/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=HIGHLEXORDER --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 00:56:12,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-28 00:56:12,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-28 00:56:12,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-28 00:56:12,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-28 00:56:12,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-28 00:56:12,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-28 00:56:12,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-28 00:56:12,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-28 00:56:12,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-28 00:56:12,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-28 00:56:12,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-28 00:56:12,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-28 00:56:12,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-28 00:56:12,534 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-28 00:56:12,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-28 00:56:12,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-28 00:56:12,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-28 00:56:12,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-28 00:56:12,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-28 00:56:12,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-28 00:56:12,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-28 00:56:12,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-28 00:56:12,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-28 00:56:12,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-28 00:56:12,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-28 00:56:12,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-28 00:56:12,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-28 00:56:12,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-28 00:56:12,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-28 00:56:12,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-28 00:56:12,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-28 00:56:12,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-28 00:56:12,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-28 00:56:12,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-28 00:56:12,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-28 00:56:12,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-28 00:56:12,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-28 00:56:12,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-28 00:56:12,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-28 00:56:12,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-28 00:56:12,565 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 00:56:12,591 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-28 00:56:12,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-28 00:56:12,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-28 00:56:12,594 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-28 00:56:12,594 INFO L138 SettingsManager]: * Use SBE=true [2020-08-28 00:56:12,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-28 00:56:12,594 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-28 00:56:12,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-28 00:56:12,595 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-28 00:56:12,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-28 00:56:12,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-28 00:56:12,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-28 00:56:12,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-28 00:56:12,596 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-28 00:56:12,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-28 00:56:12,596 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-28 00:56:12,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-28 00:56:12,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-28 00:56:12,597 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-28 00:56:12,597 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-28 00:56:12,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-28 00:56:12,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-28 00:56:12,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-28 00:56:12,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-28 00:56:12,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-28 00:56:12,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-28 00:56:12,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-28 00:56:12,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-28 00:56:12,599 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-28 00:56:12,599 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=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-08-28 00:56:13,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-28 00:56:13,099 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-28 00:56:13,104 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-28 00:56:13,107 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-28 00:56:13,109 INFO L275 PluginConnector]: CDTParser initialized [2020-08-28 00:56:13,110 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/alt_test.i [2020-08-28 00:56:13,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6eea4ba31/bf54dcf6190240e292ccee08e0fa3eca/FLAG66e1bd816 [2020-08-28 00:56:13,881 INFO L306 CDTParser]: Found 1 translation units. [2020-08-28 00:56:13,882 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/alt_test.i [2020-08-28 00:56:13,898 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6eea4ba31/bf54dcf6190240e292ccee08e0fa3eca/FLAG66e1bd816 [2020-08-28 00:56:14,092 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6eea4ba31/bf54dcf6190240e292ccee08e0fa3eca [2020-08-28 00:56:14,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-28 00:56:14,107 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-28 00:56:14,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-28 00:56:14,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-28 00:56:14,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-28 00:56:14,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 12:56:14" (1/1) ... [2020-08-28 00:56:14,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b861da5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 12:56:14, skipping insertion in model container [2020-08-28 00:56:14,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 12:56:14" (1/1) ... [2020-08-28 00:56:14,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-28 00:56:14,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-28 00:56:14,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 00:56:14,738 INFO L203 MainTranslator]: Completed pre-run [2020-08-28 00:56:14,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 00:56:14,932 INFO L208 MainTranslator]: Completed translation [2020-08-28 00:56:14,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 12:56:14 WrapperNode [2020-08-28 00:56:14,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-28 00:56:14,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-28 00:56:14,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-28 00:56:14,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-28 00:56:14,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 12:56:14" (1/1) ... [2020-08-28 00:56:14,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 12:56:14" (1/1) ... [2020-08-28 00:56:14,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 12:56:14" (1/1) ... [2020-08-28 00:56:14,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 12:56:14" (1/1) ... [2020-08-28 00:56:14,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 12:56:14" (1/1) ... [2020-08-28 00:56:15,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 12:56:14" (1/1) ... [2020-08-28 00:56:15,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 12:56:14" (1/1) ... [2020-08-28 00:56:15,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-28 00:56:15,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-28 00:56:15,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-28 00:56:15,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-28 00:56:15,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 12:56:14" (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 00:56:15,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-28 00:56:15,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-28 00:56:15,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-08-28 00:56:15,117 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-28 00:56:15,117 INFO L138 BoogieDeclarations]: Found implementation of procedure l_malloc [2020-08-28 00:56:15,117 INFO L138 BoogieDeclarations]: Found implementation of procedure l_free [2020-08-28 00:56:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-28 00:56:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow [2020-08-28 00:56:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow [2020-08-28 00:56:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow [2020-08-28 00:56:15,118 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc [2020-08-28 00:56:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc [2020-08-28 00:56:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof [2020-08-28 00:56:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror [2020-08-28 00:56:15,119 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked [2020-08-28 00:56:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile [2020-08-28 00:56:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile [2020-08-28 00:56:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile [2020-08-28 00:56:15,120 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf [2020-08-28 00:56:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf [2020-08-28 00:56:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn [2020-08-28 00:56:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn [2020-08-28 00:56:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff [2020-08-28 00:56:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos [2020-08-28 00:56:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area [2020-08-28 00:56:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-08-28 00:56:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure rename [2020-08-28 00:56:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure renameat [2020-08-28 00:56:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile [2020-08-28 00:56:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam [2020-08-28 00:56:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r [2020-08-28 00:56:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam [2020-08-28 00:56:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2020-08-28 00:56:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2020-08-28 00:56:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked [2020-08-28 00:56:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-08-28 00:56:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure freopen [2020-08-28 00:56:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen [2020-08-28 00:56:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen [2020-08-28 00:56:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream [2020-08-28 00:56:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2020-08-28 00:56:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf [2020-08-28 00:56:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer [2020-08-28 00:56:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf [2020-08-28 00:56:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2020-08-28 00:56:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-28 00:56:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-08-28 00:56:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf [2020-08-28 00:56:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf [2020-08-28 00:56:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf [2020-08-28 00:56:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-08-28 00:56:15,126 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2020-08-28 00:56:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf [2020-08-28 00:56:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf [2020-08-28 00:56:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf [2020-08-28 00:56:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure scanf [2020-08-28 00:56:15,127 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2020-08-28 00:56:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf [2020-08-28 00:56:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf [2020-08-28 00:56:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf [2020-08-28 00:56:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2020-08-28 00:56:15,128 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2020-08-28 00:56:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure getchar [2020-08-28 00:56:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked [2020-08-28 00:56:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked [2020-08-28 00:56:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked [2020-08-28 00:56:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure fputc [2020-08-28 00:56:15,129 INFO L130 BoogieDeclarations]: Found specification of procedure putc [2020-08-28 00:56:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2020-08-28 00:56:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked [2020-08-28 00:56:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked [2020-08-28 00:56:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked [2020-08-28 00:56:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure getw [2020-08-28 00:56:15,130 INFO L130 BoogieDeclarations]: Found specification of procedure putw [2020-08-28 00:56:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2020-08-28 00:56:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure gets [2020-08-28 00:56:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim [2020-08-28 00:56:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim [2020-08-28 00:56:15,131 INFO L130 BoogieDeclarations]: Found specification of procedure getline [2020-08-28 00:56:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2020-08-28 00:56:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-08-28 00:56:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc [2020-08-28 00:56:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure fread [2020-08-28 00:56:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2020-08-28 00:56:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked [2020-08-28 00:56:15,132 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked [2020-08-28 00:56:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure fseek [2020-08-28 00:56:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure ftell [2020-08-28 00:56:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure rewind [2020-08-28 00:56:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko [2020-08-28 00:56:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure ftello [2020-08-28 00:56:15,133 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos [2020-08-28 00:56:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos [2020-08-28 00:56:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2020-08-28 00:56:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure feof [2020-08-28 00:56:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2020-08-28 00:56:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked [2020-08-28 00:56:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked [2020-08-28 00:56:15,134 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked [2020-08-28 00:56:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure perror [2020-08-28 00:56:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure fileno [2020-08-28 00:56:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked [2020-08-28 00:56:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure popen [2020-08-28 00:56:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure pclose [2020-08-28 00:56:15,135 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid [2020-08-28 00:56:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile [2020-08-28 00:56:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile [2020-08-28 00:56:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile [2020-08-28 00:56:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-28 00:56:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-28 00:56:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-28 00:56:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-28 00:56:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-28 00:56:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-28 00:56:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-28 00:56:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-28 00:56:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-28 00:56:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-28 00:56:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-28 00:56:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-28 00:56:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-28 00:56:15,139 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-28 00:56:15,139 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-28 00:56:15,139 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-28 00:56:15,139 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-28 00:56:15,139 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-28 00:56:15,139 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-28 00:56:15,140 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-28 00:56:15,140 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-28 00:56:15,140 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-28 00:56:15,140 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-28 00:56:15,140 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-28 00:56:15,141 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-28 00:56:15,141 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-28 00:56:15,141 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-28 00:56:15,141 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-28 00:56:15,141 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-28 00:56:15,142 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-28 00:56:15,142 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-28 00:56:15,142 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-28 00:56:15,142 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-28 00:56:15,142 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-28 00:56:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-28 00:56:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-28 00:56:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-28 00:56:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-28 00:56:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-28 00:56:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-28 00:56:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-28 00:56:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-28 00:56:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-28 00:56:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-28 00:56:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-28 00:56:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-28 00:56:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-28 00:56:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-28 00:56:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-28 00:56:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-28 00:56:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-28 00:56:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-28 00:56:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-28 00:56:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-28 00:56:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-08-28 00:56:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-28 00:56:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-28 00:56:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-28 00:56:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-28 00:56:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-28 00:56:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-28 00:56:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-28 00:56:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-28 00:56:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-28 00:56:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2020-08-28 00:56:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-28 00:56:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-28 00:56:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-28 00:56:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-28 00:56:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-28 00:56:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-28 00:56:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-28 00:56:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-28 00:56:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-28 00:56:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-28 00:56:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-28 00:56:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-28 00:56:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-28 00:56:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-28 00:56:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-28 00:56:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-28 00:56:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-28 00:56:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-28 00:56:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-28 00:56:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-28 00:56:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-28 00:56:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-28 00:56:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-28 00:56:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-28 00:56:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-28 00:56:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-28 00:56:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-28 00:56:15,152 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-28 00:56:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-28 00:56:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-28 00:56:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-28 00:56:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-28 00:56:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-28 00:56:15,153 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-28 00:56:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt [2020-08-28 00:56:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-28 00:56:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-08-28 00:56:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure l_malloc [2020-08-28 00:56:15,154 INFO L130 BoogieDeclarations]: Found specification of procedure l_free [2020-08-28 00:56:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-28 00:56:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-28 00:56:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-28 00:56:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-28 00:56:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-28 00:56:15,786 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-28 00:56:15,786 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-28 00:56:15,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 12:56:15 BoogieIcfgContainer [2020-08-28 00:56:15,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-28 00:56:15,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-28 00:56:15,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-28 00:56:15,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-28 00:56:15,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 12:56:14" (1/3) ... [2020-08-28 00:56:15,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b0ea79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 12:56:15, skipping insertion in model container [2020-08-28 00:56:15,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 12:56:14" (2/3) ... [2020-08-28 00:56:15,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b0ea79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 12:56:15, skipping insertion in model container [2020-08-28 00:56:15,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 12:56:15" (3/3) ... [2020-08-28 00:56:15,801 INFO L109 eAbstractionObserver]: Analyzing ICFG alt_test.i [2020-08-28 00:56:15,822 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-28 00:56:15,833 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-28 00:56:15,855 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-28 00:56:15,882 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-28 00:56:15,882 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-28 00:56:15,882 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-28 00:56:15,882 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-28 00:56:15,882 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-28 00:56:15,883 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-28 00:56:15,883 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-28 00:56:15,883 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-28 00:56:15,904 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-08-28 00:56:15,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-28 00:56:15,911 INFO L414 BasicCegarLoop]: Found error trace [2020-08-28 00:56:15,913 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 00:56:15,913 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-28 00:56:15,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-28 00:56:15,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1074821315, now seen corresponding path program 1 times [2020-08-28 00:56:15,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-28 00:56:15,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182438596] [2020-08-28 00:56:15,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-28 00:56:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-28 00:56:16,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-28 00:56:16,102 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-08-28 00:56:16,110 INFO L168 Benchmark]: Toolchain (without parser) took 2001.20 ms. Allocated memory was 137.4 MB in the beginning and 230.2 MB in the end (delta: 92.8 MB). Free memory was 99.1 MB in the beginning and 194.3 MB in the end (delta: -95.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-28 00:56:16,111 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-28 00:56:16,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 825.31 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 98.9 MB in the beginning and 150.9 MB in the end (delta: -52.0 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2020-08-28 00:56:16,113 INFO L168 Benchmark]: Boogie Preprocessor took 93.78 ms. Allocated memory is still 201.3 MB. Free memory was 150.9 MB in the beginning and 148.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-08-28 00:56:16,114 INFO L168 Benchmark]: RCFGBuilder took 762.77 ms. Allocated memory is still 201.3 MB. Free memory was 148.1 MB in the beginning and 90.0 MB in the end (delta: 58.0 MB). Peak memory consumption was 58.0 MB. Max. memory is 7.1 GB. [2020-08-28 00:56:16,115 INFO L168 Benchmark]: TraceAbstraction took 313.65 ms. Allocated memory was 201.3 MB in the beginning and 230.2 MB in the end (delta: 28.8 MB). Free memory was 89.3 MB in the beginning and 194.3 MB in the end (delta: -104.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-28 00:56:16,119 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 825.31 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 98.9 MB in the beginning and 150.9 MB in the end (delta: -52.0 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.78 ms. Allocated memory is still 201.3 MB. Free memory was 150.9 MB in the beginning and 148.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 762.77 ms. Allocated memory is still 201.3 MB. Free memory was 148.1 MB in the beginning and 90.0 MB in the end (delta: 58.0 MB). Peak memory consumption was 58.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 313.65 ms. Allocated memory was 201.3 MB in the beginning and 230.2 MB in the end (delta: 28.8 MB). Free memory was 89.3 MB in the beginning and 194.3 MB in the end (delta: -104.9 MB). There was no memory consumed. 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...