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/Problem12_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 02:44:26,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 02:44:26,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 02:44:26,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 02:44:26,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 02:44:26,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 02:44:26,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 02:44:26,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 02:44:26,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 02:44:26,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 02:44:26,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 02:44:26,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 02:44:26,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 02:44:26,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 02:44:26,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 02:44:26,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 02:44:26,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 02:44:26,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 02:44:26,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 02:44:26,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 02:44:26,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 02:44:26,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 02:44:26,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 02:44:26,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 02:44:26,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 02:44:26,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 02:44:26,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 02:44:26,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 02:44:26,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 02:44:26,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 02:44:26,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 02:44:26,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 02:44:26,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 02:44:26,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 02:44:26,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 02:44:26,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 02:44:26,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 02:44:26,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 02:44:26,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 02:44:26,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 02:44:26,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 02:44:26,912 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 [2019-10-07 02:44:26,945 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 02:44:26,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 02:44:26,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 02:44:26,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 02:44:26,948 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 02:44:26,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 02:44:26,948 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 02:44:26,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 02:44:26,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 02:44:26,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 02:44:26,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 02:44:26,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 02:44:26,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 02:44:26,954 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 02:44:26,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 02:44:26,954 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 02:44:26,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 02:44:26,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 02:44:26,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 02:44:26,955 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 02:44:26,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 02:44:26,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 02:44:26,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 02:44:26,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 02:44:26,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 02:44:26,958 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 02:44:26,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 02:44:26,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 02:44:26,959 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 [2019-10-07 02:44:27,234 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 02:44:27,248 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 02:44:27,252 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 02:44:27,254 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 02:44:27,254 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 02:44:27,255 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label45.c [2019-10-07 02:44:27,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebf8c5fd2/9b8b1cab9ca047e89bc1dcf3450751dc/FLAG569b4fe66 [2019-10-07 02:44:28,117 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 02:44:28,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label45.c [2019-10-07 02:44:28,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebf8c5fd2/9b8b1cab9ca047e89bc1dcf3450751dc/FLAG569b4fe66 [2019-10-07 02:44:28,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebf8c5fd2/9b8b1cab9ca047e89bc1dcf3450751dc [2019-10-07 02:44:28,194 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 02:44:28,195 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 02:44:28,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 02:44:28,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 02:44:28,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 02:44:28,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:44:28" (1/1) ... [2019-10-07 02:44:28,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b2e1afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:28, skipping insertion in model container [2019-10-07 02:44:28,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:44:28" (1/1) ... [2019-10-07 02:44:28,217 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 02:44:28,377 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 02:44:29,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 02:44:29,924 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 02:44:30,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 02:44:30,604 INFO L192 MainTranslator]: Completed translation [2019-10-07 02:44:30,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:30 WrapperNode [2019-10-07 02:44:30,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 02:44:30,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 02:44:30,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 02:44:30,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 02:44:30,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:30" (1/1) ... [2019-10-07 02:44:30,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:30" (1/1) ... [2019-10-07 02:44:30,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:30" (1/1) ... [2019-10-07 02:44:30,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:30" (1/1) ... [2019-10-07 02:44:30,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:30" (1/1) ... [2019-10-07 02:44:30,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:30" (1/1) ... [2019-10-07 02:44:30,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:30" (1/1) ... [2019-10-07 02:44:30,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 02:44:30,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 02:44:30,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 02:44:30,870 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 02:44:30,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:30" (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 [2019-10-07 02:44:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 02:44:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 02:44:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-07 02:44:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-10-07 02:44:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-10-07 02:44:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-10-07 02:44:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 02:44:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-07 02:44:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-10-07 02:44:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-10-07 02:44:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-10-07 02:44:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 02:44:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 02:44:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 02:44:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 02:44:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 02:44:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 02:44:37,820 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 02:44:37,821 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 02:44:37,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:44:37 BoogieIcfgContainer [2019-10-07 02:44:37,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 02:44:37,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 02:44:37,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 02:44:37,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 02:44:37,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:44:28" (1/3) ... [2019-10-07 02:44:37,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fab9c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:44:37, skipping insertion in model container [2019-10-07 02:44:37,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:44:30" (2/3) ... [2019-10-07 02:44:37,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fab9c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:44:37, skipping insertion in model container [2019-10-07 02:44:37,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:44:37" (3/3) ... [2019-10-07 02:44:37,832 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem12_label45.c [2019-10-07 02:44:37,843 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 02:44:37,852 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 02:44:37,864 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 02:44:37,900 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 02:44:37,901 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 02:44:37,901 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 02:44:37,901 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 02:44:37,901 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 02:44:37,901 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 02:44:37,901 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 02:44:37,902 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 02:44:37,936 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states. [2019-10-07 02:44:37,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-07 02:44:37,942 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 02:44:37,943 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 02:44:37,945 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 02:44:37,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 02:44:37,951 INFO L82 PathProgramCache]: Analyzing trace with hash -874907058, now seen corresponding path program 1 times [2019-10-07 02:44:37,959 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 02:44:37,959 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 02:44:37,959 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 02:44:37,960 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 02:44:37,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 02:44:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 02:44:38,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 02:44:38,249 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 02:44:38,250 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 02:44:38,250 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 02:44:38,254 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 02:44:38,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 02:44:38,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 02:44:38,273 INFO L87 Difference]: Start difference. First operand 694 states. Second operand 3 states. [2019-10-07 02:44:42,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 02:44:42,919 INFO L93 Difference]: Finished difference Result 2068 states and 4065 transitions. [2019-10-07 02:44:42,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 02:44:42,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-10-07 02:44:42,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 02:44:42,949 INFO L225 Difference]: With dead ends: 2068 [2019-10-07 02:44:42,950 INFO L226 Difference]: Without dead ends: 1371 [2019-10-07 02:44:42,961 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 02:44:42,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2019-10-07 02:44:43,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1365. [2019-10-07 02:44:43,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1365 states. [2019-10-07 02:44:43,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 2477 transitions. [2019-10-07 02:44:43,105 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 2477 transitions. Word has length 11 [2019-10-07 02:44:43,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 02:44:43,105 INFO L462 AbstractCegarLoop]: Abstraction has 1365 states and 2477 transitions. [2019-10-07 02:44:43,106 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 02:44:43,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 2477 transitions. [2019-10-07 02:44:43,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-07 02:44:43,109 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 02:44:43,109 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 02:44:43,110 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 02:44:43,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 02:44:43,111 INFO L82 PathProgramCache]: Analyzing trace with hash -412581160, now seen corresponding path program 1 times [2019-10-07 02:44:43,111 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 02:44:43,111 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 02:44:43,112 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 02:44:43,112 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 02:44:43,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 02:44:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 02:44:43,250 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 02:44:43,252 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 02:44:43,253 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 02:44:43,253 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 02:44:43,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 02:44:43,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 02:44:43,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 02:44:43,256 INFO L87 Difference]: Start difference. First operand 1365 states and 2477 transitions. Second operand 4 states. [2019-10-07 02:44:50,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 02:44:50,418 INFO L93 Difference]: Finished difference Result 5437 states and 9985 transitions. [2019-10-07 02:44:50,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 02:44:50,419 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2019-10-07 02:44:50,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 02:44:50,444 INFO L225 Difference]: With dead ends: 5437 [2019-10-07 02:44:50,445 INFO L226 Difference]: Without dead ends: 4077 [2019-10-07 02:44:50,450 INFO L606 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 [2019-10-07 02:44:50,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4077 states. [2019-10-07 02:44:50,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4077 to 4054. [2019-10-07 02:44:50,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4054 states. [2019-10-07 02:44:50,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4054 states to 4054 states and 7014 transitions. [2019-10-07 02:44:50,566 INFO L78 Accepts]: Start accepts. Automaton has 4054 states and 7014 transitions. Word has length 27 [2019-10-07 02:44:50,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 02:44:50,567 INFO L462 AbstractCegarLoop]: Abstraction has 4054 states and 7014 transitions. [2019-10-07 02:44:50,567 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 02:44:50,567 INFO L276 IsEmpty]: Start isEmpty. Operand 4054 states and 7014 transitions. [2019-10-07 02:44:50,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-07 02:44:50,572 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 02:44:50,572 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 02:44:50,572 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 02:44:50,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 02:44:50,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1931742036, now seen corresponding path program 1 times [2019-10-07 02:44:50,573 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 02:44:50,573 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 02:44:50,574 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 02:44:50,574 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 02:44:50,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 02:44:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 02:44:50,796 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 02:44:50,796 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 02:44:50,796 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 02:44:50,797 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 02:44:50,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 02:44:50,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 02:44:50,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-07 02:44:50,798 INFO L87 Difference]: Start difference. First operand 4054 states and 7014 transitions. Second operand 6 states. [2019-10-07 02:44:56,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 02:44:56,994 INFO L93 Difference]: Finished difference Result 12300 states and 21912 transitions. [2019-10-07 02:44:56,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 02:44:56,995 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2019-10-07 02:44:56,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 02:44:57,040 INFO L225 Difference]: With dead ends: 12300 [2019-10-07 02:44:57,040 INFO L226 Difference]: Without dead ends: 8251 [2019-10-07 02:44:57,053 INFO L606 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 [2019-10-07 02:44:57,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8251 states. [2019-10-07 02:44:57,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8251 to 8182. [2019-10-07 02:44:57,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8182 states. [2019-10-07 02:44:57,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8182 states to 8182 states and 13906 transitions. [2019-10-07 02:44:57,299 INFO L78 Accepts]: Start accepts. Automaton has 8182 states and 13906 transitions. Word has length 65 [2019-10-07 02:44:57,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 02:44:57,300 INFO L462 AbstractCegarLoop]: Abstraction has 8182 states and 13906 transitions. [2019-10-07 02:44:57,300 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 02:44:57,300 INFO L276 IsEmpty]: Start isEmpty. Operand 8182 states and 13906 transitions. [2019-10-07 02:44:57,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-07 02:44:57,307 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 02:44:57,307 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 02:44:57,307 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 02:44:57,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 02:44:57,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1420576065, now seen corresponding path program 1 times [2019-10-07 02:44:57,308 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 02:44:57,308 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 02:44:57,308 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 02:44:57,309 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 02:44:57,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 02:44:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 02:44:57,501 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 02:44:57,502 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 02:44:57,503 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 02:44:57,503 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 02:44:57,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 02:44:57,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 02:44:57,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 02:44:57,504 INFO L87 Difference]: Start difference. First operand 8182 states and 13906 transitions. Second operand 5 states. [2019-10-07 02:45:06,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 02:45:06,652 INFO L93 Difference]: Finished difference Result 24191 states and 42592 transitions. [2019-10-07 02:45:06,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 02:45:06,653 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2019-10-07 02:45:06,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 02:45:06,744 INFO L225 Difference]: With dead ends: 24191 [2019-10-07 02:45:06,745 INFO L226 Difference]: Without dead ends: 16014 [2019-10-07 02:45:06,767 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 02:45:06,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16014 states. [2019-10-07 02:45:07,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16014 to 14427. [2019-10-07 02:45:07,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14427 states. [2019-10-07 02:45:07,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14427 states to 14427 states and 22823 transitions. [2019-10-07 02:45:07,197 INFO L78 Accepts]: Start accepts. Automaton has 14427 states and 22823 transitions. Word has length 92 [2019-10-07 02:45:07,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 02:45:07,198 INFO L462 AbstractCegarLoop]: Abstraction has 14427 states and 22823 transitions. [2019-10-07 02:45:07,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 02:45:07,198 INFO L276 IsEmpty]: Start isEmpty. Operand 14427 states and 22823 transitions. [2019-10-07 02:45:07,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-10-07 02:45:07,202 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 02:45:07,202 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 02:45:07,202 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 02:45:07,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 02:45:07,203 INFO L82 PathProgramCache]: Analyzing trace with hash -639502545, now seen corresponding path program 1 times [2019-10-07 02:45:07,203 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 02:45:07,203 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 02:45:07,203 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 02:45:07,203 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 02:45:07,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 02:45:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 02:45:07,293 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 02:45:07,293 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 02:45:07,294 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 02:45:07,294 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 02:45:07,295 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 02:45:07,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 02:45:07,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 02:45:07,295 INFO L87 Difference]: Start difference. First operand 14427 states and 22823 transitions. Second operand 4 states. [2019-10-07 02:45:14,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 02:45:14,450 INFO L93 Difference]: Finished difference Result 36347 states and 58761 transitions. [2019-10-07 02:45:14,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 02:45:14,451 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 100 [2019-10-07 02:45:14,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 02:45:14,528 INFO L225 Difference]: With dead ends: 36347 [2019-10-07 02:45:14,528 INFO L226 Difference]: Without dead ends: 21925 [2019-10-07 02:45:14,563 INFO L606 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 [2019-10-07 02:45:14,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21925 states. [2019-10-07 02:45:14,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21925 to 21528. [2019-10-07 02:45:14,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21528 states. [2019-10-07 02:45:15,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21528 states to 21528 states and 30685 transitions. [2019-10-07 02:45:15,009 INFO L78 Accepts]: Start accepts. Automaton has 21528 states and 30685 transitions. Word has length 100 [2019-10-07 02:45:15,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 02:45:15,010 INFO L462 AbstractCegarLoop]: Abstraction has 21528 states and 30685 transitions. [2019-10-07 02:45:15,010 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 02:45:15,010 INFO L276 IsEmpty]: Start isEmpty. Operand 21528 states and 30685 transitions. [2019-10-07 02:45:15,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-07 02:45:15,024 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 02:45:15,024 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 02:45:15,025 INFO L410 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 02:45:15,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 02:45:15,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1513348762, now seen corresponding path program 1 times [2019-10-07 02:45:15,025 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 02:45:15,025 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 02:45:15,026 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 02:45:15,026 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 02:45:15,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 02:45:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 02:45:15,206 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 10 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 02:45:15,206 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 02:45:15,206 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 02:45:15,206 INFO L95 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 [2019-10-07 02:45:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 02:45:15,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-07 02:45:15,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 02:45:15,454 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 02:45:15,454 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 02:45:16,518 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 10 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 02:45:16,519 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 02:45:16,519 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 9 [2019-10-07 02:45:16,520 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 02:45:16,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 02:45:16,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-10-07 02:45:16,522 INFO L87 Difference]: Start difference. First operand 21528 states and 30685 transitions. Second operand 5 states. [2019-10-07 02:45:23,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 02:45:23,212 INFO L93 Difference]: Finished difference Result 52329 states and 77424 transitions. [2019-10-07 02:45:23,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 02:45:23,212 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 181 [2019-10-07 02:45:23,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 02:45:23,349 INFO L225 Difference]: With dead ends: 52329 [2019-10-07 02:45:23,350 INFO L226 Difference]: Without dead ends: 30806 [2019-10-07 02:45:23,417 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 357 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2019-10-07 02:45:23,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30806 states. [2019-10-07 02:45:24,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30806 to 29679. [2019-10-07 02:45:24,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29679 states. [2019-10-07 02:45:24,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29679 states to 29679 states and 43100 transitions. [2019-10-07 02:45:24,127 INFO L78 Accepts]: Start accepts. Automaton has 29679 states and 43100 transitions. Word has length 181 [2019-10-07 02:45:24,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 02:45:24,128 INFO L462 AbstractCegarLoop]: Abstraction has 29679 states and 43100 transitions. [2019-10-07 02:45:24,128 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 02:45:24,129 INFO L276 IsEmpty]: Start isEmpty. Operand 29679 states and 43100 transitions. [2019-10-07 02:45:24,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-07 02:45:24,149 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 02:45:24,150 INFO L385 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 02:45:24,354 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 02:45:24,354 INFO L410 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 02:45:24,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 02:45:24,355 INFO L82 PathProgramCache]: Analyzing trace with hash -844382864, now seen corresponding path program 1 times [2019-10-07 02:45:24,355 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 02:45:24,355 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 02:45:24,355 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 02:45:24,355 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 02:45:24,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 02:45:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 02:45:24,639 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 22 proven. 59 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-07 02:45:24,639 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 02:45:24,639 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 02:45:24,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 02:45:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 02:45:24,774 INFO L256 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 02:45:24,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 02:45:24,989 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 90 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 02:45:24,989 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 02:45:25,069 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 33 proven. 51 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 02:45:25,070 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 02:45:25,106 INFO L162 IcfgInterpreter]: Started Sifa with 126 locations of interest [2019-10-07 02:45:25,106 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 02:45:25,113 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 02:45:25,123 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 02:45:25,124 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 02:45:25,313 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 59 for LOIs [2019-10-07 02:45:25,526 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 45 [2019-10-07 02:45:25,738 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 45 [2019-10-07 02:45:25,925 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2019-10-07 02:45:25,955 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2019-10-07 02:45:26,227 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 02:45:26,231 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:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) 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:99) 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:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 02:45:26,240 INFO L168 Benchmark]: Toolchain (without parser) took 58043.95 ms. Allocated memory was 138.4 MB in the beginning and 1.1 GB in the end (delta: 942.7 MB). Free memory was 88.7 MB in the beginning and 539.8 MB in the end (delta: -451.0 MB). Peak memory consumption was 491.6 MB. Max. memory is 7.1 GB. [2019-10-07 02:45:26,241 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 02:45:26,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2406.88 ms. Allocated memory was 138.4 MB in the beginning and 257.9 MB in the end (delta: 119.5 MB). Free memory was 88.5 MB in the beginning and 176.8 MB in the end (delta: -88.2 MB). Peak memory consumption was 117.8 MB. Max. memory is 7.1 GB. [2019-10-07 02:45:26,245 INFO L168 Benchmark]: Boogie Preprocessor took 263.35 ms. Allocated memory is still 257.9 MB. Free memory was 176.8 MB in the beginning and 150.1 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-10-07 02:45:26,247 INFO L168 Benchmark]: RCFGBuilder took 6954.18 ms. Allocated memory was 257.9 MB in the beginning and 396.9 MB in the end (delta: 138.9 MB). Free memory was 150.1 MB in the beginning and 245.7 MB in the end (delta: -95.5 MB). Peak memory consumption was 218.6 MB. Max. memory is 7.1 GB. [2019-10-07 02:45:26,250 INFO L168 Benchmark]: TraceAbstraction took 48412.47 ms. Allocated memory was 396.9 MB in the beginning and 1.1 GB in the end (delta: 684.2 MB). Free memory was 245.7 MB in the beginning and 539.8 MB in the end (delta: -294.1 MB). Peak memory consumption was 390.1 MB. Max. memory is 7.1 GB. [2019-10-07 02:45:26,258 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 138.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2406.88 ms. Allocated memory was 138.4 MB in the beginning and 257.9 MB in the end (delta: 119.5 MB). Free memory was 88.5 MB in the beginning and 176.8 MB in the end (delta: -88.2 MB). Peak memory consumption was 117.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 263.35 ms. Allocated memory is still 257.9 MB. Free memory was 176.8 MB in the beginning and 150.1 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6954.18 ms. Allocated memory was 257.9 MB in the beginning and 396.9 MB in the end (delta: 138.9 MB). Free memory was 150.1 MB in the beginning and 245.7 MB in the end (delta: -95.5 MB). Peak memory consumption was 218.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 48412.47 ms. Allocated memory was 396.9 MB in the beginning and 1.1 GB in the end (delta: 684.2 MB). Free memory was 245.7 MB in the beginning and 539.8 MB in the end (delta: -294.1 MB). Peak memory consumption was 390.1 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:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...