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/Problem03_label16.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:41:40,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:41:40,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:41:40,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:41:40,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:41:40,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:41:40,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:41:40,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:41:40,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:41:40,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:41:40,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:41:40,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:41:40,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:41:40,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:41:40,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:41:40,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:41:40,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:41:40,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:41:40,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:41:40,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:41:40,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:41:40,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:41:40,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:41:40,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:41:40,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 21:41:40,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:41:40,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:41:40,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:41:40,648 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 21:41:40,683 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:41:40,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:41:40,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:41:40,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:41:40,687 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:41:40,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:41:40,689 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:41:40,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:41:40,689 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:41:40,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:41:40,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:41:40,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:41:40,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:41:40,690 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:41:40,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:41:40,690 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:41:40,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:41:40,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:41:40,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:41:40,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:41:40,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:41:40,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:41:40,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:41:40,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:41:40,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:41:40,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:41:40,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:41:40,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:41:40,694 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 21:41:40,964 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:41:40,977 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:41:40,981 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:41:40,983 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:41:40,983 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:41:40,984 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label16.c [2019-10-13 21:41:41,062 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ca184df7/30e9bc2344cc4b0fadd90811b0c9c78f/FLAGb1ebdf0bf [2019-10-13 21:41:41,768 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:41:41,770 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label16.c [2019-10-13 21:41:41,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ca184df7/30e9bc2344cc4b0fadd90811b0c9c78f/FLAGb1ebdf0bf [2019-10-13 21:41:41,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ca184df7/30e9bc2344cc4b0fadd90811b0c9c78f [2019-10-13 21:41:41,940 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:41:41,941 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:41:41,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:41:41,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:41:41,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:41:41,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:41:41" (1/1) ... [2019-10-13 21:41:41,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c54825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:41, skipping insertion in model container [2019-10-13 21:41:41,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:41:41" (1/1) ... [2019-10-13 21:41:41,958 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:41:42,048 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:41:42,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:41:42,811 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:41:43,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:41:43,135 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:41:43,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:43 WrapperNode [2019-10-13 21:41:43,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:41:43,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:41:43,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:41:43,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:41:43,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:43" (1/1) ... [2019-10-13 21:41:43,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:43" (1/1) ... [2019-10-13 21:41:43,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:43" (1/1) ... [2019-10-13 21:41:43,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:43" (1/1) ... [2019-10-13 21:41:43,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:43" (1/1) ... [2019-10-13 21:41:43,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:43" (1/1) ... [2019-10-13 21:41:43,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:43" (1/1) ... [2019-10-13 21:41:43,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:41:43,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:41:43,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:41:43,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:41:43,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:43" (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 21:41:43,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:41:43,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:41:43,384 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-13 21:41:43,384 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:41:43,385 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-13 21:41:43,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:41:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:41:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 21:41:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:41:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:41:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:41:46,545 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:41:46,545 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 21:41:46,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:41:46 BoogieIcfgContainer [2019-10-13 21:41:46,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:41:46,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:41:46,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:41:46,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:41:46,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:41:41" (1/3) ... [2019-10-13 21:41:46,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf7aba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:41:46, skipping insertion in model container [2019-10-13 21:41:46,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:41:43" (2/3) ... [2019-10-13 21:41:46,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bf7aba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:41:46, skipping insertion in model container [2019-10-13 21:41:46,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:41:46" (3/3) ... [2019-10-13 21:41:46,567 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem03_label16.c [2019-10-13 21:41:46,579 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:41:46,589 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:41:46,601 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:41:46,639 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:41:46,639 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:41:46,639 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:41:46,640 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:41:46,640 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:41:46,640 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:41:46,641 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:41:46,641 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:41:46,677 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states. [2019-10-13 21:41:46,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-13 21:41:46,699 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:41:46,700 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:41:46,703 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:41:46,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:41:46,710 INFO L82 PathProgramCache]: Analyzing trace with hash 136469286, now seen corresponding path program 1 times [2019-10-13 21:41:46,720 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:41:46,721 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527890259] [2019-10-13 21:41:46,721 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:41:46,721 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:41:46,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:41:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:41:47,482 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 21:41:47,483 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527890259] [2019-10-13 21:41:47,484 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:41:47,484 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:41:47,485 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937397021] [2019-10-13 21:41:47,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:41:47,491 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:41:47,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:41:47,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:41:47,512 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 3 states. [2019-10-13 21:41:48,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:41:48,671 INFO L93 Difference]: Finished difference Result 462 states and 886 transitions. [2019-10-13 21:41:48,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:41:48,673 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-10-13 21:41:48,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:41:48,703 INFO L225 Difference]: With dead ends: 462 [2019-10-13 21:41:48,703 INFO L226 Difference]: Without dead ends: 301 [2019-10-13 21:41:48,710 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 21:41:48,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2019-10-13 21:41:48,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2019-10-13 21:41:48,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2019-10-13 21:41:48,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 529 transitions. [2019-10-13 21:41:48,786 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 529 transitions. Word has length 149 [2019-10-13 21:41:48,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:41:48,787 INFO L462 AbstractCegarLoop]: Abstraction has 301 states and 529 transitions. [2019-10-13 21:41:48,787 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:41:48,787 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 529 transitions. [2019-10-13 21:41:48,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-13 21:41:48,792 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:41:48,793 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:41:48,793 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:41:48,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:41:48,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1532432622, now seen corresponding path program 1 times [2019-10-13 21:41:48,794 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:41:48,794 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940531133] [2019-10-13 21:41:48,794 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:41:48,795 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:41:48,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:41:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:41:49,075 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:41:49,075 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940531133] [2019-10-13 21:41:49,075 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:41:49,076 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:41:49,076 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682272426] [2019-10-13 21:41:49,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:41:49,078 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 21:41:49,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:41:49,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:41:49,079 INFO L87 Difference]: Start difference. First operand 301 states and 529 transitions. Second operand 3 states. [2019-10-13 21:41:49,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:41:49,996 INFO L93 Difference]: Finished difference Result 891 states and 1588 transitions. [2019-10-13 21:41:49,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:41:49,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-10-13 21:41:49,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:41:50,003 INFO L225 Difference]: With dead ends: 891 [2019-10-13 21:41:50,004 INFO L226 Difference]: Without dead ends: 595 [2019-10-13 21:41:50,007 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 21:41:50,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2019-10-13 21:41:50,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 595. [2019-10-13 21:41:50,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2019-10-13 21:41:50,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 1019 transitions. [2019-10-13 21:41:50,046 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 1019 transitions. Word has length 161 [2019-10-13 21:41:50,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:41:50,047 INFO L462 AbstractCegarLoop]: Abstraction has 595 states and 1019 transitions. [2019-10-13 21:41:50,048 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:41:50,048 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 1019 transitions. [2019-10-13 21:41:50,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-13 21:41:50,054 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:41:50,055 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:41:50,055 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:41:50,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:41:50,056 INFO L82 PathProgramCache]: Analyzing trace with hash -924627422, now seen corresponding path program 1 times [2019-10-13 21:41:50,056 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 21:41:50,056 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445792846] [2019-10-13 21:41:50,056 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:41:50,057 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:41:50,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:41:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:41:50,175 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:41:50,176 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445792846] [2019-10-13 21:41:50,176 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688474069] [2019-10-13 21:41:50,176 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 21:41:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:41:50,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 21:41:50,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:41:50,618 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:41:50,618 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:41:50,765 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:41:50,765 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [558646180] [2019-10-13 21:41:50,808 INFO L162 IcfgInterpreter]: Started Sifa with 153 locations of interest [2019-10-13 21:41:50,808 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 21:41:50,816 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 21:41:50,826 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 21:41:50,827 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 21:41:51,260 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2019-10-13 21:41:51,824 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 208 for LOIs [2019-10-13 21:41:52,137 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 298 [2019-10-13 21:41:52,424 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2019-10-13 21:41:52,713 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2019-10-13 21:41:53,406 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:41:53,407 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: ε 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: ε 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.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 21:41:53,414 INFO L168 Benchmark]: Toolchain (without parser) took 11472.30 ms. Allocated memory was 145.2 MB in the beginning and 472.9 MB in the end (delta: 327.7 MB). Free memory was 98.4 MB in the beginning and 231.2 MB in the end (delta: -132.8 MB). Peak memory consumption was 194.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:41:53,415 INFO L168 Benchmark]: CDTParser took 1.37 ms. Allocated memory is still 145.2 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 21:41:53,416 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1193.96 ms. Allocated memory was 145.2 MB in the beginning and 207.6 MB in the end (delta: 62.4 MB). Free memory was 97.9 MB in the beginning and 127.6 MB in the end (delta: -29.6 MB). Peak memory consumption was 39.1 MB. Max. memory is 7.1 GB. [2019-10-13 21:41:53,417 INFO L168 Benchmark]: Boogie Preprocessor took 172.02 ms. Allocated memory is still 207.6 MB. Free memory was 127.6 MB in the beginning and 116.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-10-13 21:41:53,418 INFO L168 Benchmark]: RCFGBuilder took 3243.51 ms. Allocated memory was 207.6 MB in the beginning and 302.0 MB in the end (delta: 94.4 MB). Free memory was 116.0 MB in the beginning and 223.6 MB in the end (delta: -107.6 MB). Peak memory consumption was 76.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:41:53,419 INFO L168 Benchmark]: TraceAbstraction took 6855.89 ms. Allocated memory was 302.0 MB in the beginning and 472.9 MB in the end (delta: 170.9 MB). Free memory was 220.7 MB in the beginning and 231.2 MB in the end (delta: -10.5 MB). Peak memory consumption was 160.4 MB. Max. memory is 7.1 GB. [2019-10-13 21:41:53,425 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.37 ms. Allocated memory is still 145.2 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1193.96 ms. Allocated memory was 145.2 MB in the beginning and 207.6 MB in the end (delta: 62.4 MB). Free memory was 97.9 MB in the beginning and 127.6 MB in the end (delta: -29.6 MB). Peak memory consumption was 39.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 172.02 ms. Allocated memory is still 207.6 MB. Free memory was 127.6 MB in the beginning and 116.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3243.51 ms. Allocated memory was 207.6 MB in the beginning and 302.0 MB in the end (delta: 94.4 MB). Free memory was 116.0 MB in the beginning and 223.6 MB in the end (delta: -107.6 MB). Peak memory consumption was 76.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6855.89 ms. Allocated memory was 302.0 MB in the beginning and 472.9 MB in the end (delta: 170.9 MB). Free memory was 220.7 MB in the beginning and 231.2 MB in the end (delta: -10.5 MB). Peak memory consumption was 160.4 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: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: 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...