/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 SequenceOfStatements --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 23:22:47,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 23:22:47,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 23:22:47,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 23:22:47,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 23:22:47,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 23:22:47,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 23:22:47,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 23:22:47,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 23:22:47,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 23:22:47,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 23:22:47,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 23:22:47,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 23:22:47,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 23:22:47,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 23:22:47,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 23:22:47,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 23:22:47,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 23:22:47,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 23:22:47,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 23:22:47,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 23:22:47,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 23:22:47,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 23:22:47,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 23:22:47,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 23:22:47,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 23:22:47,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 23:22:47,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 23:22:47,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 23:22:47,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 23:22:47,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 23:22:47,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 23:22:47,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 23:22:47,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 23:22:47,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 23:22:47,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 23:22:47,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 23:22:47,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 23:22:47,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 23:22:47,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 23:22:47,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 23:22:47,888 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 [2020-10-13 23:22:47,912 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 23:22:47,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 23:22:47,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 23:22:47,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 23:22:47,914 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 23:22:47,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 23:22:47,914 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 23:22:47,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 23:22:47,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 23:22:47,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 23:22:47,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 23:22:47,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 23:22:47,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 23:22:47,915 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 23:22:47,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 23:22:47,916 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 23:22:47,916 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 23:22:47,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 23:22:47,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 23:22:47,917 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 23:22:47,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 23:22:47,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 23:22:47,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 23:22:47,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 23:22:47,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 23:22:47,918 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 23:22:47,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 23:22:47,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 23:22:47,918 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 23:22:47,918 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 -> SequenceOfStatements 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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-13 23:22:48,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 23:22:48,294 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 23:22:48,297 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 23:22:48,299 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 23:22:48,300 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 23:22:48,300 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-10-13 23:22:48,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b7bcb107c/30af068d66494fa3828fd34f7b9859f9/FLAG2abea4961 [2020-10-13 23:22:48,846 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 23:22:48,849 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i [2020-10-13 23:22:48,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b7bcb107c/30af068d66494fa3828fd34f7b9859f9/FLAG2abea4961 [2020-10-13 23:22:49,374 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b7bcb107c/30af068d66494fa3828fd34f7b9859f9 [2020-10-13 23:22:49,383 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 23:22:49,385 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 23:22:49,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 23:22:49,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 23:22:49,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 23:22:49,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:22:49" (1/1) ... [2020-10-13 23:22:49,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:22:49, skipping insertion in model container [2020-10-13 23:22:49,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:22:49" (1/1) ... [2020-10-13 23:22:49,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 23:22:49,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 23:22:49,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:22:49,617 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 23:22:49,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:22:49,743 INFO L208 MainTranslator]: Completed translation [2020-10-13 23:22:49,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:22:49 WrapperNode [2020-10-13 23:22:49,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 23:22:49,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 23:22:49,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 23:22:49,744 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 23:22:49,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:22:49" (1/1) ... [2020-10-13 23:22:49,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:22:49" (1/1) ... [2020-10-13 23:22:49,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:22:49" (1/1) ... [2020-10-13 23:22:49,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:22:49" (1/1) ... [2020-10-13 23:22:49,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:22:49" (1/1) ... [2020-10-13 23:22:49,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:22:49" (1/1) ... [2020-10-13 23:22:49,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:22:49" (1/1) ... [2020-10-13 23:22:49,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 23:22:49,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 23:22:49,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 23:22:49,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 23:22:49,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:22:49" (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 [2020-10-13 23:22:49,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 23:22:49,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 23:22:49,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-13 23:22:49,866 INFO L138 BoogieDeclarations]: Found implementation of procedure insert [2020-10-13 23:22:49,866 INFO L138 BoogieDeclarations]: Found implementation of procedure elem_exists [2020-10-13 23:22:49,866 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 23:22:49,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 23:22:49,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-13 23:22:49,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 23:22:49,867 INFO L130 BoogieDeclarations]: Found specification of procedure insert [2020-10-13 23:22:49,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 23:22:49,867 INFO L130 BoogieDeclarations]: Found specification of procedure elem_exists [2020-10-13 23:22:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 23:22:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 23:22:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 23:22:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 23:22:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 23:22:49,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 23:22:50,291 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 23:22:50,292 INFO L295 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-13 23:22:50,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:22:50 BoogieIcfgContainer [2020-10-13 23:22:50,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 23:22:50,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 23:22:50,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 23:22:50,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 23:22:50,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:22:49" (1/3) ... [2020-10-13 23:22:50,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6adccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:22:50, skipping insertion in model container [2020-10-13 23:22:50,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:22:49" (2/3) ... [2020-10-13 23:22:50,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6adccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:22:50, skipping insertion in model container [2020-10-13 23:22:50,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:22:50" (3/3) ... [2020-10-13 23:22:50,306 INFO L109 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i [2020-10-13 23:22:50,315 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 23:22:50,322 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 23:22:50,337 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 23:22:50,361 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 23:22:50,361 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 23:22:50,361 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 23:22:50,361 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 23:22:50,362 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 23:22:50,362 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 23:22:50,362 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 23:22:50,362 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 23:22:50,384 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-10-13 23:22:50,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-13 23:22:50,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:22:50,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:22:50,392 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:22:50,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:22:50,399 INFO L82 PathProgramCache]: Analyzing trace with hash 528217166, now seen corresponding path program 1 times [2020-10-13 23:22:50,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:22:50,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331260604] [2020-10-13 23:22:50,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:22:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:22:50,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:50,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:50,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:22:50,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-13 23:22:50,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:22:50,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-13 23:22:50,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:22:50,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:22:50,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:22:50,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 23:22:50,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:22:50,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-13 23:22:50,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:22:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:22:50,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:50,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:22:50,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:22:50,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:22:50,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:22:50,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:22:50,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:22:50,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:22:50,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:22:50,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:22:50,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:22:50,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:22:50,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331260604] [2020-10-13 23:22:50,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:22:50,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 23:22:50,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434736118] [2020-10-13 23:22:50,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 23:22:50,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:22:50,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 23:22:50,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 23:22:50,942 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 4 states. [2020-10-13 23:22:51,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:22:51,249 INFO L93 Difference]: Finished difference Result 150 states and 228 transitions. [2020-10-13 23:22:51,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 23:22:51,251 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-13 23:22:51,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:22:51,264 INFO L225 Difference]: With dead ends: 150 [2020-10-13 23:22:51,264 INFO L226 Difference]: Without dead ends: 89 [2020-10-13 23:22:51,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 23:22:51,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-13 23:22:51,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 57. [2020-10-13 23:22:51,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-13 23:22:51,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 70 transitions. [2020-10-13 23:22:51,326 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 70 transitions. Word has length 14 [2020-10-13 23:22:51,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:22:51,326 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 70 transitions. [2020-10-13 23:22:51,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 23:22:51,327 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 70 transitions. [2020-10-13 23:22:51,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-13 23:22:51,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:22:51,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:22:51,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 23:22:51,329 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:22:51,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:22:51,329 INFO L82 PathProgramCache]: Analyzing trace with hash 396779504, now seen corresponding path program 1 times [2020-10-13 23:22:51,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:22:51,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919647129] [2020-10-13 23:22:51,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:22:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:22:51,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:51,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:51,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:22:51,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 23:22:51,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:22:51,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-13 23:22:51,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:22:51,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:22:51,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 23:22:51,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 23:22:51,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:22:51,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:22:51,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:22:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:22:51,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:51,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:22:51,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:22:51,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:22:51,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:22:51,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:22:51,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:22:51,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:22:51,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:22:51,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:22:51,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:22:51,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 23:22:51,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919647129] [2020-10-13 23:22:51,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:22:51,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 23:22:51,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913417600] [2020-10-13 23:22:51,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 23:22:51,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:22:51,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 23:22:51,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 23:22:51,649 INFO L87 Difference]: Start difference. First operand 57 states and 70 transitions. Second operand 5 states. [2020-10-13 23:22:51,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:22:51,842 INFO L93 Difference]: Finished difference Result 111 states and 139 transitions. [2020-10-13 23:22:51,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 23:22:51,842 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-13 23:22:51,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:22:51,844 INFO L225 Difference]: With dead ends: 111 [2020-10-13 23:22:51,844 INFO L226 Difference]: Without dead ends: 62 [2020-10-13 23:22:51,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 23:22:51,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-13 23:22:51,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2020-10-13 23:22:51,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-13 23:22:51,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2020-10-13 23:22:51,858 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 16 [2020-10-13 23:22:51,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:22:51,858 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2020-10-13 23:22:51,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 23:22:51,859 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2020-10-13 23:22:51,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-13 23:22:51,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:22:51,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:22:51,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 23:22:51,861 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:22:51,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:22:51,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1038969378, now seen corresponding path program 1 times [2020-10-13 23:22:51,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:22:51,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385668469] [2020-10-13 23:22:51,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:22:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:22:51,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:51,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:51,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:51,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:52,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:52,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:56,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:22:56,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-13 23:22:56,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 23:22:56,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 23:22:56,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:22:56,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:22:56,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:22:56,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 23:22:56,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:22:56,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:22:56,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:22:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:22:56,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:56,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:22:56,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:22:56,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:22:56,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:22:56,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:22:56,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:22:56,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:22:56,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:22:56,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:22:56,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:22:56,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:22:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:22:56,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:56,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:22:56,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 23:22:56,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:22:56,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 23:22:56,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:22:56,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:22:56,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:22:56,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 23:22:56,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:22:56,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:22:56,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 23:22:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:22:56,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:56,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:22:56,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:22:56,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:22:56,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:22:56,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:22:56,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:22:56,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:22:56,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:22:56,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:22:56,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:22:56,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 23:22:56,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [385668469] [2020-10-13 23:22:56,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:22:56,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 23:22:56,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809231788] [2020-10-13 23:22:56,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 23:22:56,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:22:56,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 23:22:56,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 23:22:56,983 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand 5 states. [2020-10-13 23:22:57,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:22:57,222 INFO L93 Difference]: Finished difference Result 123 states and 152 transitions. [2020-10-13 23:22:57,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 23:22:57,225 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-10-13 23:22:57,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:22:57,229 INFO L225 Difference]: With dead ends: 123 [2020-10-13 23:22:57,229 INFO L226 Difference]: Without dead ends: 78 [2020-10-13 23:22:57,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 23:22:57,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-13 23:22:57,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 60. [2020-10-13 23:22:57,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-13 23:22:57,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions. [2020-10-13 23:22:57,247 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 35 [2020-10-13 23:22:57,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:22:57,248 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 72 transitions. [2020-10-13 23:22:57,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 23:22:57,252 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2020-10-13 23:22:57,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-13 23:22:57,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:22:57,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:22:57,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 23:22:57,255 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:22:57,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:22:57,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1973807940, now seen corresponding path program 1 times [2020-10-13 23:22:57,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:22:57,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967793948] [2020-10-13 23:22:57,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:22:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:22:57,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:57,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:57,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:57,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:57,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:22:57,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:23:02,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:23:02,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 23:23:02,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 23:23:02,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-13 23:23:02,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:23:02,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:23:02,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 23:23:02,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 23:23:02,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 23:23:02,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:23:02,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:23:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:23:02,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:23:02,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:23:02,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:23:02,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:23:02,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:23:02,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:23:02,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:23:02,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:23:02,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:23:02,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:23:02,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:23:02,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-13 23:23:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:23:02,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:23:02,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:23:02,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 23:23:02,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:23:02,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 23:23:02,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:23:02,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:23:02,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 23:23:02,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:23:02,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:23:02,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:23:02,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 23:23:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:23:02,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:23:02,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:23:02,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:23:02,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:23:02,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:23:02,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:23:02,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:23:02,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:23:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:23:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:23:02,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:23:02,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-13 23:23:02,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967793948] [2020-10-13 23:23:02,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:23:02,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 23:23:02,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370819557] [2020-10-13 23:23:02,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 23:23:02,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:23:02,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 23:23:02,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 23:23:02,360 INFO L87 Difference]: Start difference. First operand 60 states and 72 transitions. Second operand 6 states. [2020-10-13 23:23:02,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:23:02,528 INFO L93 Difference]: Finished difference Result 103 states and 126 transitions. [2020-10-13 23:23:02,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 23:23:02,529 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-10-13 23:23:02,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:23:02,530 INFO L225 Difference]: With dead ends: 103 [2020-10-13 23:23:02,530 INFO L226 Difference]: Without dead ends: 66 [2020-10-13 23:23:02,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-13 23:23:02,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-13 23:23:02,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-13 23:23:02,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-13 23:23:02,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 79 transitions. [2020-10-13 23:23:02,541 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 79 transitions. Word has length 37 [2020-10-13 23:23:02,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:23:02,542 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 79 transitions. [2020-10-13 23:23:02,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 23:23:02,542 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 79 transitions. [2020-10-13 23:23:02,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-13 23:23:02,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:23:02,543 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:23:02,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 23:23:02,544 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:23:02,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:23:02,544 INFO L82 PathProgramCache]: Analyzing trace with hash -556218637, now seen corresponding path program 1 times [2020-10-13 23:23:02,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:23:02,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1693794017] [2020-10-13 23:23:02,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:23:02,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:23:02,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:23:02,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:23:02,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:23:02,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:23:02,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:23:02,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:23:06,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:23:06,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 23:23:06,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 23:23:06,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3989 [2020-10-13 23:23:06,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:23:06,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:23:06,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:23:06,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-13 23:23:06,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 23:23:06,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:23:06,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:23:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:23:06,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:23:06,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:23:06,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:23:06,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:23:06,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:23:06,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:23:06,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:23:06,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:23:06,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:23:06,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:23:06,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:23:06,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-13 23:23:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:23:06,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:23:06,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:23:06,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 23:23:06,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:23:06,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 23:23:06,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:23:06,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:23:06,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:23:06,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 23:23:06,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 23:23:06,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:23:06,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-13 23:23:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:23:06,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:23:06,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:23:06,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:23:06,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:23:06,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:23:06,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-13 23:23:06,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-13 23:23:06,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:23:06,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:23:06,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:23:06,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:23:06,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-13 23:23:06,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1693794017] [2020-10-13 23:23:06,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:23:06,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 23:23:06,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862473920] [2020-10-13 23:23:06,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 23:23:06,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:23:06,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 23:23:06,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-13 23:23:06,665 INFO L87 Difference]: Start difference. First operand 66 states and 79 transitions. Second operand 7 states. [2020-10-13 23:23:06,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:23:06,834 INFO L93 Difference]: Finished difference Result 86 states and 102 transitions. [2020-10-13 23:23:06,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 23:23:06,835 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2020-10-13 23:23:06,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:23:06,836 INFO L225 Difference]: With dead ends: 86 [2020-10-13 23:23:06,836 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 23:23:06,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-13 23:23:06,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 23:23:06,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 23:23:06,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 23:23:06,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 23:23:06,838 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2020-10-13 23:23:06,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:23:06,838 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 23:23:06,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 23:23:06,839 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 23:23:06,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 23:23:06,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 23:23:06,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 23:23:07,001 INFO L271 CegarLoopResult]: At program point elem_existsENTRY(lines 9 15) the Hoare annotation is: true [2020-10-13 23:23:07,002 INFO L268 CegarLoopResult]: For program point elem_existsEXIT(lines 9 15) no Hoare annotation was computed. [2020-10-13 23:23:07,002 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-10-13 23:23:07,002 INFO L268 CegarLoopResult]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2020-10-13 23:23:07,002 INFO L268 CegarLoopResult]: For program point elem_existsFINAL(lines 9 15) no Hoare annotation was computed. [2020-10-13 23:23:07,002 INFO L264 CegarLoopResult]: At program point L11-3(lines 11 13) the Hoare annotation is: (<= elem_exists_~size (+ |elem_exists_#in~size| elem_exists_~i~0)) [2020-10-13 23:23:07,002 INFO L268 CegarLoopResult]: For program point L11-4(lines 11 13) no Hoare annotation was computed. [2020-10-13 23:23:07,003 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 23:23:07,003 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-13 23:23:07,003 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 23:23:07,003 INFO L271 CegarLoopResult]: At program point insertENTRY(lines 5 8) the Hoare annotation is: true [2020-10-13 23:23:07,003 INFO L268 CegarLoopResult]: For program point insertFINAL(lines 5 8) no Hoare annotation was computed. [2020-10-13 23:23:07,003 INFO L268 CegarLoopResult]: For program point insertEXIT(lines 5 8) no Hoare annotation was computed. [2020-10-13 23:23:07,004 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 23:23:07,004 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-13 23:23:07,004 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 23:23:07,004 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 23:23:07,004 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 56) no Hoare annotation was computed. [2020-10-13 23:23:07,004 INFO L264 CegarLoopResult]: At program point L52(line 52) the Hoare annotation is: false [2020-10-13 23:23:07,005 INFO L268 CegarLoopResult]: For program point L52-1(line 52) no Hoare annotation was computed. [2020-10-13 23:23:07,005 INFO L268 CegarLoopResult]: For program point L44-2(lines 44 48) no Hoare annotation was computed. [2020-10-13 23:23:07,005 INFO L264 CegarLoopResult]: At program point L44-3(lines 44 48) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~n~0 0)) [2020-10-13 23:23:07,005 INFO L268 CegarLoopResult]: For program point L36-2(lines 36 39) no Hoare annotation was computed. [2020-10-13 23:23:07,005 INFO L264 CegarLoopResult]: At program point L36-3(lines 36 39) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~n~0 0)) [2020-10-13 23:23:07,005 INFO L268 CegarLoopResult]: For program point L36-4(lines 36 39) no Hoare annotation was computed. [2020-10-13 23:23:07,006 INFO L268 CegarLoopResult]: For program point L28-2(lines 28 32) no Hoare annotation was computed. [2020-10-13 23:23:07,006 INFO L264 CegarLoopResult]: At program point L28-3(lines 28 32) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~n~0 0)) [2020-10-13 23:23:07,006 INFO L268 CegarLoopResult]: For program point L28-4(lines 28 32) no Hoare annotation was computed. [2020-10-13 23:23:07,006 INFO L268 CegarLoopResult]: For program point L45-2(lines 45 47) no Hoare annotation was computed. [2020-10-13 23:23:07,006 INFO L264 CegarLoopResult]: At program point L45-3(lines 45 47) the Hoare annotation is: false [2020-10-13 23:23:07,006 INFO L268 CegarLoopResult]: For program point L29-2(lines 29 31) no Hoare annotation was computed. [2020-10-13 23:23:07,006 INFO L264 CegarLoopResult]: At program point L29-3(lines 29 31) the Hoare annotation is: false [2020-10-13 23:23:07,007 INFO L264 CegarLoopResult]: At program point L46(line 46) the Hoare annotation is: false [2020-10-13 23:23:07,007 INFO L268 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-10-13 23:23:07,007 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 56) no Hoare annotation was computed. [2020-10-13 23:23:07,007 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: false [2020-10-13 23:23:07,007 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 16 56) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-13 23:23:07,007 INFO L268 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-10-13 23:23:07,008 INFO L268 CegarLoopResult]: For program point L22-2(lines 22 25) no Hoare annotation was computed. [2020-10-13 23:23:07,008 INFO L264 CegarLoopResult]: At program point L22-3(lines 22 25) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~n~0 0)) [2020-10-13 23:23:07,008 INFO L268 CegarLoopResult]: For program point L22-4(lines 22 25) no Hoare annotation was computed. [2020-10-13 23:23:07,008 INFO L268 CegarLoopResult]: For program point L40-2(lines 40 49) no Hoare annotation was computed. [2020-10-13 23:23:07,008 INFO L264 CegarLoopResult]: At program point L40-3(lines 40 49) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~n~0 0)) [2020-10-13 23:23:07,008 INFO L268 CegarLoopResult]: For program point L40-4(lines 40 49) no Hoare annotation was computed. [2020-10-13 23:23:07,009 INFO L264 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~n~0 0)) [2020-10-13 23:23:07,009 INFO L268 CegarLoopResult]: For program point L41-1(line 41) no Hoare annotation was computed. [2020-10-13 23:23:07,009 INFO L268 CegarLoopResult]: For program point L41-2(lines 41 43) no Hoare annotation was computed. [2020-10-13 23:23:07,009 INFO L268 CegarLoopResult]: For program point L41-4(lines 41 43) no Hoare annotation was computed. [2020-10-13 23:23:07,009 INFO L268 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2020-10-13 23:23:07,009 INFO L264 CegarLoopResult]: At program point L50-3(lines 50 54) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~n~0 0)) [2020-10-13 23:23:07,010 INFO L268 CegarLoopResult]: For program point L50-4(lines 50 54) no Hoare annotation was computed. [2020-10-13 23:23:07,010 INFO L264 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: false [2020-10-13 23:23:07,010 INFO L268 CegarLoopResult]: For program point L42-1(line 42) no Hoare annotation was computed. [2020-10-13 23:23:07,010 INFO L268 CegarLoopResult]: For program point L51-2(lines 51 53) no Hoare annotation was computed. [2020-10-13 23:23:07,010 INFO L264 CegarLoopResult]: At program point L51-3(lines 51 53) the Hoare annotation is: false [2020-10-13 23:23:07,010 INFO L268 CegarLoopResult]: For program point L2-1(line 2) no Hoare annotation was computed. [2020-10-13 23:23:07,010 INFO L268 CegarLoopResult]: For program point L2-3(line 2) no Hoare annotation was computed. [2020-10-13 23:23:07,011 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2020-10-13 23:23:07,011 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2020-10-13 23:23:07,011 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2020-10-13 23:23:07,011 INFO L268 CegarLoopResult]: For program point L2(line 2) no Hoare annotation was computed. [2020-10-13 23:23:07,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 11:23:07 BoogieIcfgContainer [2020-10-13 23:23:07,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 23:23:07,037 INFO L168 Benchmark]: Toolchain (without parser) took 17651.44 ms. Allocated memory was 139.5 MB in the beginning and 435.7 MB in the end (delta: 296.2 MB). Free memory was 102.7 MB in the beginning and 221.4 MB in the end (delta: -118.7 MB). Peak memory consumption was 177.5 MB. Max. memory is 7.1 GB. [2020-10-13 23:23:07,038 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 23:23:07,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.85 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 102.5 MB in the beginning and 180.3 MB in the end (delta: -77.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-10-13 23:23:07,040 INFO L168 Benchmark]: Boogie Preprocessor took 49.31 ms. Allocated memory is still 201.9 MB. Free memory was 180.3 MB in the beginning and 177.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-13 23:23:07,041 INFO L168 Benchmark]: RCFGBuilder took 503.28 ms. Allocated memory is still 201.9 MB. Free memory was 177.6 MB in the beginning and 154.6 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-10-13 23:23:07,042 INFO L168 Benchmark]: TraceAbstraction took 16735.71 ms. Allocated memory was 201.9 MB in the beginning and 435.7 MB in the end (delta: 233.8 MB). Free memory was 154.0 MB in the beginning and 221.4 MB in the end (delta: -67.4 MB). Peak memory consumption was 166.4 MB. Max. memory is 7.1 GB. [2020-10-13 23:23:07,045 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 357.85 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 102.5 MB in the beginning and 180.3 MB in the end (delta: -77.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.31 ms. Allocated memory is still 201.9 MB. Free memory was 180.3 MB in the beginning and 177.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 503.28 ms. Allocated memory is still 201.9 MB. Free memory was 177.6 MB in the beginning and 154.6 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16735.71 ms. Allocated memory was 201.9 MB in the beginning and 435.7 MB in the end (delta: 233.8 MB). Free memory was 154.0 MB in the beginning and 221.4 MB in the end (delta: -67.4 MB). Peak memory consumption was 166.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: n <= x && n <= 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: n <= x && n <= 0 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: n <= x && n <= 0 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: n <= x && n <= 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: size <= \old(size) + i - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: n <= x && n <= 0 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: n <= x && n <= 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 254 SDtfs, 201 SDslu, 297 SDs, 0 SdLazy, 471 SolverSat, 80 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=4, 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, 5 MinimizatonAttempts, 53 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 51 PreInvPairs, 60 NumberOfFragments, 83 HoareAnnotationTreeSize, 51 FomulaSimplifications, 92 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 22 FomulaSimplificationsInter, 34 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 14.9s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 7316 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 6/6 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...