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/array-industry-pattern/array_single_elem_init.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:52:32,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:52:32,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:52:32,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:52:32,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:52:32,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:52:32,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:52:32,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:52:32,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:52:32,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:52:32,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:52:32,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:52:32,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:52:32,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:52:32,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:52:32,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:52:32,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:52:32,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:52:32,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:52:32,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:52:32,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:52:32,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:52:32,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:52:32,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:52:32,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:52:32,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:52:32,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:52:32,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:52:32,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:52:32,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:52:32,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:52:32,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:52:32,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:52:32,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:52:32,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:52:32,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:52:32,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:52:32,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:52:32,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:52:32,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:52:32,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:52:32,414 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 [2019-10-14 23:52:32,446 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:52:32,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:52:32,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:52:32,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:52:32,451 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:52:32,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:52:32,451 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:52:32,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:52:32,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:52:32,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:52:32,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:52:32,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:52:32,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:52:32,454 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:52:32,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:52:32,455 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:52:32,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:52:32,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:52:32,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:52:32,457 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:52:32,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:52:32,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:52:32,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:52:32,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:52:32,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:52:32,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:52:32,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:52:32,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:52:32,459 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 [2019-10-14 23:52:32,785 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:52:32,810 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:52:32,814 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:52:32,816 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:52:32,816 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:52:32,817 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_single_elem_init.i [2019-10-14 23:52:32,895 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c8d4a45/8df604f5bbe44fceb736735b7dd0882f/FLAG33e92653b [2019-10-14 23:52:33,302 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:52:33,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_single_elem_init.i [2019-10-14 23:52:33,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c8d4a45/8df604f5bbe44fceb736735b7dd0882f/FLAG33e92653b [2019-10-14 23:52:33,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c8d4a45/8df604f5bbe44fceb736735b7dd0882f [2019-10-14 23:52:33,692 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:52:33,694 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:52:33,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:33,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:52:33,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:52:33,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:33" (1/1) ... [2019-10-14 23:52:33,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f255249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:33, skipping insertion in model container [2019-10-14 23:52:33,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:33" (1/1) ... [2019-10-14 23:52:33,712 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:52:33,733 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:52:33,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:33,997 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:52:34,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:34,175 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:52:34,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:34 WrapperNode [2019-10-14 23:52:34,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:34,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:52:34,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:52:34,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:52:34,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:34" (1/1) ... [2019-10-14 23:52:34,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:34" (1/1) ... [2019-10-14 23:52:34,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:34" (1/1) ... [2019-10-14 23:52:34,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:34" (1/1) ... [2019-10-14 23:52:34,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:34" (1/1) ... [2019-10-14 23:52:34,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:34" (1/1) ... [2019-10-14 23:52:34,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:34" (1/1) ... [2019-10-14 23:52:34,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:52:34,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:52:34,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:52:34,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:52:34,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:34" (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 [2019-10-14 23:52:34,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:52:34,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:52:34,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 23:52:34,307 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:52:34,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:52:34,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:52:34,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:52:34,308 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:52:34,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:52:34,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:52:34,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:52:34,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:52:34,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:52:34,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:52:34,580 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:52:34,581 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-14 23:52:34,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:34 BoogieIcfgContainer [2019-10-14 23:52:34,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:52:34,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:52:34,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:52:34,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:52:34,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:52:33" (1/3) ... [2019-10-14 23:52:34,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631f61e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:34, skipping insertion in model container [2019-10-14 23:52:34,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:34" (2/3) ... [2019-10-14 23:52:34,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631f61e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:34, skipping insertion in model container [2019-10-14 23:52:34,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:34" (3/3) ... [2019-10-14 23:52:34,590 INFO L109 eAbstractionObserver]: Analyzing ICFG array_single_elem_init.i [2019-10-14 23:52:34,600 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:52:34,608 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:52:34,619 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:52:34,659 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:52:34,660 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:52:34,660 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:52:34,660 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:52:34,660 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:52:34,661 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:52:34,661 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:52:34,661 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:52:34,679 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-10-14 23:52:34,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-14 23:52:34,684 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:34,685 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:34,687 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:34,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:34,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1656037931, now seen corresponding path program 1 times [2019-10-14 23:52:34,699 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:34,699 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556916342] [2019-10-14 23:52:34,700 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:34,700 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:34,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:34,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:34,835 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556916342] [2019-10-14 23:52:34,836 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:34,836 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-14 23:52:34,837 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914780462] [2019-10-14 23:52:34,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:52:34,843 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:34,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:52:34,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:34,860 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2019-10-14 23:52:34,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:34,884 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions. [2019-10-14 23:52:34,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:52:34,885 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-10-14 23:52:34,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:34,894 INFO L225 Difference]: With dead ends: 46 [2019-10-14 23:52:34,894 INFO L226 Difference]: Without dead ends: 24 [2019-10-14 23:52:34,898 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 [2019-10-14 23:52:34,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-10-14 23:52:34,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-10-14 23:52:34,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-14 23:52:34,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2019-10-14 23:52:34,941 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 14 [2019-10-14 23:52:34,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:34,941 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2019-10-14 23:52:34,941 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:52:34,942 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2019-10-14 23:52:34,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-14 23:52:34,943 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:34,943 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:34,943 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:34,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:34,944 INFO L82 PathProgramCache]: Analyzing trace with hash -533813011, now seen corresponding path program 1 times [2019-10-14 23:52:34,944 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:34,945 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072062118] [2019-10-14 23:52:34,945 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:34,945 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:34,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:35,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:35,021 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072062118] [2019-10-14 23:52:35,021 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:35,021 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:52:35,022 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381337921] [2019-10-14 23:52:35,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:52:35,024 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:35,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:52:35,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:52:35,025 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 3 states. [2019-10-14 23:52:35,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:35,160 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2019-10-14 23:52:35,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:52:35,162 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-10-14 23:52:35,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:35,164 INFO L225 Difference]: With dead ends: 45 [2019-10-14 23:52:35,164 INFO L226 Difference]: Without dead ends: 33 [2019-10-14 23:52:35,165 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 [2019-10-14 23:52:35,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-10-14 23:52:35,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2019-10-14 23:52:35,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-14 23:52:35,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2019-10-14 23:52:35,179 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 14 [2019-10-14 23:52:35,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:35,181 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2019-10-14 23:52:35,181 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:52:35,181 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2019-10-14 23:52:35,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-14 23:52:35,183 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:35,184 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:35,184 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:35,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:35,185 INFO L82 PathProgramCache]: Analyzing trace with hash -414258795, now seen corresponding path program 1 times [2019-10-14 23:52:35,186 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:35,187 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55446464] [2019-10-14 23:52:35,188 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:35,188 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:35,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:35,323 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:52:35,324 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55446464] [2019-10-14 23:52:35,324 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394000110] [2019-10-14 23:52:35,325 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 [2019-10-14 23:52:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:35,399 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:52:35,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:52:35,449 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-14 23:52:35,450 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:52:35,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-14 23:52:35,492 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [2115410011] [2019-10-14 23:52:35,499 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 23 [2019-10-14 23:52:35,542 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-14 23:52:35,542 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-14 23:52:35,610 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-14 23:52:35,612 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 25 variables. [2019-10-14 23:52:35,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:35,616 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-14 23:52:35,654 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-14 23:52:35,655 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-14 23:52:35,657 INFO L553 sIntCurrentIteration]: We unified 21 AI predicates to 21 [2019-10-14 23:52:35,657 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-14 23:52:35,658 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-14 23:52:35,658 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-10-14 23:52:35,658 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668730507] [2019-10-14 23:52:35,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:52:35,660 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:35,660 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-14 23:52:35,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:52:35,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:35,661 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand 2 states. [2019-10-14 23:52:35,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:35,664 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2019-10-14 23:52:35,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:52:35,664 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-10-14 23:52:35,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:35,665 INFO L225 Difference]: With dead ends: 27 [2019-10-14 23:52:35,665 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:52:35,667 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:35,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:52:35,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:52:35,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:52:35,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:52:35,669 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-10-14 23:52:35,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:35,670 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:52:35,670 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:52:35,670 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:52:35,670 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:52:35,876 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:35,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:52:35,914 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:35,915 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:35,915 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:35,915 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:35,915 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-14 23:52:35,915 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:35,915 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:35,916 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 4 40) no Hoare annotation was computed. [2019-10-14 23:52:35,916 INFO L443 ceAbstractionStarter]: For program point L21(lines 21 28) no Hoare annotation was computed. [2019-10-14 23:52:35,916 INFO L443 ceAbstractionStarter]: For program point L19(lines 19 29) no Hoare annotation was computed. [2019-10-14 23:52:35,916 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 4 40) no Hoare annotation was computed. [2019-10-14 23:52:35,916 INFO L439 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: false [2019-10-14 23:52:35,916 INFO L443 ceAbstractionStarter]: For program point L36-1(line 36) no Hoare annotation was computed. [2019-10-14 23:52:35,916 INFO L443 ceAbstractionStarter]: For program point L34(lines 34 37) no Hoare annotation was computed. [2019-10-14 23:52:35,916 INFO L443 ceAbstractionStarter]: For program point L32-2(lines 32 38) no Hoare annotation was computed. [2019-10-14 23:52:35,917 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 4 40) the Hoare annotation is: true [2019-10-14 23:52:35,917 INFO L439 ceAbstractionStarter]: At program point L32-3(lines 32 38) the Hoare annotation is: false [2019-10-14 23:52:35,917 INFO L443 ceAbstractionStarter]: For program point L32-4(lines 32 38) no Hoare annotation was computed. [2019-10-14 23:52:35,917 INFO L443 ceAbstractionStarter]: For program point L14(lines 14 18) no Hoare annotation was computed. [2019-10-14 23:52:35,917 INFO L443 ceAbstractionStarter]: For program point L14-2(lines 14 18) no Hoare annotation was computed. [2019-10-14 23:52:35,917 INFO L443 ceAbstractionStarter]: For program point L10-2(lines 10 30) no Hoare annotation was computed. [2019-10-14 23:52:35,917 INFO L439 ceAbstractionStarter]: At program point L10-3(lines 10 30) the Hoare annotation is: false [2019-10-14 23:52:35,918 INFO L443 ceAbstractionStarter]: For program point L10-4(lines 10 30) no Hoare annotation was computed. [2019-10-14 23:52:35,918 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-10-14 23:52:35,918 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-10-14 23:52:35,918 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-10-14 23:52:35,918 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-10-14 23:52:35,919 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-10-14 23:52:35,919 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-10-14 23:52:35,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:52:35 BoogieIcfgContainer [2019-10-14 23:52:35,928 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:52:35,931 INFO L168 Benchmark]: Toolchain (without parser) took 2235.93 ms. Allocated memory was 144.7 MB in the beginning and 203.9 MB in the end (delta: 59.2 MB). Free memory was 102.4 MB in the beginning and 102.7 MB in the end (delta: -329.1 kB). Peak memory consumption was 58.9 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:35,932 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-14 23:52:35,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 481.16 ms. Allocated memory was 144.7 MB in the beginning and 203.9 MB in the end (delta: 59.2 MB). Free memory was 102.2 MB in the beginning and 184.2 MB in the end (delta: -82.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:35,934 INFO L168 Benchmark]: Boogie Preprocessor took 62.98 ms. Allocated memory is still 203.9 MB. Free memory was 184.2 MB in the beginning and 180.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:35,935 INFO L168 Benchmark]: RCFGBuilder took 341.88 ms. Allocated memory is still 203.9 MB. Free memory was 180.9 MB in the beginning and 165.4 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:35,936 INFO L168 Benchmark]: TraceAbstraction took 1345.17 ms. Allocated memory is still 203.9 MB. Free memory was 164.7 MB in the beginning and 102.7 MB in the end (delta: 62.0 MB). Peak memory consumption was 62.0 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:35,940 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 481.16 ms. Allocated memory was 144.7 MB in the beginning and 203.9 MB in the end (delta: 59.2 MB). Free memory was 102.2 MB in the beginning and 184.2 MB in the end (delta: -82.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.98 ms. Allocated memory is still 203.9 MB. Free memory was 184.2 MB in the beginning and 180.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 341.88 ms. Allocated memory is still 203.9 MB. Free memory was 180.9 MB in the beginning and 165.4 MB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1345.17 ms. Allocated memory is still 203.9 MB. Free memory was 164.7 MB in the beginning and 102.7 MB in the end (delta: 62.0 MB). Peak memory consumption was 62.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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: 10]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 58 SDtfs, 10 SDslu, 15 SDs, 0 SdLazy, 22 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 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, 0.2s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 2401 SizeOfPredicates, 1 NumberOfNonLiveVariables, 86 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 5/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 117, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9166666666666666, AVG_VARS_REMOVED_DURING_WEAKENING: 0.8095238095238095, AVG_WEAKENED_CONJUNCTS: 0.2857142857142857, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...