8 MB. Free memory was 93.9 MB in the beginning and 92.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-07-21 12:56:09,981 INFO L168 Benchmark]: RCFGBuilder took 355.05 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 92.3 MB in the beginning and 168.7 MB in the end (delta: -76.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-21 12:56:09,983 INFO L168 Benchmark]: TraceAbstraction took 2626.00 ms. Allocated memory was 201.9 MB in the beginning and 235.9 MB in the end (delta: 34.1 MB). Free memory was 168.1 MB in the beginning and 111.9 MB in the end (delta: 56.2 MB). Peak memory consumption was 90.2 MB. Max. memory is 7.1 GB. [2020-07-21 12:56:09,996 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 145.8 MB. Free memory was 122.0 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 258.48 ms. Allocated memory is still 145.8 MB. Free memory was 103.3 MB in the beginning and 93.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.07 ms. Allocated memory is still 145.8 MB. Free memory was 93.9 MB in the beginning and 92.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 355.05 ms. Allocated memory was 145.8 MB in the beginning and 201.9 MB in the end (delta: 56.1 MB). Free memory was 92.3 MB in the beginning and 168.7 MB in the end (delta: -76.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2626.00 ms. Allocated memory was 201.9 MB in the beginning and 235.9 MB in the end (delta: 34.1 MB). Free memory was 168.1 MB in the beginning and 111.9 MB in the end (delta: 56.2 MB). Peak memory consumption was 90.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 54 SDslu, 188 SDs, 0 SdLazy, 221 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 46 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 14 PreInvPairs, 14 NumberOfFragments, 34 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 54 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 5846 SizeOfPredicates, 16 NumberOfNonLiveVariables, 140 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/8 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...