/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/rule60_list.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-28 01:20:19,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-28 01:20:19,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-28 01:20:19,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-28 01:20:19,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-28 01:20:19,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-28 01:20:19,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-28 01:20:19,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-28 01:20:19,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-28 01:20:19,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-28 01:20:19,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-28 01:20:19,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-28 01:20:19,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-28 01:20:19,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-28 01:20:19,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-28 01:20:19,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-28 01:20:19,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-28 01:20:19,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-28 01:20:19,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-28 01:20:19,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-28 01:20:19,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-28 01:20:19,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-28 01:20:19,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-28 01:20:19,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-28 01:20:19,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-28 01:20:19,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-28 01:20:19,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-28 01:20:19,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-28 01:20:19,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-28 01:20:19,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-28 01:20:19,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-28 01:20:19,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-28 01:20:19,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-28 01:20:19,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-28 01:20:19,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-28 01:20:19,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-28 01:20:19,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-28 01:20:19,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-28 01:20:19,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-28 01:20:19,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-28 01:20:19,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-28 01:20:19,917 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 [2020-08-28 01:20:19,961 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-28 01:20:19,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-28 01:20:19,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-28 01:20:19,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-28 01:20:19,964 INFO L138 SettingsManager]: * Use SBE=true [2020-08-28 01:20:19,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-28 01:20:19,965 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-28 01:20:19,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-28 01:20:19,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-28 01:20:19,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-28 01:20:19,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-28 01:20:19,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-28 01:20:19,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-28 01:20:19,967 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-28 01:20:19,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-28 01:20:19,968 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-28 01:20:19,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-28 01:20:19,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-28 01:20:19,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-28 01:20:19,968 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-28 01:20:19,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-28 01:20:19,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-28 01:20:19,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-28 01:20:19,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-28 01:20:19,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-28 01:20:19,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-28 01:20:19,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-28 01:20:19,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-28 01:20:19,970 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-28 01:20:19,971 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-08-28 01:20:20,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-28 01:20:20,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-28 01:20:20,530 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-28 01:20:20,532 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-28 01:20:20,533 INFO L275 PluginConnector]: CDTParser initialized [2020-08-28 01:20:20,534 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule60_list.i [2020-08-28 01:20:20,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7fc81344/25bb7449573f4f27b5ccfeac20c447d7/FLAGf1294b53f [2020-08-28 01:20:21,207 INFO L306 CDTParser]: Found 1 translation units. [2020-08-28 01:20:21,207 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule60_list.i [2020-08-28 01:20:21,221 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7fc81344/25bb7449573f4f27b5ccfeac20c447d7/FLAGf1294b53f [2020-08-28 01:20:21,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e7fc81344/25bb7449573f4f27b5ccfeac20c447d7 [2020-08-28 01:20:21,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-28 01:20:21,499 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-28 01:20:21,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-28 01:20:21,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-28 01:20:21,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-28 01:20:21,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 01:20:21" (1/1) ... [2020-08-28 01:20:21,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1aa6c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:21, skipping insertion in model container [2020-08-28 01:20:21,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 01:20:21" (1/1) ... [2020-08-28 01:20:21,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-28 01:20:21,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-28 01:20:21,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 01:20:22,052 INFO L203 MainTranslator]: Completed pre-run [2020-08-28 01:20:22,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 01:20:22,198 INFO L208 MainTranslator]: Completed translation [2020-08-28 01:20:22,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:22 WrapperNode [2020-08-28 01:20:22,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-28 01:20:22,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-28 01:20:22,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-28 01:20:22,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-28 01:20:22,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:22" (1/1) ... [2020-08-28 01:20:22,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:22" (1/1) ... [2020-08-28 01:20:22,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:22" (1/1) ... [2020-08-28 01:20:22,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:22" (1/1) ... [2020-08-28 01:20:22,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:22" (1/1) ... [2020-08-28 01:20:22,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:22" (1/1) ... [2020-08-28 01:20:22,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:22" (1/1) ... [2020-08-28 01:20:22,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-28 01:20:22,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-28 01:20:22,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-28 01:20:22,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-28 01:20:22,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:22" (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 [2020-08-28 01:20:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-28 01:20:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-28 01:20:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-08-28 01:20:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-08-28 01:20:22,360 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-08-28 01:20:22,360 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-28 01:20:22,360 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-28 01:20:22,360 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-08-28 01:20:22,360 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-08-28 01:20:22,360 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-08-28 01:20:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-08-28 01:20:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-08-28 01:20:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-08-28 01:20:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-08-28 01:20:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-08-28 01:20:22,362 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-08-28 01:20:22,362 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-08-28 01:20:22,362 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-08-28 01:20:22,362 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-08-28 01:20:22,363 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-08-28 01:20:22,363 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-08-28 01:20:22,363 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-08-28 01:20:22,363 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-08-28 01:20:22,363 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-08-28 01:20:22,363 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-08-28 01:20:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-08-28 01:20:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-08-28 01:20:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-08-28 01:20:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-08-28 01:20:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-08-28 01:20:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-08-28 01:20:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-08-28 01:20:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-08-28 01:20:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-08-28 01:20:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-08-28 01:20:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-08-28 01:20:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-08-28 01:20:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-08-28 01:20:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-08-28 01:20:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-08-28 01:20:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-08-28 01:20:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-08-28 01:20:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-08-28 01:20:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-08-28 01:20:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-08-28 01:20:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-08-28 01:20:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-28 01:20:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-08-28 01:20:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-08-28 01:20:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-08-28 01:20:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-08-28 01:20:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-08-28 01:20:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-08-28 01:20:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-08-28 01:20:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-08-28 01:20:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-08-28 01:20:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-08-28 01:20:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-08-28 01:20:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-08-28 01:20:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-08-28 01:20:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-08-28 01:20:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-08-28 01:20:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-08-28 01:20:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-08-28 01:20:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-08-28 01:20:22,370 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-08-28 01:20:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-08-28 01:20:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-08-28 01:20:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-08-28 01:20:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-08-28 01:20:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-08-28 01:20:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-08-28 01:20:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-08-28 01:20:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-08-28 01:20:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-08-28 01:20:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-08-28 01:20:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-08-28 01:20:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-08-28 01:20:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-08-28 01:20:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-08-28 01:20:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-08-28 01:20:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-28 01:20:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-08-28 01:20:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-08-28 01:20:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-08-28 01:20:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-08-28 01:20:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-08-28 01:20:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-08-28 01:20:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-08-28 01:20:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-08-28 01:20:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-08-28 01:20:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-08-28 01:20:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-08-28 01:20:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-08-28 01:20:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-08-28 01:20:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-08-28 01:20:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-08-28 01:20:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-08-28 01:20:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-08-28 01:20:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-08-28 01:20:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-08-28 01:20:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-08-28 01:20:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-08-28 01:20:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-08-28 01:20:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-08-28 01:20:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-08-28 01:20:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-08-28 01:20:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-08-28 01:20:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-08-28 01:20:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-28 01:20:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-28 01:20:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-28 01:20:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-28 01:20:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-28 01:20:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure memalign [2020-08-28 01:20:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-28 01:20:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure pvalloc [2020-08-28 01:20:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure __default_morecore [2020-08-28 01:20:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure mallinfo [2020-08-28 01:20:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure mallopt [2020-08-28 01:20:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_trim [2020-08-28 01:20:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_usable_size [2020-08-28 01:20:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_stats [2020-08-28 01:20:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_info [2020-08-28 01:20:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_get_state [2020-08-28 01:20:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure malloc_set_state [2020-08-28 01:20:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure __malloc_check_init [2020-08-28 01:20:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-08-28 01:20:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-28 01:20:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-28 01:20:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-08-28 01:20:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-28 01:20:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-28 01:20:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-28 01:20:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-28 01:20:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-28 01:20:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-28 01:20:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-28 01:20:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-28 01:20:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-28 01:20:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-28 01:20:22,855 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-28 01:20:22,855 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-28 01:20:22,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 01:20:22 BoogieIcfgContainer [2020-08-28 01:20:22,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-28 01:20:22,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-28 01:20:22,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-28 01:20:22,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-28 01:20:22,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 01:20:21" (1/3) ... [2020-08-28 01:20:22,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ab6310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 01:20:22, skipping insertion in model container [2020-08-28 01:20:22,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:22" (2/3) ... [2020-08-28 01:20:22,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ab6310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 01:20:22, skipping insertion in model container [2020-08-28 01:20:22,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 01:20:22" (3/3) ... [2020-08-28 01:20:22,878 INFO L109 eAbstractionObserver]: Analyzing ICFG rule60_list.i [2020-08-28 01:20:22,890 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-28 01:20:22,901 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-28 01:20:22,922 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-28 01:20:22,948 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-28 01:20:22,948 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-28 01:20:22,948 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-28 01:20:22,948 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-28 01:20:22,948 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-28 01:20:22,948 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-28 01:20:22,949 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-28 01:20:22,949 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-28 01:20:22,970 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-08-28 01:20:22,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-08-28 01:20:22,978 INFO L414 BasicCegarLoop]: Found error trace [2020-08-28 01:20:22,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-28 01:20:22,980 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-28 01:20:22,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-28 01:20:22,988 INFO L82 PathProgramCache]: Analyzing trace with hash 2070742689, now seen corresponding path program 1 times [2020-08-28 01:20:22,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-28 01:20:23,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258477803] [2020-08-28 01:20:23,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-28 01:20:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-28 01:20:23,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-28 01:20:23,167 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Proof production must be enabled (you can do this via setOption). at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:211) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:170) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-08-28 01:20:23,174 INFO L168 Benchmark]: Toolchain (without parser) took 1674.90 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 108.6 MB in the end (delta: -7.1 MB). Peak memory consumption was 55.8 MB. Max. memory is 7.1 GB. [2020-08-28 01:20:23,175 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-28 01:20:23,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.74 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 101.3 MB in the beginning and 167.9 MB in the end (delta: -66.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-08-28 01:20:23,178 INFO L168 Benchmark]: Boogie Preprocessor took 62.40 ms. Allocated memory is still 202.4 MB. Free memory was 167.9 MB in the beginning and 165.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-08-28 01:20:23,179 INFO L168 Benchmark]: RCFGBuilder took 600.06 ms. Allocated memory is still 202.4 MB. Free memory was 164.5 MB in the beginning and 121.9 MB in the end (delta: 42.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 7.1 GB. [2020-08-28 01:20:23,180 INFO L168 Benchmark]: TraceAbstraction took 306.74 ms. Allocated memory is still 202.4 MB. Free memory was 121.2 MB in the beginning and 108.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-08-28 01:20:23,185 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 699.74 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 101.3 MB in the beginning and 167.9 MB in the end (delta: -66.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.40 ms. Allocated memory is still 202.4 MB. Free memory was 167.9 MB in the beginning and 165.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 600.06 ms. Allocated memory is still 202.4 MB. Free memory was 164.5 MB in the beginning and 121.9 MB in the end (delta: 42.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 306.74 ms. Allocated memory is still 202.4 MB. Free memory was 121.2 MB in the beginning and 108.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Proof production must be enabled (you can do this via setOption). de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Proof production must be enabled (you can do this via setOption).: de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...