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-f4eb214f-m [2019-10-13 19:16:43,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:16:43,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:16:43,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:16:43,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:16:43,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:16:43,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:16:43,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:16:43,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:16:43,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:16:43,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:16:43,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:16:43,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:16:43,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:16:43,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:16:43,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:16:43,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:16:43,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:16:43,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:16:43,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:16:43,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:16:43,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:16:43,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:16:43,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:16:43,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 19:16:43,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:16:43,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:16:43,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:16:43,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:16:43,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:16:43,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:16:43,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:16:43,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:16:43,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:16:43,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:16:43,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:16:43,295 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:16:43,314 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:16:43,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:16:43,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:16:43,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:16:43,316 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:16:43,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:16:43,317 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:16:43,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:16:43,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:16:43,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:16:43,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:16:43,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:16:43,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:16:43,319 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:16:43,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:16:43,320 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:16:43,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:16:43,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:16:43,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:16:43,320 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:16:43,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:16:43,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:16:43,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:16:43,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:16:43,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:16:43,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:16:43,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:16:43,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:16:43,323 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:16:43,598 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:16:43,610 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:16:43,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:16:43,615 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:16:43,616 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:16:43,616 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i [2019-10-13 19:16:43,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56ee21936/04638d76b62c4bfba20059b7ae407b75/FLAG1d777c7c1 [2019-10-13 19:16:44,131 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:16:44,134 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i [2019-10-13 19:16:44,140 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56ee21936/04638d76b62c4bfba20059b7ae407b75/FLAG1d777c7c1 [2019-10-13 19:16:44,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56ee21936/04638d76b62c4bfba20059b7ae407b75 [2019-10-13 19:16:44,505 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:16:44,507 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:16:44,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:16:44,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:16:44,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:16:44,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:16:44" (1/1) ... [2019-10-13 19:16:44,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39fb0a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:44, skipping insertion in model container [2019-10-13 19:16:44,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:16:44" (1/1) ... [2019-10-13 19:16:44,523 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:16:44,539 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:16:44,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:16:44,712 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:16:44,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:16:44,742 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:16:44,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:44 WrapperNode [2019-10-13 19:16:44,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:16:44,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:16:44,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:16:44,744 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:16:44,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:44" (1/1) ... [2019-10-13 19:16:44,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:44" (1/1) ... [2019-10-13 19:16:44,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:44" (1/1) ... [2019-10-13 19:16:44,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:44" (1/1) ... [2019-10-13 19:16:44,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:44" (1/1) ... [2019-10-13 19:16:44,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:44" (1/1) ... [2019-10-13 19:16:44,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:44" (1/1) ... [2019-10-13 19:16:44,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:16:44,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:16:44,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:16:44,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:16:44,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:16:44,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:16:44,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:16:44,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:16:44,909 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:16:44,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:16:44,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:16:44,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:16:44,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:16:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:16:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:16:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:16:45,111 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:16:45,111 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 19:16:45,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:16:45 BoogieIcfgContainer [2019-10-13 19:16:45,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:16:45,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:16:45,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:16:45,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:16:45,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:16:44" (1/3) ... [2019-10-13 19:16:45,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@268165c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:16:45, skipping insertion in model container [2019-10-13 19:16:45,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:44" (2/3) ... [2019-10-13 19:16:45,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@268165c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:16:45, skipping insertion in model container [2019-10-13 19:16:45,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:16:45" (3/3) ... [2019-10-13 19:16:45,138 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2019-10-13 19:16:45,169 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:16:45,187 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:16:45,214 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:16:45,253 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:16:45,254 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:16:45,254 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:16:45,254 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:16:45,254 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:16:45,254 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:16:45,254 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:16:45,255 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:16:45,273 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-10-13 19:16:45,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-13 19:16:45,280 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:16:45,281 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:16:45,282 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:16:45,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:16:45,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1772153714, now seen corresponding path program 1 times [2019-10-13 19:16:45,295 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:16:45,296 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626424747] [2019-10-13 19:16:45,296 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:45,296 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:45,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:16:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:45,641 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 21 [2019-10-13 19:16:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:45,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:16:45,775 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626424747] [2019-10-13 19:16:45,776 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:16:45,776 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:16:45,777 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802881603] [2019-10-13 19:16:45,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:16:45,782 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:16:45,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:16:45,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:16:45,799 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 7 states. [2019-10-13 19:16:46,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:16:46,066 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2019-10-13 19:16:46,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 19:16:46,069 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-10-13 19:16:46,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:16:46,081 INFO L225 Difference]: With dead ends: 47 [2019-10-13 19:16:46,081 INFO L226 Difference]: Without dead ends: 15 [2019-10-13 19:16:46,087 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 [2019-10-13 19:16:46,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-13 19:16:46,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-13 19:16:46,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-13 19:16:46,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-10-13 19:16:46,128 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2019-10-13 19:16:46,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:16:46,128 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-10-13 19:16:46,129 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:16:46,129 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-10-13 19:16:46,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 19:16:46,130 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:16:46,130 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:16:46,131 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:16:46,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:16:46,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1871056931, now seen corresponding path program 1 times [2019-10-13 19:16:46,132 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:16:46,132 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717713464] [2019-10-13 19:16:46,132 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:46,132 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:46,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:16:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:46,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:16:46,320 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717713464] [2019-10-13 19:16:46,320 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020966029] [2019-10-13 19:16:46,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:16:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:46,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 22 conjunts are in the unsatisfiable core [2019-10-13 19:16:46,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:16:46,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:16:46,514 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 19:16:46,514 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2019-10-13 19:16:46,515 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318778139] [2019-10-13 19:16:46,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 19:16:46,517 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:16:46,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 19:16:46,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:16:46,520 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 14 states. [2019-10-13 19:16:46,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:16:46,667 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2019-10-13 19:16:46,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 19:16:46,668 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 14 [2019-10-13 19:16:46,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:16:46,669 INFO L225 Difference]: With dead ends: 22 [2019-10-13 19:16:46,669 INFO L226 Difference]: Without dead ends: 16 [2019-10-13 19:16:46,670 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2019-10-13 19:16:46,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-13 19:16:46,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-10-13 19:16:46,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-13 19:16:46,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-10-13 19:16:46,681 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2019-10-13 19:16:46,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:16:46,683 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-10-13 19:16:46,683 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 19:16:46,684 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-10-13 19:16:46,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-13 19:16:46,686 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:16:46,686 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:16:46,900 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:16:46,901 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:16:46,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:16:46,901 INFO L82 PathProgramCache]: Analyzing trace with hash -642089362, now seen corresponding path program 2 times [2019-10-13 19:16:46,902 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:16:46,902 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140909802] [2019-10-13 19:16:46,902 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:46,902 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:46,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:16:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:47,145 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:16:47,145 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140909802] [2019-10-13 19:16:47,145 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375172559] [2019-10-13 19:16:47,146 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 [2019-10-13 19:16:47,179 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-13 19:16:47,179 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 19:16:47,180 WARN L254 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 28 conjunts are in the unsatisfiable core [2019-10-13 19:16:47,182 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:16:47,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:16:47,320 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 19:16:47,320 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2019-10-13 19:16:47,321 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315434906] [2019-10-13 19:16:47,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 19:16:47,322 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:16:47,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 19:16:47,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2019-10-13 19:16:47,323 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 16 states. [2019-10-13 19:16:47,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:16:47,499 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-10-13 19:16:47,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:16:47,500 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 15 [2019-10-13 19:16:47,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:16:47,500 INFO L225 Difference]: With dead ends: 26 [2019-10-13 19:16:47,501 INFO L226 Difference]: Without dead ends: 18 [2019-10-13 19:16:47,502 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 [2019-10-13 19:16:47,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-13 19:16:47,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-13 19:16:47,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-13 19:16:47,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-10-13 19:16:47,508 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2019-10-13 19:16:47,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:16:47,508 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-10-13 19:16:47,508 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 19:16:47,509 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-10-13 19:16:47,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-13 19:16:47,509 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:16:47,509 INFO L380 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:16:47,712 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:16:47,713 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:16:47,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:16:47,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1276972978, now seen corresponding path program 3 times [2019-10-13 19:16:47,714 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:16:47,715 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753666099] [2019-10-13 19:16:47,715 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:47,716 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:47,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:16:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:47,949 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:16:47,949 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753666099] [2019-10-13 19:16:47,950 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290925440] [2019-10-13 19:16:47,950 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 [2019-10-13 19:16:48,007 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-13 19:16:48,007 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 19:16:48,015 WARN L254 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 40 conjunts are in the unsatisfiable core [2019-10-13 19:16:48,017 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:16:48,171 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:16:48,171 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 19:16:48,171 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2019-10-13 19:16:48,171 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515195311] [2019-10-13 19:16:48,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 19:16:48,172 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:16:48,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 19:16:48,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2019-10-13 19:16:48,173 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 19 states. [2019-10-13 19:16:48,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:16:48,346 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-10-13 19:16:48,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 19:16:48,347 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 17 [2019-10-13 19:16:48,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:16:48,348 INFO L225 Difference]: With dead ends: 21 [2019-10-13 19:16:48,348 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:16:48,349 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2019-10-13 19:16:48,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:16:48,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:16:48,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:16:48,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:16:48,350 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-10-13 19:16:48,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:16:48,350 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:16:48,350 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 19:16:48,350 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:16:48,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:16:48,551 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:16:48,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:16:48,649 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-13 19:16:48,649 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:16:48,649 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:16:48,650 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:16:48,650 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:16:48,650 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:16:48,650 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))) [2019-10-13 19:16:48,650 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 28) no Hoare annotation was computed. [2019-10-13 19:16:48,651 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))) [2019-10-13 19:16:48,651 INFO L443 ceAbstractionStarter]: For program point L19-3(lines 10 28) no Hoare annotation was computed. [2019-10-13 19:16:48,651 INFO L443 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-10-13 19:16:48,651 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 28) no Hoare annotation was computed. [2019-10-13 19:16:48,651 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 28) the Hoare annotation is: true [2019-10-13 19:16:48,651 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2019-10-13 19:16:48,651 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-10-13 19:16:48,652 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-13 19:16:48,652 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-13 19:16:48,652 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-13 19:16:48,652 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-13 19:16:48,652 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-13 19:16:48,652 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-13 19:16:48,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:16:48 BoogieIcfgContainer [2019-10-13 19:16:48,667 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:16:48,669 INFO L168 Benchmark]: Toolchain (without parser) took 4161.94 ms. Allocated memory was 137.4 MB in the beginning and 249.6 MB in the end (delta: 112.2 MB). Free memory was 102.8 MB in the beginning and 163.8 MB in the end (delta: -60.9 MB). Peak memory consumption was 51.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:16:48,670 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-13 19:16:48,670 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.70 ms. Allocated memory is still 137.4 MB. Free memory was 102.6 MB in the beginning and 93.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-13 19:16:48,671 INFO L168 Benchmark]: Boogie Preprocessor took 104.07 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 93.2 MB in the beginning and 181.6 MB in the end (delta: -88.4 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2019-10-13 19:16:48,672 INFO L168 Benchmark]: RCFGBuilder took 265.06 ms. Allocated memory is still 201.3 MB. Free memory was 181.6 MB in the beginning and 169.1 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2019-10-13 19:16:48,673 INFO L168 Benchmark]: TraceAbstraction took 3552.53 ms. Allocated memory was 201.3 MB in the beginning and 249.6 MB in the end (delta: 48.2 MB). Free memory was 168.4 MB in the beginning and 163.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2019-10-13 19:16:48,677 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 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 235.70 ms. Allocated memory is still 137.4 MB. Free memory was 102.6 MB in the beginning and 93.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.07 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 93.2 MB in the beginning and 181.6 MB in the end (delta: -88.4 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 265.06 ms. Allocated memory is still 201.3 MB. Free memory was 181.6 MB in the beginning and 169.1 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3552.53 ms. Allocated memory was 201.3 MB in the beginning and 249.6 MB in the end (delta: 48.2 MB). Free memory was 168.4 MB in the beginning and 163.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 52.9 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, 1.4s 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...