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/data_structures_set_multi_proc_trivial_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:52:59,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:52:59,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:52:59,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:52:59,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:52:59,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:52:59,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:52:59,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:52:59,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:52:59,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:52:59,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:52:59,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:52:59,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:52:59,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:52:59,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:52:59,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:52:59,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:52:59,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:52:59,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:52:59,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:52:59,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:52:59,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:52:59,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:52:59,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:52:59,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 19:52:59,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:52:59,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:52:59,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:52:59,717 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 19:52:59,742 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:52:59,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:52:59,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:52:59,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:52:59,747 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:52:59,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:52:59,747 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:52:59,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:52:59,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:52:59,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:52:59,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:52:59,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:52:59,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:52:59,750 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:52:59,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:52:59,750 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:52:59,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:52:59,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:52:59,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:52:59,751 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:52:59,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:52:59,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:52:59,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:52:59,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:52:59,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:52:59,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:52:59,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:52:59,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:52:59,753 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 19:53:00,038 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:53:00,051 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:53:00,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:53:00,056 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:53:00,056 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:53:00,057 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2019-10-13 19:53:00,130 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34253a7af/cb07c7fc3e1549a4a4ad410033ed33f1/FLAG802cb6ad5 [2019-10-13 19:53:00,614 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:53:00,614 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2019-10-13 19:53:00,621 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34253a7af/cb07c7fc3e1549a4a4ad410033ed33f1/FLAG802cb6ad5 [2019-10-13 19:53:01,031 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34253a7af/cb07c7fc3e1549a4a4ad410033ed33f1 [2019-10-13 19:53:01,044 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:53:01,046 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:53:01,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:01,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:53:01,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:53:01,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:01" (1/1) ... [2019-10-13 19:53:01,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19511e2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:01, skipping insertion in model container [2019-10-13 19:53:01,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:01" (1/1) ... [2019-10-13 19:53:01,072 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:53:01,098 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:53:01,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:01,380 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:53:01,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:53:01,515 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:53:01,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:01 WrapperNode [2019-10-13 19:53:01,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:53:01,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:53:01,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:53:01,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:53:01,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:01" (1/1) ... [2019-10-13 19:53:01,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:01" (1/1) ... [2019-10-13 19:53:01,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:01" (1/1) ... [2019-10-13 19:53:01,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:01" (1/1) ... [2019-10-13 19:53:01,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:01" (1/1) ... [2019-10-13 19:53:01,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:01" (1/1) ... [2019-10-13 19:53:01,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:01" (1/1) ... [2019-10-13 19:53:01,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:53:01,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:53:01,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:53:01,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:53:01,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:01" (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 19:53:01,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:53:01,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:53:01,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 19:53:01,624 INFO L138 BoogieDeclarations]: Found implementation of procedure insert [2019-10-13 19:53:01,624 INFO L138 BoogieDeclarations]: Found implementation of procedure elem_exists [2019-10-13 19:53:01,625 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:53:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:53:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 19:53:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:53:01,625 INFO L130 BoogieDeclarations]: Found specification of procedure insert [2019-10-13 19:53:01,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:53:01,626 INFO L130 BoogieDeclarations]: Found specification of procedure elem_exists [2019-10-13 19:53:01,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:53:01,626 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:53:01,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:53:01,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:53:01,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:53:01,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:53:02,039 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:53:02,039 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-13 19:53:02,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:02 BoogieIcfgContainer [2019-10-13 19:53:02,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:53:02,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:53:02,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:53:02,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:53:02,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:01" (1/3) ... [2019-10-13 19:53:02,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b01a250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:02, skipping insertion in model container [2019-10-13 19:53:02,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:01" (2/3) ... [2019-10-13 19:53:02,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b01a250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:02, skipping insertion in model container [2019-10-13 19:53:02,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:02" (3/3) ... [2019-10-13 19:53:02,048 INFO L109 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2019-10-13 19:53:02,058 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:53:02,066 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:53:02,077 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:53:02,102 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:53:02,102 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:53:02,103 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:53:02,103 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:53:02,103 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:53:02,103 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:53:02,103 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:53:02,103 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:53:02,119 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2019-10-13 19:53:02,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-13 19:53:02,124 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:02,125 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:02,126 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:02,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:02,131 INFO L82 PathProgramCache]: Analyzing trace with hash 528217166, now seen corresponding path program 1 times [2019-10-13 19:53:02,138 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:02,138 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425350037] [2019-10-13 19:53:02,138 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:02,138 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:02,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:02,308 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 19:53:02,309 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425350037] [2019-10-13 19:53:02,310 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:53:02,311 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 19:53:02,311 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043394159] [2019-10-13 19:53:02,316 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 19:53:02,318 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:02,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 19:53:02,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 19:53:02,336 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 3 states. [2019-10-13 19:53:02,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:02,460 INFO L93 Difference]: Finished difference Result 150 states and 228 transitions. [2019-10-13 19:53:02,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 19:53:02,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-10-13 19:53:02,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:02,479 INFO L225 Difference]: With dead ends: 150 [2019-10-13 19:53:02,479 INFO L226 Difference]: Without dead ends: 89 [2019-10-13 19:53:02,487 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 19:53:02,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-10-13 19:53:02,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 57. [2019-10-13 19:53:02,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-10-13 19:53:02,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 70 transitions. [2019-10-13 19:53:02,538 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 70 transitions. Word has length 14 [2019-10-13 19:53:02,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:02,538 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 70 transitions. [2019-10-13 19:53:02,538 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 19:53:02,539 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 70 transitions. [2019-10-13 19:53:02,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-13 19:53:02,540 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:53:02,540 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:53:02,540 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:53:02,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:02,541 INFO L82 PathProgramCache]: Analyzing trace with hash 396779504, now seen corresponding path program 1 times [2019-10-13 19:53:02,541 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 19:53:02,541 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823605969] [2019-10-13 19:53:02,542 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:02,542 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:53:02,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:53:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:02,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:02,632 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823605969] [2019-10-13 19:53:02,632 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027086502] [2019-10-13 19:53:02,632 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 19:53:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:53:02,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 19:53:02,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:53:02,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:02,753 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 19:53:02,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:53:02,796 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1530391769] [2019-10-13 19:53:02,813 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 17 [2019-10-13 19:53:02,864 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 19:53:02,864 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 19:53:02,950 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 19:53:02,953 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 16 root evaluator evaluations with a maximum evaluation depth of 0. Performed 16 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 21 variables. [2019-10-13 19:53:02,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:53:02,957 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 19:53:03,009 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 19:53:03,009 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 19:53:03,014 INFO L553 sIntCurrentIteration]: We unified 15 AI predicates to 15 [2019-10-13 19:53:03,014 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 19:53:03,015 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 19:53:03,015 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-10-13 19:53:03,016 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213691986] [2019-10-13 19:53:03,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 19:53:03,019 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 19:53:03,019 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 19:53:03,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 19:53:03,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 19:53:03,021 INFO L87 Difference]: Start difference. First operand 57 states and 70 transitions. Second operand 2 states. [2019-10-13 19:53:03,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:53:03,028 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2019-10-13 19:53:03,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 19:53:03,028 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-10-13 19:53:03,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:53:03,029 INFO L225 Difference]: With dead ends: 57 [2019-10-13 19:53:03,029 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 19:53:03,030 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 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 19:53:03,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 19:53:03,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 19:53:03,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 19:53:03,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 19:53:03,031 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-10-13 19:53:03,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:53:03,032 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 19:53:03,032 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 19:53:03,032 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 19:53:03,032 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 19:53:03,235 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:53:03,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 19:53:03,313 INFO L446 ceAbstractionStarter]: At program point elem_existsENTRY(lines 9 15) the Hoare annotation is: true [2019-10-13 19:53:03,314 INFO L443 ceAbstractionStarter]: For program point elem_existsEXIT(lines 9 15) no Hoare annotation was computed. [2019-10-13 19:53:03,314 INFO L443 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2019-10-13 19:53:03,314 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2019-10-13 19:53:03,314 INFO L443 ceAbstractionStarter]: For program point elem_existsFINAL(lines 9 15) no Hoare annotation was computed. [2019-10-13 19:53:03,314 INFO L446 ceAbstractionStarter]: At program point L11-3(lines 11 13) the Hoare annotation is: true [2019-10-13 19:53:03,314 INFO L443 ceAbstractionStarter]: For program point L11-4(lines 11 13) no Hoare annotation was computed. [2019-10-13 19:53:03,315 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:03,315 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:03,315 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:03,315 INFO L446 ceAbstractionStarter]: At program point insertENTRY(lines 5 8) the Hoare annotation is: true [2019-10-13 19:53:03,315 INFO L443 ceAbstractionStarter]: For program point insertFINAL(lines 5 8) no Hoare annotation was computed. [2019-10-13 19:53:03,315 INFO L443 ceAbstractionStarter]: For program point insertEXIT(lines 5 8) no Hoare annotation was computed. [2019-10-13 19:53:03,316 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 19:53:03,316 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 19:53:03,316 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 19:53:03,316 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 19:53:03,316 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 16 56) no Hoare annotation was computed. [2019-10-13 19:53:03,316 INFO L439 ceAbstractionStarter]: At program point L52(line 52) the Hoare annotation is: false [2019-10-13 19:53:03,317 INFO L443 ceAbstractionStarter]: For program point L52-1(line 52) no Hoare annotation was computed. [2019-10-13 19:53:03,317 INFO L443 ceAbstractionStarter]: For program point L44-2(lines 44 48) no Hoare annotation was computed. [2019-10-13 19:53:03,317 INFO L439 ceAbstractionStarter]: At program point L44-3(lines 44 48) the Hoare annotation is: false [2019-10-13 19:53:03,317 INFO L443 ceAbstractionStarter]: For program point L36-2(lines 36 39) no Hoare annotation was computed. [2019-10-13 19:53:03,317 INFO L439 ceAbstractionStarter]: At program point L36-3(lines 36 39) the Hoare annotation is: false [2019-10-13 19:53:03,318 INFO L443 ceAbstractionStarter]: For program point L36-4(lines 36 39) no Hoare annotation was computed. [2019-10-13 19:53:03,318 INFO L443 ceAbstractionStarter]: For program point L28-2(lines 28 32) no Hoare annotation was computed. [2019-10-13 19:53:03,318 INFO L439 ceAbstractionStarter]: At program point L28-3(lines 28 32) the Hoare annotation is: false [2019-10-13 19:53:03,318 INFO L443 ceAbstractionStarter]: For program point L28-4(lines 28 32) no Hoare annotation was computed. [2019-10-13 19:53:03,318 INFO L443 ceAbstractionStarter]: For program point L45-2(lines 45 47) no Hoare annotation was computed. [2019-10-13 19:53:03,318 INFO L439 ceAbstractionStarter]: At program point L45-3(lines 45 47) the Hoare annotation is: false [2019-10-13 19:53:03,319 INFO L443 ceAbstractionStarter]: For program point L29-2(lines 29 31) no Hoare annotation was computed. [2019-10-13 19:53:03,319 INFO L439 ceAbstractionStarter]: At program point L29-3(lines 29 31) the Hoare annotation is: false [2019-10-13 19:53:03,319 INFO L439 ceAbstractionStarter]: At program point L46(line 46) the Hoare annotation is: false [2019-10-13 19:53:03,319 INFO L443 ceAbstractionStarter]: For program point L46-1(line 46) no Hoare annotation was computed. [2019-10-13 19:53:03,319 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 16 56) no Hoare annotation was computed. [2019-10-13 19:53:03,319 INFO L439 ceAbstractionStarter]: At program point L30(line 30) the Hoare annotation is: false [2019-10-13 19:53:03,319 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 16 56) the Hoare annotation is: true [2019-10-13 19:53:03,320 INFO L443 ceAbstractionStarter]: For program point L30-1(line 30) no Hoare annotation was computed. [2019-10-13 19:53:03,320 INFO L443 ceAbstractionStarter]: For program point L22-2(lines 22 25) no Hoare annotation was computed. [2019-10-13 19:53:03,320 INFO L439 ceAbstractionStarter]: At program point L22-3(lines 22 25) the Hoare annotation is: false [2019-10-13 19:53:03,320 INFO L443 ceAbstractionStarter]: For program point L22-4(lines 22 25) no Hoare annotation was computed. [2019-10-13 19:53:03,320 INFO L443 ceAbstractionStarter]: For program point L40-2(lines 40 49) no Hoare annotation was computed. [2019-10-13 19:53:03,320 INFO L439 ceAbstractionStarter]: At program point L40-3(lines 40 49) the Hoare annotation is: false [2019-10-13 19:53:03,320 INFO L443 ceAbstractionStarter]: For program point L40-4(lines 40 49) no Hoare annotation was computed. [2019-10-13 19:53:03,321 INFO L439 ceAbstractionStarter]: At program point L41(line 41) the Hoare annotation is: false [2019-10-13 19:53:03,334 INFO L443 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2019-10-13 19:53:03,334 INFO L443 ceAbstractionStarter]: For program point L41-2(lines 41 43) no Hoare annotation was computed. [2019-10-13 19:53:03,335 INFO L443 ceAbstractionStarter]: For program point L41-4(lines 41 43) no Hoare annotation was computed. [2019-10-13 19:53:03,335 INFO L443 ceAbstractionStarter]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2019-10-13 19:53:03,335 INFO L439 ceAbstractionStarter]: At program point L50-3(lines 50 54) the Hoare annotation is: false [2019-10-13 19:53:03,335 INFO L443 ceAbstractionStarter]: For program point L50-4(lines 50 54) no Hoare annotation was computed. [2019-10-13 19:53:03,335 INFO L439 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: false [2019-10-13 19:53:03,335 INFO L443 ceAbstractionStarter]: For program point L42-1(line 42) no Hoare annotation was computed. [2019-10-13 19:53:03,335 INFO L443 ceAbstractionStarter]: For program point L51-2(lines 51 53) no Hoare annotation was computed. [2019-10-13 19:53:03,336 INFO L439 ceAbstractionStarter]: At program point L51-3(lines 51 53) the Hoare annotation is: false [2019-10-13 19:53:03,336 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-10-13 19:53:03,336 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-10-13 19:53:03,336 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-10-13 19:53:03,336 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-10-13 19:53:03,336 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-10-13 19:53:03,336 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-10-13 19:53:03,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:03 BoogieIcfgContainer [2019-10-13 19:53:03,345 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 19:53:03,348 INFO L168 Benchmark]: Toolchain (without parser) took 2301.11 ms. Allocated memory was 146.8 MB in the beginning and 234.9 MB in the end (delta: 88.1 MB). Free memory was 102.8 MB in the beginning and 202.9 MB in the end (delta: -100.1 MB). Peak memory consumption was 76.8 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:03,349 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 19:53:03,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 468.53 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 102.6 MB in the beginning and 180.6 MB in the end (delta: -78.0 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:03,351 INFO L168 Benchmark]: Boogie Preprocessor took 44.61 ms. Allocated memory is still 202.9 MB. Free memory was 180.6 MB in the beginning and 178.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:03,352 INFO L168 Benchmark]: RCFGBuilder took 479.53 ms. Allocated memory is still 202.9 MB. Free memory was 178.7 MB in the beginning and 155.6 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:03,353 INFO L168 Benchmark]: TraceAbstraction took 1303.57 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 155.6 MB in the beginning and 202.9 MB in the end (delta: -47.3 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. [2019-10-13 19:53:03,357 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 146.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 468.53 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 102.6 MB in the beginning and 180.6 MB in the end (delta: -78.0 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.61 ms. Allocated memory is still 202.9 MB. Free memory was 180.6 MB in the beginning and 178.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 479.53 ms. Allocated memory is still 202.9 MB. Free memory was 178.7 MB in the beginning and 155.6 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1303.57 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 155.6 MB in the beginning and 202.9 MB in the end (delta: -47.3 MB). Peak memory consumption was 73.5 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: 36]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 61 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 72 SDtfs, 33 SDslu, 55 SDs, 0 SdLazy, 29 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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, 2 MinimizatonAttempts, 32 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 30 PreInvPairs, 30 NumberOfFragments, 22 HoareAnnotationTreeSize, 30 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 22 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 1140 SizeOfPredicates, 1 NumberOfNonLiveVariables, 65 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 148, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9166666666666666, AVG_VARS_REMOVED_DURING_WEAKENING: 0.9333333333333333, AVG_WEAKENED_CONJUNCTS: 0.4, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...