/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 --rcfgbuilder.size.of.a.code.block SingleStatement --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=LOWLEXORDER --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-simple/dll2n_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:38:27,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:38:27,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:38:27,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:38:27,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:38:27,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:38:27,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:38:27,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:38:27,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:38:27,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:38:27,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:38:27,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:38:27,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:38:27,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:38:27,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:38:27,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:38:27,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:38:27,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:38:27,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:38:27,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:38:27,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:38:27,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:38:27,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:38:27,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:38:27,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:38:27,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:38:27,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:38:27,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:38:27,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:38:27,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:38:27,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:38:27,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:38:27,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:38:27,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:38:27,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:38:27,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:38:27,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:38:27,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:38:27,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:38:27,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:38:27,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:38:27,409 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 [2020-09-24 21:38:27,454 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:38:27,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:38:27,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:38:27,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:38:27,457 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:38:27,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:38:27,458 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:38:27,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:38:27,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:38:27,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:38:27,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:38:27,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:38:27,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:38:27,460 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:38:27,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:38:27,460 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:38:27,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:38:27,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:38:27,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:38:27,461 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:38:27,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:38:27,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:38:27,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:38:27,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:38:27,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:38:27,463 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:38:27,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:38:27,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:38:27,463 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:38:27,463 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.rcfgbuilder: Size of a code block -> SingleStatement 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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:38:27,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:38:27,966 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:38:27,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:38:27,973 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:38:27,974 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:38:27,975 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i [2020-09-24 21:38:28,062 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f58d8237/fb84947814b0441b89f21628b6a4f5ba/FLAG8ff828459 [2020-09-24 21:38:28,700 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:38:28,701 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i [2020-09-24 21:38:28,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f58d8237/fb84947814b0441b89f21628b6a4f5ba/FLAG8ff828459 [2020-09-24 21:38:28,955 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f58d8237/fb84947814b0441b89f21628b6a4f5ba [2020-09-24 21:38:28,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:38:28,977 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:38:28,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:38:28,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:38:28,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:38:28,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:38:28" (1/1) ... [2020-09-24 21:38:28,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e799f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:28, skipping insertion in model container [2020-09-24 21:38:28,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:38:28" (1/1) ... [2020-09-24 21:38:29,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:38:29,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:38:29,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:38:29,579 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:38:29,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:38:29,714 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:38:29,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:29 WrapperNode [2020-09-24 21:38:29,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:38:29,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:38:29,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:38:29,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:38:29,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:29" (1/1) ... [2020-09-24 21:38:29,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:29" (1/1) ... [2020-09-24 21:38:29,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:29" (1/1) ... [2020-09-24 21:38:29,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:29" (1/1) ... [2020-09-24 21:38:29,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:29" (1/1) ... [2020-09-24 21:38:29,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:29" (1/1) ... [2020-09-24 21:38:29,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:29" (1/1) ... [2020-09-24 21:38:29,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:38:29,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:38:29,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:38:29,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:38:29,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:29" (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 [2020-09-24 21:38:29,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:38:29,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:38:29,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-24 21:38:29,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-24 21:38:29,895 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-09-24 21:38:29,895 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-09-24 21:38:29,896 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2020-09-24 21:38:29,896 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2020-09-24 21:38:29,897 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_get_data_at [2020-09-24 21:38:29,898 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_update_at [2020-09-24 21:38:29,898 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:38:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:38:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-24 21:38:29,898 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-24 21:38:29,899 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-24 21:38:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-24 21:38:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-24 21:38:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-24 21:38:29,900 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-24 21:38:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-24 21:38:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-24 21:38:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-24 21:38:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-24 21:38:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-24 21:38:29,901 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-24 21:38:29,902 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-24 21:38:29,902 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-24 21:38:29,902 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-24 21:38:29,902 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-24 21:38:29,902 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-24 21:38:29,902 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-24 21:38:29,903 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-24 21:38:29,903 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-24 21:38:29,903 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-24 21:38:29,903 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-24 21:38:29,903 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-24 21:38:29,903 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-24 21:38:29,904 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-24 21:38:29,904 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-24 21:38:29,904 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-24 21:38:29,904 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-24 21:38:29,904 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-24 21:38:29,904 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-24 21:38:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-24 21:38:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-24 21:38:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-24 21:38:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-24 21:38:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-24 21:38:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-24 21:38:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-24 21:38:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-24 21:38:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-24 21:38:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-24 21:38:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-24 21:38:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-24 21:38:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-24 21:38:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-24 21:38:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-24 21:38:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-24 21:38:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-24 21:38:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-24 21:38:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-24 21:38:29,907 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-24 21:38:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-24 21:38:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:38:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 21:38:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-24 21:38:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:38:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-24 21:38:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-24 21:38:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-24 21:38:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-24 21:38:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-09-24 21:38:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:38:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-24 21:38:29,910 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-09-24 21:38:29,910 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-24 21:38:29,910 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-24 21:38:29,910 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-09-24 21:38:29,910 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-24 21:38:29,910 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-24 21:38:29,911 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-24 21:38:29,911 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-24 21:38:29,911 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-24 21:38:29,911 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-24 21:38:29,911 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-24 21:38:29,911 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-24 21:38:29,911 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-24 21:38:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-24 21:38:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-24 21:38:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-24 21:38:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-24 21:38:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-24 21:38:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-24 21:38:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-24 21:38:29,912 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-24 21:38:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-24 21:38:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-24 21:38:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-24 21:38:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-24 21:38:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-24 21:38:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-24 21:38:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-24 21:38:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-24 21:38:29,913 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-24 21:38:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-24 21:38:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-24 21:38:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-24 21:38:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-24 21:38:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-24 21:38:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-24 21:38:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-24 21:38:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-24 21:38:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-24 21:38:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-24 21:38:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-24 21:38:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-24 21:38:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-09-24 21:38:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-09-24 21:38:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:38:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:38:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:38:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2020-09-24 21:38:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2020-09-24 21:38:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:38:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:38:29,916 INFO L130 BoogieDeclarations]: Found specification of procedure dll_get_data_at [2020-09-24 21:38:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:38:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure dll_update_at [2020-09-24 21:38:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:38:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:38:29,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:38:30,418 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-09-24 21:38:30,641 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:38:30,641 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-09-24 21:38:30,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:38:30 BoogieIcfgContainer [2020-09-24 21:38:30,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:38:30,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:38:30,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:38:30,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:38:30,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:38:28" (1/3) ... [2020-09-24 21:38:30,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e617e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:38:30, skipping insertion in model container [2020-09-24 21:38:30,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:38:29" (2/3) ... [2020-09-24 21:38:30,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e617e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:38:30, skipping insertion in model container [2020-09-24 21:38:30,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:38:30" (3/3) ... [2020-09-24 21:38:30,659 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2n_update_all_reverse.i [2020-09-24 21:38:30,669 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:38:30,680 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:38:30,701 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:38:30,729 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:38:30,729 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:38:30,729 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:38:30,729 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:38:30,730 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:38:30,730 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:38:30,730 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:38:30,730 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:38:30,756 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-09-24 21:38:30,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-24 21:38:30,766 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:38:30,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:38:30,768 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:38:30,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:38:30,775 INFO L82 PathProgramCache]: Analyzing trace with hash 935667377, now seen corresponding path program 1 times [2020-09-24 21:38:30,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:38:30,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455982507] [2020-09-24 21:38:30,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:38:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:30,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:31,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:31,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:31,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:32,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:32,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-24 21:38:32,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:38:32,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1252 [2020-09-24 21:38:32,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:32,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:38:32,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 21:38:32,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:38:32,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:38:32,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:38:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:32,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:32,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:32,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:38:32,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:32,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:38:32,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:32,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:32,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:32,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 21:38:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:32,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:32,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:32,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 21:38:32,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:32,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 21:38:32,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:32,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:38:32,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:38:32,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:38:32,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:32,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-24 21:38:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:32,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:32,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:32,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:38:32,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:32,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 21:38:32,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:32,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:32,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:38:32,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:32,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:32,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:38:32,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455982507] [2020-09-24 21:38:32,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:38:32,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 21:38:32,470 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498487354] [2020-09-24 21:38:32,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 21:38:32,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:38:32,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 21:38:32,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:38:32,502 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 7 states. [2020-09-24 21:38:33,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:38:33,076 INFO L93 Difference]: Finished difference Result 189 states and 222 transitions. [2020-09-24 21:38:33,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 21:38:33,079 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-24 21:38:33,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:38:33,093 INFO L225 Difference]: With dead ends: 189 [2020-09-24 21:38:33,093 INFO L226 Difference]: Without dead ends: 91 [2020-09-24 21:38:33,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:38:33,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-24 21:38:33,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 80. [2020-09-24 21:38:33,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-24 21:38:33,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 85 transitions. [2020-09-24 21:38:33,162 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 85 transitions. Word has length 38 [2020-09-24 21:38:33,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:38:33,162 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 85 transitions. [2020-09-24 21:38:33,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 21:38:33,163 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 85 transitions. [2020-09-24 21:38:33,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 21:38:33,165 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:38:33,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:38:33,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:38:33,166 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:38:33,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:38:33,167 INFO L82 PathProgramCache]: Analyzing trace with hash -48112681, now seen corresponding path program 1 times [2020-09-24 21:38:33,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:38:33,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1410557057] [2020-09-24 21:38:33,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:38:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:33,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:33,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:33,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:33,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:33,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:34,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:35,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:35,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:38,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:38,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 21:38:38,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 21:38:38,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-24 21:38:38,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:38:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 21:38:38,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 21:38:38,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-24 21:38:38,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:38:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:38,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:38,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:38,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:38:38,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:38,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:38:38,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:38,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:38,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:38,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:38,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:38:38,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 21:38:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:38,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:38,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:38,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 21:38:38,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:38,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-09-24 21:38:38,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:38,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:38:38,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 21:38:38,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 21:38:38,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:38:38,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-24 21:38:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:38,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:38,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:38,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:38:38,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:38,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:38:38,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:38,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:38,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:38:38,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:38,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:38:38,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:38:38,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1410557057] [2020-09-24 21:38:38,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:38:38,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 21:38:38,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922028806] [2020-09-24 21:38:38,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:38:38,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:38:38,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:38:38,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:38:38,638 INFO L87 Difference]: Start difference. First operand 80 states and 85 transitions. Second operand 9 states. [2020-09-24 21:38:39,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:38:39,212 INFO L93 Difference]: Finished difference Result 157 states and 168 transitions. [2020-09-24 21:38:39,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 21:38:39,212 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2020-09-24 21:38:39,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:38:39,216 INFO L225 Difference]: With dead ends: 157 [2020-09-24 21:38:39,216 INFO L226 Difference]: Without dead ends: 104 [2020-09-24 21:38:39,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-09-24 21:38:39,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-09-24 21:38:39,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 93. [2020-09-24 21:38:39,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-24 21:38:39,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 99 transitions. [2020-09-24 21:38:39,247 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 99 transitions. Word has length 50 [2020-09-24 21:38:39,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:38:39,248 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 99 transitions. [2020-09-24 21:38:39,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:38:39,248 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 99 transitions. [2020-09-24 21:38:39,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-24 21:38:39,253 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:38:39,254 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:38:39,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:38:39,254 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:38:39,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:38:39,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1084814599, now seen corresponding path program 2 times [2020-09-24 21:38:39,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:38:39,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [393216487] [2020-09-24 21:38:39,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:38:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:39,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:39,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:39,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:39,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:39,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:40,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:40,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:42,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:42,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:44,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:44,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-09-24 21:38:44,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 21:38:44,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-24 21:38:44,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:44,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:38:44,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 21:38:44,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-24 21:38:44,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:44,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:38:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:44,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:44,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:44,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:38:44,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:44,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:38:44,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:44,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:44,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:44,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:44,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:44,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 21:38:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:44,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:44,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:44,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:44,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:45,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:45,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 21:38:45,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:38:45,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 782 [2020-09-24 21:38:45,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:45,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:38:45,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:38:45,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 21:38:45,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:45,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 21:38:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:38:45,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:38:45,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:38:45,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:38:45,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:38:45,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:38:45,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:38:45,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:38:45,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:38:45,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:38:45,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:38:45,287 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:38:45,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [393216487] [2020-09-24 21:38:45,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:38:45,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 21:38:45,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544012973] [2020-09-24 21:38:45,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:38:45,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:38:45,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:38:45,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:38:45,290 INFO L87 Difference]: Start difference. First operand 93 states and 99 transitions. Second operand 10 states. [2020-09-24 21:38:45,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:38:45,710 INFO L93 Difference]: Finished difference Result 111 states and 120 transitions. [2020-09-24 21:38:45,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:38:45,711 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 62 [2020-09-24 21:38:45,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:38:45,711 INFO L225 Difference]: With dead ends: 111 [2020-09-24 21:38:45,712 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 21:38:45,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:38:45,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 21:38:45,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 21:38:45,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 21:38:45,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 21:38:45,714 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2020-09-24 21:38:45,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:38:45,714 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 21:38:45,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:38:45,715 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 21:38:45,715 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 21:38:45,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:38:45,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 21:38:46,088 INFO L268 CegarLoopResult]: For program point L609(line 609) no Hoare annotation was computed. [2020-09-24 21:38:46,089 INFO L268 CegarLoopResult]: For program point L608(line 608) no Hoare annotation was computed. [2020-09-24 21:38:46,089 INFO L268 CegarLoopResult]: For program point L609-1(line 609) no Hoare annotation was computed. [2020-09-24 21:38:46,090 INFO L268 CegarLoopResult]: For program point L608-1(line 608) no Hoare annotation was computed. [2020-09-24 21:38:46,090 INFO L268 CegarLoopResult]: For program point L609-2(line 609) no Hoare annotation was computed. [2020-09-24 21:38:46,090 INFO L268 CegarLoopResult]: For program point L606(lines 606 612) no Hoare annotation was computed. [2020-09-24 21:38:46,090 INFO L268 CegarLoopResult]: For program point L608-2(line 608) no Hoare annotation was computed. [2020-09-24 21:38:46,091 INFO L268 CegarLoopResult]: For program point L606-1(lines 606 612) no Hoare annotation was computed. [2020-09-24 21:38:46,092 INFO L264 CegarLoopResult]: At program point L607-2(lines 607 610) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-09-24 21:38:46,093 INFO L268 CegarLoopResult]: For program point L607-3(lines 607 610) no Hoare annotation was computed. [2020-09-24 21:38:46,093 INFO L264 CegarLoopResult]: At program point dll_update_atENTRY(lines 606 612) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) [2020-09-24 21:38:46,093 INFO L268 CegarLoopResult]: For program point dll_update_atEXIT(lines 606 612) no Hoare annotation was computed. [2020-09-24 21:38:46,093 INFO L268 CegarLoopResult]: For program point dll_update_atFINAL(lines 606 612) no Hoare annotation was computed. [2020-09-24 21:38:46,094 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-24 21:38:46,094 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-24 21:38:46,094 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 21:38:46,094 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-24 21:38:46,095 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:38:46,095 INFO L271 CegarLoopResult]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2020-09-24 21:38:46,095 INFO L268 CegarLoopResult]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2020-09-24 21:38:46,095 INFO L271 CegarLoopResult]: At program point L562(line 562) the Hoare annotation is: true [2020-09-24 21:38:46,095 INFO L268 CegarLoopResult]: For program point L578-1(lines 578 580) no Hoare annotation was computed. [2020-09-24 21:38:46,096 INFO L264 CegarLoopResult]: At program point dll_createENTRY(lines 574 591) the Hoare annotation is: (or (not (<= 2 |dll_create_#in~len|)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|))) [2020-09-24 21:38:46,097 INFO L268 CegarLoopResult]: For program point L574(lines 574 591) no Hoare annotation was computed. [2020-09-24 21:38:46,097 INFO L271 CegarLoopResult]: At program point L576-2(lines 576 589) the Hoare annotation is: true [2020-09-24 21:38:46,097 INFO L268 CegarLoopResult]: For program point L576-3(lines 576 589) no Hoare annotation was computed. [2020-09-24 21:38:46,098 INFO L268 CegarLoopResult]: For program point dll_createFINAL(lines 574 591) no Hoare annotation was computed. [2020-09-24 21:38:46,098 INFO L268 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-09-24 21:38:46,098 INFO L268 CegarLoopResult]: For program point L583(lines 576 589) no Hoare annotation was computed. [2020-09-24 21:38:46,098 INFO L268 CegarLoopResult]: For program point L581(line 581) no Hoare annotation was computed. [2020-09-24 21:38:46,098 INFO L271 CegarLoopResult]: At program point L579(line 579) the Hoare annotation is: true [2020-09-24 21:38:46,099 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-09-24 21:38:46,099 INFO L268 CegarLoopResult]: For program point L577-1(line 577) no Hoare annotation was computed. [2020-09-24 21:38:46,099 INFO L268 CegarLoopResult]: For program point L575(line 575) no Hoare annotation was computed. [2020-09-24 21:38:46,099 INFO L268 CegarLoopResult]: For program point dll_createEXIT(lines 574 591) no Hoare annotation was computed. [2020-09-24 21:38:46,100 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-09-24 21:38:46,100 INFO L268 CegarLoopResult]: For program point L588-1(line 588) no Hoare annotation was computed. [2020-09-24 21:38:46,100 INFO L268 CegarLoopResult]: For program point L588-2(line 588) no Hoare annotation was computed. [2020-09-24 21:38:46,100 INFO L268 CegarLoopResult]: For program point L584(lines 584 586) no Hoare annotation was computed. [2020-09-24 21:38:46,100 INFO L268 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-09-24 21:38:46,101 INFO L268 CegarLoopResult]: For program point L578(lines 578 580) no Hoare annotation was computed. [2020-09-24 21:38:46,101 INFO L268 CegarLoopResult]: For program point L66-1(line 66) no Hoare annotation was computed. [2020-09-24 21:38:46,101 INFO L268 CegarLoopResult]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2020-09-24 21:38:46,101 INFO L268 CegarLoopResult]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2020-09-24 21:38:46,102 INFO L268 CegarLoopResult]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2020-09-24 21:38:46,102 INFO L268 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-09-24 21:38:46,103 INFO L268 CegarLoopResult]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2020-09-24 21:38:46,103 INFO L268 CegarLoopResult]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2020-09-24 21:38:46,103 INFO L268 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-09-24 21:38:46,103 INFO L268 CegarLoopResult]: For program point L71-1(line 71) no Hoare annotation was computed. [2020-09-24 21:38:46,103 INFO L268 CegarLoopResult]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2020-09-24 21:38:46,104 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:38:46,104 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 21:38:46,104 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 21:38:46,104 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 21:38:46,105 INFO L268 CegarLoopResult]: For program point L604(line 604) no Hoare annotation was computed. [2020-09-24 21:38:46,105 INFO L268 CegarLoopResult]: For program point L604-1(line 604) no Hoare annotation was computed. [2020-09-24 21:38:46,105 INFO L268 CegarLoopResult]: For program point L602(line 602) no Hoare annotation was computed. [2020-09-24 21:38:46,105 INFO L268 CegarLoopResult]: For program point L601(line 601) no Hoare annotation was computed. [2020-09-24 21:38:46,105 INFO L268 CegarLoopResult]: For program point L602-1(line 602) no Hoare annotation was computed. [2020-09-24 21:38:46,106 INFO L268 CegarLoopResult]: For program point L601-1(line 601) no Hoare annotation was computed. [2020-09-24 21:38:46,106 INFO L268 CegarLoopResult]: For program point L602-2(line 602) no Hoare annotation was computed. [2020-09-24 21:38:46,106 INFO L268 CegarLoopResult]: For program point L599(lines 599 605) no Hoare annotation was computed. [2020-09-24 21:38:46,106 INFO L268 CegarLoopResult]: For program point L601-2(line 601) no Hoare annotation was computed. [2020-09-24 21:38:46,106 INFO L271 CegarLoopResult]: At program point L600-2(lines 600 603) the Hoare annotation is: true [2020-09-24 21:38:46,107 INFO L268 CegarLoopResult]: For program point L600-3(lines 600 603) no Hoare annotation was computed. [2020-09-24 21:38:46,107 INFO L268 CegarLoopResult]: For program point dll_get_data_atFINAL(lines 599 605) no Hoare annotation was computed. [2020-09-24 21:38:46,107 INFO L271 CegarLoopResult]: At program point dll_get_data_atENTRY(lines 599 605) the Hoare annotation is: true [2020-09-24 21:38:46,107 INFO L268 CegarLoopResult]: For program point dll_get_data_atEXIT(lines 599 605) no Hoare annotation was computed. [2020-09-24 21:38:46,108 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 613 632) no Hoare annotation was computed. [2020-09-24 21:38:46,108 INFO L268 CegarLoopResult]: For program point L622-2(lines 622 627) no Hoare annotation was computed. [2020-09-24 21:38:46,108 INFO L268 CegarLoopResult]: For program point L622-3(line 622) no Hoare annotation was computed. [2020-09-24 21:38:46,108 INFO L268 CegarLoopResult]: For program point L618(line 618) no Hoare annotation was computed. [2020-09-24 21:38:46,108 INFO L268 CegarLoopResult]: For program point L622-4(line 622) no Hoare annotation was computed. [2020-09-24 21:38:46,109 INFO L264 CegarLoopResult]: At program point L622-5(lines 622 627) the Hoare annotation is: (and (= main_~len~0 2) (<= 1 main_~i~0)) [2020-09-24 21:38:46,111 INFO L264 CegarLoopResult]: At program point L622-6(lines 622 627) the Hoare annotation is: (= main_~len~0 2) [2020-09-24 21:38:46,111 INFO L268 CegarLoopResult]: For program point L618-3(line 618) no Hoare annotation was computed. [2020-09-24 21:38:46,111 INFO L268 CegarLoopResult]: For program point L618-4(line 618) no Hoare annotation was computed. [2020-09-24 21:38:46,113 INFO L264 CegarLoopResult]: At program point L618-5(lines 618 621) the Hoare annotation is: (= main_~len~0 2) [2020-09-24 21:38:46,113 INFO L268 CegarLoopResult]: For program point L618-6(lines 618 621) no Hoare annotation was computed. [2020-09-24 21:38:46,113 INFO L268 CegarLoopResult]: For program point L631(line 631) no Hoare annotation was computed. [2020-09-24 21:38:46,113 INFO L268 CegarLoopResult]: For program point L623(line 623) no Hoare annotation was computed. [2020-09-24 21:38:46,114 INFO L268 CegarLoopResult]: For program point L619(line 619) no Hoare annotation was computed. [2020-09-24 21:38:46,114 INFO L268 CegarLoopResult]: For program point L615(line 615) no Hoare annotation was computed. [2020-09-24 21:38:46,114 INFO L268 CegarLoopResult]: For program point L628(line 628) no Hoare annotation was computed. [2020-09-24 21:38:46,114 INFO L264 CegarLoopResult]: At program point L624(line 624) the Hoare annotation is: false [2020-09-24 21:38:46,114 INFO L268 CegarLoopResult]: For program point L624-1(line 624) no Hoare annotation was computed. [2020-09-24 21:38:46,115 INFO L268 CegarLoopResult]: For program point L624-2(lines 624 626) no Hoare annotation was computed. [2020-09-24 21:38:46,115 INFO L268 CegarLoopResult]: For program point L624-3(line 624) no Hoare annotation was computed. [2020-09-24 21:38:46,115 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 613 632) no Hoare annotation was computed. [2020-09-24 21:38:46,116 INFO L264 CegarLoopResult]: At program point L620(line 620) the Hoare annotation is: (= main_~len~0 2) [2020-09-24 21:38:46,116 INFO L268 CegarLoopResult]: For program point L624-4(line 624) no Hoare annotation was computed. [2020-09-24 21:38:46,116 INFO L268 CegarLoopResult]: For program point L620-1(lines 618 621) no Hoare annotation was computed. [2020-09-24 21:38:46,117 INFO L264 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (and (= main_~len~0 2) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-24 21:38:46,117 INFO L268 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-09-24 21:38:46,118 INFO L268 CegarLoopResult]: For program point L616-2(line 616) no Hoare annotation was computed. [2020-09-24 21:38:46,118 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 630) no Hoare annotation was computed. [2020-09-24 21:38:46,119 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 613 632) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-09-24 21:38:46,119 INFO L264 CegarLoopResult]: At program point L625(lines 613 632) the Hoare annotation is: false [2020-09-24 21:38:46,119 INFO L268 CegarLoopResult]: For program point L617(line 617) no Hoare annotation was computed. [2020-09-24 21:38:46,119 INFO L268 CegarLoopResult]: For program point dll_destroyEXIT(lines 592 598) no Hoare annotation was computed. [2020-09-24 21:38:46,120 INFO L264 CegarLoopResult]: At program point dll_destroyENTRY(lines 592 598) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-24 21:38:46,120 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-09-24 21:38:46,120 INFO L268 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-09-24 21:38:46,120 INFO L268 CegarLoopResult]: For program point L595-1(line 595) no Hoare annotation was computed. [2020-09-24 21:38:46,120 INFO L268 CegarLoopResult]: For program point L594-1(line 594) no Hoare annotation was computed. [2020-09-24 21:38:46,121 INFO L268 CegarLoopResult]: For program point L594-2(line 594) no Hoare annotation was computed. [2020-09-24 21:38:46,121 INFO L271 CegarLoopResult]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2020-09-24 21:38:46,121 INFO L268 CegarLoopResult]: For program point L593-3(lines 592 598) no Hoare annotation was computed. [2020-09-24 21:38:46,121 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-09-24 21:38:46,121 INFO L268 CegarLoopResult]: For program point node_createENTRY(lines 564 573) no Hoare annotation was computed. [2020-09-24 21:38:46,122 INFO L268 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-09-24 21:38:46,122 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-09-24 21:38:46,122 INFO L268 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-09-24 21:38:46,122 INFO L268 CegarLoopResult]: For program point L566(lines 566 568) no Hoare annotation was computed. [2020-09-24 21:38:46,122 INFO L268 CegarLoopResult]: For program point node_createEXIT(lines 564 573) no Hoare annotation was computed. [2020-09-24 21:38:46,123 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-09-24 21:38:46,123 INFO L268 CegarLoopResult]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2020-09-24 21:38:46,123 INFO L268 CegarLoopResult]: For program point L565-1(line 565) no Hoare annotation was computed. [2020-09-24 21:38:46,123 INFO L268 CegarLoopResult]: For program point node_createFINAL(lines 564 573) no Hoare annotation was computed. [2020-09-24 21:38:46,149 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-24 21:38:46,151 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-24 21:38:46,151 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-24 21:38:46,152 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-24 21:38:46,152 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 21:38:46,153 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 21:38:46,153 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 21:38:46,153 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 21:38:46,154 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 21:38:46,154 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 21:38:46,155 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-24 21:38:46,155 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-24 21:38:46,156 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-24 21:38:46,156 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-24 21:38:46,156 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 21:38:46,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 21:38:46,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 21:38:46,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 21:38:46,158 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 21:38:46,158 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 21:38:46,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:38:46 BoogieIcfgContainer [2020-09-24 21:38:46,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:38:46,175 INFO L168 Benchmark]: Toolchain (without parser) took 17198.22 ms. Allocated memory was 140.5 MB in the beginning and 335.0 MB in the end (delta: 194.5 MB). Free memory was 101.3 MB in the beginning and 112.8 MB in the end (delta: -11.5 MB). Peak memory consumption was 183.0 MB. Max. memory is 7.1 GB. [2020-09-24 21:38:46,176 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 21:38:46,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.02 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 100.7 MB in the beginning and 170.1 MB in the end (delta: -69.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-09-24 21:38:46,180 INFO L168 Benchmark]: Boogie Preprocessor took 86.68 ms. Allocated memory is still 204.5 MB. Free memory was 170.1 MB in the beginning and 166.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-09-24 21:38:46,182 INFO L168 Benchmark]: RCFGBuilder took 845.26 ms. Allocated memory is still 204.5 MB. Free memory was 166.8 MB in the beginning and 113.3 MB in the end (delta: 53.5 MB). Peak memory consumption was 53.5 MB. Max. memory is 7.1 GB. [2020-09-24 21:38:46,190 INFO L168 Benchmark]: TraceAbstraction took 15517.05 ms. Allocated memory was 204.5 MB in the beginning and 335.0 MB in the end (delta: 130.5 MB). Free memory was 112.6 MB in the beginning and 112.8 MB in the end (delta: -150.5 kB). Peak memory consumption was 130.4 MB. Max. memory is 7.1 GB. [2020-09-24 21:38:46,203 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.02 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 100.7 MB in the beginning and 170.1 MB in the end (delta: -69.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.68 ms. Allocated memory is still 204.5 MB. Free memory was 170.1 MB in the beginning and 166.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 845.26 ms. Allocated memory is still 204.5 MB. Free memory was 166.8 MB in the beginning and 113.3 MB in the end (delta: 53.5 MB). Peak memory consumption was 53.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15517.05 ms. Allocated memory was 204.5 MB in the beginning and 335.0 MB in the end (delta: 130.5 MB). Free memory was 112.6 MB in the beginning and 112.8 MB in the end (delta: -150.5 kB). Peak memory consumption was 130.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 630]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: len == 2 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: len == 2 && 1 <= i - InvariantResult [Line: 607]: Loop Invariant [2020-09-24 21:38:46,225 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-24 21:38:46,226 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-24 21:38:46,226 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-24 21:38:46,226 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-24 21:38:46,227 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 21:38:46,227 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 21:38:46,227 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 21:38:46,227 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 21:38:46,228 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 21:38:46,228 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 21:38:46,229 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-24 21:38:46,229 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-09-24 21:38:46,230 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-24 21:38:46,230 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-09-24 21:38:46,230 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 21:38:46,230 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 21:38:46,231 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 21:38:46,231 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-24 21:38:46,231 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-09-24 21:38:46,232 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (#memory_$Pointer$ == \old(#memory_$Pointer$) && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && #memory_$Pointer$ == \old(#memory_$Pointer$) - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 120 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.9s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 214 SDtfs, 321 SDslu, 573 SDs, 0 SdLazy, 794 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred 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, 3 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 36 PreInvPairs, 46 NumberOfFragments, 116 HoareAnnotationTreeSize, 36 FomulaSimplifications, 68 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 22 FomulaSimplificationsInter, 132 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 18525 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/15 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 correct! Received shutdown request...