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/test25-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:01:40,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:01:40,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:01:40,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:01:40,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:01:40,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:01:40,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:01:40,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:01:40,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:01:40,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:01:40,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:01:40,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:01:40,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:01:40,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:01:40,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:01:40,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:01:40,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:01:40,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:01:40,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:01:40,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:01:40,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:01:40,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:01:40,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:01:40,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:01:40,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:01:40,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:01:40,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:01:40,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:01:40,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:01:40,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:01:40,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:01:40,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:01:40,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:01:40,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:01:40,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:01:40,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:01:40,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:01:40,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:01:40,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:01:40,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:01:40,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:01:40,123 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 01:01:40,152 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:01:40,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:01:40,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:01:40,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:01:40,156 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:01:40,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:01:40,157 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:01:40,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:01:40,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:01:40,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:01:40,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:01:40,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:01:40,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:01:40,160 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:01:40,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:01:40,161 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:01:40,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:01:40,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:01:40,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:01:40,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:01:40,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:01:40,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:01:40,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:01:40,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:01:40,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:01:40,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:01:40,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:01:40,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:01:40,163 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 01:01:40,452 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:01:40,469 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:01:40,472 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:01:40,474 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:01:40,475 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:01:40,475 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test25-2.c [2019-10-15 01:01:40,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57ce0bf17/9448cf9448f44fa49d50bee68e18dd84/FLAG4516ac42d [2019-10-15 01:01:41,042 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:01:41,043 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test25-2.c [2019-10-15 01:01:41,049 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57ce0bf17/9448cf9448f44fa49d50bee68e18dd84/FLAG4516ac42d [2019-10-15 01:01:41,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57ce0bf17/9448cf9448f44fa49d50bee68e18dd84 [2019-10-15 01:01:41,444 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:01:41,446 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:01:41,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:01:41,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:01:41,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:01:41,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:01:41" (1/1) ... [2019-10-15 01:01:41,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@358a6207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:41, skipping insertion in model container [2019-10-15 01:01:41,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:01:41" (1/1) ... [2019-10-15 01:01:41,463 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:01:41,480 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:01:41,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:01:41,679 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:01:41,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:01:41,802 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:01:41,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:41 WrapperNode [2019-10-15 01:01:41,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:01:41,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:01:41,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:01:41,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:01:41,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:41" (1/1) ... [2019-10-15 01:01:41,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:41" (1/1) ... [2019-10-15 01:01:41,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:41" (1/1) ... [2019-10-15 01:01:41,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:41" (1/1) ... [2019-10-15 01:01:41,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:41" (1/1) ... [2019-10-15 01:01:41,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:41" (1/1) ... [2019-10-15 01:01:41,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:41" (1/1) ... [2019-10-15 01:01:41,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:01:41,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:01:41,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:01:41,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:01:41,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:41" (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 01:01:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:01:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:01:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-10-15 01:01:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:01:41,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:01:41,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:01:41,895 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-15 01:01:41,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:01:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:01:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:01:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:01:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:01:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:01:41,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:01:41,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:01:41,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:01:42,228 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:01:42,229 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-15 01:01:42,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:01:42 BoogieIcfgContainer [2019-10-15 01:01:42,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:01:42,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:01:42,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:01:42,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:01:42,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:01:41" (1/3) ... [2019-10-15 01:01:42,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca8342f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:01:42, skipping insertion in model container [2019-10-15 01:01:42,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:01:41" (2/3) ... [2019-10-15 01:01:42,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca8342f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:01:42, skipping insertion in model container [2019-10-15 01:01:42,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:01:42" (3/3) ... [2019-10-15 01:01:42,238 INFO L109 eAbstractionObserver]: Analyzing ICFG test25-2.c [2019-10-15 01:01:42,248 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:01:42,255 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:01:42,265 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:01:42,288 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:01:42,288 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:01:42,289 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:01:42,289 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:01:42,289 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:01:42,289 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:01:42,289 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:01:42,289 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:01:42,304 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-10-15 01:01:42,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-15 01:01:42,309 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:42,310 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:01:42,313 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:42,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:42,318 INFO L82 PathProgramCache]: Analyzing trace with hash -899836778, now seen corresponding path program 1 times [2019-10-15 01:01:42,326 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:42,326 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264145901] [2019-10-15 01:01:42,327 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:42,327 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:42,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:42,463 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 01:01:42,464 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264145901] [2019-10-15 01:01:42,465 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:01:42,466 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:01:42,466 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733680376] [2019-10-15 01:01:42,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:01:42,473 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:42,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:01:42,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:01:42,492 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-10-15 01:01:42,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:42,518 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2019-10-15 01:01:42,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:01:42,520 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-10-15 01:01:42,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:42,531 INFO L225 Difference]: With dead ends: 42 [2019-10-15 01:01:42,532 INFO L226 Difference]: Without dead ends: 20 [2019-10-15 01:01:42,536 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 01:01:42,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-15 01:01:42,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-10-15 01:01:42,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-15 01:01:42,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-10-15 01:01:42,583 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 17 [2019-10-15 01:01:42,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:42,584 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-10-15 01:01:42,585 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:01:42,585 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-10-15 01:01:42,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-15 01:01:42,586 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:42,586 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:01:42,587 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:42,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:42,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1137678901, now seen corresponding path program 1 times [2019-10-15 01:01:42,588 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:42,588 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772907067] [2019-10-15 01:01:42,589 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:42,589 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:42,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:42,715 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 01:01:42,715 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772907067] [2019-10-15 01:01:42,716 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:01:42,716 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:01:42,716 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195380922] [2019-10-15 01:01:42,718 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:01:42,719 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:42,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:01:42,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:01:42,720 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 3 states. [2019-10-15 01:01:42,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:42,767 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2019-10-15 01:01:42,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:01:42,769 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-10-15 01:01:42,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:42,770 INFO L225 Difference]: With dead ends: 34 [2019-10-15 01:01:42,770 INFO L226 Difference]: Without dead ends: 22 [2019-10-15 01:01:42,772 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:01:42,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-15 01:01:42,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2019-10-15 01:01:42,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-15 01:01:42,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-10-15 01:01:42,784 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 18 [2019-10-15 01:01:42,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:42,784 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-10-15 01:01:42,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:01:42,785 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-10-15 01:01:42,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-15 01:01:42,786 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:01:42,787 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:01:42,787 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:01:42,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:42,790 INFO L82 PathProgramCache]: Analyzing trace with hash 278779309, now seen corresponding path program 1 times [2019-10-15 01:01:42,790 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:01:42,790 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858244139] [2019-10-15 01:01:42,791 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:42,791 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:01:42,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:01:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:42,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:01:42,931 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858244139] [2019-10-15 01:01:42,932 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821567995] [2019-10-15 01:01:42,932 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 01:01:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:01:43,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 01:01:43,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:01:43,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:01:43,059 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:01:43,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:01:43,098 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [640471110] [2019-10-15 01:01:43,104 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 21 [2019-10-15 01:01:43,145 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:01:43,145 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:01:43,206 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-15 01:01:43,208 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 19 root evaluator evaluations with a maximum evaluation depth of 0. Performed 19 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 36 variables. [2019-10-15 01:01:43,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:01:43,212 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-15 01:01:43,249 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-15 01:01:43,249 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-15 01:01:43,251 INFO L553 sIntCurrentIteration]: We unified 19 AI predicates to 19 [2019-10-15 01:01:43,252 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-15 01:01:43,252 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:01:43,253 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-10-15 01:01:43,253 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957259268] [2019-10-15 01:01:43,254 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:01:43,254 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-15 01:01:43,255 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-15 01:01:43,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:01:43,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:01:43,256 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 2 states. [2019-10-15 01:01:43,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:01:43,258 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-10-15 01:01:43,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:01:43,259 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2019-10-15 01:01:43,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:01:43,259 INFO L225 Difference]: With dead ends: 21 [2019-10-15 01:01:43,259 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:01:43,260 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 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 01:01:43,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:01:43,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:01:43,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:01:43,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:01:43,261 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-10-15 01:01:43,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:01:43,262 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:01:43,262 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:01:43,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:01:43,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:01:43,466 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:01:43,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:01:43,500 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:01:43,501 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:01:43,501 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:01:43,501 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:01:43,501 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:01:43,502 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:01:43,502 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:01:43,502 INFO L439 ceAbstractionStarter]: At program point L37-4(lines 37 39) the Hoare annotation is: false [2019-10-15 01:01:43,502 INFO L443 ceAbstractionStarter]: For program point L27-2(lines 27 30) no Hoare annotation was computed. [2019-10-15 01:01:43,502 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 20 50) no Hoare annotation was computed. [2019-10-15 01:01:43,502 INFO L439 ceAbstractionStarter]: At program point L27-3(lines 27 30) the Hoare annotation is: false [2019-10-15 01:01:43,503 INFO L443 ceAbstractionStarter]: For program point L27-4(lines 21 50) no Hoare annotation was computed. [2019-10-15 01:01:43,503 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2019-10-15 01:01:43,503 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 20 50) no Hoare annotation was computed. [2019-10-15 01:01:43,503 INFO L443 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2019-10-15 01:01:43,503 INFO L443 ceAbstractionStarter]: For program point L40-1(lines 40 42) no Hoare annotation was computed. [2019-10-15 01:01:43,504 INFO L443 ceAbstractionStarter]: For program point L32(lines 32 44) no Hoare annotation was computed. [2019-10-15 01:01:43,506 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 20 50) the Hoare annotation is: true [2019-10-15 01:01:43,507 INFO L439 ceAbstractionStarter]: At program point L41(lines 21 50) the Hoare annotation is: false [2019-10-15 01:01:43,507 INFO L443 ceAbstractionStarter]: For program point L37-1(lines 37 39) no Hoare annotation was computed. [2019-10-15 01:01:43,508 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 43) no Hoare annotation was computed. [2019-10-15 01:01:43,508 INFO L439 ceAbstractionStarter]: At program point L37-3(lines 37 39) the Hoare annotation is: false [2019-10-15 01:01:43,508 INFO L446 ceAbstractionStarter]: At program point checkENTRY(lines 15 18) the Hoare annotation is: true [2019-10-15 01:01:43,509 INFO L443 ceAbstractionStarter]: For program point checkFINAL(lines 15 18) no Hoare annotation was computed. [2019-10-15 01:01:43,509 INFO L443 ceAbstractionStarter]: For program point checkEXIT(lines 15 18) no Hoare annotation was computed. [2019-10-15 01:01:43,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:01:43 BoogieIcfgContainer [2019-10-15 01:01:43,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:01:43,539 INFO L168 Benchmark]: Toolchain (without parser) took 2090.06 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 103.6 MB in the beginning and 100.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 67.2 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:43,541 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 01:01:43,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.15 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 103.4 MB in the beginning and 181.2 MB in the end (delta: -77.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:43,546 INFO L168 Benchmark]: Boogie Preprocessor took 38.76 ms. Allocated memory is still 202.9 MB. Free memory was 181.2 MB in the beginning and 179.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:43,547 INFO L168 Benchmark]: RCFGBuilder took 387.03 ms. Allocated memory is still 202.9 MB. Free memory was 179.2 MB in the beginning and 162.3 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:43,549 INFO L168 Benchmark]: TraceAbstraction took 1299.47 ms. Allocated memory is still 202.9 MB. Free memory was 162.3 MB in the beginning and 100.4 MB in the end (delta: 61.9 MB). Peak memory consumption was 61.9 MB. Max. memory is 7.1 GB. [2019-10-15 01:01:43,556 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 357.15 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 103.4 MB in the beginning and 181.2 MB in the end (delta: -77.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.76 ms. Allocated memory is still 202.9 MB. Free memory was 181.2 MB in the beginning and 179.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 387.03 ms. Allocated memory is still 202.9 MB. Free memory was 179.2 MB in the beginning and 162.3 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1299.47 ms. Allocated memory is still 202.9 MB. Free memory was 162.3 MB in the beginning and 100.4 MB in the end (delta: 61.9 MB). Peak memory consumption was 61.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: 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: 37]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 1 SDslu, 17 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 11 NumberOfFragments, 9 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 2004 SizeOfPredicates, 1 NumberOfNonLiveVariables, 109 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 108, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.8947368421052632, AVG_VARS_REMOVED_DURING_WEAKENING: 1.736842105263158, AVG_WEAKENED_CONJUNCTS: 0.3157894736842105, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...