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/cggmp2005_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:16:30,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:16:30,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:16:30,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:16:30,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:16:30,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:16:30,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:16:30,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:16:30,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:16:30,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:16:30,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:16:30,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:16:30,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:16:30,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:16:30,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:16:30,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:16:30,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:16:30,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:16:30,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:16:30,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:16:30,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:16:30,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:16:30,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:16:30,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:16:30,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 19:16:30,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:16:30,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:16:30,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:16:30,428 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 19:16:30,451 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:16:30,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:16:30,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:16:30,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:16:30,453 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:16:30,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:16:30,453 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:16:30,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:16:30,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:16:30,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:16:30,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:16:30,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:16:30,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:16:30,454 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:16:30,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:16:30,455 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:16:30,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:16:30,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:16:30,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:16:30,456 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:16:30,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:16:30,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:16:30,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:16:30,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:16:30,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:16:30,457 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:16:30,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:16:30,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:16:30,457 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:16:30,757 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:16:30,781 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:16:30,785 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:16:30,787 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:16:30,787 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:16:30,788 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i [2019-10-13 19:16:30,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c5f0d24d/d5f4d75a84384b98a7ec4d3a82fad416/FLAG1d40c30ac [2019-10-13 19:16:31,326 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:16:31,326 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005_variant.i [2019-10-13 19:16:31,333 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c5f0d24d/d5f4d75a84384b98a7ec4d3a82fad416/FLAG1d40c30ac [2019-10-13 19:16:31,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c5f0d24d/d5f4d75a84384b98a7ec4d3a82fad416 [2019-10-13 19:16:31,713 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:16:31,715 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:16:31,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:16:31,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:16:31,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:16:31,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:16:31" (1/1) ... [2019-10-13 19:16:31,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@96ffd6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:31, skipping insertion in model container [2019-10-13 19:16:31,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:16:31" (1/1) ... [2019-10-13 19:16:31,732 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:16:31,749 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:16:31,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:16:31,927 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:16:31,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:16:31,959 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:16:31,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:31 WrapperNode [2019-10-13 19:16:31,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:16:31,960 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:16:31,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:16:31,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:16:31,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:31" (1/1) ... [2019-10-13 19:16:31,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:31" (1/1) ... [2019-10-13 19:16:32,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:31" (1/1) ... [2019-10-13 19:16:32,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:31" (1/1) ... [2019-10-13 19:16:32,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:31" (1/1) ... [2019-10-13 19:16:32,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:31" (1/1) ... [2019-10-13 19:16:32,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:31" (1/1) ... [2019-10-13 19:16:32,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:16:32,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:16:32,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:16:32,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:16:32,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:31" (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 19:16:32,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:16:32,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:16:32,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:16:32,129 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:16:32,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:16:32,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:16:32,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:16:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:16:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:16:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:16:32,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:16:32,298 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:16:32,299 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 19:16:32,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:16:32 BoogieIcfgContainer [2019-10-13 19:16:32,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:16:32,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:16:32,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:16:32,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:16:32,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:16:31" (1/3) ... [2019-10-13 19:16:32,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a8cca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:16:32, skipping insertion in model container [2019-10-13 19:16:32,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:31" (2/3) ... [2019-10-13 19:16:32,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a8cca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:16:32, skipping insertion in model container [2019-10-13 19:16:32,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:16:32" (3/3) ... [2019-10-13 19:16:32,310 INFO L109 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant.i [2019-10-13 19:16:32,320 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:16:32,328 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:16:32,338 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:16:32,362 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:16:32,363 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:16:32,363 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:16:32,363 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:16:32,363 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:16:32,363 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:16:32,363 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:16:32,364 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:16:32,382 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-10-13 19:16:32,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-13 19:16:32,389 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:16:32,390 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:16:32,392 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:16:32,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:16:32,398 INFO L82 PathProgramCache]: Analyzing trace with hash 578729635, now seen corresponding path program 1 times [2019-10-13 19:16:32,407 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:16:32,408 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648873967] [2019-10-13 19:16:32,408 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:32,408 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:32,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:16:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:32,514 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 19:16:32,514 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648873967] [2019-10-13 19:16:32,515 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:16:32,515 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 19:16:32,516 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955892326] [2019-10-13 19:16:32,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:16:32,520 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:16:32,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:16:32,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:16:32,533 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-10-13 19:16:32,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:16:32,552 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2019-10-13 19:16:32,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:16:32,554 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-10-13 19:16:32,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:16:32,562 INFO L225 Difference]: With dead ends: 31 [2019-10-13 19:16:32,563 INFO L226 Difference]: Without dead ends: 12 [2019-10-13 19:16:32,567 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:16:32,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-10-13 19:16:32,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-10-13 19:16:32,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-13 19:16:32,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-10-13 19:16:32,606 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 11 [2019-10-13 19:16:32,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:16:32,606 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-10-13 19:16:32,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:16:32,607 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-10-13 19:16:32,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-13 19:16:32,607 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:16:32,608 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:16:32,608 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:16:32,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:16:32,608 INFO L82 PathProgramCache]: Analyzing trace with hash 575035551, now seen corresponding path program 1 times [2019-10-13 19:16:32,609 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:16:32,609 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963375380] [2019-10-13 19:16:32,609 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:32,609 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:32,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:16:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:32,656 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 19:16:32,656 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963375380] [2019-10-13 19:16:32,657 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:16:32,657 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:16:32,657 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129617397] [2019-10-13 19:16:32,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:16:32,659 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:16:32,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:16:32,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:16:32,660 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2019-10-13 19:16:32,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:16:32,680 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-10-13 19:16:32,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:16:32,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-10-13 19:16:32,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:16:32,681 INFO L225 Difference]: With dead ends: 18 [2019-10-13 19:16:32,682 INFO L226 Difference]: Without dead ends: 13 [2019-10-13 19:16:32,683 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:16:32,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-10-13 19:16:32,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-10-13 19:16:32,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-13 19:16:32,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-10-13 19:16:32,687 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2019-10-13 19:16:32,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:16:32,687 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-10-13 19:16:32,687 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:16:32,688 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-10-13 19:16:32,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-13 19:16:32,688 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:16:32,688 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:16:32,689 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:16:32,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:16:32,689 INFO L82 PathProgramCache]: Analyzing trace with hash 681770644, now seen corresponding path program 1 times [2019-10-13 19:16:32,690 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:16:32,690 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176254718] [2019-10-13 19:16:32,690 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:32,690 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:32,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:16:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:33,020 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 19:16:33,020 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176254718] [2019-10-13 19:16:33,021 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966881598] [2019-10-13 19:16:33,024 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 19:16:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:33,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 17 conjunts are in the unsatisfiable core [2019-10-13 19:16:33,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:16:33,207 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 19:16:33,265 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 19:16:33,266 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 19:16:33,267 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2019-10-13 19:16:33,268 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124141378] [2019-10-13 19:16:33,268 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:16:33,269 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:16:33,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:16:33,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:16:33,270 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 13 states. [2019-10-13 19:16:33,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:16:33,373 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-10-13 19:16:33,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 19:16:33,374 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 12 [2019-10-13 19:16:33,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:16:33,375 INFO L225 Difference]: With dead ends: 19 [2019-10-13 19:16:33,375 INFO L226 Difference]: Without dead ends: 14 [2019-10-13 19:16:33,376 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-10-13 19:16:33,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-13 19:16:33,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-10-13 19:16:33,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-13 19:16:33,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-10-13 19:16:33,381 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2019-10-13 19:16:33,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:16:33,381 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-10-13 19:16:33,381 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 19:16:33,382 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-10-13 19:16:33,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-13 19:16:33,382 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:16:33,383 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:16:33,583 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:16:33,584 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:16:33,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:16:33,584 INFO L82 PathProgramCache]: Analyzing trace with hash -304408769, now seen corresponding path program 2 times [2019-10-13 19:16:33,585 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:16:33,585 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374041402] [2019-10-13 19:16:33,585 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:33,585 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:16:33,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:16:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:16:33,733 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:16:33,733 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374041402] [2019-10-13 19:16:33,734 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316495206] [2019-10-13 19:16:33,734 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 19:16:33,784 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-13 19:16:33,784 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 19:16:33,785 WARN L254 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 23 conjunts are in the unsatisfiable core [2019-10-13 19:16:33,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:16:33,920 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 19:16:33,960 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 19:16:33,960 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 19:16:33,960 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14 [2019-10-13 19:16:33,961 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261649737] [2019-10-13 19:16:33,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 19:16:33,962 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:16:33,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 19:16:33,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:16:33,963 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 14 states. [2019-10-13 19:16:34,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:16:34,217 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-10-13 19:16:34,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:16:34,217 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 13 [2019-10-13 19:16:34,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:16:34,218 INFO L225 Difference]: With dead ends: 16 [2019-10-13 19:16:34,218 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:16:34,220 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2019-10-13 19:16:34,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:16:34,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:16:34,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:16:34,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:16:34,221 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-10-13 19:16:34,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:16:34,222 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:16:34,222 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 19:16:34,222 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:16:34,222 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:16:34,423 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:16:34,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:16:34,579 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-13 19:16:34,580 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:16:34,580 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:16:34,580 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:16:34,580 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:16:34,580 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:16:34,580 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 23) the Hoare annotation is: true [2019-10-13 19:16:34,581 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 23) no Hoare annotation was computed. [2019-10-13 19:16:34,581 INFO L443 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2019-10-13 19:16:34,581 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-10-13 19:16:34,581 INFO L439 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (let ((.cse0 (+ (* 2 main_~mid~0) main_~lo~0))) (and (<= .cse0 main_~hi~0) (<= main_~hi~0 .cse0) (<= main_~lo~0 main_~hi~0))) [2019-10-13 19:16:34,582 INFO L439 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (or (let ((.cse1 (+ main_~hi~0 1))) (let ((.cse0 (div .cse1 2))) (and (<= main_~lo~0 1) (<= .cse0 (+ main_~mid~0 1)) (<= .cse0 1) (<= 1 main_~lo~0) (= 0 (mod .cse1 2)) (< 0 .cse0)))) (let ((.cse2 (+ (* 2 main_~mid~0) main_~lo~0))) (and (<= .cse2 main_~hi~0) (<= main_~hi~0 main_~lo~0) (<= main_~hi~0 .cse2) (<= main_~lo~0 main_~hi~0)))) [2019-10-13 19:16:34,582 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 23) no Hoare annotation was computed. [2019-10-13 19:16:34,582 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-13 19:16:34,582 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-13 19:16:34,582 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-13 19:16:34,582 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-13 19:16:34,583 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-13 19:16:34,583 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-13 19:16:34,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:16:34 BoogieIcfgContainer [2019-10-13 19:16:34,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:16:34,601 INFO L168 Benchmark]: Toolchain (without parser) took 2884.79 ms. Allocated memory was 137.9 MB in the beginning and 233.3 MB in the end (delta: 95.4 MB). Free memory was 102.2 MB in the beginning and 138.8 MB in the end (delta: -36.6 MB). Peak memory consumption was 58.8 MB. Max. memory is 7.1 GB. [2019-10-13 19:16:34,602 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 137.9 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 19:16:34,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.85 ms. Allocated memory is still 137.9 MB. Free memory was 102.0 MB in the beginning and 92.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-13 19:16:34,604 INFO L168 Benchmark]: Boogie Preprocessor took 117.83 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 92.4 MB in the beginning and 180.8 MB in the end (delta: -88.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2019-10-13 19:16:34,605 INFO L168 Benchmark]: RCFGBuilder took 222.65 ms. Allocated memory is still 201.3 MB. Free memory was 180.1 MB in the beginning and 169.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:16:34,606 INFO L168 Benchmark]: TraceAbstraction took 2295.59 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 169.1 MB in the beginning and 138.8 MB in the end (delta: 30.3 MB). Peak memory consumption was 62.3 MB. Max. memory is 7.1 GB. [2019-10-13 19:16:34,611 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 137.9 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 243.85 ms. Allocated memory is still 137.9 MB. Free memory was 102.0 MB in the beginning and 92.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.83 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 92.4 MB in the beginning and 180.8 MB in the end (delta: -88.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 222.65 ms. Allocated memory is still 201.3 MB. Free memory was 180.1 MB in the beginning and 169.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2295.59 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 169.1 MB in the beginning and 138.8 MB in the end (delta: 30.3 MB). Peak memory consumption was 62.3 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: 16]: Loop Invariant Derived loop invariant: (2 * mid + lo <= hi && hi <= 2 * mid + lo) && lo <= hi - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 47 SDtfs, 11 SDslu, 101 SDs, 0 SdLazy, 87 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 17 NumberOfFragments, 82 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 119 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 3818 SizeOfPredicates, 6 NumberOfNonLiveVariables, 81 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 1/8 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...