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-new/count_by_1_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-0883e75 [2019-09-05 12:03:49,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-05 12:03:49,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-05 12:03:49,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-05 12:03:49,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-05 12:03:49,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-05 12:03:49,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-05 12:03:49,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-05 12:03:49,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-05 12:03:49,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-05 12:03:49,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-05 12:03:49,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-05 12:03:49,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-05 12:03:49,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-05 12:03:49,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-05 12:03:49,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-05 12:03:49,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-05 12:03:49,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-05 12:03:49,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-05 12:03:49,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-05 12:03:49,543 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 [2019-09-05 12:03:49,558 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-05 12:03:49,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-05 12:03:49,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-05 12:03:49,560 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-05 12:03:49,560 INFO L138 SettingsManager]: * Use SBE=true [2019-09-05 12:03:49,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-05 12:03:49,560 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-05 12:03:49,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-05 12:03:49,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-05 12:03:49,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-05 12:03:49,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-05 12:03:49,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-05 12:03:49,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-05 12:03:49,562 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-05 12:03:49,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-05 12:03:49,562 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-05 12:03:49,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-05 12:03:49,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-05 12:03:49,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-05 12:03:49,563 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-05 12:03:49,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-05 12:03:49,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-05 12:03:49,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-05 12:03:49,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-05 12:03:49,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-05 12:03:49,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-05 12:03:49,564 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-05 12:03:49,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-05 12:03:49,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-05 12:03:49,597 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-05 12:03:49,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-05 12:03:49,616 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-05 12:03:49,621 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-05 12:03:49,621 INFO L275 PluginConnector]: CDTParser initialized [2019-09-05 12:03:49,622 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_1_variant.i [2019-09-05 12:03:49,689 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4940841a7/19610d5d9f0f445c9e7367903a52edfe/FLAG447f5e5ae [2019-09-05 12:03:50,072 INFO L306 CDTParser]: Found 1 translation units. [2019-09-05 12:03:50,073 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_variant.i [2019-09-05 12:03:50,079 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4940841a7/19610d5d9f0f445c9e7367903a52edfe/FLAG447f5e5ae [2019-09-05 12:03:50,095 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4940841a7/19610d5d9f0f445c9e7367903a52edfe [2019-09-05 12:03:50,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-05 12:03:50,106 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-05 12:03:50,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-05 12:03:50,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-05 12:03:50,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-05 12:03:50,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 12:03:50" (1/1) ... [2019-09-05 12:03:50,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5651b4e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:50, skipping insertion in model container [2019-09-05 12:03:50,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 12:03:50" (1/1) ... [2019-09-05 12:03:50,122 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-05 12:03:50,135 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-05 12:03:50,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 12:03:50,272 INFO L188 MainTranslator]: Completed pre-run [2019-09-05 12:03:50,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 12:03:50,296 INFO L192 MainTranslator]: Completed translation [2019-09-05 12:03:50,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:50 WrapperNode [2019-09-05 12:03:50,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-05 12:03:50,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-05 12:03:50,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-05 12:03:50,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-05 12:03:50,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:50" (1/1) ... [2019-09-05 12:03:50,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:50" (1/1) ... [2019-09-05 12:03:50,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:50" (1/1) ... [2019-09-05 12:03:50,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:50" (1/1) ... [2019-09-05 12:03:50,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:50" (1/1) ... [2019-09-05 12:03:50,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:50" (1/1) ... [2019-09-05 12:03:50,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:50" (1/1) ... [2019-09-05 12:03:50,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-05 12:03:50,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-05 12:03:50,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-05 12:03:50,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-05 12:03:50,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:50" (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 [2019-09-05 12:03:50,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-05 12:03:50,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-05 12:03:50,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-05 12:03:50,476 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-05 12:03:50,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-05 12:03:50,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-05 12:03:50,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-05 12:03:50,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-05 12:03:50,477 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-05 12:03:50,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-05 12:03:50,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-05 12:03:50,657 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-05 12:03:50,657 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-05 12:03:50,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 12:03:50 BoogieIcfgContainer [2019-09-05 12:03:50,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-05 12:03:50,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-05 12:03:50,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-05 12:03:50,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-05 12:03:50,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.09 12:03:50" (1/3) ... [2019-09-05 12:03:50,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@978a194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.09 12:03:50, skipping insertion in model container [2019-09-05 12:03:50,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:03:50" (2/3) ... [2019-09-05 12:03:50,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@978a194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.09 12:03:50, skipping insertion in model container [2019-09-05 12:03:50,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 12:03:50" (3/3) ... [2019-09-05 12:03:50,667 INFO L109 eAbstractionObserver]: Analyzing ICFG count_by_1_variant.i [2019-09-05 12:03:50,676 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-05 12:03:50,685 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-05 12:03:50,703 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-05 12:03:50,733 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-05 12:03:50,733 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-05 12:03:50,733 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-05 12:03:50,734 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-05 12:03:50,734 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-05 12:03:50,734 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-05 12:03:50,734 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-05 12:03:50,734 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-05 12:03:50,735 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-05 12:03:50,753 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-09-05 12:03:50,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-05 12:03:50,759 INFO L391 BasicCegarLoop]: Found error trace [2019-09-05 12:03:50,760 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-05 12:03:50,762 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-05 12:03:50,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-05 12:03:50,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1875203651, now seen corresponding path program 1 times [2019-09-05 12:03:50,770 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-05 12:03:50,770 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-05 12:03:50,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:03:50,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 12:03:50,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:03:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 12:03:51,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-05 12:03:51,038 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-05 12:03:51,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-05 12:03:51,050 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-05 12:03:51,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-05 12:03:51,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-05 12:03:51,090 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 5 states. [2019-09-05 12:03:51,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-05 12:03:51,186 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2019-09-05 12:03:51,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-05 12:03:51,187 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-09-05 12:03:51,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-05 12:03:51,196 INFO L225 Difference]: With dead ends: 40 [2019-09-05 12:03:51,196 INFO L226 Difference]: Without dead ends: 21 [2019-09-05 12:03:51,199 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-05 12:03:51,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-09-05 12:03:51,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2019-09-05 12:03:51,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-09-05 12:03:51,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-09-05 12:03:51,239 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 10 [2019-09-05 12:03:51,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-05 12:03:51,239 INFO L475 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-09-05 12:03:51,240 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-05 12:03:51,240 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-09-05 12:03:51,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-05 12:03:51,241 INFO L391 BasicCegarLoop]: Found error trace [2019-09-05 12:03:51,241 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-05 12:03:51,241 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-05 12:03:51,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-05 12:03:51,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1632080392, now seen corresponding path program 1 times [2019-09-05 12:03:51,242 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-05 12:03:51,242 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-05 12:03:51,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:03:51,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 12:03:51,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:03:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 12:03:51,331 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-05 12:03:51,332 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-05 12:03:51,332 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-05 12:03:51,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-05 12:03:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 12:03:51,390 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-05 12:03:51,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-05 12:03:51,435 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-05 12:03:51,473 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-05 12:03:51,478 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-05 12:03:51,479 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2019-09-05 12:03:51,480 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-05 12:03:51,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-05 12:03:51,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-09-05 12:03:51,481 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 8 states. [2019-09-05 12:03:51,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-05 12:03:51,574 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2019-09-05 12:03:51,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-05 12:03:51,577 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-09-05 12:03:51,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-05 12:03:51,578 INFO L225 Difference]: With dead ends: 30 [2019-09-05 12:03:51,578 INFO L226 Difference]: Without dead ends: 28 [2019-09-05 12:03:51,580 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-05 12:03:51,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-09-05 12:03:51,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2019-09-05 12:03:51,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-09-05 12:03:51,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2019-09-05 12:03:51,594 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 17 [2019-09-05 12:03:51,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-05 12:03:51,594 INFO L475 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2019-09-05 12:03:51,594 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-05 12:03:51,595 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2019-09-05 12:03:51,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-05 12:03:51,596 INFO L391 BasicCegarLoop]: Found error trace [2019-09-05 12:03:51,596 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-09-05 12:03:51,598 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-05 12:03:51,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-05 12:03:51,599 INFO L82 PathProgramCache]: Analyzing trace with hash 282820957, now seen corresponding path program 2 times [2019-09-05 12:03:51,599 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-05 12:03:51,600 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-05 12:03:51,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:03:51,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 12:03:51,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:03:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 12:03:51,699 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-05 12:03:51,700 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-05 12:03:51,700 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-05 12:03:51,716 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-05 12:03:51,731 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-05 12:03:51,731 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-05 12:03:51,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2019-09-05 12:03:51,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-05 12:03:51,749 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-05 12:03:51,782 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-05 12:03:51,785 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-05 12:03:51,785 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2019-09-05 12:03:51,786 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-05 12:03:51,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-05 12:03:51,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-09-05 12:03:51,787 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 9 states. [2019-09-05 12:03:51,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-05 12:03:51,847 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2019-09-05 12:03:51,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-05 12:03:51,848 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-09-05 12:03:51,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-05 12:03:51,849 INFO L225 Difference]: With dead ends: 37 [2019-09-05 12:03:51,849 INFO L226 Difference]: Without dead ends: 35 [2019-09-05 12:03:51,850 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2019-09-05 12:03:51,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-09-05 12:03:51,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2019-09-05 12:03:51,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-09-05 12:03:51,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2019-09-05 12:03:51,859 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 24 [2019-09-05 12:03:51,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-05 12:03:51,862 INFO L475 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2019-09-05 12:03:51,862 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-05 12:03:51,862 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2019-09-05 12:03:51,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-09-05 12:03:51,864 INFO L391 BasicCegarLoop]: Found error trace [2019-09-05 12:03:51,864 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2019-09-05 12:03:51,864 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-05 12:03:51,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-05 12:03:51,865 INFO L82 PathProgramCache]: Analyzing trace with hash 864272984, now seen corresponding path program 3 times [2019-09-05 12:03:51,865 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-05 12:03:51,865 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-05 12:03:51,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:03:51,867 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-05 12:03:51,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:03:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 12:03:51,979 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-05 12:03:51,979 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-05 12:03:51,979 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-05 12:03:51,996 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-05 12:03:52,010 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-09-05 12:03:52,011 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-05 12:03:52,012 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 13 conjunts are in the unsatisfiable core [2019-09-05 12:03:52,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-05 12:03:52,110 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-05 12:03:52,135 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-09-05 12:03:52,138 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-05 12:03:52,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14 [2019-09-05 12:03:52,139 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-05 12:03:52,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-05 12:03:52,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2019-09-05 12:03:52,140 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 14 states. [2019-09-05 12:03:52,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-05 12:03:52,246 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2019-09-05 12:03:52,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-05 12:03:52,246 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 31 [2019-09-05 12:03:52,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-05 12:03:52,247 INFO L225 Difference]: With dead ends: 39 [2019-09-05 12:03:52,247 INFO L226 Difference]: Without dead ends: 0 [2019-09-05 12:03:52,248 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2019-09-05 12:03:52,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-05 12:03:52,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-05 12:03:52,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-05 12:03:52,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-05 12:03:52,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2019-09-05 12:03:52,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-05 12:03:52,249 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-05 12:03:52,249 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-05 12:03:52,250 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-05 12:03:52,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-05 12:03:52,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-05 12:03:52,304 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-05 12:03:52,304 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-05 12:03:52,304 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-05 12:03:52,304 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-05 12:03:52,305 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-05 12:03:52,305 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-05 12:03:52,305 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 16) the Hoare annotation is: true [2019-09-05 12:03:52,305 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 16) no Hoare annotation was computed. [2019-09-05 12:03:52,305 INFO L439 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: (and (not (= main_~i~0 1000000)) (<= main_~i~0 1000000)) [2019-09-05 12:03:52,305 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 16) no Hoare annotation was computed. [2019-09-05 12:03:52,306 INFO L443 ceAbstractionStarter]: For program point L13-1(lines 12 14) no Hoare annotation was computed. [2019-09-05 12:03:52,306 INFO L439 ceAbstractionStarter]: At program point L12-2(lines 12 14) the Hoare annotation is: (<= main_~i~0 1000000) [2019-09-05 12:03:52,306 INFO L443 ceAbstractionStarter]: For program point L12-3(lines 12 14) no Hoare annotation was computed. [2019-09-05 12:03:52,306 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-09-05 12:03:52,306 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-09-05 12:03:52,307 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-09-05 12:03:52,307 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-09-05 12:03:52,307 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-09-05 12:03:52,308 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-09-05 12:03:52,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.09 12:03:52 BoogieIcfgContainer [2019-09-05 12:03:52,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-05 12:03:52,325 INFO L168 Benchmark]: Toolchain (without parser) took 2216.67 ms. Allocated memory was 141.6 MB in the beginning and 230.2 MB in the end (delta: 88.6 MB). Free memory was 87.8 MB in the beginning and 169.2 MB in the end (delta: -81.4 MB). Peak memory consumption was 7.3 MB. Max. memory is 7.1 GB. [2019-09-05 12:03:52,327 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 141.6 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-05 12:03:52,329 INFO L168 Benchmark]: CACSL2BoogieTranslator took 189.62 ms. Allocated memory is still 141.6 MB. Free memory was 87.6 MB in the beginning and 78.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-09-05 12:03:52,331 INFO L168 Benchmark]: Boogie Preprocessor took 115.56 ms. Allocated memory was 141.6 MB in the beginning and 201.9 MB in the end (delta: 60.3 MB). Free memory was 78.7 MB in the beginning and 180.0 MB in the end (delta: -101.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-09-05 12:03:52,332 INFO L168 Benchmark]: RCFGBuilder took 245.46 ms. Allocated memory is still 201.9 MB. Free memory was 180.0 MB in the beginning and 169.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-09-05 12:03:52,334 INFO L168 Benchmark]: TraceAbstraction took 1661.89 ms. Allocated memory was 201.9 MB in the beginning and 230.2 MB in the end (delta: 28.3 MB). Free memory was 169.2 MB in the beginning and 169.2 MB in the end (delta: 42.1 kB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2019-09-05 12:03:52,343 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 141.6 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 189.62 ms. Allocated memory is still 141.6 MB. Free memory was 87.6 MB in the beginning and 78.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.56 ms. Allocated memory was 141.6 MB in the beginning and 201.9 MB in the end (delta: 60.3 MB). Free memory was 78.7 MB in the beginning and 180.0 MB in the end (delta: -101.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 245.46 ms. Allocated memory is still 201.9 MB. Free memory was 180.0 MB in the beginning and 169.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1661.89 ms. Allocated memory was 201.9 MB in the beginning and 230.2 MB in the end (delta: 28.3 MB). Free memory was 169.2 MB in the beginning and 169.2 MB in the end (delta: 42.1 kB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: i <= 1000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 SDtfs, 38 SDslu, 186 SDs, 0 SdLazy, 170 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 23 NumberOfFragments, 16 HoareAnnotationTreeSize, 12 FomulaSimplifications, 15 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 27 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 154 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 6607 SizeOfPredicates, 7 NumberOfNonLiveVariables, 126 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 69/104 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...