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-examples/standard_copyInitSum2_ground-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:53:12,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:53:12,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:53:12,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:53:12,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:53:12,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:53:12,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:53:12,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:53:12,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:53:12,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:53:12,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:53:12,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:53:12,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:53:12,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:53:12,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:53:12,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:53:12,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:53:12,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:53:12,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:53:12,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:53:12,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:53:12,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:53:12,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:53:12,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:53:12,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:53:12,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:53:12,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:53:12,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:53:12,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:53:12,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:53:12,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:53:12,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:53:12,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:53:12,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:53:12,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:53:12,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:53:12,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:53:12,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:53:12,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:53:12,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:53:12,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:53:12,537 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 [2019-10-13 19:53:12,556 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:53:12,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:53:12,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:53:12,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:53:12,558 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:53:12,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:53:12,559 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:53:12,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:53:12,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:53:12,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:53:12,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:53:12,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:53:12,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:53:12,560 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:53:12,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:53:12,561 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:53:12,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:53:12,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:53:12,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:53:12,561 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:53:12,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:53:12,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:53:12,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:53:12,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:53:12,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:53:12,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:53:12,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:53:12,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:53:12,563 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 [2019-10-13 19:53:12,848 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:53:12,865 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:53:12,869 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:53:12,870 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:53:12,871 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:53:12,872 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_copyInitSum2_ground-2.i [2019-10-13 19:53:12,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1730af030/2974edf8de6e44d99e7e5d07b0e47242/FLAG17e64570b [2019-10-13 19:53:13,431 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:53:13,432 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_copyInitSum2_ground-2.i [2019-10-13 19:53:13,438 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1730af030/2974edf8de6e44d99e7e5d07b0e47242/FLAG17e64570b [2019-10-13 19:53:13,856 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1730af030/2974edf8de6e44d99e7e5d07b0e47242 [2019-10-13 19:53:13,868 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:53:13,869 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:53:13,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:13,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:53:13,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:53:13,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:13" (1/1) ... [2019-10-13 19:53:13,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@154386d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:13, skipping insertion in model container [2019-10-13 19:53:13,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:13" (1/1) ... [2019-10-13 19:53:13,884 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:53:13,897 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:53:14,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:14,083 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:53:14,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:14,125 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:53:14,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14 WrapperNode [2019-10-13 19:53:14,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:14,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:53:14,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:53:14,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:53:14,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14" (1/1) ... [2019-10-13 19:53:14,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14" (1/1) ... [2019-10-13 19:53:14,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14" (1/1) ... [2019-10-13 19:53:14,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14" (1/1) ... [2019-10-13 19:53:14,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14" (1/1) ... [2019-10-13 19:53:14,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14" (1/1) ... [2019-10-13 19:53:14,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14" (1/1) ... [2019-10-13 19:53:14,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:53:14,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:53:14,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:53:14,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:53:14,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14" (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 [2019-10-13 19:53:14,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:53:14,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:53:14,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:53:14,322 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:53:14,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:53:14,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:53:14,323 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:53:14,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:53:14,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:53:14,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:53:14,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:53:14,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:53:14,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:53:14,613 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:53:14,613 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 19:53:14,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:14 BoogieIcfgContainer [2019-10-13 19:53:14,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:53:14,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:53:14,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:53:14,622 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:53:14,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:13" (1/3) ... [2019-10-13 19:53:14,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160eb02d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:14, skipping insertion in model container [2019-10-13 19:53:14,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:14" (2/3) ... [2019-10-13 19:53:14,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160eb02d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:14, skipping insertion in model container [2019-10-13 19:53:14,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:14" (3/3) ... [2019-10-13 19:53:14,626 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_copyInitSum2_ground-2.i [2019-10-13 19:53:14,636 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:53:14,645 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:53:14,677 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:53:14,703 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:53:14,704 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:53:14,704 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:53:14,704 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:53:14,704 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:53:14,704 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:53:14,704 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:53:14,704 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:53:14,719 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-10-13 19:53:14,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-13 19:53:14,725 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:14,726 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:14,727 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:14,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:14,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1001985310, now seen corresponding path program 1 times [2019-10-13 19:53:14,739 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:14,740 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401355732] [2019-10-13 19:53:14,740 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:14,740 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:14,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:14,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:14,870 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401355732] [2019-10-13 19:53:14,871 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:14,872 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 19:53:14,872 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897574318] [2019-10-13 19:53:14,877 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:14,879 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:14,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:14,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:14,897 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2019-10-13 19:53:14,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:14,923 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2019-10-13 19:53:14,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:14,925 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-10-13 19:53:14,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:14,934 INFO L225 Difference]: With dead ends: 51 [2019-10-13 19:53:14,934 INFO L226 Difference]: Without dead ends: 24 [2019-10-13 19:53:14,938 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 [2019-10-13 19:53:14,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-10-13 19:53:14,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-10-13 19:53:14,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-13 19:53:14,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2019-10-13 19:53:14,979 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 17 [2019-10-13 19:53:14,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:14,980 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2019-10-13 19:53:14,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:14,981 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2019-10-13 19:53:14,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-13 19:53:14,982 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:14,982 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:14,982 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:14,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:14,983 INFO L82 PathProgramCache]: Analyzing trace with hash -400143846, now seen corresponding path program 1 times [2019-10-13 19:53:14,983 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:14,984 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114244104] [2019-10-13 19:53:14,984 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:14,984 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:14,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:15,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:15,049 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114244104] [2019-10-13 19:53:15,049 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:15,051 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:53:15,051 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355360444] [2019-10-13 19:53:15,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:53:15,053 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:15,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:53:15,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:15,054 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 3 states. [2019-10-13 19:53:15,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:15,120 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2019-10-13 19:53:15,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:53:15,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-10-13 19:53:15,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:15,122 INFO L225 Difference]: With dead ends: 46 [2019-10-13 19:53:15,123 INFO L226 Difference]: Without dead ends: 29 [2019-10-13 19:53:15,124 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 [2019-10-13 19:53:15,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-13 19:53:15,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2019-10-13 19:53:15,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-13 19:53:15,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2019-10-13 19:53:15,131 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 17 [2019-10-13 19:53:15,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:15,132 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2019-10-13 19:53:15,132 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:53:15,132 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2019-10-13 19:53:15,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-13 19:53:15,133 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:15,133 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, 1, 1] [2019-10-13 19:53:15,133 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:15,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:15,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1150570790, now seen corresponding path program 1 times [2019-10-13 19:53:15,134 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:15,135 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703059099] [2019-10-13 19:53:15,135 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:15,135 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:15,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:15,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 19:53:15,211 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703059099] [2019-10-13 19:53:15,212 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126051628] [2019-10-13 19:53:15,212 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 [2019-10-13 19:53:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:15,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 19:53:15,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:15,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 19:53:15,311 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:15,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 19:53:15,354 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [152147543] [2019-10-13 19:53:15,361 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 23 [2019-10-13 19:53:15,397 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 19:53:15,397 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 19:53:15,451 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 19:53:15,453 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 23 variables. [2019-10-13 19:53:15,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:15,457 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 19:53:15,492 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 19:53:15,492 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 19:53:15,494 INFO L553 sIntCurrentIteration]: We unified 21 AI predicates to 21 [2019-10-13 19:53:15,494 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 19:53:15,495 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 19:53:15,495 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-10-13 19:53:15,495 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613294112] [2019-10-13 19:53:15,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:15,497 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:15,497 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 19:53:15,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:15,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:15,497 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 2 states. [2019-10-13 19:53:15,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:15,500 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2019-10-13 19:53:15,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:15,501 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-10-13 19:53:15,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:15,501 INFO L225 Difference]: With dead ends: 27 [2019-10-13 19:53:15,501 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:53:15,502 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 [2019-10-13 19:53:15,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:53:15,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:53:15,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:53:15,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:53:15,503 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-10-13 19:53:15,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:15,503 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:53:15,503 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:15,503 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:53:15,504 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:53:15,706 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:15,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:53:15,751 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:15,752 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:15,752 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:15,752 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:15,752 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:53:15,753 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:15,753 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:15,753 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 3 22) no Hoare annotation was computed. [2019-10-13 19:53:15,753 INFO L439 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: false [2019-10-13 19:53:15,753 INFO L443 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2019-10-13 19:53:15,753 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2019-10-13 19:53:15,754 INFO L439 ceAbstractionStarter]: At program point L11-3(lines 11 13) the Hoare annotation is: false [2019-10-13 19:53:15,754 INFO L443 ceAbstractionStarter]: For program point L11-4(lines 11 13) no Hoare annotation was computed. [2019-10-13 19:53:15,755 INFO L439 ceAbstractionStarter]: At program point L7-2(lines 7 10) the Hoare annotation is: false [2019-10-13 19:53:15,756 INFO L443 ceAbstractionStarter]: For program point L7-3(lines 7 10) no Hoare annotation was computed. [2019-10-13 19:53:15,756 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 3 22) no Hoare annotation was computed. [2019-10-13 19:53:15,756 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 3 22) the Hoare annotation is: true [2019-10-13 19:53:15,756 INFO L443 ceAbstractionStarter]: For program point L18-2(lines 18 20) no Hoare annotation was computed. [2019-10-13 19:53:15,756 INFO L439 ceAbstractionStarter]: At program point L18-3(lines 18 20) the Hoare annotation is: false [2019-10-13 19:53:15,757 INFO L443 ceAbstractionStarter]: For program point L18-4(lines 18 20) no Hoare annotation was computed. [2019-10-13 19:53:15,757 INFO L443 ceAbstractionStarter]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2019-10-13 19:53:15,757 INFO L439 ceAbstractionStarter]: At program point L14-3(lines 14 16) the Hoare annotation is: false [2019-10-13 19:53:15,757 INFO L443 ceAbstractionStarter]: For program point L14-4(lines 14 16) no Hoare annotation was computed. [2019-10-13 19:53:15,757 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-10-13 19:53:15,757 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-10-13 19:53:15,758 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-10-13 19:53:15,758 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-10-13 19:53:15,758 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-10-13 19:53:15,759 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-10-13 19:53:15,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:15 BoogieIcfgContainer [2019-10-13 19:53:15,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:53:15,778 INFO L168 Benchmark]: Toolchain (without parser) took 1906.38 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 106.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:15,780 INFO L168 Benchmark]: CDTParser took 0.23 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: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-13 19:53:15,782 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.71 ms. Allocated memory is still 138.9 MB. Free memory was 103.4 MB in the beginning and 93.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:15,783 INFO L168 Benchmark]: Boogie Preprocessor took 130.65 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 93.6 MB in the beginning and 180.6 MB in the end (delta: -87.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:15,786 INFO L168 Benchmark]: RCFGBuilder took 353.09 ms. Allocated memory is still 202.9 MB. Free memory was 180.6 MB in the beginning and 165.5 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:15,792 INFO L168 Benchmark]: TraceAbstraction took 1157.23 ms. Allocated memory is still 202.9 MB. Free memory was 165.5 MB in the beginning and 106.3 MB in the end (delta: 59.2 MB). Peak memory consumption was 59.2 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:15,803 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 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 255.71 ms. Allocated memory is still 138.9 MB. Free memory was 103.4 MB in the beginning and 93.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.65 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 93.6 MB in the beginning and 180.6 MB in the end (delta: -87.0 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 353.09 ms. Allocated memory is still 202.9 MB. Free memory was 180.6 MB in the beginning and 165.5 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1157.23 ms. Allocated memory is still 202.9 MB. Free memory was 165.5 MB in the beginning and 106.3 MB in the end (delta: 59.2 MB). Peak memory consumption was 59.2 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: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 1 error locations. Result: SAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 2 SDslu, 16 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 12 NumberOfFragments, 10 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 2119 SizeOfPredicates, 1 NumberOfNonLiveVariables, 76 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 6/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 97, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9404761904761905, 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...