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/loop-invgen/id_build.i.p+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:04:37,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:04:37,543 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:04:37,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 02:04:37,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:04:37,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:04:37,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:04:37,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:04:37,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:04:37,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:04:37,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:04:37,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:04:37,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:04:37,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:04:37,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:04:37,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:04:37,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-10 02:04:37,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:04:37,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:04:37,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:04:37,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:04:37,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:04:37,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:04:37,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:04:37,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:04:37,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:04:37,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:04:37,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:04:37,594 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 [2019-09-10 02:04:37,620 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:04:37,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:04:37,621 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:04:37,621 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:04:37,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:04:37,623 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:04:37,623 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:04:37,623 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:04:37,624 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:04:37,624 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:04:37,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:04:37,625 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:04:37,625 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:04:37,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:04:37,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:04:37,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:04:37,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:04:37,627 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:04:37,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:04:37,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:04:37,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:04:37,627 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:04:37,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:04:37,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:04:37,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:04:37,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:04:37,629 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:04:37,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:04:37,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:04:37,629 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:04:37,660 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:04:37,671 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:04:37,674 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:04:37,675 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:04:37,676 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:04:37,676 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i.p+nlh-reducer.c [2019-09-10 02:04:37,734 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/361cae419/5fae0f406bd34fc1a140f3d2585fa4a5/FLAGdb08cd5e0 [2019-09-10 02:04:38,215 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:04:38,216 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+nlh-reducer.c [2019-09-10 02:04:38,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/361cae419/5fae0f406bd34fc1a140f3d2585fa4a5/FLAGdb08cd5e0 [2019-09-10 02:04:38,486 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/361cae419/5fae0f406bd34fc1a140f3d2585fa4a5 [2019-09-10 02:04:38,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:04:38,501 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:04:38,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:04:38,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:04:38,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:04:38,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:04:38" (1/1) ... [2019-09-10 02:04:38,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13e5fcb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:38, skipping insertion in model container [2019-09-10 02:04:38,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:04:38" (1/1) ... [2019-09-10 02:04:38,518 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:04:38,604 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:04:39,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:04:39,247 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:04:39,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:04:39,490 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:04:39,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:39 WrapperNode [2019-09-10 02:04:39,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:04:39,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:04:39,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:04:39,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:04:39,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:39" (1/1) ... [2019-09-10 02:04:39,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:39" (1/1) ... [2019-09-10 02:04:39,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:39" (1/1) ... [2019-09-10 02:04:39,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:39" (1/1) ... [2019-09-10 02:04:39,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:39" (1/1) ... [2019-09-10 02:04:39,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:39" (1/1) ... [2019-09-10 02:04:39,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:39" (1/1) ... [2019-09-10 02:04:39,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:04:39,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:04:39,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:04:39,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:04:39,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:04:39,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:04:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:04:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:04:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:04:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 02:04:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-10 02:04:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:04:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:04:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:04:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:04:41,199 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:04:41,200 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 02:04:41,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:04:41 BoogieIcfgContainer [2019-09-10 02:04:41,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:04:41,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:04:41,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:04:41,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:04:41,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:04:38" (1/3) ... [2019-09-10 02:04:41,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487f4f13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:04:41, skipping insertion in model container [2019-09-10 02:04:41,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:39" (2/3) ... [2019-09-10 02:04:41,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487f4f13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:04:41, skipping insertion in model container [2019-09-10 02:04:41,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:04:41" (3/3) ... [2019-09-10 02:04:41,216 INFO L109 eAbstractionObserver]: Analyzing ICFG id_build.i.p+nlh-reducer.c [2019-09-10 02:04:41,225 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:04:41,236 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-09-10 02:04:41,252 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-09-10 02:04:41,290 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:04:41,290 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:04:41,291 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:04:41,291 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:04:41,291 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:04:41,291 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:04:41,291 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:04:41,292 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:04:41,325 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states. [2019-09-10 02:04:41,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-09-10 02:04:41,364 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:04:41,365 INFO L399 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, 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, 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, 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, 1] [2019-09-10 02:04:41,367 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:04:41,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:04:41,371 INFO L82 PathProgramCache]: Analyzing trace with hash 660555009, now seen corresponding path program 1 times [2019-09-10 02:04:41,373 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:04:41,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:04:41,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:04:41,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:04:41,414 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:04:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:04:41,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:04:41,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:04:41,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:04:41,957 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:04:41,962 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:04:41,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:04:41,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:04:41,980 INFO L87 Difference]: Start difference. First operand 256 states. Second operand 5 states. [2019-09-10 02:04:42,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:04:42,598 INFO L93 Difference]: Finished difference Result 265 states and 499 transitions. [2019-09-10 02:04:42,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:04:42,600 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2019-09-10 02:04:42,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:04:42,628 INFO L225 Difference]: With dead ends: 265 [2019-09-10 02:04:42,629 INFO L226 Difference]: Without dead ends: 257 [2019-09-10 02:04:42,632 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:04:42,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2019-09-10 02:04:42,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 250. [2019-09-10 02:04:42,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2019-09-10 02:04:42,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 287 transitions. [2019-09-10 02:04:42,742 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 287 transitions. Word has length 141 [2019-09-10 02:04:42,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:04:42,748 INFO L475 AbstractCegarLoop]: Abstraction has 250 states and 287 transitions. [2019-09-10 02:04:42,748 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:04:42,748 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 287 transitions. [2019-09-10 02:04:42,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-09-10 02:04:42,757 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:04:42,758 INFO L399 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, 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, 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, 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, 1, 1, 1] [2019-09-10 02:04:42,759 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:04:42,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:04:42,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1463397132, now seen corresponding path program 1 times [2019-09-10 02:04:42,761 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:04:42,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:04:42,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:04:42,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:04:42,762 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:04:42,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:04:42,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:04:42,954 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:04:42,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:04:42,954 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:04:42,957 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:04:42,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:04:42,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:04:42,958 INFO L87 Difference]: Start difference. First operand 250 states and 287 transitions. Second operand 5 states. [2019-09-10 02:04:43,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:04:43,473 INFO L93 Difference]: Finished difference Result 260 states and 300 transitions. [2019-09-10 02:04:43,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:04:43,473 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2019-09-10 02:04:43,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:04:43,474 INFO L225 Difference]: With dead ends: 260 [2019-09-10 02:04:43,474 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:04:43,475 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:04:43,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:04:43,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:04:43,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:04:43,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:04:43,476 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 143 [2019-09-10 02:04:43,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:04:43,478 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:04:43,479 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:04:43,479 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:04:43,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:04:43,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:04:43 BoogieIcfgContainer [2019-09-10 02:04:43,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:04:43,487 INFO L168 Benchmark]: Toolchain (without parser) took 4988.37 ms. Allocated memory was 133.7 MB in the beginning and 263.2 MB in the end (delta: 129.5 MB). Free memory was 86.9 MB in the beginning and 197.8 MB in the end (delta: -110.9 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:04:43,488 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 133.7 MB. Free memory was 107.0 MB in the beginning and 106.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-09-10 02:04:43,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 989.13 ms. Allocated memory was 133.7 MB in the beginning and 201.9 MB in the end (delta: 68.2 MB). Free memory was 86.7 MB in the beginning and 159.7 MB in the end (delta: -73.1 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:04:43,490 INFO L168 Benchmark]: Boogie Preprocessor took 149.72 ms. Allocated memory is still 201.9 MB. Free memory was 159.7 MB in the beginning and 155.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:04:43,491 INFO L168 Benchmark]: RCFGBuilder took 1560.24 ms. Allocated memory was 201.9 MB in the beginning and 227.5 MB in the end (delta: 25.7 MB). Free memory was 155.0 MB in the beginning and 137.4 MB in the end (delta: 17.6 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:04:43,492 INFO L168 Benchmark]: TraceAbstraction took 2281.11 ms. Allocated memory was 227.5 MB in the beginning and 263.2 MB in the end (delta: 35.7 MB). Free memory was 136.0 MB in the beginning and 197.8 MB in the end (delta: -61.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:04:43,496 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 133.7 MB. Free memory was 107.0 MB in the beginning and 106.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 989.13 ms. Allocated memory was 133.7 MB in the beginning and 201.9 MB in the end (delta: 68.2 MB). Free memory was 86.7 MB in the beginning and 159.7 MB in the end (delta: -73.1 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 149.72 ms. Allocated memory is still 201.9 MB. Free memory was 159.7 MB in the beginning and 155.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1560.24 ms. Allocated memory was 201.9 MB in the beginning and 227.5 MB in the end (delta: 25.7 MB). Free memory was 155.0 MB in the beginning and 137.4 MB in the end (delta: 17.6 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2281.11 ms. Allocated memory was 227.5 MB in the beginning and 263.2 MB in the end (delta: 35.7 MB). Free memory was 136.0 MB in the beginning and 197.8 MB in the end (delta: -61.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1775]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1758]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 256 locations, 2 error locations. SAFE Result, 2.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 451 SDtfs, 872 SDslu, 786 SDs, 0 SdLazy, 942 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 86198 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...