/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-properties/list-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-28 01:20:08,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-28 01:20:08,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-28 01:20:08,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-28 01:20:08,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-28 01:20:08,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-28 01:20:08,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-28 01:20:08,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-28 01:20:08,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-28 01:20:08,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-28 01:20:08,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-28 01:20:08,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-28 01:20:08,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-28 01:20:08,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-28 01:20:08,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-28 01:20:08,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-28 01:20:08,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-28 01:20:08,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-28 01:20:08,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-28 01:20:08,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-28 01:20:08,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-28 01:20:08,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-28 01:20:08,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-28 01:20:08,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-28 01:20:08,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-28 01:20:08,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-28 01:20:08,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-28 01:20:08,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-28 01:20:08,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-28 01:20:08,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-28 01:20:08,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-28 01:20:08,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-28 01:20:08,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-28 01:20:08,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-28 01:20:08,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-28 01:20:08,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-28 01:20:08,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-28 01:20:08,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-28 01:20:08,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-28 01:20:08,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-28 01:20:08,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-28 01:20:08,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-28 01:20:08,380 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-28 01:20:08,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-28 01:20:08,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-28 01:20:08,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-28 01:20:08,382 INFO L138 SettingsManager]: * Use SBE=true [2020-08-28 01:20:08,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-28 01:20:08,382 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-28 01:20:08,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-28 01:20:08,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-28 01:20:08,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-28 01:20:08,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-28 01:20:08,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-28 01:20:08,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-28 01:20:08,384 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-28 01:20:08,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-28 01:20:08,384 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-28 01:20:08,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-28 01:20:08,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-28 01:20:08,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-28 01:20:08,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-28 01:20:08,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-28 01:20:08,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-28 01:20:08,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-28 01:20:08,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-28 01:20:08,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-28 01:20:08,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-28 01:20:08,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-28 01:20:08,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-28 01:20:08,387 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-28 01:20:08,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-08-28 01:20:08,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-28 01:20:08,895 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-28 01:20:08,899 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-28 01:20:08,901 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-28 01:20:08,901 INFO L275 PluginConnector]: CDTParser initialized [2020-08-28 01:20:08,902 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list-2.i [2020-08-28 01:20:08,975 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8e68cfb4/f2459341d8ac404eab82149d3c7af87d/FLAG0942674e4 [2020-08-28 01:20:09,590 INFO L306 CDTParser]: Found 1 translation units. [2020-08-28 01:20:09,591 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-properties/list-2.i [2020-08-28 01:20:09,606 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8e68cfb4/f2459341d8ac404eab82149d3c7af87d/FLAG0942674e4 [2020-08-28 01:20:09,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e8e68cfb4/f2459341d8ac404eab82149d3c7af87d [2020-08-28 01:20:09,875 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-28 01:20:09,877 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-28 01:20:09,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-28 01:20:09,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-28 01:20:09,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-28 01:20:09,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 01:20:09" (1/1) ... [2020-08-28 01:20:09,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6417f8ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:09, skipping insertion in model container [2020-08-28 01:20:09,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 01:20:09" (1/1) ... [2020-08-28 01:20:09,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-28 01:20:09,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-28 01:20:10,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 01:20:10,506 INFO L203 MainTranslator]: Completed pre-run [2020-08-28 01:20:10,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 01:20:10,639 INFO L208 MainTranslator]: Completed translation [2020-08-28 01:20:10,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:10 WrapperNode [2020-08-28 01:20:10,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-28 01:20:10,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-28 01:20:10,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-28 01:20:10,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-28 01:20:10,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:10" (1/1) ... [2020-08-28 01:20:10,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:10" (1/1) ... [2020-08-28 01:20:10,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:10" (1/1) ... [2020-08-28 01:20:10,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:10" (1/1) ... [2020-08-28 01:20:10,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:10" (1/1) ... [2020-08-28 01:20:10,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:10" (1/1) ... [2020-08-28 01:20:10,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:10" (1/1) ... [2020-08-28 01:20:10,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-28 01:20:10,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-28 01:20:10,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-28 01:20:10,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-28 01:20:10,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-28 01:20:10,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-28 01:20:10,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-28 01:20:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-08-28 01:20:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-08-28 01:20:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-08-28 01:20:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-08-28 01:20:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-08-28 01:20:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-08-28 01:20:10,825 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-28 01:20:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-28 01:20:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-28 01:20:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-28 01:20:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-28 01:20:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-28 01:20:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-28 01:20:10,827 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-28 01:20:10,827 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-28 01:20:10,827 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-28 01:20:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-28 01:20:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-28 01:20:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-28 01:20:10,830 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-28 01:20:10,831 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-28 01:20:10,831 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-28 01:20:10,831 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-28 01:20:10,831 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-28 01:20:10,831 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-28 01:20:10,832 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-08-28 01:20:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-08-28 01:20:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-08-28 01:20:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-08-28 01:20:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-08-28 01:20:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-28 01:20:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-28 01:20:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-28 01:20:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-28 01:20:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-28 01:20:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-28 01:20:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-28 01:20:10,837 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-28 01:20:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-28 01:20:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-28 01:20:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-28 01:20:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-28 01:20:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-28 01:20:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-28 01:20:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-28 01:20:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-28 01:20:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-28 01:20:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-28 01:20:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-28 01:20:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-28 01:20:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-28 01:20:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-28 01:20:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-28 01:20:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-28 01:20:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-28 01:20:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-28 01:20:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-28 01:20:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-28 01:20:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-28 01:20:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-28 01:20:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-28 01:20:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-28 01:20:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-28 01:20:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-28 01:20:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-28 01:20:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-28 01:20:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-28 01:20:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-28 01:20:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-28 01:20:10,850 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-28 01:20:10,850 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-28 01:20:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-08-28 01:20:10,852 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-28 01:20:10,852 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-28 01:20:10,853 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-08-28 01:20:10,853 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-28 01:20:10,853 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-28 01:20:10,853 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-08-28 01:20:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-28 01:20:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-28 01:20:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-28 01:20:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-28 01:20:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-28 01:20:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-28 01:20:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-28 01:20:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-28 01:20:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-28 01:20:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-28 01:20:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-28 01:20:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-28 01:20:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-28 01:20:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-28 01:20:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-28 01:20:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-28 01:20:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-28 01:20:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-28 01:20:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-28 01:20:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-28 01:20:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-28 01:20:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-28 01:20:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-28 01:20:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-28 01:20:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-28 01:20:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-28 01:20:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-28 01:20:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-28 01:20:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-28 01:20:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-28 01:20:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-28 01:20:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-28 01:20:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-28 01:20:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-28 01:20:10,860 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-28 01:20:10,860 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-28 01:20:10,860 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-28 01:20:10,861 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-28 01:20:10,861 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-08-28 01:20:10,861 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-28 01:20:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-28 01:20:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-28 01:20:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-28 01:20:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-28 01:20:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-28 01:20:10,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-28 01:20:10,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-28 01:20:10,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-28 01:20:11,231 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-08-28 01:20:11,406 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-28 01:20:11,406 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-28 01:20:11,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 01:20:11 BoogieIcfgContainer [2020-08-28 01:20:11,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-28 01:20:11,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-28 01:20:11,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-28 01:20:11,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-28 01:20:11,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 01:20:09" (1/3) ... [2020-08-28 01:20:11,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd693b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 01:20:11, skipping insertion in model container [2020-08-28 01:20:11,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 01:20:10" (2/3) ... [2020-08-28 01:20:11,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd693b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 01:20:11, skipping insertion in model container [2020-08-28 01:20:11,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 01:20:11" (3/3) ... [2020-08-28 01:20:11,421 INFO L109 eAbstractionObserver]: Analyzing ICFG list-2.i [2020-08-28 01:20:11,430 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-28 01:20:11,441 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-28 01:20:11,463 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-28 01:20:11,493 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-28 01:20:11,493 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-28 01:20:11,493 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-28 01:20:11,493 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-28 01:20:11,493 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-28 01:20:11,493 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-28 01:20:11,494 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-28 01:20:11,494 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-28 01:20:11,517 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-08-28 01:20:11,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-28 01:20:11,525 INFO L414 BasicCegarLoop]: Found error trace [2020-08-28 01:20:11,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-28 01:20:11,527 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-28 01:20:11,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-28 01:20:11,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1613857984, now seen corresponding path program 1 times [2020-08-28 01:20:11,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-28 01:20:11,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1355439329] [2020-08-28 01:20:11,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-28 01:20:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-28 01:20:11,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-28 01:20:11,690 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Proof production must be enabled (you can do this via setOption). at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:211) at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:170) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-08-28 01:20:11,699 INFO L168 Benchmark]: Toolchain (without parser) took 1819.77 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 98.7 MB in the beginning and 107.8 MB in the end (delta: -9.1 MB). Peak memory consumption was 55.4 MB. Max. memory is 7.1 GB. [2020-08-28 01:20:11,701 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 117.6 MB in the beginning and 117.2 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-08-28 01:20:11,703 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.18 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 98.3 MB in the beginning and 168.1 MB in the end (delta: -69.8 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-08-28 01:20:11,705 INFO L168 Benchmark]: Boogie Preprocessor took 90.30 ms. Allocated memory is still 201.9 MB. Free memory was 168.1 MB in the beginning and 165.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-08-28 01:20:11,706 INFO L168 Benchmark]: RCFGBuilder took 679.70 ms. Allocated memory is still 201.9 MB. Free memory was 165.1 MB in the beginning and 119.9 MB in the end (delta: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 7.1 GB. [2020-08-28 01:20:11,708 INFO L168 Benchmark]: TraceAbstraction took 281.81 ms. Allocated memory is still 201.9 MB. Free memory was 119.9 MB in the beginning and 107.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2020-08-28 01:20:11,721 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 117.6 MB in the beginning and 117.2 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 762.18 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 98.3 MB in the beginning and 168.1 MB in the end (delta: -69.8 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.30 ms. Allocated memory is still 201.9 MB. Free memory was 168.1 MB in the beginning and 165.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 679.70 ms. Allocated memory is still 201.9 MB. Free memory was 165.1 MB in the beginning and 119.9 MB in the end (delta: 45.2 MB). Peak memory consumption was 45.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 281.81 ms. Allocated memory is still 201.9 MB. Free memory was 119.9 MB in the beginning and 107.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 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...