/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/list-ext-properties/simple-ext.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:59:56,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:59:56,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:59:56,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:59:56,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:59:56,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:59:56,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:59:56,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:59:56,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:59:56,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:59:56,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:59:56,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:59:56,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:59:56,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:59:56,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:59:56,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:59:56,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:59:56,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:59:56,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:59:56,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:59:56,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:59:56,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:59:56,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:59:56,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:59:56,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:59:56,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:59:56,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:59:56,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:59:56,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:59:56,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:59:56,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:59:56,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:59:56,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:59:56,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:59:56,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:59:56,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:59:56,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:59:56,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:59:56,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:59:56,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:59:56,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:59:56,217 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 [2020-10-27 19:59:56,268 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:59:56,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:59:56,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:59:56,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:59:56,272 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:59:56,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:59:56,273 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:59:56,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:59:56,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:59:56,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:59:56,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:59:56,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:59:56,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:59:56,277 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:59:56,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:59:56,277 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:59:56,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:59:56,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:59:56,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:59:56,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:59:56,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:59:56,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:59:56,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:59:56,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:59:56,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:59:56,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:59:56,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:59:56,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:59:56,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:59:56,281 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:59:56,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:59:56,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:59:56,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:59:56,772 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:59:56,773 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:59:56,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/simple-ext.i [2020-10-27 19:59:56,857 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d6916ef2/bb329556a50d4e3099fa2383f7c63b82/FLAGb610cc3f7 [2020-10-27 19:59:57,643 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:59:57,645 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-ext-properties/simple-ext.i [2020-10-27 19:59:57,674 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d6916ef2/bb329556a50d4e3099fa2383f7c63b82/FLAGb610cc3f7 [2020-10-27 19:59:57,962 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d6916ef2/bb329556a50d4e3099fa2383f7c63b82 [2020-10-27 19:59:57,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:59:57,976 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:59:57,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:59:57,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:59:57,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:59:57,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:59:57" (1/1) ... [2020-10-27 19:59:57,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62a770c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:59:57, skipping insertion in model container [2020-10-27 19:59:57,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:59:57" (1/1) ... [2020-10-27 19:59:58,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:59:58,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:59:58,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:59:58,490 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:59:58,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:59:58,652 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:59:58,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:59:58 WrapperNode [2020-10-27 19:59:58,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:59:58,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:59:58,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:59:58,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:59:58,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:59:58" (1/1) ... [2020-10-27 19:59:58,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:59:58" (1/1) ... [2020-10-27 19:59:58,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:59:58" (1/1) ... [2020-10-27 19:59:58,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:59:58" (1/1) ... [2020-10-27 19:59:58,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:59:58" (1/1) ... [2020-10-27 19:59:58,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:59:58" (1/1) ... [2020-10-27 19:59:58,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:59:58" (1/1) ... [2020-10-27 19:59:58,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:59:58,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:59:58,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:59:58,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:59:58,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:59:58" (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 [2020-10-27 19:59:58,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:59:58,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:59:58,835 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:59:58,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-27 19:59:58,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-27 19:59:58,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-27 19:59:58,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-27 19:59:58,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-27 19:59:58,836 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-10-27 19:59:58,836 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:59:58,837 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:59:58,837 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:59:58,837 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 19:59:58,837 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 19:59:58,837 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:59:58,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:59:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 19:59:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-27 19:59:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-27 19:59:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-27 19:59:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-27 19:59:58,838 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-27 19:59:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-27 19:59:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-27 19:59:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-27 19:59:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-27 19:59:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-27 19:59:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-27 19:59:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-27 19:59:58,839 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-27 19:59:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-27 19:59:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-27 19:59:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-27 19:59:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-27 19:59:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-27 19:59:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-27 19:59:58,840 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-27 19:59:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-27 19:59:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-27 19:59:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-27 19:59:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-27 19:59:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-27 19:59:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-27 19:59:58,841 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-27 19:59:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-27 19:59:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-27 19:59:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-27 19:59:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-27 19:59:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-27 19:59:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-27 19:59:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-27 19:59:58,842 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-27 19:59:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-27 19:59:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-27 19:59:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-27 19:59:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-27 19:59:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-27 19:59:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-27 19:59:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-27 19:59:58,844 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-27 19:59:58,844 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-27 19:59:58,844 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-27 19:59:58,844 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-27 19:59:58,844 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-27 19:59:58,844 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-27 19:59:58,845 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-27 19:59:58,845 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-27 19:59:58,845 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-27 19:59:58,845 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-27 19:59:58,845 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-27 19:59:58,845 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-27 19:59:58,845 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-27 19:59:58,846 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 19:59:58,846 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 19:59:58,846 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-27 19:59:58,846 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 19:59:58,846 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-27 19:59:58,846 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-27 19:59:58,847 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-27 19:59:58,847 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-27 19:59:58,847 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-27 19:59:58,847 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-27 19:59:58,847 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-27 19:59:58,847 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 19:59:58,847 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-27 19:59:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-27 19:59:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-27 19:59:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-27 19:59:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-27 19:59:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-27 19:59:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-27 19:59:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-27 19:59:58,849 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-27 19:59:58,849 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-27 19:59:58,849 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-27 19:59:58,849 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-27 19:59:58,849 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-27 19:59:58,849 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-27 19:59:58,849 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-27 19:59:58,850 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-27 19:59:58,850 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-27 19:59:58,850 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-27 19:59:58,850 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-27 19:59:58,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-27 19:59:58,850 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-27 19:59:58,850 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-27 19:59:58,850 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-27 19:59:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-27 19:59:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-27 19:59:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-27 19:59:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-27 19:59:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-27 19:59:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-27 19:59:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-27 19:59:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-27 19:59:58,852 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-27 19:59:58,852 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-27 19:59:58,852 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-27 19:59:58,852 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-27 19:59:58,852 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-27 19:59:58,852 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-27 19:59:58,852 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-27 19:59:58,853 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-27 19:59:58,853 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-10-27 19:59:58,853 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:59:58,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 19:59:58,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:59:58,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 19:59:58,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 19:59:58,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:59:58,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:59:58,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:59:58,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:59:58,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:59:59,181 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-10-27 19:59:59,357 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:59:59,357 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-27 19:59:59,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:59:59 BoogieIcfgContainer [2020-10-27 19:59:59,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:59:59,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:59:59,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:59:59,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:59:59,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:59:57" (1/3) ... [2020-10-27 19:59:59,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349ddd96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:59:59, skipping insertion in model container [2020-10-27 19:59:59,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:59:58" (2/3) ... [2020-10-27 19:59:59,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349ddd96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:59:59, skipping insertion in model container [2020-10-27 19:59:59,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:59:59" (3/3) ... [2020-10-27 19:59:59,368 INFO L111 eAbstractionObserver]: Analyzing ICFG simple-ext.i [2020-10-27 19:59:59,380 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:59:59,385 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:59:59,415 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:59:59,444 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:59:59,445 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:59:59,445 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:59:59,445 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:59:59,445 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:59:59,445 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:59:59,445 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:59:59,446 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:59:59,463 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-10-27 19:59:59,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 19:59:59,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:59:59,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:59:59,471 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:59:59,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:59:59,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1830377187, now seen corresponding path program 1 times [2020-10-27 19:59:59,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:59:59,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1109045075] [2020-10-27 19:59:59,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:59:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:59:59,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:59:59,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:59:59,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 19:59:59,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:59:59,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-27 19:59:59,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:59:59,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:59:59,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-27 19:59:59,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:59:59,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 19:59:59,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:59:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:59:59,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:59:59,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:59:59,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:59:59,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:59:59,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 19:59:59,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:59:59,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:59:59,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:59:59,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:59:59,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:59:59,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:59:59,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1109045075] [2020-10-27 19:59:59,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:59:59,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 19:59:59,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065654512] [2020-10-27 19:59:59,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 19:59:59,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:59:59,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 19:59:59,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 20:00:00,001 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 3 states. [2020-10-27 20:00:00,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:00:00,150 INFO L93 Difference]: Finished difference Result 50 states and 66 transitions. [2020-10-27 20:00:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 20:00:00,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-10-27 20:00:00,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:00:00,161 INFO L225 Difference]: With dead ends: 50 [2020-10-27 20:00:00,162 INFO L226 Difference]: Without dead ends: 21 [2020-10-27 20:00:00,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 20:00:00,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-27 20:00:00,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-27 20:00:00,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-27 20:00:00,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2020-10-27 20:00:00,215 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 15 [2020-10-27 20:00:00,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:00:00,216 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2020-10-27 20:00:00,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 20:00:00,216 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2020-10-27 20:00:00,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-27 20:00:00,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:00:00,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:00:00,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 20:00:00,219 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:00:00,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:00:00,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1433309902, now seen corresponding path program 1 times [2020-10-27 20:00:00,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:00:00,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [172222969] [2020-10-27 20:00:00,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:00:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 20:00:00,308 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 20:00:00,308 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 20:00:00,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 20:00:00,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 08:00:00 BoogieIcfgContainer [2020-10-27 20:00:00,332 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 20:00:00,335 INFO L168 Benchmark]: Toolchain (without parser) took 2364.73 ms. Allocated memory is still 158.3 MB. Free memory was 132.9 MB in the beginning and 100.4 MB in the end (delta: 32.5 MB). Peak memory consumption was 33.4 MB. Max. memory is 8.0 GB. [2020-10-27 20:00:00,335 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory is still 100.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 20:00:00,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.24 ms. Allocated memory is still 158.3 MB. Free memory was 132.3 MB in the beginning and 142.0 MB in the end (delta: -9.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 8.0 GB. [2020-10-27 20:00:00,337 INFO L168 Benchmark]: Boogie Preprocessor took 69.43 ms. Allocated memory is still 158.3 MB. Free memory was 142.0 MB in the beginning and 139.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 20:00:00,338 INFO L168 Benchmark]: RCFGBuilder took 621.93 ms. Allocated memory is still 158.3 MB. Free memory was 139.6 MB in the beginning and 98.7 MB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. [2020-10-27 20:00:00,339 INFO L168 Benchmark]: TraceAbstraction took 971.29 ms. Allocated memory is still 158.3 MB. Free memory was 98.1 MB in the beginning and 100.4 MB in the end (delta: -2.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 20:00:00,342 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory is still 100.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 687.24 ms. Allocated memory is still 158.3 MB. Free memory was 132.3 MB in the beginning and 142.0 MB in the end (delta: -9.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 69.43 ms. Allocated memory is still 158.3 MB. Free memory was 142.0 MB in the beginning and 139.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 621.93 ms. Allocated memory is still 158.3 MB. Free memory was 139.6 MB in the beginning and 98.7 MB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 971.29 ms. Allocated memory is still 158.3 MB. Free memory was 98.1 MB in the beginning and 100.4 MB in the end (delta: -2.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L532] List a = (List) malloc(sizeof(struct node)); [L533] COND FALSE !(a == 0) [L534] List t; [L535] List p = a; [L536] int i = 0; [L537] i < 30 && __VERIFIER_nondet_int() [L537] i < 30 && __VERIFIER_nondet_int() [L537] COND FALSE !(i < 30 && __VERIFIER_nondet_int()) [L545] p->h = i [L546] p->n = 0 [L547] p = a [L548] i = 0 [L549] COND TRUE p!=0 [L550] EXPR p->h [L550] COND TRUE p->h != 1 [L551] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "simple-ext.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 35 SDtfs, 4 SDslu, 4 SDs, 0 SdLazy, 26 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 532 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...