/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-circular-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:50:04,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:50:04,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:50:04,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:50:04,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:50:04,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:50:04,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:50:04,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:50:04,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:50:04,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:50:04,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:50:04,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:50:04,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:50:04,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:50:04,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:50:04,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:50:04,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:50:04,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:50:04,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:50:04,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:50:04,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:50:04,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:50:04,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:50:04,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:50:04,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:50:04,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:50:04,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:50:04,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:50:04,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:50:04,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:50:04,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:50:04,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:50:04,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:50:04,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:50:04,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:50:04,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:50:04,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:50:04,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:50:04,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:50:04,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:50:04,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:50:04,435 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 07:50:04,487 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:50:04,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:50:04,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:50:04,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:50:04,490 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:50:04,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:50:04,491 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:50:04,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:50:04,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:50:04,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:50:04,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:50:04,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:50:04,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:50:04,493 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:50:04,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:50:04,494 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:50:04,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:50:04,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:50:04,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:50:04,495 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:50:04,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:50:04,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:50:04,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:50:04,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:50:04,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:50:04,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:50:04,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:50:04,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:50:04,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:50:04,497 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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:50:05,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:50:05,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:50:05,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:50:05,077 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:50:05,077 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:50:05,078 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-circular-2.i [2020-09-25 07:50:05,173 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fbf0886f5/890cdf33f18046fcab9380a3b6d2586b/FLAG821edf602 [2020-09-25 07:50:05,800 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:50:05,801 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/sll-circular-2.i [2020-09-25 07:50:05,817 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fbf0886f5/890cdf33f18046fcab9380a3b6d2586b/FLAG821edf602 [2020-09-25 07:50:06,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fbf0886f5/890cdf33f18046fcab9380a3b6d2586b [2020-09-25 07:50:06,077 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:50:06,083 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:50:06,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:50:06,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:50:06,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:50:06,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:50:06" (1/1) ... [2020-09-25 07:50:06,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c42496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06, skipping insertion in model container [2020-09-25 07:50:06,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:50:06" (1/1) ... [2020-09-25 07:50:06,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:50:06,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:50:06,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:50:06,660 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:50:06,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:50:06,805 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:50:06,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06 WrapperNode [2020-09-25 07:50:06,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:50:06,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:50:06,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:50:06,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:50:06,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06" (1/1) ... [2020-09-25 07:50:06,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06" (1/1) ... [2020-09-25 07:50:06,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06" (1/1) ... [2020-09-25 07:50:06,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06" (1/1) ... [2020-09-25 07:50:06,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06" (1/1) ... [2020-09-25 07:50:06,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06" (1/1) ... [2020-09-25 07:50:06,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06" (1/1) ... [2020-09-25 07:50:06,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:50:06,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:50:06,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:50:06,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:50:06,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06" (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 07:50:06,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:50:06,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:50:06,984 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:50:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 07:50:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 07:50:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 07:50:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 07:50:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 07:50:06,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 07:50:06,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 07:50:06,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 07:50:06,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 07:50:06,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 07:50:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 07:50:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 07:50:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 07:50:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 07:50:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 07:50:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 07:50:06,988 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 07:50:06,988 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 07:50:06,988 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 07:50:06,988 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 07:50:06,989 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 07:50:06,989 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 07:50:06,989 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 07:50:06,989 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 07:50:06,989 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 07:50:06,989 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 07:50:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 07:50:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 07:50:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 07:50:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 07:50:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 07:50:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 07:50:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 07:50:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 07:50:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 07:50:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 07:50:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 07:50:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 07:50:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 07:50:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 07:50:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 07:50:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 07:50:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 07:50:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 07:50:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 07:50:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 07:50:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 07:50:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 07:50:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 07:50:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 07:50:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:50:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 07:50:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 07:50:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:50:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 07:50:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 07:50:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 07:50:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 07:50:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-25 07:50:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 07:50:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 07:50:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-25 07:50:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 07:50:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 07:50:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-25 07:50:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 07:50:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 07:50:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 07:50:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 07:50:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 07:50:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 07:50:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 07:50:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 07:50:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 07:50:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 07:50:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 07:50:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 07:50:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 07:50:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 07:50:06,998 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 07:50:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 07:50:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 07:50:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 07:50:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 07:50:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 07:50:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 07:50:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 07:50:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 07:50:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 07:50:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 07:50:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 07:50:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 07:50:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 07:50:07,001 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 07:50:07,001 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 07:50:07,001 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 07:50:07,001 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 07:50:07,001 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 07:50:07,001 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 07:50:07,002 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 07:50:07,002 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 07:50:07,002 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 07:50:07,002 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 07:50:07,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:50:07,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:50:07,002 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:50:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:50:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:50:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:50:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:50:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:50:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:50:07,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:50:07,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:50:07,583 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:50:07,583 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-09-25 07:50:07,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:50:07 BoogieIcfgContainer [2020-09-25 07:50:07,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:50:07,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:50:07,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:50:07,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:50:07,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:50:06" (1/3) ... [2020-09-25 07:50:07,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5caed765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:50:07, skipping insertion in model container [2020-09-25 07:50:07,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:50:06" (2/3) ... [2020-09-25 07:50:07,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5caed765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:50:07, skipping insertion in model container [2020-09-25 07:50:07,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:50:07" (3/3) ... [2020-09-25 07:50:07,600 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-circular-2.i [2020-09-25 07:50:07,613 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:50:07,625 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-25 07:50:07,649 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-25 07:50:07,687 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:50:07,687 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:50:07,687 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:50:07,687 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:50:07,688 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:50:07,688 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:50:07,688 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:50:07,688 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:50:07,715 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states. [2020-09-25 07:50:07,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-25 07:50:07,725 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:07,726 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] [2020-09-25 07:50:07,727 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:07,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:07,736 INFO L82 PathProgramCache]: Analyzing trace with hash -976698803, now seen corresponding path program 1 times [2020-09-25 07:50:07,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:07,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978533299] [2020-09-25 07:50:07,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:07,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:08,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:08,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:08,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:50:08,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:50:08,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 743 [2020-09-25 07:50:08,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:08,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:08,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:08,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 07:50:08,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:08,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 07:50:08,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:08,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:08,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:08,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:08,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:08,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:50:08,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:08,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:08,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:08,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:08,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:08,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:08,778 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 07:50:08,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978533299] [2020-09-25 07:50:08,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:08,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:50:08,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534730345] [2020-09-25 07:50:08,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:50:08,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:08,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:50:08,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:50:08,813 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 3 states. [2020-09-25 07:50:09,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:09,082 INFO L93 Difference]: Finished difference Result 173 states and 209 transitions. [2020-09-25 07:50:09,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:50:09,084 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-09-25 07:50:09,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:09,099 INFO L225 Difference]: With dead ends: 173 [2020-09-25 07:50:09,100 INFO L226 Difference]: Without dead ends: 74 [2020-09-25 07:50:09,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:50:09,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-25 07:50:09,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-25 07:50:09,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-25 07:50:09,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2020-09-25 07:50:09,174 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 20 [2020-09-25 07:50:09,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:09,174 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2020-09-25 07:50:09,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:50:09,175 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2020-09-25 07:50:09,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-25 07:50:09,177 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:09,177 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] [2020-09-25 07:50:09,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:50:09,178 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:09,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:09,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1430822134, now seen corresponding path program 1 times [2020-09-25 07:50:09,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:09,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090163038] [2020-09-25 07:50:09,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:09,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:09,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:09,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 07:50:09,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:09,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-09-25 07:50:09,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:09,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:09,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:50:09,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:50:09,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:50:09,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:09,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:09,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:09,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:09,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:09,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:09,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:50:09,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:09,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:09,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:09,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:09,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:09,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:50:09,737 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 07:50:09,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1090163038] [2020-09-25 07:50:09,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:09,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:50:09,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985551571] [2020-09-25 07:50:09,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:50:09,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:09,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:50:09,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:50:09,743 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand 9 states. [2020-09-25 07:50:10,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:10,299 INFO L93 Difference]: Finished difference Result 149 states and 157 transitions. [2020-09-25 07:50:10,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:50:10,300 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-25 07:50:10,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:10,302 INFO L225 Difference]: With dead ends: 149 [2020-09-25 07:50:10,303 INFO L226 Difference]: Without dead ends: 147 [2020-09-25 07:50:10,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:50:10,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-09-25 07:50:10,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 82. [2020-09-25 07:50:10,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-25 07:50:10,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2020-09-25 07:50:10,319 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 22 [2020-09-25 07:50:10,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:10,319 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2020-09-25 07:50:10,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:50:10,320 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2020-09-25 07:50:10,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-25 07:50:10,321 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:10,321 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] [2020-09-25 07:50:10,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:50:10,322 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:10,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:10,323 INFO L82 PathProgramCache]: Analyzing trace with hash 340604940, now seen corresponding path program 1 times [2020-09-25 07:50:10,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:10,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465999922] [2020-09-25 07:50:10,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:10,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:10,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:10,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 07:50:10,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:10,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-25 07:50:10,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:10,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:10,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:50:10,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 07:50:10,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:50:10,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:10,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:10,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:10,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:10,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:10,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:10,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:50:10,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:10,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:10,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:10,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:10,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:10,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:10,695 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 07:50:10,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465999922] [2020-09-25 07:50:10,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:10,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:50:10,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557874530] [2020-09-25 07:50:10,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:50:10,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:10,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:50:10,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:50:10,699 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand 7 states. [2020-09-25 07:50:11,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:11,263 INFO L93 Difference]: Finished difference Result 118 states and 125 transitions. [2020-09-25 07:50:11,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:50:11,265 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-09-25 07:50:11,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:11,267 INFO L225 Difference]: With dead ends: 118 [2020-09-25 07:50:11,268 INFO L226 Difference]: Without dead ends: 116 [2020-09-25 07:50:11,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:50:11,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-09-25 07:50:11,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 80. [2020-09-25 07:50:11,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-25 07:50:11,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 86 transitions. [2020-09-25 07:50:11,294 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 86 transitions. Word has length 28 [2020-09-25 07:50:11,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:11,298 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 86 transitions. [2020-09-25 07:50:11,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:50:11,298 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 86 transitions. [2020-09-25 07:50:11,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 07:50:11,300 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:11,301 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] [2020-09-25 07:50:11,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:50:11,301 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:11,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:11,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1933129776, now seen corresponding path program 1 times [2020-09-25 07:50:11,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:11,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [261617265] [2020-09-25 07:50:11,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:11,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:11,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:11,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:13,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:13,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 07:50:13,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:50:13,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1911 [2020-09-25 07:50:13,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:13,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:13,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:50:13,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:50:13,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:50:13,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:50:13,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:13,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:13,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:13,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:13,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:13,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 07:50:13,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:13,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:13,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:13,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:13,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:13,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:13,357 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 07:50:13,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [261617265] [2020-09-25 07:50:13,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:13,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:50:13,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194685564] [2020-09-25 07:50:13,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:50:13,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:13,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:50:13,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:50:13,364 INFO L87 Difference]: Start difference. First operand 80 states and 86 transitions. Second operand 4 states. [2020-09-25 07:50:13,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:13,579 INFO L93 Difference]: Finished difference Result 195 states and 210 transitions. [2020-09-25 07:50:13,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:50:13,580 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-09-25 07:50:13,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:13,583 INFO L225 Difference]: With dead ends: 195 [2020-09-25 07:50:13,584 INFO L226 Difference]: Without dead ends: 136 [2020-09-25 07:50:13,587 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 [2020-09-25 07:50:13,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-25 07:50:13,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 97. [2020-09-25 07:50:13,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-25 07:50:13,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2020-09-25 07:50:13,614 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 33 [2020-09-25 07:50:13,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:13,614 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2020-09-25 07:50:13,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:50:13,615 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2020-09-25 07:50:13,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 07:50:13,619 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:13,619 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] [2020-09-25 07:50:13,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:50:13,621 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:13,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:13,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1127481847, now seen corresponding path program 1 times [2020-09-25 07:50:13,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:13,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002549465] [2020-09-25 07:50:13,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:13,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:13,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:14,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:14,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:16,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:16,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 07:50:16,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:50:16,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2378 [2020-09-25 07:50:16,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:16,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:16,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 07:50:16,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:50:16,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:50:16,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:16,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:16,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:16,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:16,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:16,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:16,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:50:16,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:16,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:16,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:16,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:16,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:16,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:16,309 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 07:50:16,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002549465] [2020-09-25 07:50:16,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:50:16,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 07:50:16,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665800070] [2020-09-25 07:50:16,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 07:50:16,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:16,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 07:50:16,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:50:16,311 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand 12 states. [2020-09-25 07:50:17,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:17,001 INFO L93 Difference]: Finished difference Result 190 states and 201 transitions. [2020-09-25 07:50:17,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 07:50:17,002 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2020-09-25 07:50:17,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:17,003 INFO L225 Difference]: With dead ends: 190 [2020-09-25 07:50:17,005 INFO L226 Difference]: Without dead ends: 160 [2020-09-25 07:50:17,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2020-09-25 07:50:17,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-25 07:50:17,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 105. [2020-09-25 07:50:17,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-25 07:50:17,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 113 transitions. [2020-09-25 07:50:17,028 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 113 transitions. Word has length 37 [2020-09-25 07:50:17,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:17,029 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 113 transitions. [2020-09-25 07:50:17,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 07:50:17,031 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 113 transitions. [2020-09-25 07:50:17,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 07:50:17,033 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:17,033 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] [2020-09-25 07:50:17,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:50:17,034 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:17,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:17,034 INFO L82 PathProgramCache]: Analyzing trace with hash 821991267, now seen corresponding path program 1 times [2020-09-25 07:50:17,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:17,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473261615] [2020-09-25 07:50:17,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:17,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:17,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:18,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:18,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 07:50:18,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:50:18,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1492 [2020-09-25 07:50:18,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:18,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:18,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 07:50:18,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 07:50:18,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:50:18,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:18,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:50:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:50:18,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:50:18,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:50:18,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:50:18,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:50:18,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:50:18,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:50:18,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:50:18,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:50:18,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:50:18,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:50:18,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:50:18,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:50:18,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473261615] [2020-09-25 07:50:18,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:50:18,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 07:50:18,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546418566] [2020-09-25 07:50:18,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 07:50:18,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:50:18,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 07:50:18,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-09-25 07:50:18,902 INFO L87 Difference]: Start difference. First operand 105 states and 113 transitions. Second operand 14 states. [2020-09-25 07:50:19,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:50:19,740 INFO L93 Difference]: Finished difference Result 192 states and 202 transitions. [2020-09-25 07:50:19,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 07:50:19,741 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2020-09-25 07:50:19,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:50:19,742 INFO L225 Difference]: With dead ends: 192 [2020-09-25 07:50:19,743 INFO L226 Difference]: Without dead ends: 190 [2020-09-25 07:50:19,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=269, Invalid=661, Unknown=0, NotChecked=0, Total=930 [2020-09-25 07:50:19,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-09-25 07:50:19,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 103. [2020-09-25 07:50:19,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-09-25 07:50:19,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 111 transitions. [2020-09-25 07:50:19,753 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 111 transitions. Word has length 37 [2020-09-25 07:50:19,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:50:19,753 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 111 transitions. [2020-09-25 07:50:19,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 07:50:19,754 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 111 transitions. [2020-09-25 07:50:19,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-25 07:50:19,755 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:50:19,756 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, 1, 1, 1, 1] [2020-09-25 07:50:19,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:50:19,756 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:50:19,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:50:19,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1168005107, now seen corresponding path program 1 times [2020-09-25 07:50:19,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:50:19,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069941966] [2020-09-25 07:50:19,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:50:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 07:50:19,779 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 07:50:19,779 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 07:50:19,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:50:19,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:50:19 BoogieIcfgContainer [2020-09-25 07:50:19,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:50:19,822 INFO L168 Benchmark]: Toolchain (without parser) took 13740.75 ms. Allocated memory was 139.5 MB in the beginning and 324.5 MB in the end (delta: 185.1 MB). Free memory was 100.0 MB in the beginning and 170.5 MB in the end (delta: -70.5 MB). Peak memory consumption was 114.6 MB. Max. memory is 7.1 GB. [2020-09-25 07:50:19,824 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.3 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-09-25 07:50:19,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.38 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 99.6 MB in the beginning and 171.6 MB in the end (delta: -72.0 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-09-25 07:50:19,831 INFO L168 Benchmark]: Boogie Preprocessor took 81.79 ms. Allocated memory is still 203.9 MB. Free memory was 171.6 MB in the beginning and 168.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-09-25 07:50:19,832 INFO L168 Benchmark]: RCFGBuilder took 698.70 ms. Allocated memory is still 203.9 MB. Free memory was 168.7 MB in the beginning and 119.5 MB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. [2020-09-25 07:50:19,833 INFO L168 Benchmark]: TraceAbstraction took 12226.78 ms. Allocated memory was 203.9 MB in the beginning and 324.5 MB in the end (delta: 120.6 MB). Free memory was 119.5 MB in the beginning and 170.5 MB in the end (delta: -51.1 MB). Peak memory consumption was 69.5 MB. Max. memory is 7.1 GB. [2020-09-25 07:50:19,844 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.3 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 723.38 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 99.6 MB in the beginning and 171.6 MB in the end (delta: -72.0 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 81.79 ms. Allocated memory is still 203.9 MB. Free memory was 171.6 MB in the beginning and 168.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 698.70 ms. Allocated memory is still 203.9 MB. Free memory was 168.7 MB in the beginning and 119.5 MB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12226.78 ms. Allocated memory was 203.9 MB in the beginning and 324.5 MB in the end (delta: 120.6 MB). Free memory was 119.5 MB in the beginning and 170.5 MB in the end (delta: -51.1 MB). Peak memory consumption was 69.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1021]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L985] SLL* head = malloc(sizeof(SLL)); [L986] head->next = head [L987] head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] x->data = state [L1016] EXPR head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) [L1019] EXPR x->data [L1019] COND TRUE x->data != 0 [L1021] EXPR x->next [L1021] EXPR x->next->data [L1021] EXPR x->next->data != 0 && x->data > x->next->data [L1021] EXPR x->data [L1021] EXPR x->next [L1021] EXPR x->next->data [L1021] EXPR x->next->data != 0 && x->data > x->next->data [L1021] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L1021] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 93 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.1s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 493 SDtfs, 1086 SDslu, 1596 SDs, 0 SdLazy, 1078 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=5, 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, 282 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 8.2s InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 171 ConstructedInterpolants, 0 QuantifiedInterpolants, 37104 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 0/2 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...