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/loop-new/count_by_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:05:44,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:05:44,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:05:44,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:05:44,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:05:44,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:05:44,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:05:44,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:05:44,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:05:44,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:05:44,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:05:44,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:05:44,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:05:44,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:05:44,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:05:44,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:05:44,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:05:44,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:05:44,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:05:44,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:05:44,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:05:44,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:05:44,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:05:44,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:05:44,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:05:44,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:05:44,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:05:44,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:05:44,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:05:44,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:05:44,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:05:44,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:05:44,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:05:44,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:05:44,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:05:44,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:05:44,188 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:05:44,202 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:05:44,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:05:44,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:05:44,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:05:44,204 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:05:44,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:05:44,204 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:05:44,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:05:44,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:05:44,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:05:44,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:05:44,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:05:44,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:05:44,206 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:05:44,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:05:44,206 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:05:44,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:05:44,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:05:44,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:05:44,207 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:05:44,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:05:44,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:05:44,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:05:44,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:05:44,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:05:44,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:05:44,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:05:44,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:05:44,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:05:44,485 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:05:44,501 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:05:44,506 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:05:44,507 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:05:44,508 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:05:44,508 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_1.i [2019-10-15 01:05:44,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9384d54a1/7a02733ea0874eea9286643780d34e02/FLAG72a75eedb [2019-10-15 01:05:45,077 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:05:45,078 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1.i [2019-10-15 01:05:45,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9384d54a1/7a02733ea0874eea9286643780d34e02/FLAG72a75eedb [2019-10-15 01:05:45,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9384d54a1/7a02733ea0874eea9286643780d34e02 [2019-10-15 01:05:45,488 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:05:45,489 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:05:45,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:05:45,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:05:45,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:05:45,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:05:45" (1/1) ... [2019-10-15 01:05:45,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54803c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:05:45, skipping insertion in model container [2019-10-15 01:05:45,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:05:45" (1/1) ... [2019-10-15 01:05:45,505 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:05:45,520 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:05:45,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:05:45,675 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:05:45,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:05:45,698 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:05:45,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:05:45 WrapperNode [2019-10-15 01:05:45,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:05:45,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:05:45,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:05:45,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:05:45,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:05:45" (1/1) ... [2019-10-15 01:05:45,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:05:45" (1/1) ... [2019-10-15 01:05:45,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:05:45" (1/1) ... [2019-10-15 01:05:45,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:05:45" (1/1) ... [2019-10-15 01:05:45,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:05:45" (1/1) ... [2019-10-15 01:05:45,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:05:45" (1/1) ... [2019-10-15 01:05:45,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:05:45" (1/1) ... [2019-10-15 01:05:45,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:05:45,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:05:45,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:05:45,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:05:45,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:05:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:05:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:05:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:05:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 01:05:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:05:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:05:45,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 01:05:45,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 01:05:45,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:05:45,860 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:05:45,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:05:45,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:05:46,013 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:05:46,014 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:05:46,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:05:46 BoogieIcfgContainer [2019-10-15 01:05:46,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:05:46,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:05:46,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:05:46,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:05:46,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:05:45" (1/3) ... [2019-10-15 01:05:46,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e87635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:05:46, skipping insertion in model container [2019-10-15 01:05:46,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:05:45" (2/3) ... [2019-10-15 01:05:46,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e87635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:05:46, skipping insertion in model container [2019-10-15 01:05:46,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:05:46" (3/3) ... [2019-10-15 01:05:46,029 INFO L109 eAbstractionObserver]: Analyzing ICFG count_by_1.i [2019-10-15 01:05:46,037 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:05:46,044 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:05:46,054 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:05:46,079 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:05:46,079 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:05:46,079 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:05:46,079 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:05:46,079 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:05:46,080 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:05:46,080 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:05:46,080 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:05:46,096 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-10-15 01:05:46,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 01:05:46,100 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:05:46,101 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:05:46,103 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:05:46,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:05:46,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1871509567, now seen corresponding path program 1 times [2019-10-15 01:05:46,115 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:05:46,116 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28686363] [2019-10-15 01:05:46,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:05:46,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:05:46,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:05:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:05:46,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:05:46,205 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28686363] [2019-10-15 01:05:46,206 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:05:46,206 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:05:46,207 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058737167] [2019-10-15 01:05:46,211 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:05:46,213 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:05:46,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:05:46,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:05:46,231 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-10-15 01:05:46,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:05:46,254 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2019-10-15 01:05:46,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:05:46,256 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-15 01:05:46,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:05:46,264 INFO L225 Difference]: With dead ends: 31 [2019-10-15 01:05:46,265 INFO L226 Difference]: Without dead ends: 12 [2019-10-15 01:05:46,268 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:05:46,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-10-15 01:05:46,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-10-15 01:05:46,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-15 01:05:46,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-10-15 01:05:46,308 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-10-15 01:05:46,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:05:46,309 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-10-15 01:05:46,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:05:46,309 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-10-15 01:05:46,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 01:05:46,310 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:05:46,310 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:05:46,310 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:05:46,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:05:46,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1877050693, now seen corresponding path program 1 times [2019-10-15 01:05:46,311 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:05:46,312 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404587771] [2019-10-15 01:05:46,312 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:05:46,312 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:05:46,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:05:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:05:46,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:05:46,383 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404587771] [2019-10-15 01:05:46,383 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:05:46,384 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:05:46,384 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6177724] [2019-10-15 01:05:46,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:05:46,387 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:05:46,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:05:46,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:05:46,388 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2019-10-15 01:05:46,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:05:46,451 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-10-15 01:05:46,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:05:46,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-10-15 01:05:46,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:05:46,453 INFO L225 Difference]: With dead ends: 19 [2019-10-15 01:05:46,453 INFO L226 Difference]: Without dead ends: 14 [2019-10-15 01:05:46,454 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:05:46,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-15 01:05:46,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-10-15 01:05:46,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-15 01:05:46,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-10-15 01:05:46,460 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2019-10-15 01:05:46,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:05:46,461 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-10-15 01:05:46,461 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:05:46,462 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-10-15 01:05:46,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-15 01:05:46,462 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:05:46,464 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:05:46,468 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:05:46,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:05:46,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1175909113, now seen corresponding path program 1 times [2019-10-15 01:05:46,469 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:05:46,469 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847885980] [2019-10-15 01:05:46,470 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:05:46,470 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:05:46,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:05:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:05:46,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:05:46,528 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847885980] [2019-10-15 01:05:46,528 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795793606] [2019-10-15 01:05:46,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:05:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:05:46,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 01:05:46,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:05:46,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:05:46,651 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:05:46,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:05:46,704 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1359923174] [2019-10-15 01:05:46,711 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 13 [2019-10-15 01:05:46,747 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:05:46,748 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:05:46,845 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-15 01:05:46,848 INFO L272 AbstractInterpreter]: Visited 12 different actions 27 times. Merged at 2 different actions 10 times. Widened at 1 different actions 1 times. Performed 45 root evaluator evaluations with a maximum evaluation depth of 4. Performed 45 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2019-10-15 01:05:46,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:05:46,853 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-15 01:05:46,853 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-10-15 01:05:46,853 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2019-10-15 01:05:46,854 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524971320] [2019-10-15 01:05:46,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:05:46,855 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:05:46,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:05:46,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:05:46,856 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2019-10-15 01:05:46,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:05:46,909 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2019-10-15 01:05:46,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:05:46,909 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-10-15 01:05:46,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:05:46,910 INFO L225 Difference]: With dead ends: 24 [2019-10-15 01:05:46,911 INFO L226 Difference]: Without dead ends: 19 [2019-10-15 01:05:46,911 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:05:46,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-15 01:05:46,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-10-15 01:05:46,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-15 01:05:46,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-10-15 01:05:46,917 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 12 [2019-10-15 01:05:46,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:05:46,918 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-10-15 01:05:46,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:05:46,918 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-10-15 01:05:46,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-15 01:05:46,919 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:05:46,919 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:05:47,124 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:05:47,126 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:05:47,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:05:47,126 INFO L82 PathProgramCache]: Analyzing trace with hash 263802547, now seen corresponding path program 2 times [2019-10-15 01:05:47,127 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:05:47,127 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045523756] [2019-10-15 01:05:47,128 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:05:47,128 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:05:47,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:05:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:05:47,237 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-15 01:05:47,237 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045523756] [2019-10-15 01:05:47,237 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:05:47,238 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:05:47,238 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656582227] [2019-10-15 01:05:47,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:05:47,238 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:05:47,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:05:47,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:05:47,239 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 7 states. [2019-10-15 01:05:47,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:05:47,291 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-10-15 01:05:47,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:05:47,291 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-10-15 01:05:47,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:05:47,292 INFO L225 Difference]: With dead ends: 19 [2019-10-15 01:05:47,292 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:05:47,293 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:05:47,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:05:47,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:05:47,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:05:47,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:05:47,294 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-10-15 01:05:47,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:05:47,294 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:05:47,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:05:47,294 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:05:47,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:05:47,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:05:47,348 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-15 01:05:47,348 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:05:47,349 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:05:47,349 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:05:47,349 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:05:47,349 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:05:47,349 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 15) the Hoare annotation is: true [2019-10-15 01:05:47,349 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 15) no Hoare annotation was computed. [2019-10-15 01:05:47,350 INFO L443 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2019-10-15 01:05:47,350 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 15) no Hoare annotation was computed. [2019-10-15 01:05:47,350 INFO L443 ceAbstractionStarter]: For program point L12-2(line 12) no Hoare annotation was computed. [2019-10-15 01:05:47,350 INFO L439 ceAbstractionStarter]: At program point L12-3(line 12) the Hoare annotation is: (<= main_~i~0 1000000) [2019-10-15 01:05:47,351 INFO L439 ceAbstractionStarter]: At program point L12-4(line 12) the Hoare annotation is: (and (< 999999 main_~i~0) (<= main_~i~0 1000000)) [2019-10-15 01:05:47,351 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-15 01:05:47,351 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-15 01:05:47,351 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-15 01:05:47,351 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-15 01:05:47,352 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-15 01:05:47,352 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-15 01:05:47,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:05:47 BoogieIcfgContainer [2019-10-15 01:05:47,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:05:47,371 INFO L168 Benchmark]: Toolchain (without parser) took 1880.37 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 102.8 MB in the beginning and 107.3 MB in the end (delta: -4.5 MB). Peak memory consumption was 58.9 MB. Max. memory is 7.1 GB. [2019-10-15 01:05:47,372 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 121.7 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 01:05:47,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 208.57 ms. Allocated memory is still 138.4 MB. Free memory was 102.5 MB in the beginning and 93.6 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:05:47,374 INFO L168 Benchmark]: Boogie Preprocessor took 103.95 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 93.6 MB in the beginning and 180.2 MB in the end (delta: -86.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:05:47,375 INFO L168 Benchmark]: RCFGBuilder took 212.65 ms. Allocated memory is still 201.9 MB. Free memory was 180.2 MB in the beginning and 169.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:05:47,376 INFO L168 Benchmark]: TraceAbstraction took 1350.86 ms. Allocated memory is still 201.9 MB. Free memory was 169.3 MB in the beginning and 107.3 MB in the end (delta: 62.0 MB). Peak memory consumption was 62.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:05:47,381 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 121.7 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 208.57 ms. Allocated memory is still 138.4 MB. Free memory was 102.5 MB in the beginning and 93.6 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.95 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 93.6 MB in the beginning and 180.2 MB in the end (delta: -86.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 212.65 ms. Allocated memory is still 201.9 MB. Free memory was 180.2 MB in the beginning and 169.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1350.86 ms. Allocated memory is still 201.9 MB. Free memory was 169.3 MB in the beginning and 107.3 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: 5]: 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: 12]: Loop Invariant Derived loop invariant: i <= 1000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 45 SDtfs, 9 SDslu, 45 SDs, 0 SdLazy, 33 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 15 NumberOfFragments, 15 HoareAnnotationTreeSize, 10 FomulaSimplifications, 21 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 1302 SizeOfPredicates, 1 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 16/19 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...