/usr/bin/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_b2_o3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:11:18,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:11:18,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:11:18,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:11:18,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:11:18,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:11:18,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:11:18,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:11:18,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:11:18,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:11:18,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:11:18,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:11:18,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:11:18,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:11:18,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:11:18,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:11:18,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:11:18,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:11:18,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:11:18,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:11:18,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:11:18,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:11:18,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:11:18,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:11:18,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:11:18,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:11:18,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:11:18,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:11:18,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:11:18,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:11:18,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:11:18,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:11:18,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:11:18,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:11:18,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:11:18,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:11:18,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:11:18,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:11:18,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:11:18,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:11:18,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:11:18,847 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 03:11:18,897 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:11:18,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:11:18,900 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:11:18,900 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:11:18,900 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:11:18,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:11:18,901 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:11:18,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:11:18,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:11:18,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:11:18,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:11:18,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:11:18,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:11:18,903 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:11:18,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:11:18,904 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:11:18,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:11:18,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:11:18,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:11:18,904 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:11:18,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:11:18,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:11:18,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:11:18,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:11:18,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:11:18,906 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:11:18,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:11:18,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:11:18,906 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:11:18,906 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 03:11:19,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:11:19,454 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:11:19,459 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:11:19,464 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:11:19,464 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:11:19,465 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_b2_o3.c [2020-09-25 03:11:19,552 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d6b9e2b8/6b2ec961920c4d37ae0b55b18f760182/FLAG8728c4ba0 [2020-09-25 03:11:20,090 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:11:20,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_b2_o3.c [2020-09-25 03:11:20,100 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d6b9e2b8/6b2ec961920c4d37ae0b55b18f760182/FLAG8728c4ba0 [2020-09-25 03:11:20,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d6b9e2b8/6b2ec961920c4d37ae0b55b18f760182 [2020-09-25 03:11:20,436 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:11:20,441 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:11:20,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:11:20,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:11:20,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:11:20,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:11:20" (1/1) ... [2020-09-25 03:11:20,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70996f09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20, skipping insertion in model container [2020-09-25 03:11:20,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:11:20" (1/1) ... [2020-09-25 03:11:20,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:11:20,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:11:20,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:11:20,792 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:11:20,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:11:20,838 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:11:20,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20 WrapperNode [2020-09-25 03:11:20,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:11:20,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:11:20,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:11:20,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:11:20,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20" (1/1) ... [2020-09-25 03:11:20,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20" (1/1) ... [2020-09-25 03:11:20,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20" (1/1) ... [2020-09-25 03:11:20,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20" (1/1) ... [2020-09-25 03:11:20,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20" (1/1) ... [2020-09-25 03:11:20,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20" (1/1) ... [2020-09-25 03:11:20,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20" (1/1) ... [2020-09-25 03:11:20,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:11:20,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:11:20,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:11:20,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:11:20,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-25 03:11:21,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:11:21,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:11:21,082 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 03:11:21,083 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:11:21,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 03:11:21,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:11:21,084 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 03:11:21,084 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:11:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:11:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:11:21,303 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:11:21,303 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:11:21,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:11:21 BoogieIcfgContainer [2020-09-25 03:11:21,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:11:21,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:11:21,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:11:21,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:11:21,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:11:20" (1/3) ... [2020-09-25 03:11:21,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479bcdab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:11:21, skipping insertion in model container [2020-09-25 03:11:21,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:20" (2/3) ... [2020-09-25 03:11:21,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479bcdab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:11:21, skipping insertion in model container [2020-09-25 03:11:21,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:11:21" (3/3) ... [2020-09-25 03:11:21,325 INFO L109 eAbstractionObserver]: Analyzing ICFG id_b2_o3.c [2020-09-25 03:11:21,334 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:11:21,344 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:11:21,365 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:11:21,398 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:11:21,398 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:11:21,398 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:11:21,398 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:11:21,399 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:11:21,399 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:11:21,399 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:11:21,399 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:11:21,421 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-09-25 03:11:21,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 03:11:21,428 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:21,429 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:21,429 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:21,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:21,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1920796714, now seen corresponding path program 1 times [2020-09-25 03:11:21,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:21,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506776592] [2020-09-25 03:11:21,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:21,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:21,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:21,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:11:21,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:21,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 03:11:21,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:21,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:11:21,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 03:11:21,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:21,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:11:21,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:21,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:21,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:21,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:21,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:21,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:11:21,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:21,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:21,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:21,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:21,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:21,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:21,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:21,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:21,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:21,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:21,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 03:11:21,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:21,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:21,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:21,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:21,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:21,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:11:21,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506776592] [2020-09-25 03:11:21,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:11:21,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:11:21,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493091407] [2020-09-25 03:11:21,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:11:21,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:21,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:11:21,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:11:21,905 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2020-09-25 03:11:21,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:21,993 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2020-09-25 03:11:21,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 03:11:21,995 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 03:11:21,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:22,010 INFO L225 Difference]: With dead ends: 40 [2020-09-25 03:11:22,010 INFO L226 Difference]: Without dead ends: 25 [2020-09-25 03:11:22,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:11:22,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-09-25 03:11:22,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-09-25 03:11:22,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-09-25 03:11:22,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-09-25 03:11:22,071 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 16 [2020-09-25 03:11:22,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:22,071 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-09-25 03:11:22,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:11:22,072 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-09-25 03:11:22,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 03:11:22,074 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:22,075 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:22,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:11:22,076 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:22,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:22,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1151880470, now seen corresponding path program 1 times [2020-09-25 03:11:22,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:22,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [788420215] [2020-09-25 03:11:22,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:22,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:22,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:22,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:22,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 03:11:22,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:22,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 475 [2020-09-25 03:11:22,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:22,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:22,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 03:11:22,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 03:11:22,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:11:22,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:22,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:22,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:22,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:22,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:22,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:11:22,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:22,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:22,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:22,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:22,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:22,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:22,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:22,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:22,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:11:22,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:22,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-25 03:11:22,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:22,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:22,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:22,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:11:22,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:22,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:22,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:22,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:22,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:22,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:22,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 03:11:22,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:22,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:22,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:22,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:22,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:23,018 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 03:11:23,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [788420215] [2020-09-25 03:11:23,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:23,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 03:11:23,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860977990] [2020-09-25 03:11:23,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 03:11:23,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:23,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 03:11:23,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 03:11:23,032 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 8 states. [2020-09-25 03:11:23,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:23,178 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2020-09-25 03:11:23,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 03:11:23,178 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-09-25 03:11:23,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:23,180 INFO L225 Difference]: With dead ends: 46 [2020-09-25 03:11:23,180 INFO L226 Difference]: Without dead ends: 31 [2020-09-25 03:11:23,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:11:23,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-25 03:11:23,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-25 03:11:23,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 03:11:23,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2020-09-25 03:11:23,190 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 25 [2020-09-25 03:11:23,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:23,191 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2020-09-25 03:11:23,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 03:11:23,191 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2020-09-25 03:11:23,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 03:11:23,193 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:23,193 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:23,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:11:23,193 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:23,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:23,194 INFO L82 PathProgramCache]: Analyzing trace with hash 860037162, now seen corresponding path program 2 times [2020-09-25 03:11:23,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:23,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824210414] [2020-09-25 03:11:23,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:23,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:23,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:23,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:23,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 03:11:23,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:23,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-09-25 03:11:23,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:11:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 03:11:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:11:23,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:23,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:23,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:23,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:23,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:23,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:23,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:11:23,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:23,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:23,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:23,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:23,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:23,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:11:23,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:23,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-09-25 03:11:23,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:23,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:23,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:23,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:23,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:23,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:23,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:23,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:23,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:11:23,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:23,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 03:11:23,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:23,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:23,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:23,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:11:23,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:24,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:24,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:24,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:24,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:24,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:24,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 03:11:24,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:24,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:24,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:24,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:24,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:24,082 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 03:11:24,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824210414] [2020-09-25 03:11:24,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:24,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 03:11:24,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917191299] [2020-09-25 03:11:24,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:11:24,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:24,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:11:24,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:11:24,086 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 11 states. [2020-09-25 03:11:24,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:24,294 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2020-09-25 03:11:24,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:11:24,295 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 34 [2020-09-25 03:11:24,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:24,297 INFO L225 Difference]: With dead ends: 54 [2020-09-25 03:11:24,298 INFO L226 Difference]: Without dead ends: 39 [2020-09-25 03:11:24,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-09-25 03:11:24,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-09-25 03:11:24,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2020-09-25 03:11:24,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-25 03:11:24,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2020-09-25 03:11:24,309 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 34 [2020-09-25 03:11:24,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:24,310 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2020-09-25 03:11:24,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:11:24,310 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2020-09-25 03:11:24,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 03:11:24,312 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:24,312 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:24,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:11:24,313 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:24,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:24,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1953505858, now seen corresponding path program 3 times [2020-09-25 03:11:24,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:24,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664839724] [2020-09-25 03:11:24,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:24,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:24,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:25,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:25,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 03:11:25,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:25,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 823 [2020-09-25 03:11:25,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:25,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:11:25,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 03:11:25,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:11:25,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:25,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:25,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:25,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:25,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:25,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:25,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:25,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:25,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:25,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:25,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:25,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:25,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 03:11:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:25,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:25,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:25,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:11:25,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:25,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 03:11:25,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:25,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 03:11:25,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 03:11:25,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:11:25,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:25,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:25,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:25,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:25,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:11:25,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:25,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-25 03:11:25,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:25,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 03:11:25,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:25,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:25,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:25,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:25,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:25,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:25,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:11:25,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:25,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 03:11:25,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:25,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:25,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:25,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 03:11:25,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:25,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:11:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:25,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:25,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:25,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:25,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:25,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:11:25,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:25,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 03:11:25,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:25,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:25,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:25,857 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 03:11:25,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664839724] [2020-09-25 03:11:25,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:25,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 03:11:25,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639781898] [2020-09-25 03:11:25,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:11:25,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:25,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:11:25,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:11:25,860 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 11 states. [2020-09-25 03:11:26,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:26,046 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2020-09-25 03:11:26,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:11:26,047 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 43 [2020-09-25 03:11:26,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:26,048 INFO L225 Difference]: With dead ends: 45 [2020-09-25 03:11:26,048 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 03:11:26,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:11:26,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 03:11:26,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 03:11:26,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 03:11:26,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 03:11:26,050 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2020-09-25 03:11:26,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:26,051 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 03:11:26,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:11:26,051 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 03:11:26,051 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 03:11:26,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:11:26,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 03:11:26,080 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 03:11:26,080 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 03:11:26,080 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 03:11:26,081 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 03:11:26,081 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 03:11:26,081 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 03:11:26,081 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2020-09-25 03:11:26,081 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 17) the Hoare annotation is: true [2020-09-25 03:11:26,082 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 17) no Hoare annotation was computed. [2020-09-25 03:11:26,082 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 03:11:26,082 INFO L268 CegarLoopResult]: For program point L14(lines 14 16) no Hoare annotation was computed. [2020-09-25 03:11:26,082 INFO L271 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: true [2020-09-25 03:11:26,082 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 03:11:26,082 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-09-25 03:11:26,082 INFO L268 CegarLoopResult]: For program point L14-2(lines 11 17) no Hoare annotation was computed. [2020-09-25 03:11:26,083 INFO L268 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-09-25 03:11:26,083 INFO L268 CegarLoopResult]: For program point idFINAL(lines 4 9) no Hoare annotation was computed. [2020-09-25 03:11:26,083 INFO L268 CegarLoopResult]: For program point idEXIT(lines 4 9) no Hoare annotation was computed. [2020-09-25 03:11:26,083 INFO L271 CegarLoopResult]: At program point idENTRY(lines 4 9) the Hoare annotation is: true [2020-09-25 03:11:26,083 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 03:11:26,083 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 03:11:26,084 INFO L271 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: true [2020-09-25 03:11:26,084 INFO L268 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-09-25 03:11:26,084 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 03:11:26,084 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-09-25 03:11:26,084 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-25 03:11:26,084 INFO L268 CegarLoopResult]: For program point L6-2(line 6) no Hoare annotation was computed. [2020-09-25 03:11:26,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:11:26 BoogieIcfgContainer [2020-09-25 03:11:26,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:11:26,096 INFO L168 Benchmark]: Toolchain (without parser) took 5656.61 ms. Allocated memory was 146.8 MB in the beginning and 246.9 MB in the end (delta: 100.1 MB). Free memory was 103.7 MB in the beginning and 143.9 MB in the end (delta: -40.2 MB). Peak memory consumption was 59.9 MB. Max. memory is 7.1 GB. [2020-09-25 03:11:26,097 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-25 03:11:26,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.70 ms. Allocated memory is still 146.8 MB. Free memory was 103.0 MB in the beginning and 93.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-25 03:11:26,099 INFO L168 Benchmark]: Boogie Preprocessor took 49.80 ms. Allocated memory is still 146.8 MB. Free memory was 93.4 MB in the beginning and 92.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-09-25 03:11:26,100 INFO L168 Benchmark]: RCFGBuilder took 417.44 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 92.0 MB in the beginning and 170.6 MB in the end (delta: -78.5 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-25 03:11:26,101 INFO L168 Benchmark]: TraceAbstraction took 4781.96 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 169.9 MB in the beginning and 143.9 MB in the end (delta: 26.0 MB). Peak memory consumption was 70.0 MB. Max. memory is 7.1 GB. [2020-09-25 03:11:26,105 INFO L336 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 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 398.70 ms. Allocated memory is still 146.8 MB. Free memory was 103.0 MB in the beginning and 93.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.80 ms. Allocated memory is still 146.8 MB. Free memory was 93.4 MB in the beginning and 92.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 417.44 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 92.0 MB in the beginning and 170.6 MB in the end (delta: -78.5 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4781.96 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 169.9 MB in the beginning and 143.9 MB in the end (delta: 26.0 MB). Peak memory consumption was 70.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.6s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 100 SDtfs, 24 SDslu, 587 SDs, 0 SdLazy, 212 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 7 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 13446 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 32/60 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...