/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-manipulation/merge_sort-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:57:13,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:57:13,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:57:13,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:57:13,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:57:13,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:57:13,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:57:13,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:57:13,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:57:13,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:57:13,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:57:13,532 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:57:13,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:57:13,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:57:13,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:57:13,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:57:13,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:57:13,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:57:13,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:57:13,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:57:13,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:57:13,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:57:13,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:57:13,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:57:13,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:57:13,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:57:13,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:57:13,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:57:13,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:57:13,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:57:13,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:57:13,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:57:13,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:57:13,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:57:13,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:57:13,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:57:13,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:57:13,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:57:13,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:57:13,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:57:13,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:57:13,561 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 00:57:13,588 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:57:13,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:57:13,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:57:13,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:57:13,590 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:57:13,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:57:13,591 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:57:13,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:57:13,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:57:13,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:57:13,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:57:13,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:57:13,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:57:13,592 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:57:13,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:57:13,593 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:57:13,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:57:13,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:57:13,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:57:13,594 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:57:13,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:57:13,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:57:13,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:57:13,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:57:13,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:57:13,595 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:57:13,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:57:13,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:57:13,596 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:57:13,596 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:57:14,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:57:14,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:57:14,074 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:57:14,078 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:57:14,080 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:57:14,081 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/merge_sort-1.i [2020-09-25 00:57:14,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/31d85028a/57db727c86024105a8d1fa83831ac307/FLAGa6f916e55 [2020-09-25 00:57:14,759 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:57:14,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/merge_sort-1.i [2020-09-25 00:57:14,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/31d85028a/57db727c86024105a8d1fa83831ac307/FLAGa6f916e55 [2020-09-25 00:57:15,001 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/31d85028a/57db727c86024105a8d1fa83831ac307 [2020-09-25 00:57:15,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:57:15,021 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:57:15,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:57:15,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:57:15,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:57:15,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:57:15" (1/1) ... [2020-09-25 00:57:15,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d78f5d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:15, skipping insertion in model container [2020-09-25 00:57:15,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:57:15" (1/1) ... [2020-09-25 00:57:15,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:57:15,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:57:15,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:57:15,627 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:57:15,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:57:15,763 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:57:15,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:15 WrapperNode [2020-09-25 00:57:15,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:57:15,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:57:15,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:57:15,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:57:15,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:15" (1/1) ... [2020-09-25 00:57:15,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:15" (1/1) ... [2020-09-25 00:57:15,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:15" (1/1) ... [2020-09-25 00:57:15,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:15" (1/1) ... [2020-09-25 00:57:15,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:15" (1/1) ... [2020-09-25 00:57:15,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:15" (1/1) ... [2020-09-25 00:57:15,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:15" (1/1) ... [2020-09-25 00:57:15,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:57:15,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:57:15,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:57:15,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:57:15,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:15" (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 00:57:15,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:57:15,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:57:15,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 00:57:15,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 00:57:15,942 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-09-25 00:57:15,942 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2020-09-25 00:57:15,942 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_pair [2020-09-25 00:57:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sort_core [2020-09-25 00:57:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_before [2020-09-25 00:57:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_after [2020-09-25 00:57:15,943 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:57:15,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:57:15,944 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 00:57:15,944 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 00:57:15,944 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 00:57:15,944 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 00:57:15,944 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 00:57:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 00:57:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 00:57:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 00:57:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 00:57:15,946 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 00:57:15,946 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 00:57:15,946 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 00:57:15,946 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 00:57:15,946 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 00:57:15,946 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 00:57:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 00:57:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 00:57:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 00:57:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 00:57:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 00:57:15,947 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 00:57:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 00:57:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 00:57:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 00:57:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 00:57:15,948 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 00:57:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 00:57:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 00:57:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 00:57:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 00:57:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 00:57:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 00:57:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 00:57:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 00:57:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 00:57:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 00:57:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 00:57:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 00:57:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 00:57:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 00:57:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 00:57:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 00:57:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 00:57:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 00:57:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 00:57:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 00:57:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 00:57:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 00:57:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 00:57:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 00:57:15,953 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 00:57:15,953 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 00:57:15,953 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 00:57:15,953 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 00:57:15,953 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 00:57:15,953 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 00:57:15,954 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 00:57:15,954 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 00:57:15,954 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 00:57:15,954 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 00:57:15,954 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 00:57:15,954 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 00:57:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 00:57:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 00:57:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 00:57:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 00:57:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 00:57:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 00:57:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 00:57:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 00:57:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 00:57:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 00:57:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 00:57:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 00:57:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 00:57:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 00:57:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 00:57:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 00:57:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 00:57:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 00:57:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 00:57:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 00:57:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 00:57:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 00:57:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 00:57:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 00:57:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 00:57:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 00:57:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 00:57:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 00:57:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 00:57:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 00:57:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 00:57:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 00:57:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 00:57:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 00:57:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 00:57:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 00:57:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 00:57:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 00:57:15,960 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 00:57:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 00:57:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:57:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-09-25 00:57:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2020-09-25 00:57:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 00:57:15,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 00:57:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure merge_pair [2020-09-25 00:57:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:57:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:57:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:57:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sort_core [2020-09-25 00:57:15,962 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_before [2020-09-25 00:57:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_after [2020-09-25 00:57:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:57:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 00:57:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:57:15,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:57:15,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:57:16,903 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:57:16,904 INFO L295 CfgBuilder]: Removed 33 assume(true) statements. [2020-09-25 00:57:16,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:57:16 BoogieIcfgContainer [2020-09-25 00:57:16,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:57:16,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:57:16,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:57:16,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:57:16,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:57:15" (1/3) ... [2020-09-25 00:57:16,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1dab3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:57:16, skipping insertion in model container [2020-09-25 00:57:16,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:15" (2/3) ... [2020-09-25 00:57:16,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1dab3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:57:16, skipping insertion in model container [2020-09-25 00:57:16,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:57:16" (3/3) ... [2020-09-25 00:57:16,919 INFO L109 eAbstractionObserver]: Analyzing ICFG merge_sort-1.i [2020-09-25 00:57:16,931 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:57:16,942 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:57:16,964 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:57:16,997 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:57:16,997 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:57:16,997 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:57:16,998 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:57:16,998 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:57:16,998 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:57:16,998 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:57:16,998 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:57:17,026 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states. [2020-09-25 00:57:17,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-25 00:57:17,035 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:17,036 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:17,037 INFO L427 AbstractCegarLoop]: === Iteration 1 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:17,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:17,044 INFO L82 PathProgramCache]: Analyzing trace with hash -2091922853, now seen corresponding path program 1 times [2020-09-25 00:57:17,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:17,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [913469458] [2020-09-25 00:57:17,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:17,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:17,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:17,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:17,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:17,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 00:57:17,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:57:17,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-09-25 00:57:17,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:17,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:57:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:57:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:57:17,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:57:17,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:17,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:17,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:17,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:57:17,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:17,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:57:17,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:17,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:17,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:17,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:17,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:17,710 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 00:57:17,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [913469458] [2020-09-25 00:57:17,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:17,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 00:57:17,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464403800] [2020-09-25 00:57:17,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:57:17,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:17,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:57:17,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:57:17,744 INFO L87 Difference]: Start difference. First operand 248 states. Second operand 6 states. [2020-09-25 00:57:18,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:18,838 INFO L93 Difference]: Finished difference Result 557 states and 746 transitions. [2020-09-25 00:57:18,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:57:18,841 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-09-25 00:57:18,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:18,867 INFO L225 Difference]: With dead ends: 557 [2020-09-25 00:57:18,868 INFO L226 Difference]: Without dead ends: 271 [2020-09-25 00:57:18,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:57:18,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-09-25 00:57:18,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 229. [2020-09-25 00:57:18,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-09-25 00:57:18,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 252 transitions. [2020-09-25 00:57:18,963 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 252 transitions. Word has length 15 [2020-09-25 00:57:18,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:18,963 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 252 transitions. [2020-09-25 00:57:18,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:57:18,964 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 252 transitions. [2020-09-25 00:57:18,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-25 00:57:18,965 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:18,965 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] [2020-09-25 00:57:18,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:57:18,965 INFO L427 AbstractCegarLoop]: === Iteration 2 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:18,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:18,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1718433881, now seen corresponding path program 1 times [2020-09-25 00:57:18,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:18,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981179532] [2020-09-25 00:57:18,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:18,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:19,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:19,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:19,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:19,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:19,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 00:57:19,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:57:19,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 661 [2020-09-25 00:57:19,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:19,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:57:19,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 00:57:19,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:57:19,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:19,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:19,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:19,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:19,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:57:19,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:19,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:57:19,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:19,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:19,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:19,773 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 00:57:19,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [981179532] [2020-09-25 00:57:19,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:19,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 00:57:19,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168732871] [2020-09-25 00:57:19,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:57:19,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:19,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:57:19,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:57:19,785 INFO L87 Difference]: Start difference. First operand 229 states and 252 transitions. Second operand 6 states. [2020-09-25 00:57:20,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:20,515 INFO L93 Difference]: Finished difference Result 259 states and 289 transitions. [2020-09-25 00:57:20,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:57:20,516 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-09-25 00:57:20,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:20,520 INFO L225 Difference]: With dead ends: 259 [2020-09-25 00:57:20,520 INFO L226 Difference]: Without dead ends: 255 [2020-09-25 00:57:20,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:57:20,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-09-25 00:57:20,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 227. [2020-09-25 00:57:20,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-25 00:57:20,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 249 transitions. [2020-09-25 00:57:20,544 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 249 transitions. Word has length 26 [2020-09-25 00:57:20,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:20,544 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 249 transitions. [2020-09-25 00:57:20,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:57:20,545 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 249 transitions. [2020-09-25 00:57:20,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-25 00:57:20,546 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:20,546 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] [2020-09-25 00:57:20,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:57:20,547 INFO L427 AbstractCegarLoop]: === Iteration 3 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:20,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:20,547 INFO L82 PathProgramCache]: Analyzing trace with hash 195902205, now seen corresponding path program 1 times [2020-09-25 00:57:20,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:20,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911074741] [2020-09-25 00:57:20,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:20,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:20,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:20,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:20,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:20,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:20,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 00:57:20,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:57:20,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-09-25 00:57:20,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:20,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:57:20,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 00:57:20,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:57:20,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:21,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:21,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:21,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:21,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:57:21,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:21,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:57:21,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:21,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:21,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:21,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:21,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:21,065 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 00:57:21,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911074741] [2020-09-25 00:57:21,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:21,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 00:57:21,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718611431] [2020-09-25 00:57:21,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:57:21,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:21,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:57:21,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:57:21,067 INFO L87 Difference]: Start difference. First operand 227 states and 249 transitions. Second operand 6 states. [2020-09-25 00:57:21,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:21,817 INFO L93 Difference]: Finished difference Result 257 states and 286 transitions. [2020-09-25 00:57:21,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:57:21,818 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-09-25 00:57:21,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:21,820 INFO L225 Difference]: With dead ends: 257 [2020-09-25 00:57:21,820 INFO L226 Difference]: Without dead ends: 253 [2020-09-25 00:57:21,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:57:21,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-09-25 00:57:21,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 225. [2020-09-25 00:57:21,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-09-25 00:57:21,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 246 transitions. [2020-09-25 00:57:21,869 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 246 transitions. Word has length 26 [2020-09-25 00:57:21,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:21,872 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 246 transitions. [2020-09-25 00:57:21,872 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:57:21,872 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 246 transitions. [2020-09-25 00:57:21,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 00:57:21,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:21,874 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] [2020-09-25 00:57:21,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:57:21,874 INFO L427 AbstractCegarLoop]: === Iteration 4 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:21,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:21,878 INFO L82 PathProgramCache]: Analyzing trace with hash 987423277, now seen corresponding path program 1 times [2020-09-25 00:57:21,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:21,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283700054] [2020-09-25 00:57:21,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:21,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:21,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:21,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:22,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:22,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 00:57:22,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:57:22,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-09-25 00:57:22,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:22,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:57:22,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 00:57:22,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 00:57:22,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:22,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:22,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:22,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:22,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:57:22,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:22,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 00:57:22,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:22,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:22,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:22,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:22,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:22,188 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 00:57:22,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283700054] [2020-09-25 00:57:22,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:22,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 00:57:22,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353365649] [2020-09-25 00:57:22,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:57:22,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:22,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:57:22,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:57:22,195 INFO L87 Difference]: Start difference. First operand 225 states and 246 transitions. Second operand 6 states. [2020-09-25 00:57:22,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:22,909 INFO L93 Difference]: Finished difference Result 455 states and 500 transitions. [2020-09-25 00:57:22,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:57:22,910 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-09-25 00:57:22,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:22,912 INFO L225 Difference]: With dead ends: 455 [2020-09-25 00:57:22,912 INFO L226 Difference]: Without dead ends: 254 [2020-09-25 00:57:22,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 00:57:22,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-25 00:57:22,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 227. [2020-09-25 00:57:22,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-25 00:57:22,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 248 transitions. [2020-09-25 00:57:22,929 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 248 transitions. Word has length 30 [2020-09-25 00:57:22,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:22,929 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 248 transitions. [2020-09-25 00:57:22,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:57:22,929 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 248 transitions. [2020-09-25 00:57:22,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-25 00:57:22,931 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:22,931 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:22,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:57:22,932 INFO L427 AbstractCegarLoop]: === Iteration 5 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:22,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:22,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1598586176, now seen corresponding path program 1 times [2020-09-25 00:57:22,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:22,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [181402556] [2020-09-25 00:57:22,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:22,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:23,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:23,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:23,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 00:57:23,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:57:23,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 847 [2020-09-25 00:57:23,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:23,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:57:23,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 00:57:23,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 00:57:23,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:23,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:23,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:23,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:23,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:57:23,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:23,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 00:57:23,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:23,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:23,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:23,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:23,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:23,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:23,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [181402556] [2020-09-25 00:57:23,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:23,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:57:23,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497457619] [2020-09-25 00:57:23,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:57:23,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:23,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:57:23,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:57:23,971 INFO L87 Difference]: Start difference. First operand 227 states and 248 transitions. Second operand 9 states. [2020-09-25 00:57:25,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:25,229 INFO L93 Difference]: Finished difference Result 299 states and 329 transitions. [2020-09-25 00:57:25,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:57:25,231 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 46 [2020-09-25 00:57:25,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:25,233 INFO L225 Difference]: With dead ends: 299 [2020-09-25 00:57:25,233 INFO L226 Difference]: Without dead ends: 295 [2020-09-25 00:57:25,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:57:25,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-25 00:57:25,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 234. [2020-09-25 00:57:25,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-25 00:57:25,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 255 transitions. [2020-09-25 00:57:25,248 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 255 transitions. Word has length 46 [2020-09-25 00:57:25,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:25,248 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 255 transitions. [2020-09-25 00:57:25,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:57:25,248 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 255 transitions. [2020-09-25 00:57:25,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-25 00:57:25,250 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:25,250 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:25,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:57:25,251 INFO L427 AbstractCegarLoop]: === Iteration 6 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:25,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:25,251 INFO L82 PathProgramCache]: Analyzing trace with hash 180139286, now seen corresponding path program 1 times [2020-09-25 00:57:25,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:25,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [901275936] [2020-09-25 00:57:25,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:25,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:25,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:25,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:25,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:29,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:29,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 00:57:29,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:57:29,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4257 [2020-09-25 00:57:29,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:29,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:57:29,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 00:57:29,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 00:57:29,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:29,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:29,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:29,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:29,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:57:29,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:29,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:57:29,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:29,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:29,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:29,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:29,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:29,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:29,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [901275936] [2020-09-25 00:57:29,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:29,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:57:29,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911735731] [2020-09-25 00:57:29,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:57:29,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:29,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:57:29,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:57:29,684 INFO L87 Difference]: Start difference. First operand 234 states and 255 transitions. Second operand 9 states. [2020-09-25 00:57:30,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:30,976 INFO L93 Difference]: Finished difference Result 297 states and 326 transitions. [2020-09-25 00:57:30,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:57:30,977 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 46 [2020-09-25 00:57:30,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:30,980 INFO L225 Difference]: With dead ends: 297 [2020-09-25 00:57:30,980 INFO L226 Difference]: Without dead ends: 293 [2020-09-25 00:57:30,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:57:30,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-25 00:57:30,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 241. [2020-09-25 00:57:30,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-09-25 00:57:31,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 262 transitions. [2020-09-25 00:57:31,001 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 262 transitions. Word has length 46 [2020-09-25 00:57:31,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:31,003 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 262 transitions. [2020-09-25 00:57:31,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:57:31,006 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 262 transitions. [2020-09-25 00:57:31,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 00:57:31,011 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:31,011 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:31,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:57:31,011 INFO L427 AbstractCegarLoop]: === Iteration 7 === [failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:31,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:31,012 INFO L82 PathProgramCache]: Analyzing trace with hash 797684937, now seen corresponding path program 1 times [2020-09-25 00:57:31,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:31,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829295882] [2020-09-25 00:57:31,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 00:57:31,034 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 00:57:31,035 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 00:57:31,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 00:57:31,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:57:31 BoogieIcfgContainer [2020-09-25 00:57:31,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:57:31,068 INFO L168 Benchmark]: Toolchain (without parser) took 16049.03 ms. Allocated memory was 146.8 MB in the beginning and 356.0 MB in the end (delta: 209.2 MB). Free memory was 102.0 MB in the beginning and 195.2 MB in the end (delta: -93.2 MB). Peak memory consumption was 116.0 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:31,069 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 00:57:31,070 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.02 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 101.6 MB in the beginning and 167.9 MB in the end (delta: -66.3 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:31,071 INFO L168 Benchmark]: Boogie Preprocessor took 95.14 ms. Allocated memory is still 203.4 MB. Free memory was 167.9 MB in the beginning and 163.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:31,072 INFO L168 Benchmark]: RCFGBuilder took 1049.79 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 163.9 MB in the beginning and 201.9 MB in the end (delta: -38.0 MB). Peak memory consumption was 79.5 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:31,073 INFO L168 Benchmark]: TraceAbstraction took 14152.44 ms. Allocated memory was 237.0 MB in the beginning and 356.0 MB in the end (delta: 119.0 MB). Free memory was 200.5 MB in the beginning and 195.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 124.4 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:31,077 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 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.02 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 101.6 MB in the beginning and 167.9 MB in the end (delta: -66.3 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.14 ms. Allocated memory is still 203.4 MB. Free memory was 167.9 MB in the beginning and 163.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1049.79 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 163.9 MB in the beginning and 201.9 MB in the end (delta: -38.0 MB). Peak memory consumption was 79.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14152.44 ms. Allocated memory was 237.0 MB in the beginning and 356.0 MB in the end (delta: 119.0 MB). Free memory was 200.5 MB in the beginning and 195.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 124.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 554]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L627] struct list *data = ((void *)0); [L628] COND TRUE __VERIFIER_nondet_int() [L629] struct node *node = malloc(sizeof *node); [L630] COND FALSE !(!node) [L632] node->next = node [L633] node->value = __VERIFIER_nondet_int() [L634] struct list *item = malloc(sizeof *item); [L635] COND FALSE !(!item) [L637] item->slist = node [L638] item->next = data [L639] data = item [L628] COND FALSE !(__VERIFIER_nondet_int()) [L641] COND FALSE !(!data) [L643] CALL inspect_before(data) [L604] COND FALSE !(!(shape)) [L605] shape->next [L605] COND FALSE !(shape->next) [L611] COND FALSE !(!(shape)) [L612] EXPR shape->next [L612] COND FALSE !(!(shape->next == ((void *)0))) [L613] EXPR shape->slist [L613] COND FALSE !(!(shape->slist)) [L614] EXPR shape->slist [L614] EXPR shape->slist->next [L614] COND TRUE !(shape->slist->next == ((void *)0)) [L614] CALL fail() [L554] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.0s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1399 SDtfs, 1495 SDslu, 2370 SDs, 0 SdLazy, 3840 SolverSat, 174 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=248occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 238 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 241 NumberOfCodeBlocks, 241 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 51963 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 4/4 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 incorrect! Received shutdown request...