java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/array-examples/standard_init5_ground-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:53:18,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:53:18,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:53:18,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:53:18,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:53:18,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:53:18,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:53:18,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:53:18,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:53:18,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:53:18,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:53:18,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:53:18,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:53:18,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:53:18,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:53:18,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:53:18,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:53:18,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:53:18,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:53:18,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:53:18,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:53:18,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:53:18,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:53:18,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:53:18,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 19:53:18,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:53:18,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:53:18,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:53:18,389 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 19:53:18,403 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:53:18,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:53:18,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:53:18,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:53:18,406 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:53:18,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:53:18,407 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:53:18,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:53:18,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:53:18,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:53:18,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:53:18,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:53:18,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:53:18,408 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:53:18,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:53:18,409 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:53:18,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:53:18,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:53:18,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:53:18,410 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:53:18,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:53:18,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:53:18,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:53:18,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:53:18,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:53:18,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:53:18,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:53:18,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:53:18,413 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 19:53:18,699 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:53:18,712 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:53:18,715 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:53:18,717 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:53:18,717 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:53:18,718 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_init5_ground-2.i [2019-10-13 19:53:18,792 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e0fa902f/0b4134e2c0664ec0bc2272baaa2ce8bf/FLAG2476c2930 [2019-10-13 19:53:19,265 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:53:19,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_init5_ground-2.i [2019-10-13 19:53:19,272 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e0fa902f/0b4134e2c0664ec0bc2272baaa2ce8bf/FLAG2476c2930 [2019-10-13 19:53:19,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e0fa902f/0b4134e2c0664ec0bc2272baaa2ce8bf [2019-10-13 19:53:19,631 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:53:19,633 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:53:19,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:19,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:53:19,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:53:19,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:19" (1/1) ... [2019-10-13 19:53:19,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b5ad9d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19, skipping insertion in model container [2019-10-13 19:53:19,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:19" (1/1) ... [2019-10-13 19:53:19,651 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:53:19,668 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:53:19,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:19,863 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:53:19,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:19,903 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:53:19,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19 WrapperNode [2019-10-13 19:53:19,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:19,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:53:19,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:53:19,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:53:19,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ... [2019-10-13 19:53:19,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ... [2019-10-13 19:53:20,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ... [2019-10-13 19:53:20,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ... [2019-10-13 19:53:20,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ... [2019-10-13 19:53:20,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ... [2019-10-13 19:53:20,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ... [2019-10-13 19:53:20,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:53:20,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:53:20,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:53:20,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:53:20,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (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 19:53:20,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:53:20,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:53:20,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:53:20,089 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:53:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:53:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:53:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:53:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:53:20,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:53:20,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:53:20,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:53:20,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:53:20,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:53:20,373 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:53:20,374 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-13 19:53:20,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:20 BoogieIcfgContainer [2019-10-13 19:53:20,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:53:20,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:53:20,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:53:20,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:53:20,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:19" (1/3) ... [2019-10-13 19:53:20,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527ff4cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:20, skipping insertion in model container [2019-10-13 19:53:20,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (2/3) ... [2019-10-13 19:53:20,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527ff4cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:20, skipping insertion in model container [2019-10-13 19:53:20,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:20" (3/3) ... [2019-10-13 19:53:20,402 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_init5_ground-2.i [2019-10-13 19:53:20,424 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:53:20,440 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:53:20,460 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:53:20,483 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:53:20,483 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:53:20,484 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:53:20,484 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:53:20,484 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:53:20,484 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:53:20,484 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:53:20,484 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:53:20,502 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-10-13 19:53:20,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-13 19:53:20,507 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:20,508 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:20,510 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:20,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:20,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1721973062, now seen corresponding path program 1 times [2019-10-13 19:53:20,525 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:20,526 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865527581] [2019-10-13 19:53:20,526 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:20,526 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:20,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:20,647 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 19:53:20,648 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865527581] [2019-10-13 19:53:20,649 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:20,649 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 19:53:20,649 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133913684] [2019-10-13 19:53:20,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:20,655 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:20,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:20,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:20,675 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2019-10-13 19:53:20,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:20,704 INFO L93 Difference]: Finished difference Result 55 states and 78 transitions. [2019-10-13 19:53:20,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:20,706 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2019-10-13 19:53:20,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:20,715 INFO L225 Difference]: With dead ends: 55 [2019-10-13 19:53:20,716 INFO L226 Difference]: Without dead ends: 26 [2019-10-13 19:53:20,720 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:20,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-13 19:53:20,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-10-13 19:53:20,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-10-13 19:53:20,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2019-10-13 19:53:20,764 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 21 [2019-10-13 19:53:20,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:20,764 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2019-10-13 19:53:20,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:20,765 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2019-10-13 19:53:20,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-13 19:53:20,766 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:20,767 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:20,767 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:20,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:20,768 INFO L82 PathProgramCache]: Analyzing trace with hash -13266878, now seen corresponding path program 1 times [2019-10-13 19:53:20,768 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:20,768 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236060620] [2019-10-13 19:53:20,769 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:20,769 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:20,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:20,826 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 19:53:20,827 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236060620] [2019-10-13 19:53:20,827 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:20,828 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:53:20,828 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571565820] [2019-10-13 19:53:20,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:53:20,830 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:20,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:53:20,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:20,831 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 3 states. [2019-10-13 19:53:20,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:20,913 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2019-10-13 19:53:20,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:53:20,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-10-13 19:53:20,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:20,915 INFO L225 Difference]: With dead ends: 50 [2019-10-13 19:53:20,915 INFO L226 Difference]: Without dead ends: 31 [2019-10-13 19:53:20,916 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:20,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-13 19:53:20,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-10-13 19:53:20,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-13 19:53:20,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2019-10-13 19:53:20,925 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 21 [2019-10-13 19:53:20,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:20,925 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2019-10-13 19:53:20,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:53:20,926 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2019-10-13 19:53:20,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-13 19:53:20,927 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:20,927 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:20,927 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:20,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:20,928 INFO L82 PathProgramCache]: Analyzing trace with hash -927642988, now seen corresponding path program 1 times [2019-10-13 19:53:20,928 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:20,928 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331025633] [2019-10-13 19:53:20,929 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:20,929 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:20,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:21,036 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 19:53:21,037 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331025633] [2019-10-13 19:53:21,037 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542940050] [2019-10-13 19:53:21,037 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 19:53:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:21,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 19:53:21,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:21,144 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 19:53:21,144 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:21,183 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 19:53:21,183 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1020147200] [2019-10-13 19:53:21,190 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 27 [2019-10-13 19:53:21,239 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 19:53:21,239 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 19:53:21,300 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 19:53:21,302 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 17 variables. [2019-10-13 19:53:21,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:21,306 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 19:53:21,342 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 19:53:21,342 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 19:53:21,344 INFO L553 sIntCurrentIteration]: We unified 25 AI predicates to 25 [2019-10-13 19:53:21,344 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 19:53:21,345 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 19:53:21,345 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-10-13 19:53:21,346 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749749787] [2019-10-13 19:53:21,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:21,347 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:21,347 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 19:53:21,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:21,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:21,348 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand 2 states. [2019-10-13 19:53:21,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:21,351 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2019-10-13 19:53:21,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:21,352 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2019-10-13 19:53:21,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:21,352 INFO L225 Difference]: With dead ends: 31 [2019-10-13 19:53:21,352 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:53:21,356 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 25 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 19:53:21,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:53:21,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:53:21,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:53:21,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:53:21,357 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2019-10-13 19:53:21,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:21,358 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:53:21,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:21,359 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:53:21,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:53:21,563 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:21,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:53:21,613 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:21,613 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:21,614 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:21,614 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:21,614 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:53:21,614 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:21,614 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:21,615 INFO L443 ceAbstractionStarter]: For program point L31-2(lines 31 33) no Hoare annotation was computed. [2019-10-13 19:53:21,615 INFO L439 ceAbstractionStarter]: At program point L31-3(lines 31 33) the Hoare annotation is: false [2019-10-13 19:53:21,615 INFO L443 ceAbstractionStarter]: For program point L31-4(lines 31 33) no Hoare annotation was computed. [2019-10-13 19:53:21,615 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 3 35) no Hoare annotation was computed. [2019-10-13 19:53:21,615 INFO L439 ceAbstractionStarter]: At program point L11-2(lines 11 14) the Hoare annotation is: false [2019-10-13 19:53:21,615 INFO L443 ceAbstractionStarter]: For program point L11-3(lines 11 14) no Hoare annotation was computed. [2019-10-13 19:53:21,616 INFO L439 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: false [2019-10-13 19:53:21,616 INFO L443 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2019-10-13 19:53:21,616 INFO L439 ceAbstractionStarter]: At program point L16-2(lines 16 19) the Hoare annotation is: false [2019-10-13 19:53:21,616 INFO L443 ceAbstractionStarter]: For program point L16-3(lines 16 19) no Hoare annotation was computed. [2019-10-13 19:53:21,616 INFO L439 ceAbstractionStarter]: At program point L21-2(lines 21 24) the Hoare annotation is: false [2019-10-13 19:53:21,617 INFO L443 ceAbstractionStarter]: For program point L21-3(lines 21 24) no Hoare annotation was computed. [2019-10-13 19:53:21,617 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 3 35) no Hoare annotation was computed. [2019-10-13 19:53:21,617 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 3 35) the Hoare annotation is: true [2019-10-13 19:53:21,617 INFO L439 ceAbstractionStarter]: At program point L26-2(lines 26 29) the Hoare annotation is: false [2019-10-13 19:53:21,617 INFO L443 ceAbstractionStarter]: For program point L26-3(lines 26 29) no Hoare annotation was computed. [2019-10-13 19:53:21,617 INFO L439 ceAbstractionStarter]: At program point L6-2(lines 6 9) the Hoare annotation is: false [2019-10-13 19:53:21,618 INFO L443 ceAbstractionStarter]: For program point L6-3(lines 6 9) no Hoare annotation was computed. [2019-10-13 19:53:21,618 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-10-13 19:53:21,618 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-10-13 19:53:21,618 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-10-13 19:53:21,618 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-10-13 19:53:21,619 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-10-13 19:53:21,619 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-10-13 19:53:21,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:21 BoogieIcfgContainer [2019-10-13 19:53:21,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:53:21,630 INFO L168 Benchmark]: Toolchain (without parser) took 1996.25 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 101.7 MB in the beginning and 101.9 MB in the end (delta: -184.0 kB). Peak memory consumption was 56.4 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:21,631 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 120.4 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-13 19:53:21,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.90 ms. Allocated memory is still 145.2 MB. Free memory was 101.5 MB in the beginning and 91.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:21,633 INFO L168 Benchmark]: Boogie Preprocessor took 121.22 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 91.0 MB in the beginning and 179.6 MB in the end (delta: -88.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:21,633 INFO L168 Benchmark]: RCFGBuilder took 350.61 ms. Allocated memory is still 201.9 MB. Free memory was 179.6 MB in the beginning and 164.5 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:21,634 INFO L168 Benchmark]: TraceAbstraction took 1241.76 ms. Allocated memory is still 201.9 MB. Free memory was 163.8 MB in the beginning and 101.9 MB in the end (delta: 62.0 MB). Peak memory consumption was 62.0 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:21,638 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 120.4 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 267.90 ms. Allocated memory is still 145.2 MB. Free memory was 101.5 MB in the beginning and 91.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.22 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 91.0 MB in the beginning and 179.6 MB in the end (delta: -88.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 350.61 ms. Allocated memory is still 201.9 MB. Free memory was 179.6 MB in the beginning and 164.5 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1241.76 ms. Allocated memory is still 201.9 MB. Free memory was 163.8 MB in the beginning and 101.9 MB in the end (delta: 62.0 MB). Peak memory consumption was 62.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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: 31]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 0 SDslu, 16 SDs, 0 SdLazy, 15 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 14 PreInvPairs, 14 NumberOfFragments, 12 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 3015 SizeOfPredicates, 1 NumberOfNonLiveVariables, 84 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 12/15 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 117, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.97, AVG_VARS_REMOVED_DURING_WEAKENING: 0.52, AVG_WEAKENED_CONJUNCTS: 0.24, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...