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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label14.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:52:10,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:52:10,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:52:10,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:52:10,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:52:10,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:52:10,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:52:10,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:52:10,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:52:10,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:52:10,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:52:10,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:52:10,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:52:10,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:52:10,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:52:10,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:52:10,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:52:10,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:52:10,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:52:10,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:52:10,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:52:10,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:52:10,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:52:10,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:52:10,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:52:10,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:52:10,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:52:10,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:52:10,518 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:52:10,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:52:10,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:52:10,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:52:10,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:52:10,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:52:10,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:52:10,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:52:10,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:52:10,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:52:10,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:52:10,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:52:10,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:52:10,529 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:52:10,543 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:52:10,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:52:10,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:52:10,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:52:10,545 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:52:10,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:52:10,546 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:52:10,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:52:10,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:52:10,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:52:10,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:52:10,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:52:10,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:52:10,547 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:52:10,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:52:10,548 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:52:10,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:52:10,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:52:10,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:52:10,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:52:10,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:52:10,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:52:10,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:52:10,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:52:10,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:52:10,550 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:52:10,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:52:10,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:52:10,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 21:52:10,839 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:52:10,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:52:10,863 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:52:10,865 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:52:10,865 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:52:10,866 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label14.c [2019-10-13 21:52:10,937 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7084f23c8/c453b949ea8d4a72aa1a3c76a4a788a2/FLAG4bcb5c28a [2019-10-13 21:52:11,672 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:52:11,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label14.c [2019-10-13 21:52:11,700 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7084f23c8/c453b949ea8d4a72aa1a3c76a4a788a2/FLAG4bcb5c28a [2019-10-13 21:52:11,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7084f23c8/c453b949ea8d4a72aa1a3c76a4a788a2 [2019-10-13 21:52:11,799 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:52:11,800 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:52:11,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:52:11,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:52:11,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:52:11,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:52:11" (1/1) ... [2019-10-13 21:52:11,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc80f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:11, skipping insertion in model container [2019-10-13 21:52:11,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:52:11" (1/1) ... [2019-10-13 21:52:11,821 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:52:11,907 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:52:12,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:52:12,845 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:52:13,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:52:13,232 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:52:13,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:13 WrapperNode [2019-10-13 21:52:13,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:52:13,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:52:13,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:52:13,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:52:13,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:13" (1/1) ... [2019-10-13 21:52:13,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:13" (1/1) ... [2019-10-13 21:52:13,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:13" (1/1) ... [2019-10-13 21:52:13,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:13" (1/1) ... [2019-10-13 21:52:13,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:13" (1/1) ... [2019-10-13 21:52:13,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:13" (1/1) ... [2019-10-13 21:52:13,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:13" (1/1) ... [2019-10-13 21:52:13,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:52:13,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:52:13,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:52:13,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:52:13,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:52:13,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:52:13,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:52:13,528 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-13 21:52:13,529 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-10-13 21:52:13,529 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:52:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-13 21:52:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-10-13 21:52:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:52:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:52:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 21:52:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:52:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:52:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:52:20,814 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:52:20,815 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 21:52:20,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:52:20 BoogieIcfgContainer [2019-10-13 21:52:20,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:52:20,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:52:20,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:52:20,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:52:20,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:52:11" (1/3) ... [2019-10-13 21:52:20,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d124b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:52:20, skipping insertion in model container [2019-10-13 21:52:20,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:52:13" (2/3) ... [2019-10-13 21:52:20,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d124b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:52:20, skipping insertion in model container [2019-10-13 21:52:20,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:52:20" (3/3) ... [2019-10-13 21:52:20,829 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem15_label14.c [2019-10-13 21:52:20,841 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:52:20,851 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:52:20,863 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:52:20,905 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:52:20,906 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:52:20,906 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:52:20,906 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:52:20,906 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:52:20,907 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:52:20,907 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:52:20,907 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:52:20,942 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states. [2019-10-13 21:52:20,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-13 21:52:20,950 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:52:20,952 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:52:20,953 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:52:20,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:52:20,960 INFO L82 PathProgramCache]: Analyzing trace with hash 648043117, now seen corresponding path program 1 times [2019-10-13 21:52:20,970 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:52:20,971 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346104067] [2019-10-13 21:52:20,971 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:52:20,971 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:52:20,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:52:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:52:21,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:52:21,210 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346104067] [2019-10-13 21:52:21,211 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:52:21,211 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:52:21,211 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443764123] [2019-10-13 21:52:21,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:52:21,216 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:52:21,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:52:21,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:52:21,234 INFO L87 Difference]: Start difference. First operand 244 states. Second operand 4 states. [2019-10-13 21:52:26,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:52:26,036 INFO L93 Difference]: Finished difference Result 953 states and 1852 transitions. [2019-10-13 21:52:26,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:52:26,037 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-13 21:52:26,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:52:26,061 INFO L225 Difference]: With dead ends: 953 [2019-10-13 21:52:26,061 INFO L226 Difference]: Without dead ends: 702 [2019-10-13 21:52:26,070 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:52:26,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2019-10-13 21:52:26,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 691. [2019-10-13 21:52:26,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2019-10-13 21:52:26,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1133 transitions. [2019-10-13 21:52:26,182 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1133 transitions. Word has length 11 [2019-10-13 21:52:26,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:52:26,182 INFO L462 AbstractCegarLoop]: Abstraction has 691 states and 1133 transitions. [2019-10-13 21:52:26,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:52:26,183 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1133 transitions. [2019-10-13 21:52:26,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-13 21:52:26,186 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:52:26,186 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:52:26,188 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:52:26,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:52:26,188 INFO L82 PathProgramCache]: Analyzing trace with hash 836538840, now seen corresponding path program 1 times [2019-10-13 21:52:26,189 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:52:26,190 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624202223] [2019-10-13 21:52:26,190 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:52:26,190 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:52:26,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:52:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:52:26,337 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:52:26,338 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624202223] [2019-10-13 21:52:26,339 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:52:26,339 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:52:26,339 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838699382] [2019-10-13 21:52:26,340 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:52:26,341 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:52:26,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:52:26,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:52:26,341 INFO L87 Difference]: Start difference. First operand 691 states and 1133 transitions. Second operand 4 states. [2019-10-13 21:52:34,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:52:34,812 INFO L93 Difference]: Finished difference Result 2745 states and 4570 transitions. [2019-10-13 21:52:34,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:52:34,815 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-10-13 21:52:34,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:52:34,833 INFO L225 Difference]: With dead ends: 2745 [2019-10-13 21:52:34,833 INFO L226 Difference]: Without dead ends: 2059 [2019-10-13 21:52:34,837 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:52:34,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2019-10-13 21:52:34,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 2057. [2019-10-13 21:52:34,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2057 states. [2019-10-13 21:52:34,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 3023 transitions. [2019-10-13 21:52:34,936 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 3023 transitions. Word has length 21 [2019-10-13 21:52:34,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:52:34,937 INFO L462 AbstractCegarLoop]: Abstraction has 2057 states and 3023 transitions. [2019-10-13 21:52:34,937 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:52:34,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 3023 transitions. [2019-10-13 21:52:34,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-13 21:52:34,953 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:52:34,953 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:52:34,953 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:52:34,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:52:34,955 INFO L82 PathProgramCache]: Analyzing trace with hash 585847024, now seen corresponding path program 1 times [2019-10-13 21:52:34,955 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:52:34,956 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11378961] [2019-10-13 21:52:34,957 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:52:34,957 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:52:34,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:52:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:52:35,224 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-13 21:52:35,224 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11378961] [2019-10-13 21:52:35,224 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945919573] [2019-10-13 21:52:35,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:52:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:52:35,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-13 21:52:35,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:52:35,508 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 21:52:35,508 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:52:35,647 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 23 proven. 49 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-13 21:52:35,648 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [819751105] [2019-10-13 21:52:35,677 INFO L162 IcfgInterpreter]: Started Sifa with 43 locations of interest [2019-10-13 21:52:35,677 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 21:52:35,685 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 21:52:35,694 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 21:52:35,695 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 21:52:35,948 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 58 for LOIs [2019-10-13 21:52:36,097 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2019-10-13 21:52:36,140 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2019-10-13 21:52:36,195 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 52 [2019-10-13 21:52:36,670 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 8462 conjuctions. This might take some time... [2019-10-13 21:52:36,790 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 52 [2019-10-13 21:52:37,104 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 8462 conjuctions. This might take some time... [2019-10-13 21:52:37,489 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:52:37,491 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: assume true; at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: assume true; at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:118) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:178) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:169) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) ... 21 more [2019-10-13 21:52:37,501 INFO L168 Benchmark]: Toolchain (without parser) took 25697.01 ms. Allocated memory was 138.9 MB in the beginning and 433.1 MB in the end (delta: 294.1 MB). Free memory was 96.9 MB in the beginning and 250.4 MB in the end (delta: -153.5 MB). Peak memory consumption was 140.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:52:37,502 INFO L168 Benchmark]: CDTParser took 1.34 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 21:52:37,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1429.50 ms. Allocated memory was 138.9 MB in the beginning and 206.0 MB in the end (delta: 67.1 MB). Free memory was 96.7 MB in the beginning and 112.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 56.4 MB. Max. memory is 7.1 GB. [2019-10-13 21:52:37,506 INFO L168 Benchmark]: Boogie Preprocessor took 222.92 ms. Allocated memory is still 206.0 MB. Free memory was 112.6 MB in the beginning and 100.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:52:37,507 INFO L168 Benchmark]: RCFGBuilder took 7360.37 ms. Allocated memory was 206.0 MB in the beginning and 300.4 MB in the end (delta: 94.4 MB). Free memory was 100.0 MB in the beginning and 220.1 MB in the end (delta: -120.1 MB). Peak memory consumption was 117.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:52:37,514 INFO L168 Benchmark]: TraceAbstraction took 16677.46 ms. Allocated memory was 300.4 MB in the beginning and 433.1 MB in the end (delta: 132.6 MB). Free memory was 220.1 MB in the beginning and 250.4 MB in the end (delta: -30.3 MB). Peak memory consumption was 102.3 MB. Max. memory is 7.1 GB. [2019-10-13 21:52:37,528 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.34 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1429.50 ms. Allocated memory was 138.9 MB in the beginning and 206.0 MB in the end (delta: 67.1 MB). Free memory was 96.7 MB in the beginning and 112.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 56.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 222.92 ms. Allocated memory is still 206.0 MB. Free memory was 112.6 MB in the beginning and 100.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7360.37 ms. Allocated memory was 206.0 MB in the beginning and 300.4 MB in the end (delta: 94.4 MB). Free memory was 100.0 MB in the beginning and 220.1 MB in the end (delta: -120.1 MB). Peak memory consumption was 117.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16677.46 ms. Allocated memory was 300.4 MB in the beginning and 433.1 MB in the end (delta: 132.6 MB). Free memory was 220.1 MB in the beginning and 250.4 MB in the end (delta: -30.3 MB). Peak memory consumption was 102.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: assume true; de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: assume true;: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...