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/Problem02_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:41:16,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:41:16,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:41:16,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:41:16,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:41:16,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:41:16,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:41:16,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:41:16,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:41:16,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:41:16,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:41:16,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:41:16,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:41:16,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:41:16,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:41:16,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:41:16,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:41:16,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:41:16,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:41:16,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:41:16,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:41:16,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:41:16,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:41:16,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:41:16,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:41:16,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:41:16,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:41:16,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:41:16,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:41:16,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:41:16,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:41:16,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:41:16,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:41:16,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:41:16,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:41:16,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:41:16,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:41:16,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:41:16,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:41:16,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:41:16,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:41:16,992 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 21:41:17,029 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:41:17,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:41:17,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:41:17,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:41:17,031 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:41:17,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:41:17,031 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:41:17,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:41:17,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:41:17,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:41:17,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:41:17,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:41:17,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:41:17,033 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:41:17,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:41:17,037 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:41:17,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:41:17,038 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:41:17,038 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:41:17,038 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:41:17,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:41:17,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:41:17,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:41:17,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:41:17,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:41:17,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:41:17,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:41:17,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:41:17,040 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 21:41:17,337 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:41:17,351 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:41:17,355 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:41:17,356 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:41:17,357 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:41:17,358 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label34.c [2019-10-13 21:41:17,438 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e2f90f79/582ae75201914436998d982c445e92cd/FLAG9ee4a09dc [2019-10-13 21:41:18,043 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:41:18,044 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label34.c [2019-10-13 21:41:18,067 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e2f90f79/582ae75201914436998d982c445e92cd/FLAG9ee4a09dc [2019-10-13 21:41:18,273 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e2f90f79/582ae75201914436998d982c445e92cd [2019-10-13 21:41:18,284 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:41:18,285 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:41:18,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:41:18,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:41:18,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:41:18,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:41:18" (1/1) ... [2019-10-13 21:41:18,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2504eb85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:18, skipping insertion in model container [2019-10-13 21:41:18,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:41:18" (1/1) ... [2019-10-13 21:41:18,307 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:41:18,350 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:41:18,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:41:18,817 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:41:19,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:41:19,043 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:41:19,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:19 WrapperNode [2019-10-13 21:41:19,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:41:19,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:41:19,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:41:19,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:41:19,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:19" (1/1) ... [2019-10-13 21:41:19,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:19" (1/1) ... [2019-10-13 21:41:19,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:19" (1/1) ... [2019-10-13 21:41:19,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:19" (1/1) ... [2019-10-13 21:41:19,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:19" (1/1) ... [2019-10-13 21:41:19,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:19" (1/1) ... [2019-10-13 21:41:19,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:19" (1/1) ... [2019-10-13 21:41:19,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:41:19,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:41:19,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:41:19,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:41:19,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:19" (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 21:41:19,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:41:19,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:41:19,244 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-13 21:41:19,244 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:41:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-13 21:41:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:41:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:41:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 21:41:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:41:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:41:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:41:21,564 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:41:21,567 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 21:41:21,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:41:21 BoogieIcfgContainer [2019-10-13 21:41:21,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:41:21,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:41:21,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:41:21,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:41:21,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:41:18" (1/3) ... [2019-10-13 21:41:21,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721dcc60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:41:21, skipping insertion in model container [2019-10-13 21:41:21,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:19" (2/3) ... [2019-10-13 21:41:21,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721dcc60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:41:21, skipping insertion in model container [2019-10-13 21:41:21,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:41:21" (3/3) ... [2019-10-13 21:41:21,586 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label34.c [2019-10-13 21:41:21,597 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:41:21,607 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:41:21,618 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:41:21,650 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:41:21,650 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:41:21,650 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:41:21,650 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:41:21,651 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:41:21,651 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:41:21,651 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:41:21,651 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:41:21,683 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-10-13 21:41:21,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-13 21:41:21,695 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:41:21,696 INFO L380 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] [2019-10-13 21:41:21,698 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:41:21,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:41:21,703 INFO L82 PathProgramCache]: Analyzing trace with hash -219366089, now seen corresponding path program 1 times [2019-10-13 21:41:21,710 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:41:21,711 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179699082] [2019-10-13 21:41:21,711 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:41:21,711 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:41:21,711 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:41:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:41:22,170 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 21:41:22,171 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179699082] [2019-10-13 21:41:22,171 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:41:22,172 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:41:22,172 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383983371] [2019-10-13 21:41:22,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:41:22,180 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:41:22,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:41:22,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:41:22,197 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 3 states. [2019-10-13 21:41:22,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:41:22,778 INFO L93 Difference]: Finished difference Result 273 states and 508 transitions. [2019-10-13 21:41:22,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:41:22,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2019-10-13 21:41:22,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:41:22,799 INFO L225 Difference]: With dead ends: 273 [2019-10-13 21:41:22,799 INFO L226 Difference]: Without dead ends: 175 [2019-10-13 21:41:22,803 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:41:22,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-10-13 21:41:22,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2019-10-13 21:41:22,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-10-13 21:41:22,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 327 transitions. [2019-10-13 21:41:22,887 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 327 transitions. Word has length 86 [2019-10-13 21:41:22,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:41:22,888 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 327 transitions. [2019-10-13 21:41:22,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:41:22,889 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 327 transitions. [2019-10-13 21:41:22,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-13 21:41:22,898 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:41:22,898 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2019-10-13 21:41:22,898 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:41:22,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:41:22,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1874061426, now seen corresponding path program 1 times [2019-10-13 21:41:22,901 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:41:22,901 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338110700] [2019-10-13 21:41:22,901 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:41:22,901 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:41:22,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:41:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:41:23,091 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:41:23,092 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338110700] [2019-10-13 21:41:23,092 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:41:23,093 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:41:23,093 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177240423] [2019-10-13 21:41:23,095 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:41:23,095 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:41:23,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:41:23,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:41:23,096 INFO L87 Difference]: Start difference. First operand 175 states and 327 transitions. Second operand 6 states. [2019-10-13 21:41:23,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:41:23,899 INFO L93 Difference]: Finished difference Result 549 states and 1065 transitions. [2019-10-13 21:41:23,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:41:23,901 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2019-10-13 21:41:23,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:41:23,915 INFO L225 Difference]: With dead ends: 549 [2019-10-13 21:41:23,915 INFO L226 Difference]: Without dead ends: 379 [2019-10-13 21:41:23,917 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:41:23,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-10-13 21:41:23,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 355. [2019-10-13 21:41:23,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2019-10-13 21:41:23,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 642 transitions. [2019-10-13 21:41:23,979 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 642 transitions. Word has length 101 [2019-10-13 21:41:23,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:41:23,979 INFO L462 AbstractCegarLoop]: Abstraction has 355 states and 642 transitions. [2019-10-13 21:41:23,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:41:23,980 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 642 transitions. [2019-10-13 21:41:23,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-10-13 21:41:23,983 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:41:23,983 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2019-10-13 21:41:23,983 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:41:23,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:41:23,984 INFO L82 PathProgramCache]: Analyzing trace with hash 750781033, now seen corresponding path program 1 times [2019-10-13 21:41:23,984 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:41:23,984 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001886836] [2019-10-13 21:41:23,984 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:41:23,985 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:41:23,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:41:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:41:24,142 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-13 21:41:24,143 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001886836] [2019-10-13 21:41:24,143 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128814350] [2019-10-13 21:41:24,143 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 21:41:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:41:24,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 21:41:24,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:41:24,330 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:41:24,331 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:41:24,412 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:41:24,412 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1463447672] [2019-10-13 21:41:24,470 INFO L162 IcfgInterpreter]: Started Sifa with 90 locations of interest [2019-10-13 21:41:24,470 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 21:41:24,478 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 21:41:24,488 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 21:41:24,489 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 21:41:24,839 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 89 for LOIs [2019-10-13 21:41:25,384 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:41:25,386 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 21:41:25,399 INFO L168 Benchmark]: Toolchain (without parser) took 7111.23 ms. Allocated memory was 140.0 MB in the beginning and 287.8 MB in the end (delta: 147.8 MB). Free memory was 103.8 MB in the beginning and 148.6 MB in the end (delta: -44.8 MB). Peak memory consumption was 103.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:41:25,402 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 21:41:25,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 755.09 ms. Allocated memory was 140.0 MB in the beginning and 207.1 MB in the end (delta: 67.1 MB). Free memory was 103.5 MB in the beginning and 174.4 MB in the end (delta: -70.9 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2019-10-13 21:41:25,408 INFO L168 Benchmark]: Boogie Preprocessor took 111.12 ms. Allocated memory is still 207.1 MB. Free memory was 174.4 MB in the beginning and 169.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:41:25,409 INFO L168 Benchmark]: RCFGBuilder took 2413.41 ms. Allocated memory was 207.1 MB in the beginning and 248.5 MB in the end (delta: 41.4 MB). Free memory was 169.5 MB in the beginning and 191.4 MB in the end (delta: -21.9 MB). Peak memory consumption was 112.1 MB. Max. memory is 7.1 GB. [2019-10-13 21:41:25,416 INFO L168 Benchmark]: TraceAbstraction took 3821.34 ms. Allocated memory was 248.5 MB in the beginning and 287.8 MB in the end (delta: 39.3 MB). Free memory was 191.4 MB in the beginning and 148.6 MB in the end (delta: 42.9 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. [2019-10-13 21:41:25,424 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 123.2 MB in the beginning and 123.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 755.09 ms. Allocated memory was 140.0 MB in the beginning and 207.1 MB in the end (delta: 67.1 MB). Free memory was 103.5 MB in the beginning and 174.4 MB in the end (delta: -70.9 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.12 ms. Allocated memory is still 207.1 MB. Free memory was 174.4 MB in the beginning and 169.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2413.41 ms. Allocated memory was 207.1 MB in the beginning and 248.5 MB in the end (delta: 41.4 MB). Free memory was 169.5 MB in the beginning and 191.4 MB in the end (delta: -21.9 MB). Peak memory consumption was 112.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3821.34 ms. Allocated memory was 248.5 MB in the beginning and 287.8 MB in the end (delta: 39.3 MB). Free memory was 191.4 MB in the beginning and 148.6 MB in the end (delta: 42.9 MB). Peak memory consumption was 82.2 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...