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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/array-examples/standard_copy5_ground-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 16:29:53,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 16:29:53,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 16:29:53,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 16:29:53,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 16:29:53,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 16:29:53,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 16:29:53,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 16:29:53,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 16:29:53,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 16:29:53,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 16:29:53,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 16:29:53,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 16:29:53,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 16:29:53,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 16:29:53,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 16:29:53,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 16:29:53,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 16:29:53,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 16:29:53,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 16:29:53,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 16:29:53,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 16:29:53,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 16:29:53,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 16:29:53,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 16:29:53,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 16:29:53,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 16:29:53,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 16:29:53,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 16:29:53,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 16:29:53,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 16:29:53,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 16:29:53,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 16:29:53,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 16:29:53,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 16:29:53,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 16:29:53,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 16:29:53,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 16:29:53,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 16:29:53,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 16:29:53,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 16:29:53,233 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-02 16:29:53,248 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 16:29:53,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 16:29:53,248 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 16:29:53,248 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 16:29:53,249 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 16:29:53,249 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 16:29:53,249 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 16:29:53,250 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 16:29:53,250 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 16:29:53,250 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 16:29:53,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 16:29:53,251 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 16:29:53,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 16:29:53,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 16:29:53,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 16:29:53,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 16:29:53,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 16:29:53,252 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 16:29:53,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 16:29:53,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 16:29:53,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 16:29:53,253 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 16:29:53,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 16:29:53,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 16:29:53,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 16:29:53,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 16:29:53,254 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 16:29:53,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 16:29:53,254 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 16:29:53,254 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 16:29:53,286 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 16:29:53,298 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 16:29:53,301 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 16:29:53,303 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 16:29:53,303 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 16:29:53,304 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_copy5_ground-2.i [2019-10-02 16:29:53,362 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/765e71b8d/281adcc4c9a2406ba93fa8b95186a510/FLAG4a4037120 [2019-10-02 16:29:53,803 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 16:29:53,804 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_copy5_ground-2.i [2019-10-02 16:29:53,810 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/765e71b8d/281adcc4c9a2406ba93fa8b95186a510/FLAG4a4037120 [2019-10-02 16:29:54,260 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/765e71b8d/281adcc4c9a2406ba93fa8b95186a510 [2019-10-02 16:29:54,269 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 16:29:54,270 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 16:29:54,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 16:29:54,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 16:29:54,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 16:29:54,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 04:29:54" (1/1) ... [2019-10-02 16:29:54,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e4cadf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54, skipping insertion in model container [2019-10-02 16:29:54,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 04:29:54" (1/1) ... [2019-10-02 16:29:54,286 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 16:29:54,311 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 16:29:54,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 16:29:54,544 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 16:29:54,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 16:29:54,589 INFO L192 MainTranslator]: Completed translation [2019-10-02 16:29:54,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54 WrapperNode [2019-10-02 16:29:54,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 16:29:54,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 16:29:54,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 16:29:54,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 16:29:54,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54" (1/1) ... [2019-10-02 16:29:54,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54" (1/1) ... [2019-10-02 16:29:54,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54" (1/1) ... [2019-10-02 16:29:54,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54" (1/1) ... [2019-10-02 16:29:54,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54" (1/1) ... [2019-10-02 16:29:54,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54" (1/1) ... [2019-10-02 16:29:54,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54" (1/1) ... [2019-10-02 16:29:54,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 16:29:54,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 16:29:54,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 16:29:54,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 16:29:54,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54" (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 [2019-10-02 16:29:54,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 16:29:54,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 16:29:54,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-02 16:29:54,780 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 16:29:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 16:29:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-02 16:29:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 16:29:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 16:29:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 16:29:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 16:29:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 16:29:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 16:29:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 16:29:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 16:29:55,141 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 16:29:55,141 INFO L283 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-02 16:29:55,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 04:29:55 BoogieIcfgContainer [2019-10-02 16:29:55,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 16:29:55,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 16:29:55,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 16:29:55,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 16:29:55,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 04:29:54" (1/3) ... [2019-10-02 16:29:55,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb55adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 04:29:55, skipping insertion in model container [2019-10-02 16:29:55,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:29:54" (2/3) ... [2019-10-02 16:29:55,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb55adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 04:29:55, skipping insertion in model container [2019-10-02 16:29:55,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 04:29:55" (3/3) ... [2019-10-02 16:29:55,149 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_copy5_ground-2.i [2019-10-02 16:29:55,156 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 16:29:55,164 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 16:29:55,176 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 16:29:55,196 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 16:29:55,196 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 16:29:55,196 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 16:29:55,196 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 16:29:55,197 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 16:29:55,197 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 16:29:55,197 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 16:29:55,197 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 16:29:55,212 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-10-02 16:29:55,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-02 16:29:55,220 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:29:55,221 INFO L411 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] [2019-10-02 16:29:55,222 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:29:55,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:29:55,227 INFO L82 PathProgramCache]: Analyzing trace with hash -2095174276, now seen corresponding path program 1 times [2019-10-02 16:29:55,228 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:29:55,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:29:55,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:29:55,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:29:55,279 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:29:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:29:55,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 16:29:55,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:29:55,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 16:29:55,374 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:29:55,378 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 16:29:55,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 16:29:55,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 16:29:55,391 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2019-10-02 16:29:55,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:29:55,409 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2019-10-02 16:29:55,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 16:29:55,410 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2019-10-02 16:29:55,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:29:55,419 INFO L225 Difference]: With dead ends: 39 [2019-10-02 16:29:55,419 INFO L226 Difference]: Without dead ends: 34 [2019-10-02 16:29:55,421 INFO L640 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 [2019-10-02 16:29:55,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-10-02 16:29:55,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-10-02 16:29:55,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-10-02 16:29:55,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2019-10-02 16:29:55,455 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 23 [2019-10-02 16:29:55,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:29:55,455 INFO L475 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2019-10-02 16:29:55,456 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 16:29:55,456 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2019-10-02 16:29:55,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-02 16:29:55,457 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:29:55,457 INFO L411 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] [2019-10-02 16:29:55,457 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:29:55,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:29:55,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1625097866, now seen corresponding path program 1 times [2019-10-02 16:29:55,458 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:29:55,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:29:55,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:29:55,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:29:55,462 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:29:55,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:29:55,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 16:29:55,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:29:55,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 16:29:55,536 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:29:55,537 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 16:29:55,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 16:29:55,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 16:29:55,538 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand 3 states. [2019-10-02 16:29:55,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:29:55,568 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2019-10-02 16:29:55,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 16:29:55,569 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-10-02 16:29:55,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:29:55,570 INFO L225 Difference]: With dead ends: 36 [2019-10-02 16:29:55,570 INFO L226 Difference]: Without dead ends: 36 [2019-10-02 16:29:55,571 INFO L640 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 [2019-10-02 16:29:55,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-02 16:29:55,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2019-10-02 16:29:55,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-10-02 16:29:55,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2019-10-02 16:29:55,578 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 23 [2019-10-02 16:29:55,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:29:55,578 INFO L475 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2019-10-02 16:29:55,578 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 16:29:55,579 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2019-10-02 16:29:55,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-02 16:29:55,580 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:29:55,580 INFO L411 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] [2019-10-02 16:29:55,580 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:29:55,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:29:55,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1623092332, now seen corresponding path program 1 times [2019-10-02 16:29:55,581 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:29:55,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:29:55,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:29:55,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:29:55,583 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:29:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:29:55,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-02 16:29:55,649 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:29:55,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 16:29:55,649 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:29:55,650 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 16:29:55,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 16:29:55,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 16:29:55,651 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 3 states. [2019-10-02 16:29:55,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:29:55,719 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2019-10-02 16:29:55,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 16:29:55,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-02 16:29:55,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:29:55,721 INFO L225 Difference]: With dead ends: 45 [2019-10-02 16:29:55,721 INFO L226 Difference]: Without dead ends: 45 [2019-10-02 16:29:55,721 INFO L640 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 [2019-10-02 16:29:55,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-10-02 16:29:55,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 40. [2019-10-02 16:29:55,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-10-02 16:29:55,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2019-10-02 16:29:55,728 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 25 [2019-10-02 16:29:55,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:29:55,728 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2019-10-02 16:29:55,728 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 16:29:55,728 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2019-10-02 16:29:55,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-02 16:29:55,729 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:29:55,730 INFO L411 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:29:55,730 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:29:55,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:29:55,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1928668694, now seen corresponding path program 1 times [2019-10-02 16:29:55,731 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:29:55,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:29:55,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:29:55,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:29:55,733 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:29:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:29:55,843 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-02 16:29:55,844 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 16:29:55,844 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-02 16:29:55,845 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 36 with the following transitions: [2019-10-02 16:29:55,848 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [11], [13], [15], [19], [25], [27], [29], [33], [39], [41], [43], [47], [53], [55], [57], [61], [67], [69], [71], [75], [81], [83], [85], [89], [97], [107], [110], [112], [118], [119], [120], [122] [2019-10-02 16:29:55,890 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-02 16:29:55,891 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-02 16:29:55,950 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-02 16:29:55,952 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 42 variables. [2019-10-02 16:29:55,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:29:55,955 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-02 16:29:56,005 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-02 16:29:56,006 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-02 16:29:56,009 INFO L420 sIntCurrentIteration]: We unified 34 AI predicates to 34 [2019-10-02 16:29:56,010 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-02 16:29:56,012 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 16:29:56,013 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2019-10-02 16:29:56,013 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:29:56,013 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 16:29:56,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 16:29:56,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 16:29:56,014 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 2 states. [2019-10-02 16:29:56,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:29:56,015 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-10-02 16:29:56,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 16:29:56,017 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 35 [2019-10-02 16:29:56,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:29:56,018 INFO L225 Difference]: With dead ends: 6 [2019-10-02 16:29:56,018 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 16:29:56,019 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 16:29:56,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 16:29:56,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 16:29:56,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 16:29:56,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 16:29:56,020 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-10-02 16:29:56,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:29:56,021 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 16:29:56,021 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 16:29:56,021 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 16:29:56,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 16:29:56,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 04:29:56 BoogieIcfgContainer [2019-10-02 16:29:56,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 16:29:56,029 INFO L168 Benchmark]: Toolchain (without parser) took 1757.75 ms. Allocated memory was 140.0 MB in the beginning and 199.2 MB in the end (delta: 59.2 MB). Free memory was 87.6 MB in the beginning and 100.3 MB in the end (delta: -12.7 MB). Peak memory consumption was 46.6 MB. Max. memory is 7.1 GB. [2019-10-02 16:29:56,030 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 105.8 MB in the beginning and 105.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 16:29:56,031 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.41 ms. Allocated memory is still 140.0 MB. Free memory was 87.4 MB in the beginning and 77.2 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-10-02 16:29:56,032 INFO L168 Benchmark]: Boogie Preprocessor took 136.92 ms. Allocated memory was 140.0 MB in the beginning and 199.2 MB in the end (delta: 59.2 MB). Free memory was 77.2 MB in the beginning and 176.0 MB in the end (delta: -98.8 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-10-02 16:29:56,033 INFO L168 Benchmark]: RCFGBuilder took 414.59 ms. Allocated memory is still 199.2 MB. Free memory was 175.4 MB in the beginning and 155.8 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2019-10-02 16:29:56,034 INFO L168 Benchmark]: TraceAbstraction took 883.17 ms. Allocated memory is still 199.2 MB. Free memory was 155.8 MB in the beginning and 100.3 MB in the end (delta: 55.4 MB). Peak memory consumption was 55.4 MB. Max. memory is 7.1 GB. [2019-10-02 16:29:56,038 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 140.0 MB. Free memory was 105.8 MB in the beginning and 105.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 319.41 ms. Allocated memory is still 140.0 MB. Free memory was 87.4 MB in the beginning and 77.2 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.92 ms. Allocated memory was 140.0 MB in the beginning and 199.2 MB in the end (delta: 59.2 MB). Free memory was 77.2 MB in the beginning and 176.0 MB in the end (delta: -98.8 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 414.59 ms. Allocated memory is still 199.2 MB. Free memory was 175.4 MB in the beginning and 155.8 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 883.17 ms. Allocated memory is still 199.2 MB. Free memory was 155.8 MB in the beginning and 100.3 MB in the end (delta: 55.4 MB). Peak memory consumption was 55.4 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 39 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 118 SDtfs, 6 SDslu, 56 SDs, 0 SdLazy, 30 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9044117647058824 AbsIntWeakeningRatio, 1.0588235294117647 AbsIntAvgWeakeningVarsNumRemoved, 0.17647058823529413 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 2996 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 6/7 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...