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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-regression/test24-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:01:37,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:01:37,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:01:37,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:01:37,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:01:37,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:01:37,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:01:37,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:01:37,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:01:37,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:01:37,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:01:37,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:01:37,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:01:37,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:01:37,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:01:37,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:01:37,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:01:37,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:01:37,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:01:37,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:01:37,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:01:37,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:01:37,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:01:37,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:01:37,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:01:37,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:01:37,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:01:37,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:01:37,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:01:37,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:01:37,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:01:37,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:01:37,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:01:37,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:01:37,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:01:37,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:01:37,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:01:37,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:01:37,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:01:37,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:01:37,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:01:37,783 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 [2019-10-15 01:01:37,797 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:01:37,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:01:37,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:01:37,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:01:37,799 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:01:37,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:01:37,799 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:01:37,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:01:37,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:01:37,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:01:37,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:01:37,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:01:37,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:01:37,800 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:01:37,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:01:37,801 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:01:37,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:01:37,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:01:37,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:01:37,802 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:01:37,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:01:37,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:01:37,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:01:37,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:01:37,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:01:37,803 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:01:37,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:01:37,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:01:37,803 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:01:38,087 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:01:38,101 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:01:38,104 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:01:38,106 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:01:38,107 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:01:38,107 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test24-1.c [2019-10-15 01:01:38,182 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcdeea217/88009b8981004356b80cea02f43378ab/FLAG87975d1d6 [2019-10-15 01:01:38,652 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:01:38,652 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test24-1.c [2019-10-15 01:01:38,661 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcdeea217/88009b8981004356b80cea02f43378ab/FLAG87975d1d6 [2019-10-15 01:01:39,015 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcdeea217/88009b8981004356b80cea02f43378ab [2019-10-15 01:01:39,026 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:01:39,028 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:01:39,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:01:39,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:01:39,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:01:39,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:01:39" (1/1) ... [2019-10-15 01:01:39,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13bde31b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:39, skipping insertion in model container [2019-10-15 01:01:39,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:01:39" (1/1) ... [2019-10-15 01:01:39,047 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:01:39,068 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:01:39,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:01:39,283 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:01:39,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:01:39,336 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:01:39,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:39 WrapperNode [2019-10-15 01:01:39,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:01:39,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:01:39,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:01:39,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:01:39,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:39" (1/1) ... [2019-10-15 01:01:39,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:39" (1/1) ... [2019-10-15 01:01:39,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:39" (1/1) ... [2019-10-15 01:01:39,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:39" (1/1) ... [2019-10-15 01:01:39,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:39" (1/1) ... [2019-10-15 01:01:39,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:39" (1/1) ... [2019-10-15 01:01:39,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:39" (1/1) ... [2019-10-15 01:01:39,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:01:39,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:01:39,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:01:39,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:01:39,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:39" (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 [2019-10-15 01:01:39,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:01:39,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:01:39,511 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-10-15 01:01:39,511 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:01:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:01:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:01:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-15 01:01:39,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:01:39,512 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:01:39,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:01:39,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:01:39,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:01:39,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:01:39,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:01:39,771 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:01:39,771 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:01:39,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:01:39 BoogieIcfgContainer [2019-10-15 01:01:39,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:01:39,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:01:39,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:01:39,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:01:39,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:01:39" (1/3) ... [2019-10-15 01:01:39,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9445d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:01:39, skipping insertion in model container [2019-10-15 01:01:39,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:39" (2/3) ... [2019-10-15 01:01:39,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9445d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:01:39, skipping insertion in model container [2019-10-15 01:01:39,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:01:39" (3/3) ... [2019-10-15 01:01:39,792 INFO L109 eAbstractionObserver]: Analyzing ICFG test24-1.c [2019-10-15 01:01:39,802 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:01:39,810 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:01:39,821 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:01:39,845 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:01:39,846 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:01:39,846 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:01:39,846 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:01:39,846 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:01:39,846 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:01:39,846 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:01:39,846 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:01:39,862 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-10-15 01:01:39,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-15 01:01:39,868 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:39,869 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:01:39,871 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:39,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:39,876 INFO L82 PathProgramCache]: Analyzing trace with hash 149844724, now seen corresponding path program 1 times [2019-10-15 01:01:39,884 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:39,884 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773550945] [2019-10-15 01:01:39,884 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:39,885 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:39,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:40,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:01:40,032 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773550945] [2019-10-15 01:01:40,033 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:01:40,033 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:01:40,034 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497863748] [2019-10-15 01:01:40,039 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:01:40,041 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:40,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:01:40,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:01:40,059 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2019-10-15 01:01:40,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:40,082 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2019-10-15 01:01:40,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:01:40,084 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-10-15 01:01:40,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:40,096 INFO L225 Difference]: With dead ends: 35 [2019-10-15 01:01:40,096 INFO L226 Difference]: Without dead ends: 17 [2019-10-15 01:01:40,102 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:01:40,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-10-15 01:01:40,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-10-15 01:01:40,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-15 01:01:40,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2019-10-15 01:01:40,138 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2019-10-15 01:01:40,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:40,139 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2019-10-15 01:01:40,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:01:40,140 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-10-15 01:01:40,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-15 01:01:40,140 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:40,141 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:01:40,141 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:40,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:40,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1249419983, now seen corresponding path program 1 times [2019-10-15 01:01:40,142 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:40,142 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258208459] [2019-10-15 01:01:40,143 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:40,143 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:40,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:40,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:01:40,292 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258208459] [2019-10-15 01:01:40,292 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:01:40,293 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:01:40,293 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589059240] [2019-10-15 01:01:40,295 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:01:40,295 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:40,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:01:40,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:01:40,296 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 4 states. [2019-10-15 01:01:40,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:40,375 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2019-10-15 01:01:40,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:01:40,376 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-10-15 01:01:40,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:40,377 INFO L225 Difference]: With dead ends: 27 [2019-10-15 01:01:40,377 INFO L226 Difference]: Without dead ends: 19 [2019-10-15 01:01:40,378 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:01:40,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-15 01:01:40,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-10-15 01:01:40,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-15 01:01:40,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-10-15 01:01:40,384 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 16 [2019-10-15 01:01:40,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:40,384 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-10-15 01:01:40,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:01:40,384 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-10-15 01:01:40,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-15 01:01:40,385 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:40,385 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:01:40,386 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:40,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:40,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1840889772, now seen corresponding path program 1 times [2019-10-15 01:01:40,386 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:40,387 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286633222] [2019-10-15 01:01:40,387 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:40,387 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:40,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:40,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:01:40,711 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286633222] [2019-10-15 01:01:40,711 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098947404] [2019-10-15 01:01:40,711 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:01:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:40,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-15 01:01:40,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:01:40,883 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2019-10-15 01:01:40,884 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:01:40,903 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:01:40,905 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 01:01:40,905 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:53, output treesize:49 [2019-10-15 01:01:41,065 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-15 01:01:41,068 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:01:41,069 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 20 [2019-10-15 01:01:41,070 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 01:01:41,080 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 01:01:41,082 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-15 01:01:41,082 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:56, output treesize:28 [2019-10-15 01:01:41,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:01:41,126 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:01:41,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:01:41,250 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [217065895] [2019-10-15 01:01:41,257 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 19 [2019-10-15 01:01:41,301 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:01:41,301 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:01:41,377 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:01:41,379 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 24 variables. [2019-10-15 01:01:41,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:41,383 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:01:41,419 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-15 01:01:41,420 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:01:41,421 INFO L553 sIntCurrentIteration]: We unified 17 AI predicates to 17 [2019-10-15 01:01:41,422 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:01:41,422 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:01:41,423 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10, 5, 5] total 16 [2019-10-15 01:01:41,423 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594083067] [2019-10-15 01:01:41,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:01:41,424 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:41,425 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:01:41,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:01:41,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:01:41,426 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 2 states. [2019-10-15 01:01:41,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:41,428 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-10-15 01:01:41,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:01:41,428 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-15 01:01:41,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:41,429 INFO L225 Difference]: With dead ends: 19 [2019-10-15 01:01:41,429 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:01:41,429 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:01:41,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:01:41,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:01:41,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:01:41,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:01:41,431 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-10-15 01:01:41,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:41,431 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:01:41,431 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:01:41,431 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:01:41,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:01:41,635 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:01:41,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:01:41,668 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:01:41,668 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:01:41,668 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:01:41,669 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:01:41,669 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:01:41,669 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:01:41,669 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:01:41,669 INFO L443 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2019-10-15 01:01:41,669 INFO L443 ceAbstractionStarter]: For program point L29-1(lines 29 31) no Hoare annotation was computed. [2019-10-15 01:01:41,670 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 14 38) no Hoare annotation was computed. [2019-10-15 01:01:41,670 INFO L443 ceAbstractionStarter]: For program point L21(lines 21 32) no Hoare annotation was computed. [2019-10-15 01:01:41,670 INFO L443 ceAbstractionStarter]: For program point L21-2(lines 21 32) no Hoare annotation was computed. [2019-10-15 01:01:41,670 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 14 38) no Hoare annotation was computed. [2019-10-15 01:01:41,670 INFO L439 ceAbstractionStarter]: At program point L30(lines 15 38) the Hoare annotation is: false [2019-10-15 01:01:41,671 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 14 38) the Hoare annotation is: true [2019-10-15 01:01:41,671 INFO L443 ceAbstractionStarter]: For program point L26-1(lines 26 28) no Hoare annotation was computed. [2019-10-15 01:01:41,671 INFO L439 ceAbstractionStarter]: At program point L26-3(lines 26 28) the Hoare annotation is: false [2019-10-15 01:01:41,671 INFO L439 ceAbstractionStarter]: At program point L26-4(lines 26 28) the Hoare annotation is: false [2019-10-15 01:01:41,674 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2019-10-15 01:01:41,674 INFO L446 ceAbstractionStarter]: At program point checkENTRY(lines 9 12) the Hoare annotation is: true [2019-10-15 01:01:41,674 INFO L443 ceAbstractionStarter]: For program point checkFINAL(lines 9 12) no Hoare annotation was computed. [2019-10-15 01:01:41,675 INFO L443 ceAbstractionStarter]: For program point checkEXIT(lines 9 12) no Hoare annotation was computed. [2019-10-15 01:01:41,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:01:41 BoogieIcfgContainer [2019-10-15 01:01:41,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:01:41,692 INFO L168 Benchmark]: Toolchain (without parser) took 2663.24 ms. Allocated memory was 145.8 MB in the beginning and 222.3 MB in the end (delta: 76.5 MB). Free memory was 103.8 MB in the beginning and 88.5 MB in the end (delta: 15.4 MB). Peak memory consumption was 91.9 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:41,694 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 01:01:41,695 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.11 ms. Allocated memory was 145.8 MB in the beginning and 174.1 MB in the end (delta: 28.3 MB). Free memory was 103.6 MB in the beginning and 145.2 MB in the end (delta: -41.6 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:41,703 INFO L168 Benchmark]: Boogie Preprocessor took 115.60 ms. Allocated memory was 174.1 MB in the beginning and 222.3 MB in the end (delta: 48.2 MB). Free memory was 145.2 MB in the beginning and 208.3 MB in the end (delta: -63.0 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:41,705 INFO L168 Benchmark]: RCFGBuilder took 312.53 ms. Allocated memory is still 222.3 MB. Free memory was 208.3 MB in the beginning and 193.2 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:41,706 INFO L168 Benchmark]: TraceAbstraction took 1915.28 ms. Allocated memory is still 222.3 MB. Free memory was 192.3 MB in the beginning and 88.5 MB in the end (delta: 103.8 MB). Peak memory consumption was 103.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:41,717 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 309.11 ms. Allocated memory was 145.8 MB in the beginning and 174.1 MB in the end (delta: 28.3 MB). Free memory was 103.6 MB in the beginning and 145.2 MB in the end (delta: -41.6 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.60 ms. Allocated memory was 174.1 MB in the beginning and 222.3 MB in the end (delta: 48.2 MB). Free memory was 145.2 MB in the beginning and 208.3 MB in the end (delta: -63.0 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 312.53 ms. Allocated memory is still 222.3 MB. Free memory was 208.3 MB in the beginning and 193.2 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1915.28 ms. Allocated memory is still 222.3 MB. Free memory was 192.3 MB in the beginning and 88.5 MB in the end (delta: 103.8 MB). Peak memory consumption was 103.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 36]: 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: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 1 SDslu, 23 SDs, 0 SdLazy, 12 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 10 PreInvPairs, 10 NumberOfFragments, 8 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 80 ConstructedInterpolants, 4 QuantifiedInterpolants, 7605 SizeOfPredicates, 12 NumberOfNonLiveVariables, 84 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 126, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.8970588235294118, AVG_VARS_REMOVED_DURING_WEAKENING: 1.5294117647058822, AVG_WEAKENED_CONJUNCTS: 0.35294117647058826, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...