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 -i ../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:15:44,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:15:44,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:15:44,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:15:44,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:15:44,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:15:44,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:15:44,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:15:44,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:15:44,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:15:44,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:15:44,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:15:44,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:15:44,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:15:44,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:15:44,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:15:44,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:15:44,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:15:44,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:15:44,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:15:44,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:15:44,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:15:44,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:15:44,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:15:44,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:15:44,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:15:44,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:15:44,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:15:44,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:15:44,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:15:44,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:15:44,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:15:44,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:15:44,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:15:44,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:15:44,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:15:44,336 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:15:44,359 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:15:44,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:15:44,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:15:44,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:15:44,363 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:15:44,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:15:44,363 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:15:44,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:15:44,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:15:44,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:15:44,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:15:44,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:15:44,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:15:44,366 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:15:44,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:15:44,366 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:15:44,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:15:44,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:15:44,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:15:44,367 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:15:44,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:15:44,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:15:44,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:15:44,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:15:44,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:15:44,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:15:44,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:15:44,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:15:44,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:15:44,625 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:15:44,646 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:15:44,650 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:15:44,651 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:15:44,651 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:15:44,652 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i [2019-10-14 23:15:44,725 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e217ca59c/fb4467b170de476e856d2c46203d10a3/FLAGb651b6ab0 [2019-10-14 23:15:45,198 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:15:45,198 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i [2019-10-14 23:15:45,204 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e217ca59c/fb4467b170de476e856d2c46203d10a3/FLAGb651b6ab0 [2019-10-14 23:15:45,580 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e217ca59c/fb4467b170de476e856d2c46203d10a3 [2019-10-14 23:15:45,591 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:15:45,592 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:15:45,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:15:45,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:15:45,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:15:45,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:15:45" (1/1) ... [2019-10-14 23:15:45,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@262ccb21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:45, skipping insertion in model container [2019-10-14 23:15:45,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:15:45" (1/1) ... [2019-10-14 23:15:45,608 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:15:45,626 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:15:45,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:15:45,902 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:15:45,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:15:45,933 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:15:45,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:45 WrapperNode [2019-10-14 23:15:45,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:15:45,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:15:45,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:15:45,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:15:46,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:45" (1/1) ... [2019-10-14 23:15:46,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:45" (1/1) ... [2019-10-14 23:15:46,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:45" (1/1) ... [2019-10-14 23:15:46,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:45" (1/1) ... [2019-10-14 23:15:46,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:45" (1/1) ... [2019-10-14 23:15:46,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:45" (1/1) ... [2019-10-14 23:15:46,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:45" (1/1) ... [2019-10-14 23:15:46,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:15:46,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:15:46,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:15:46,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:15:46,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:45" (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 [2019-10-14 23:15:46,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:15:46,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:15:46,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 23:15:46,152 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:15:46,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:15:46,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:15:46,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:15:46,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:15:46,153 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:15:46,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:15:46,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:15:46,358 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:15:46,358 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 23:15:46,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:15:46 BoogieIcfgContainer [2019-10-14 23:15:46,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:15:46,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:15:46,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:15:46,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:15:46,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:15:45" (1/3) ... [2019-10-14 23:15:46,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409856c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:15:46, skipping insertion in model container [2019-10-14 23:15:46,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:45" (2/3) ... [2019-10-14 23:15:46,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409856c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:15:46, skipping insertion in model container [2019-10-14 23:15:46,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:15:46" (3/3) ... [2019-10-14 23:15:46,368 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2019-10-14 23:15:46,379 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:15:46,387 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:15:46,403 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:15:46,444 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:15:46,444 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:15:46,445 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:15:46,445 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:15:46,445 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:15:46,446 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:15:46,446 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:15:46,446 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:15:46,469 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-10-14 23:15:46,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-14 23:15:46,477 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:46,478 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:46,480 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:46,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:46,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1772153714, now seen corresponding path program 1 times [2019-10-14 23:15:46,499 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:46,500 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084667535] [2019-10-14 23:15:46,500 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:46,500 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:46,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:46,891 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2019-10-14 23:15:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:47,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:47,013 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084667535] [2019-10-14 23:15:47,014 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:15:47,014 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:15:47,015 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761330232] [2019-10-14 23:15:47,020 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:15:47,020 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:47,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:15:47,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:15:47,039 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 7 states. [2019-10-14 23:15:47,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:47,294 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2019-10-14 23:15:47,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 23:15:47,297 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-10-14 23:15:47,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:47,308 INFO L225 Difference]: With dead ends: 47 [2019-10-14 23:15:47,308 INFO L226 Difference]: Without dead ends: 15 [2019-10-14 23:15:47,314 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:15:47,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-14 23:15:47,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-14 23:15:47,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-14 23:15:47,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-10-14 23:15:47,349 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2019-10-14 23:15:47,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:47,350 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-10-14 23:15:47,350 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:15:47,350 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-10-14 23:15:47,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-14 23:15:47,351 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:47,351 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:47,352 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:47,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:47,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1871056931, now seen corresponding path program 1 times [2019-10-14 23:15:47,353 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:47,353 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895682729] [2019-10-14 23:15:47,353 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:47,353 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:47,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:47,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:47,577 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895682729] [2019-10-14 23:15:47,577 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210961794] [2019-10-14 23:15:47,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:15:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:47,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 22 conjunts are in the unsatisfiable core [2019-10-14 23:15:47,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:15:47,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:47,767 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:15:47,767 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2019-10-14 23:15:47,770 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396241957] [2019-10-14 23:15:47,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-14 23:15:47,773 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:47,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-14 23:15:47,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:15:47,774 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 14 states. [2019-10-14 23:15:47,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:47,919 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2019-10-14 23:15:47,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 23:15:47,919 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 14 [2019-10-14 23:15:47,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:47,920 INFO L225 Difference]: With dead ends: 22 [2019-10-14 23:15:47,920 INFO L226 Difference]: Without dead ends: 16 [2019-10-14 23:15:47,922 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2019-10-14 23:15:47,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-14 23:15:47,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-10-14 23:15:47,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-14 23:15:47,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-10-14 23:15:47,930 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2019-10-14 23:15:47,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:47,931 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-10-14 23:15:47,931 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-14 23:15:47,931 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-10-14 23:15:47,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-14 23:15:47,933 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:47,934 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:48,139 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:15:48,140 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:48,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:48,140 INFO L82 PathProgramCache]: Analyzing trace with hash -642089362, now seen corresponding path program 2 times [2019-10-14 23:15:48,141 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:48,141 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067787116] [2019-10-14 23:15:48,141 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:48,142 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:48,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:48,367 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:48,367 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067787116] [2019-10-14 23:15:48,368 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174632765] [2019-10-14 23:15:48,368 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:15:48,411 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-14 23:15:48,412 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-14 23:15:48,413 WARN L254 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 28 conjunts are in the unsatisfiable core [2019-10-14 23:15:48,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:15:48,561 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:48,562 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:15:48,562 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2019-10-14 23:15:48,562 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004414880] [2019-10-14 23:15:48,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-14 23:15:48,564 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:48,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-14 23:15:48,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:15:48,566 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 16 states. [2019-10-14 23:15:48,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:48,775 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-10-14 23:15:48,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:15:48,776 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 15 [2019-10-14 23:15:48,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:48,777 INFO L225 Difference]: With dead ends: 26 [2019-10-14 23:15:48,778 INFO L226 Difference]: Without dead ends: 18 [2019-10-14 23:15:48,779 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2019-10-14 23:15:48,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-14 23:15:48,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-14 23:15:48,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-14 23:15:48,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-10-14 23:15:48,786 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2019-10-14 23:15:48,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:48,787 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-10-14 23:15:48,787 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-14 23:15:48,788 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-10-14 23:15:48,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-14 23:15:48,789 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:15:48,789 INFO L380 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:15:48,993 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:15:48,993 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:15:48,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:15:48,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1276972978, now seen corresponding path program 3 times [2019-10-14 23:15:48,994 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:15:48,994 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516165330] [2019-10-14 23:15:48,995 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:48,995 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:15:48,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:15:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:49,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:15:49,223 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:15:49,223 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516165330] [2019-10-14 23:15:49,224 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475186921] [2019-10-14 23:15:49,224 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:15:49,272 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-14 23:15:49,273 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-14 23:15:49,274 WARN L254 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 40 conjunts are in the unsatisfiable core [2019-10-14 23:15:49,276 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:15:49,441 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:15:49,441 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:15:49,441 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2019-10-14 23:15:49,441 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322250528] [2019-10-14 23:15:49,442 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-14 23:15:49,442 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:15:49,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-14 23:15:49,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2019-10-14 23:15:49,443 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 19 states. [2019-10-14 23:15:49,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:15:49,614 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-10-14 23:15:49,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-14 23:15:49,615 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 17 [2019-10-14 23:15:49,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:15:49,615 INFO L225 Difference]: With dead ends: 21 [2019-10-14 23:15:49,616 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:15:49,617 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2019-10-14 23:15:49,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:15:49,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:15:49,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:15:49,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:15:49,618 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-10-14 23:15:49,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:15:49,618 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:15:49,618 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-14 23:15:49,618 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:15:49,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:15:49,822 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:15:49,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:15:49,914 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-14 23:15:49,914 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:15:49,915 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:15:49,915 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-14 23:15:49,915 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:15:49,915 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:15:49,915 INFO L439 ceAbstractionStarter]: At program point L25(line 25) the Hoare annotation is: (let ((.cse0 (+ main_~y~0 main_~z~0))) (and (<= .cse0 0) (<= 0 .cse0))) [2019-10-14 23:15:49,915 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 28) no Hoare annotation was computed. [2019-10-14 23:15:49,915 INFO L439 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: (let ((.cse1 (+ main_~i~0 main_~y~0 main_~z~0)) (.cse0 (+ main_~x~0 main_~j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2019-10-14 23:15:49,915 INFO L443 ceAbstractionStarter]: For program point L19-3(lines 10 28) no Hoare annotation was computed. [2019-10-14 23:15:49,916 INFO L443 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-10-14 23:15:49,916 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 28) no Hoare annotation was computed. [2019-10-14 23:15:49,916 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 28) the Hoare annotation is: true [2019-10-14 23:15:49,916 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2019-10-14 23:15:49,916 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-10-14 23:15:49,916 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-14 23:15:49,916 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-14 23:15:49,916 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-14 23:15:49,917 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-14 23:15:49,917 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-14 23:15:49,917 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-14 23:15:49,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:15:49 BoogieIcfgContainer [2019-10-14 23:15:49,928 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:15:49,930 INFO L168 Benchmark]: Toolchain (without parser) took 4338.02 ms. Allocated memory was 138.9 MB in the beginning and 243.8 MB in the end (delta: 104.9 MB). Free memory was 102.3 MB in the beginning and 152.0 MB in the end (delta: -49.7 MB). Peak memory consumption was 55.1 MB. Max. memory is 7.1 GB. [2019-10-14 23:15:49,931 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 138.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-14 23:15:49,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.18 ms. Allocated memory is still 138.9 MB. Free memory was 102.1 MB in the beginning and 92.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-14 23:15:49,933 INFO L168 Benchmark]: Boogie Preprocessor took 148.91 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 92.7 MB in the beginning and 181.9 MB in the end (delta: -89.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-10-14 23:15:49,934 INFO L168 Benchmark]: RCFGBuilder took 276.04 ms. Allocated memory is still 203.4 MB. Free memory was 181.9 MB in the beginning and 170.1 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:15:49,935 INFO L168 Benchmark]: TraceAbstraction took 3567.19 ms. Allocated memory was 203.4 MB in the beginning and 243.8 MB in the end (delta: 40.4 MB). Free memory was 169.5 MB in the beginning and 152.0 MB in the end (delta: 17.5 MB). Peak memory consumption was 57.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:15:49,939 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 138.9 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 341.18 ms. Allocated memory is still 138.9 MB. Free memory was 102.1 MB in the beginning and 92.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 148.91 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 92.7 MB in the beginning and 181.9 MB in the end (delta: -89.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 276.04 ms. Allocated memory is still 203.4 MB. Free memory was 181.9 MB in the beginning and 170.1 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3567.19 ms. Allocated memory was 203.4 MB in the beginning and 243.8 MB in the end (delta: 40.4 MB). Free memory was 169.5 MB in the beginning and 152.0 MB in the end (delta: 17.5 MB). Peak memory consumption was 57.8 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: 19]: Loop Invariant Derived loop invariant: x + j <= i + y + z && i + y + z <= x + j - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. Result: SAFE, OverallTime: 3.4s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 45 SDslu, 281 SDs, 0 SdLazy, 286 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 13 PreInvPairs, 24 NumberOfFragments, 33 HoareAnnotationTreeSize, 13 FomulaSimplifications, 61 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 191 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 9619 SizeOfPredicates, 15 NumberOfNonLiveVariables, 169 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 1/28 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...