/usr/bin/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_copyInit_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 22:26:43,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:26:43,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:26:43,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:26:43,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:26:43,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:26:43,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:26:43,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:26:43,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:26:43,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:26:43,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:26:43,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:26:43,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:26:43,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:26:43,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:26:43,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:26:43,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:26:43,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:26:43,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:26:43,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:26:43,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:26:43,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:26:43,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:26:43,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:26:43,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:26:43,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:26:43,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:26:43,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:26:43,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:26:43,251 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:26:43,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:26:43,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:26:43,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:26:43,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:26:43,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:26:43,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:26:43,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:26:43,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:26:43,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:26:43,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:26:43,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:26:43,261 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 [2019-11-06 22:26:43,274 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:26:43,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:26:43,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:26:43,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:26:43,276 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:26:43,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:26:43,276 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:26:43,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:26:43,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:26:43,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:26:43,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:26:43,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:26:43,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:26:43,278 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:26:43,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:26:43,278 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:26:43,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:26:43,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:26:43,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:26:43,279 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:26:43,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:26:43,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:26:43,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:26:43,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:26:43,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:26:43,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:26:43,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:26:43,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:26:43,281 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 [2019-11-06 22:26:43,591 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:26:43,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:26:43,618 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:26:43,620 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:26:43,620 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:26:43,621 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_copyInit_ground.i [2019-11-06 22:26:43,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e11c3649e/932bf908bd274304bfb2b29f556e5cfe/FLAG8a997a1c7 [2019-11-06 22:26:44,165 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:26:44,166 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_copyInit_ground.i [2019-11-06 22:26:44,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e11c3649e/932bf908bd274304bfb2b29f556e5cfe/FLAG8a997a1c7 [2019-11-06 22:26:44,572 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e11c3649e/932bf908bd274304bfb2b29f556e5cfe [2019-11-06 22:26:44,583 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:26:44,585 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:26:44,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:26:44,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:26:44,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:26:44,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:44" (1/1) ... [2019-11-06 22:26:44,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@175e7e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44, skipping insertion in model container [2019-11-06 22:26:44,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:44" (1/1) ... [2019-11-06 22:26:44,602 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:26:44,626 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:26:44,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:26:44,866 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:26:44,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:26:44,900 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:26:44,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44 WrapperNode [2019-11-06 22:26:44,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:26:44,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:26:44,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:26:44,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:26:44,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44" (1/1) ... [2019-11-06 22:26:44,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44" (1/1) ... [2019-11-06 22:26:45,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44" (1/1) ... [2019-11-06 22:26:45,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44" (1/1) ... [2019-11-06 22:26:45,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44" (1/1) ... [2019-11-06 22:26:45,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44" (1/1) ... [2019-11-06 22:26:45,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44" (1/1) ... [2019-11-06 22:26:45,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:26:45,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:26:45,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:26:45,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:26:45,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:26:45,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:26:45,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:26:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-06 22:26:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:26:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:26:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-06 22:26:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:26:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 22:26:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 22:26:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 22:26:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 22:26:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:26:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:26:45,326 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:26:45,326 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-06 22:26:45,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:45 BoogieIcfgContainer [2019-11-06 22:26:45,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:26:45,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:26:45,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:26:45,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:26:45,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:26:44" (1/3) ... [2019-11-06 22:26:45,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5abb0780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:45, skipping insertion in model container [2019-11-06 22:26:45,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:44" (2/3) ... [2019-11-06 22:26:45,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5abb0780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:26:45, skipping insertion in model container [2019-11-06 22:26:45,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:26:45" (3/3) ... [2019-11-06 22:26:45,340 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_copyInit_ground.i [2019-11-06 22:26:45,352 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:26:45,359 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:26:45,375 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:26:45,404 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:26:45,404 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:26:45,404 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:26:45,405 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:26:45,405 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:26:45,405 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:26:45,405 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:26:45,405 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:26:45,425 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-06 22:26:45,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-06 22:26:45,433 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:45,434 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:26:45,436 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:45,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:45,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1085876810, now seen corresponding path program 1 times [2019-11-06 22:26:45,453 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:45,453 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812270064] [2019-11-06 22:26:45,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:45,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:26:45,583 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812270064] [2019-11-06 22:26:45,584 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:45,584 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-06 22:26:45,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110728188] [2019-11-06 22:26:45,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:26:45,591 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:45,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-06 22:26:45,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 22:26:45,609 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-06 22:26:45,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:45,634 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2019-11-06 22:26:45,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:26:45,635 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-11-06 22:26:45,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:45,644 INFO L225 Difference]: With dead ends: 45 [2019-11-06 22:26:45,644 INFO L226 Difference]: Without dead ends: 21 [2019-11-06 22:26:45,647 INFO L630 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 [2019-11-06 22:26:45,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-06 22:26:45,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-06 22:26:45,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-06 22:26:45,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2019-11-06 22:26:45,685 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 15 [2019-11-06 22:26:45,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:45,686 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2019-11-06 22:26:45,686 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:26:45,686 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2019-11-06 22:26:45,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-06 22:26:45,687 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:45,688 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:26:45,688 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:45,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:45,689 INFO L82 PathProgramCache]: Analyzing trace with hash -274239930, now seen corresponding path program 1 times [2019-11-06 22:26:45,689 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:45,689 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032728238] [2019-11-06 22:26:45,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:45,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:26:45,771 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032728238] [2019-11-06 22:26:45,772 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:26:45,772 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-06 22:26:45,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485907703] [2019-11-06 22:26:45,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-06 22:26:45,774 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:45,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-06 22:26:45,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-06 22:26:45,775 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 3 states. [2019-11-06 22:26:45,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:45,807 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2019-11-06 22:26:45,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-06 22:26:45,808 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-06 22:26:45,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:45,809 INFO L225 Difference]: With dead ends: 38 [2019-11-06 22:26:45,809 INFO L226 Difference]: Without dead ends: 24 [2019-11-06 22:26:45,810 INFO L630 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 [2019-11-06 22:26:45,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-06 22:26:45,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2019-11-06 22:26:45,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-06 22:26:45,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2019-11-06 22:26:45,818 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 15 [2019-11-06 22:26:45,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:45,818 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2019-11-06 22:26:45,818 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-06 22:26:45,818 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2019-11-06 22:26:45,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-06 22:26:45,820 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:26:45,820 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 22:26:45,821 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:26:45,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:45,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1258895644, now seen corresponding path program 1 times [2019-11-06 22:26:45,822 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-06 22:26:45,822 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451840069] [2019-11-06 22:26:45,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:26:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:45,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:26:45,921 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451840069] [2019-11-06 22:26:45,922 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47867638] [2019-11-06 22:26:45,922 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 [2019-11-06 22:26:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:26:46,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 22:26:46,012 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 22:26:46,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:26:46,039 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-06 22:26:46,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-06 22:26:46,090 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1251818912] [2019-11-06 22:26:46,099 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 19 [2019-11-06 22:26:46,148 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-06 22:26:46,148 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-06 22:26:46,201 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-06 22:26:46,203 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 21 variables. [2019-11-06 22:26:46,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:26:46,206 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-06 22:26:46,242 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-11-06 22:26:46,242 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-06 22:26:46,244 INFO L553 sIntCurrentIteration]: We unified 17 AI predicates to 17 [2019-11-06 22:26:46,244 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-06 22:26:46,245 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-06 22:26:46,245 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-11-06 22:26:46,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815450692] [2019-11-06 22:26:46,246 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 22:26:46,246 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-06 22:26:46,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 22:26:46,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:26:46,247 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 2 states. [2019-11-06 22:26:46,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:26:46,250 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2019-11-06 22:26:46,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 22:26:46,250 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-06 22:26:46,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:26:46,251 INFO L225 Difference]: With dead ends: 23 [2019-11-06 22:26:46,251 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 22:26:46,252 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-11-06 22:26:46,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 22:26:46,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 22:26:46,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 22:26:46,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 22:26:46,253 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-11-06 22:26:46,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:26:46,253 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 22:26:46,253 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 22:26:46,253 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 22:26:46,254 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 22:26:46,457 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 22:26:46,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 22:26:46,502 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:26:46,502 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:26:46,503 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:26:46,503 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 22:26:46,503 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-06 22:26:46,503 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 22:26:46,503 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 22:26:46,503 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 3 19) no Hoare annotation was computed. [2019-11-06 22:26:46,504 INFO L443 ceAbstractionStarter]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2019-11-06 22:26:46,504 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 3 19) no Hoare annotation was computed. [2019-11-06 22:26:46,504 INFO L439 ceAbstractionStarter]: At program point L15-3(lines 15 17) the Hoare annotation is: false [2019-11-06 22:26:46,504 INFO L443 ceAbstractionStarter]: For program point L15-4(lines 15 17) no Hoare annotation was computed. [2019-11-06 22:26:46,504 INFO L443 ceAbstractionStarter]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2019-11-06 22:26:46,504 INFO L439 ceAbstractionStarter]: At program point L11-3(lines 11 13) the Hoare annotation is: false [2019-11-06 22:26:46,505 INFO L443 ceAbstractionStarter]: For program point L11-4(lines 11 13) no Hoare annotation was computed. [2019-11-06 22:26:46,505 INFO L439 ceAbstractionStarter]: At program point L7-2(lines 7 10) the Hoare annotation is: false [2019-11-06 22:26:46,505 INFO L443 ceAbstractionStarter]: For program point L7-3(lines 7 10) no Hoare annotation was computed. [2019-11-06 22:26:46,505 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 3 19) the Hoare annotation is: true [2019-11-06 22:26:46,505 INFO L439 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: false [2019-11-06 22:26:46,505 INFO L443 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2019-11-06 22:26:46,506 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-11-06 22:26:46,506 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-11-06 22:26:46,506 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-11-06 22:26:46,506 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-11-06 22:26:46,506 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-11-06 22:26:46,507 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-11-06 22:26:46,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:26:46 BoogieIcfgContainer [2019-11-06 22:26:46,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 22:26:46,519 INFO L168 Benchmark]: Toolchain (without parser) took 1933.25 ms. Allocated memory was 142.6 MB in the beginning and 202.4 MB in the end (delta: 59.8 MB). Free memory was 104.7 MB in the beginning and 109.1 MB in the end (delta: -4.4 MB). Peak memory consumption was 55.4 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:46,520 INFO L168 Benchmark]: CDTParser took 1.24 ms. Allocated memory is still 142.6 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-06 22:26:46,521 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.18 ms. Allocated memory is still 142.6 MB. Free memory was 104.3 MB in the beginning and 94.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:46,522 INFO L168 Benchmark]: Boogie Preprocessor took 138.10 ms. Allocated memory was 142.6 MB in the beginning and 202.4 MB in the end (delta: 59.8 MB). Free memory was 94.5 MB in the beginning and 179.8 MB in the end (delta: -85.3 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:46,523 INFO L168 Benchmark]: RCFGBuilder took 289.13 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 165.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:46,524 INFO L168 Benchmark]: TraceAbstraction took 1185.67 ms. Allocated memory is still 202.4 MB. Free memory was 165.8 MB in the beginning and 109.1 MB in the end (delta: 56.7 MB). Peak memory consumption was 56.7 MB. Max. memory is 7.1 GB. [2019-11-06 22:26:46,529 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.24 ms. Allocated memory is still 142.6 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 315.18 ms. Allocated memory is still 142.6 MB. Free memory was 104.3 MB in the beginning and 94.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.10 ms. Allocated memory was 142.6 MB in the beginning and 202.4 MB in the end (delta: 59.8 MB). Free memory was 94.5 MB in the beginning and 179.8 MB in the end (delta: -85.3 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 289.13 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 165.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1185.67 ms. Allocated memory is still 202.4 MB. Free memory was 165.8 MB in the beginning and 109.1 MB in the end (delta: 56.7 MB). Peak memory consumption was 56.7 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: 15]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 1 SDslu, 16 SDs, 0 SdLazy, 8 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 11 NumberOfFragments, 9 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 1525 SizeOfPredicates, 1 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 3/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 108, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9264705882352942, AVG_VARS_REMOVED_DURING_WEAKENING: 0.8235294117647058, AVG_WEAKENED_CONJUNCTS: 0.35294117647058826, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...