/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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/alt_test.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-28 02:31:22,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-28 02:31:22,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-28 02:31:22,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-28 02:31:22,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-28 02:31:22,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-28 02:31:22,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-28 02:31:22,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-28 02:31:22,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-28 02:31:22,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-28 02:31:22,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-28 02:31:22,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-28 02:31:22,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-28 02:31:22,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-28 02:31:22,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-28 02:31:22,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-28 02:31:22,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-28 02:31:22,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-28 02:31:22,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-28 02:31:22,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-28 02:31:22,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-28 02:31:22,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-28 02:31:22,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-28 02:31:22,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-28 02:31:22,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-28 02:31:22,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-28 02:31:22,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-28 02:31:22,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-28 02:31:22,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-28 02:31:22,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-28 02:31:22,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-28 02:31:22,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-28 02:31:22,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-28 02:31:22,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-28 02:31:22,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-28 02:31:22,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-28 02:31:22,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-28 02:31:22,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-28 02:31:22,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-28 02:31:22,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-28 02:31:22,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-28 02:31:22,090 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 02:31:22,117 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-28 02:31:22,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-28 02:31:22,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-28 02:31:22,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-28 02:31:22,119 INFO L138 SettingsManager]: * Use SBE=true [2020-08-28 02:31:22,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-28 02:31:22,119 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-28 02:31:22,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-28 02:31:22,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-28 02:31:22,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-28 02:31:22,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-28 02:31:22,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-28 02:31:22,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-28 02:31:22,121 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-28 02:31:22,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-28 02:31:22,121 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-28 02:31:22,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-28 02:31:22,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-28 02:31:22,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-28 02:31:22,122 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-28 02:31:22,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-28 02:31:22,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-28 02:31:22,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-28 02:31:22,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-28 02:31:22,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-28 02:31:22,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-28 02:31:22,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-28 02:31:22,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-28 02:31:22,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-28 02:31:22,124 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=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-08-28 02:31:22,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-28 02:31:22,755 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-28 02:31:22,760 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-28 02:31:22,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-28 02:31:22,762 INFO L275 PluginConnector]: CDTParser initialized [2020-08-28 02:31:22,763 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/alt_test.i [2020-08-28 02:31:22,857 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7164b868a/0528a9bb29d44420b5c61065abcb0ecc/FLAG24efa5700 [2020-08-28 02:31:23,536 INFO L306 CDTParser]: Found 1 translation units. [2020-08-28 02:31:23,538 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/alt_test.i [2020-08-28 02:31:23,557 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7164b868a/0528a9bb29d44420b5c61065abcb0ecc/FLAG24efa5700 [2020-08-28 02:31:23,845 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7164b868a/0528a9bb29d44420b5c61065abcb0ecc [2020-08-28 02:31:23,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-28 02:31:23,860 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-28 02:31:23,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-28 02:31:23,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-28 02:31:23,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-28 02:31:23,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 02:31:23" (1/1) ... [2020-08-28 02:31:23,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b3ac5cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 02:31:23, skipping insertion in model container [2020-08-28 02:31:23,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 02:31:23" (1/1) ... [2020-08-28 02:31:23,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-28 02:31:23,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-28 02:31:24,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 02:31:24,499 INFO L203 MainTranslator]: Completed pre-run [2020-08-28 02:31:24,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 02:31:24,740 INFO L208 MainTranslator]: Completed translation [2020-08-28 02:31:24,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 02:31:24 WrapperNode [2020-08-28 02:31:24,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-28 02:31:24,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-28 02:31:24,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-28 02:31:24,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-28 02:31:24,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 02:31:24" (1/1) ... [2020-08-28 02:31:24,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 02:31:24" (1/1) ... [2020-08-28 02:31:24,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 02:31:24" (1/1) ... [2020-08-28 02:31:24,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 02:31:24" (1/1) ... [2020-08-28 02:31:24,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 02:31:24" (1/1) ... [2020-08-28 02:31:24,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 02:31:24" (1/1) ... [2020-08-28 02:31:24,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 02:31:24" (1/1) ... [2020-08-28 02:31:24,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-28 02:31:24,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-28 02:31:24,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-28 02:31:24,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-28 02:31:24,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 02:31:24" (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 02:31:24,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-28 02:31:24,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-28 02:31:24,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-08-28 02:31:24,952 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-28 02:31:24,952 INFO L138 BoogieDeclarations]: Found implementation of procedure l_malloc [2020-08-28 02:31:24,952 INFO L138 BoogieDeclarations]: Found implementation of procedure l_free [2020-08-28 02:31:24,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-28 02:31:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-08-28 02:31:24,953 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-08-28 02:31:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-08-28 02:31:24,954 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-08-28 02:31:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-08-28 02:31:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-08-28 02:31:24,955 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-08-28 02:31:24,956 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-08-28 02:31:24,957 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-08-28 02:31:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-08-28 02:31:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-08-28 02:31:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-08-28 02:31:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-08-28 02:31:24,958 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-08-28 02:31:24,959 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-08-28 02:31:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-08-28 02:31:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-08-28 02:31:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-08-28 02:31:24,961 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-08-28 02:31:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-08-28 02:31:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-08-28 02:31:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-08-28 02:31:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-08-28 02:31:24,962 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-08-28 02:31:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-08-28 02:31:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-08-28 02:31:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-08-28 02:31:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-08-28 02:31:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-08-28 02:31:24,963 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-08-28 02:31:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-08-28 02:31:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-08-28 02:31:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-08-28 02:31:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-08-28 02:31:24,964 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-08-28 02:31:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-08-28 02:31:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-08-28 02:31:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-08-28 02:31:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-28 02:31:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-08-28 02:31:24,965 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-08-28 02:31:24,966 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-08-28 02:31:24,966 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-08-28 02:31:24,966 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-08-28 02:31:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-08-28 02:31:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-08-28 02:31:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-08-28 02:31:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-08-28 02:31:24,967 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-08-28 02:31:24,968 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-08-28 02:31:24,968 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-08-28 02:31:24,968 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-08-28 02:31:24,969 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-08-28 02:31:24,969 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-08-28 02:31:24,969 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-08-28 02:31:24,969 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-08-28 02:31:24,969 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-08-28 02:31:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-08-28 02:31:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-08-28 02:31:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-08-28 02:31:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-08-28 02:31:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-08-28 02:31:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-08-28 02:31:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-08-28 02:31:24,972 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-08-28 02:31:24,972 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-08-28 02:31:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-08-28 02:31:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-08-28 02:31:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-08-28 02:31:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-08-28 02:31:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-08-28 02:31:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-08-28 02:31:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-08-28 02:31:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-28 02:31:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-08-28 02:31:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-08-28 02:31:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-08-28 02:31:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-08-28 02:31:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-08-28 02:31:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-08-28 02:31:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-08-28 02:31:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-08-28 02:31:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-08-28 02:31:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-08-28 02:31:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-08-28 02:31:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-08-28 02:31:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-08-28 02:31:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-08-28 02:31:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-08-28 02:31:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-08-28 02:31:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-08-28 02:31:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-08-28 02:31:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-08-28 02:31:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-08-28 02:31:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-08-28 02:31:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-08-28 02:31:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-08-28 02:31:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-08-28 02:31:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-08-28 02:31:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-08-28 02:31:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-08-28 02:31:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-28 02:31:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-28 02:31:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-28 02:31:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-28 02:31:24,983 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-28 02:31:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-28 02:31:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-28 02:31:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-28 02:31:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-28 02:31:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-28 02:31:24,985 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-28 02:31:24,985 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-28 02:31:24,985 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-28 02:31:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-28 02:31:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-28 02:31:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-28 02:31:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-28 02:31:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-28 02:31:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-28 02:31:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-28 02:31:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-28 02:31:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-28 02:31:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-28 02:31:24,993 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-28 02:31:24,993 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-28 02:31:24,993 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-28 02:31:24,993 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-28 02:31:24,993 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-28 02:31:24,994 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-28 02:31:24,994 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-28 02:31:24,995 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-28 02:31:24,996 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-28 02:31:24,997 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-28 02:31:24,997 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-28 02:31:24,997 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-28 02:31:25,005 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-28 02:31:25,005 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-28 02:31:25,005 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-28 02:31:25,005 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-28 02:31:25,005 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-28 02:31:25,006 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-28 02:31:25,006 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-28 02:31:25,006 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-28 02:31:25,006 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-28 02:31:25,006 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-28 02:31:25,007 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-28 02:31:25,007 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-28 02:31:25,007 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-28 02:31:25,007 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-28 02:31:25,007 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-28 02:31:25,007 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-28 02:31:25,008 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-28 02:31:25,008 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-28 02:31:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-28 02:31:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-28 02:31:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-28 02:31:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-28 02:31:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-28 02:31:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-28 02:31:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-28 02:31:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-28 02:31:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-28 02:31:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-28 02:31:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-28 02:31:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2020-08-28 02:31:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-28 02:31:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-28 02:31:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-28 02:31:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-28 02:31:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-28 02:31:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-28 02:31:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-28 02:31:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-28 02:31:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-28 02:31:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-28 02:31:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-28 02:31:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-28 02:31:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-28 02:31:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-28 02:31:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-28 02:31:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-28 02:31:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-28 02:31:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-28 02:31:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-28 02:31:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-28 02:31:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-28 02:31:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-28 02:31:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-28 02:31:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-28 02:31:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-28 02:31:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-28 02:31:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-28 02:31:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-28 02:31:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-28 02:31:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-28 02:31:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-28 02:31:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-28 02:31:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-28 02:31:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-28 02:31:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2020-08-28 02:31:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-28 02:31:25,017 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-08-28 02:31:25,017 INFO L130 BoogieDeclarations]: Found specification of procedure l_malloc [2020-08-28 02:31:25,017 INFO L130 BoogieDeclarations]: Found specification of procedure l_free [2020-08-28 02:31:25,017 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-28 02:31:25,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-28 02:31:25,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-28 02:31:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-28 02:31:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-28 02:31:25,626 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-28 02:31:25,626 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-28 02:31:25,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 02:31:25 BoogieIcfgContainer [2020-08-28 02:31:25,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-28 02:31:25,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-28 02:31:25,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-28 02:31:25,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-28 02:31:25,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 02:31:23" (1/3) ... [2020-08-28 02:31:25,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154652a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 02:31:25, skipping insertion in model container [2020-08-28 02:31:25,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 02:31:24" (2/3) ... [2020-08-28 02:31:25,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154652a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 02:31:25, skipping insertion in model container [2020-08-28 02:31:25,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 02:31:25" (3/3) ... [2020-08-28 02:31:25,641 INFO L109 eAbstractionObserver]: Analyzing ICFG alt_test.i [2020-08-28 02:31:25,663 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-28 02:31:25,697 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-28 02:31:25,726 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-28 02:31:25,753 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-28 02:31:25,753 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-28 02:31:25,753 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-28 02:31:25,753 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-28 02:31:25,754 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-28 02:31:25,754 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-28 02:31:25,754 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-28 02:31:25,754 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-28 02:31:25,776 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-08-28 02:31:25,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-28 02:31:25,784 INFO L414 BasicCegarLoop]: Found error trace [2020-08-28 02:31:25,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-28 02:31:25,786 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-28 02:31:25,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-28 02:31:25,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1074821315, now seen corresponding path program 1 times [2020-08-28 02:31:25,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-28 02:31:25,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539275557] [2020-08-28 02:31:25,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-28 02:31:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-28 02:31:25,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-28 02:31:25,970 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-08-28 02:31:25,977 INFO L168 Benchmark]: Toolchain (without parser) took 2115.61 ms. Allocated memory was 140.0 MB in the beginning and 234.9 MB in the end (delta: 94.9 MB). Free memory was 100.5 MB in the beginning and 188.9 MB in the end (delta: -88.4 MB). Peak memory consumption was 6.5 MB. Max. memory is 7.1 GB. [2020-08-28 02:31:25,978 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-28 02:31:25,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 882.20 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 100.3 MB in the beginning and 146.9 MB in the end (delta: -46.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-08-28 02:31:25,980 INFO L168 Benchmark]: Boogie Preprocessor took 120.91 ms. Allocated memory is still 200.3 MB. Free memory was 146.9 MB in the beginning and 143.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-08-28 02:31:25,982 INFO L168 Benchmark]: RCFGBuilder took 766.79 ms. Allocated memory was 200.3 MB in the beginning and 234.9 MB in the end (delta: 34.6 MB). Free memory was 143.6 MB in the beginning and 201.8 MB in the end (delta: -58.2 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. [2020-08-28 02:31:25,983 INFO L168 Benchmark]: TraceAbstraction took 340.83 ms. Allocated memory is still 234.9 MB. Free memory was 201.8 MB in the beginning and 188.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-08-28 02:31:25,988 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 882.20 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 100.3 MB in the beginning and 146.9 MB in the end (delta: -46.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.91 ms. Allocated memory is still 200.3 MB. Free memory was 146.9 MB in the beginning and 143.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 766.79 ms. Allocated memory was 200.3 MB in the beginning and 234.9 MB in the end (delta: 34.6 MB). Free memory was 143.6 MB in the beginning and 201.8 MB in the end (delta: -58.2 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 340.83 ms. Allocated memory is still 234.9 MB. Free memory was 201.8 MB in the beginning and 188.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 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...