/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 11:20:37,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 11:20:37,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 11:20:37,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-06 11:20:37,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-06 11:20:37,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-06 11:20:37,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-06 11:20:37,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-06 11:20:37,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-06 11:20:37,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-06 11:20:37,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-06 11:20:37,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-06 11:20:37,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 11:20:37,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 11:20:37,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 11:20:37,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 11:20:37,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 11:20:37,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 11:20:37,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 11:20:37,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 11:20:37,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 11:20:37,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 11:20:37,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 11:20:37,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 11:20:37,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-06 11:20:37,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-06 11:20:37,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-06 11:20:37,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-06 11:20:37,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-06 11:20:37,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-06 11:20:37,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-06 11:20:37,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-06 11:20:37,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-06 11:20:37,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 11:20:37,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 11:20:37,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 11:20:37,251 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-06 11:20:37,261 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 11:20:37,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 11:20:37,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 11:20:37,264 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 11:20:37,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 11:20:37,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 11:20:37,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 11:20:37,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 11:20:37,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 11:20:37,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 11:20:37,265 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 11:20:37,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 11:20:37,265 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 11:20:37,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 11:20:37,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 11:20:37,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 11:20:37,265 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 11:20:37,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 11:20:37,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 11:20:37,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 11:20:37,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-06 11:20:37,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-06 11:20:37,266 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-06 11:20:37,266 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 11:20:37,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 11:20:37,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 11:20:37,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 11:20:37,647 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 11:20:37,648 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 11:20:37,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2021-05-06 11:20:37,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dfadf093/6c9ee326df2a4979909587ac1061ff55/FLAGa9a1f3cf0 [2021-05-06 11:20:38,093 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 11:20:38,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2021-05-06 11:20:38,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dfadf093/6c9ee326df2a4979909587ac1061ff55/FLAGa9a1f3cf0 [2021-05-06 11:20:38,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9dfadf093/6c9ee326df2a4979909587ac1061ff55 [2021-05-06 11:20:38,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 11:20:38,118 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-06 11:20:38,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 11:20:38,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 11:20:38,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 11:20:38,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 11:20:38" (1/1) ... [2021-05-06 11:20:38,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d39ff82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:38, skipping insertion in model container [2021-05-06 11:20:38,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 11:20:38" (1/1) ... [2021-05-06 11:20:38,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 11:20:38,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 11:20:38,258 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i[878,891] [2021-05-06 11:20:38,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 11:20:38,341 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 11:20:38,351 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i[878,891] [2021-05-06 11:20:38,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 11:20:38,390 INFO L208 MainTranslator]: Completed translation [2021-05-06 11:20:38,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:38 WrapperNode [2021-05-06 11:20:38,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 11:20:38,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 11:20:38,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 11:20:38,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 11:20:38,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:38" (1/1) ... [2021-05-06 11:20:38,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:38" (1/1) ... [2021-05-06 11:20:38,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:38" (1/1) ... [2021-05-06 11:20:38,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:38" (1/1) ... [2021-05-06 11:20:38,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:38" (1/1) ... [2021-05-06 11:20:38,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:38" (1/1) ... [2021-05-06 11:20:38,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:38" (1/1) ... [2021-05-06 11:20:38,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 11:20:38,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 11:20:38,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 11:20:38,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 11:20:38,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2021-05-06 11:20:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 11:20:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 11:20:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 11:20:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 11:20:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure r_strncpy [2021-05-06 11:20:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2021-05-06 11:20:38,516 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 11:20:38,516 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 11:20:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 11:20:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-06 11:20:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-06 11:20:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 11:20:38,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 11:20:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-05-06 11:20:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 11:20:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2021-05-06 11:20:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-05-06 11:20:38,518 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-05-06 11:20:38,519 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-05-06 11:20:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy_ptr [2021-05-06 11:20:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2021-05-06 11:20:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2021-05-06 11:20:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-05-06 11:20:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-05-06 11:20:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-05-06 11:20:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-05-06 11:20:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure isascii [2021-05-06 11:20:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure isspace [2021-05-06 11:20:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2021-05-06 11:20:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure strrand [2021-05-06 11:20:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure istrrand [2021-05-06 11:20:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure istrchr [2021-05-06 11:20:38,521 INFO L130 BoogieDeclarations]: Found specification of procedure istrrchr [2021-05-06 11:20:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure istrncmp [2021-05-06 11:20:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure istrstr [2021-05-06 11:20:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncpy [2021-05-06 11:20:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcpy [2021-05-06 11:20:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcat [2021-05-06 11:20:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncat [2021-05-06 11:20:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure r_memcpy [2021-05-06 11:20:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2021-05-06 11:20:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 11:20:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 11:20:38,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 11:20:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 11:20:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 11:20:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 11:20:38,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 11:20:38,783 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 11:20:38,783 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-05-06 11:20:38,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 11:20:38 BoogieIcfgContainer [2021-05-06 11:20:38,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 11:20:38,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 11:20:38,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 11:20:38,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 11:20:38,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 11:20:38" (1/3) ... [2021-05-06 11:20:38,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772cc5c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 11:20:38, skipping insertion in model container [2021-05-06 11:20:38,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 11:20:38" (2/3) ... [2021-05-06 11:20:38,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772cc5c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 11:20:38, skipping insertion in model container [2021-05-06 11:20:38,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 11:20:38" (3/3) ... [2021-05-06 11:20:38,790 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER_cases1_stripFullBoth_arr.i [2021-05-06 11:20:38,794 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-06 11:20:38,796 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 11:20:38,807 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 11:20:38,827 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 11:20:38,827 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-06 11:20:38,827 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-06 11:20:38,828 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 11:20:38,828 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 11:20:38,828 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 11:20:38,828 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 11:20:38,828 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 11:20:38,842 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 44 states have internal predecessors, (63), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-06 11:20:38,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-06 11:20:38,848 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:20:38,848 INFO L523 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] [2021-05-06 11:20:38,848 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:20:38,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:20:38,852 INFO L82 PathProgramCache]: Analyzing trace with hash -541205821, now seen corresponding path program 1 times [2021-05-06 11:20:38,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:20:38,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1238582391] [2021-05-06 11:20:38,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:20:38,902 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:20:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:39,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:20:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:39,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-05-06 11:20:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:39,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:20:39,076 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:20:39,076 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1238582391] [2021-05-06 11:20:39,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1238582391] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:20:39,077 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:20:39,077 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-06 11:20:39,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531602015] [2021-05-06 11:20:39,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-06 11:20:39,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:20:39,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-06 11:20:39,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 11:20:39,090 INFO L87 Difference]: Start difference. First operand has 55 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 44 states have internal predecessors, (63), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 11:20:39,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:20:39,220 INFO L93 Difference]: Finished difference Result 102 states and 138 transitions. [2021-05-06 11:20:39,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-06 11:20:39,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2021-05-06 11:20:39,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:20:39,225 INFO L225 Difference]: With dead ends: 102 [2021-05-06 11:20:39,225 INFO L226 Difference]: Without dead ends: 47 [2021-05-06 11:20:39,228 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 11:20:39,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-05-06 11:20:39,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-05-06 11:20:39,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-06 11:20:39,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2021-05-06 11:20:39,263 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 32 [2021-05-06 11:20:39,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:20:39,263 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2021-05-06 11:20:39,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 11:20:39,264 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2021-05-06 11:20:39,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-06 11:20:39,266 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:20:39,266 INFO L523 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] [2021-05-06 11:20:39,266 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 11:20:39,266 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:20:39,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:20:39,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1555699344, now seen corresponding path program 1 times [2021-05-06 11:20:39,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:20:39,267 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1032861689] [2021-05-06 11:20:39,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:20:39,270 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:20:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:39,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:20:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:39,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-05-06 11:20:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:39,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:20:39,359 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:20:39,360 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1032861689] [2021-05-06 11:20:39,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1032861689] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:20:39,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:20:39,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-06 11:20:39,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771374978] [2021-05-06 11:20:39,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-06 11:20:39,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:20:39,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-06 11:20:39,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-06 11:20:39,361 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 11:20:39,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:20:39,459 INFO L93 Difference]: Finished difference Result 88 states and 108 transitions. [2021-05-06 11:20:39,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-06 11:20:39,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2021-05-06 11:20:39,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:20:39,466 INFO L225 Difference]: With dead ends: 88 [2021-05-06 11:20:39,466 INFO L226 Difference]: Without dead ends: 49 [2021-05-06 11:20:39,467 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.0ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-06 11:20:39,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-05-06 11:20:39,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2021-05-06 11:20:39,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 39 states have internal predecessors, (50), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-06 11:20:39,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2021-05-06 11:20:39,481 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 36 [2021-05-06 11:20:39,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:20:39,481 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2021-05-06 11:20:39,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 11:20:39,481 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2021-05-06 11:20:39,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-05-06 11:20:39,482 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:20:39,483 INFO L523 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] [2021-05-06 11:20:39,483 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-06 11:20:39,483 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:20:39,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:20:39,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1615735470, now seen corresponding path program 1 times [2021-05-06 11:20:39,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:20:39,484 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2015278851] [2021-05-06 11:20:39,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:20:39,496 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:20:39,496 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-06 11:20:39,498 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:20:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:39,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:20:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:39,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-06 11:20:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:39,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:20:39,568 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:20:39,568 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2015278851] [2021-05-06 11:20:39,568 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2015278851] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:20:39,568 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:20:39,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-06 11:20:39,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984590226] [2021-05-06 11:20:39,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-06 11:20:39,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:20:39,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-06 11:20:39,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-06 11:20:39,570 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 11:20:39,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:20:39,669 INFO L93 Difference]: Finished difference Result 90 states and 110 transitions. [2021-05-06 11:20:39,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-06 11:20:39,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2021-05-06 11:20:39,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:20:39,671 INFO L225 Difference]: With dead ends: 90 [2021-05-06 11:20:39,671 INFO L226 Difference]: Without dead ends: 51 [2021-05-06 11:20:39,671 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 17.3ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-06 11:20:39,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-05-06 11:20:39,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2021-05-06 11:20:39,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 41 states have internal predecessors, (52), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-06 11:20:39,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2021-05-06 11:20:39,683 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 38 [2021-05-06 11:20:39,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:20:39,683 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2021-05-06 11:20:39,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 11:20:39,683 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2021-05-06 11:20:39,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-06 11:20:39,685 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:20:39,685 INFO L523 BasicCegarLoop]: trace histogram [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] [2021-05-06 11:20:39,685 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-06 11:20:39,685 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:20:39,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:20:39,686 INFO L82 PathProgramCache]: Analyzing trace with hash 819089588, now seen corresponding path program 2 times [2021-05-06 11:20:39,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:20:39,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1102155968] [2021-05-06 11:20:39,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:20:39,690 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:20:39,690 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-06 11:20:39,692 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:20:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:39,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:20:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:39,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 11:20:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:39,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:20:39,738 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:20:39,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1102155968] [2021-05-06 11:20:39,738 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1102155968] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:20:39,738 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:20:39,738 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-06 11:20:39,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882747199] [2021-05-06 11:20:39,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-06 11:20:39,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:20:39,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-06 11:20:39,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-06 11:20:39,739 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 11:20:39,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:20:39,819 INFO L93 Difference]: Finished difference Result 86 states and 106 transitions. [2021-05-06 11:20:39,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-06 11:20:39,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2021-05-06 11:20:39,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:20:39,820 INFO L225 Difference]: With dead ends: 86 [2021-05-06 11:20:39,820 INFO L226 Difference]: Without dead ends: 51 [2021-05-06 11:20:39,820 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.1ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-06 11:20:39,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-05-06 11:20:39,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-05-06 11:20:39,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 42 states have internal predecessors, (53), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-06 11:20:39,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 61 transitions. [2021-05-06 11:20:39,824 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 61 transitions. Word has length 40 [2021-05-06 11:20:39,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:20:39,824 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 61 transitions. [2021-05-06 11:20:39,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 11:20:39,825 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2021-05-06 11:20:39,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-06 11:20:39,825 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 11:20:39,825 INFO L523 BasicCegarLoop]: trace histogram [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] [2021-05-06 11:20:39,825 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-06 11:20:39,825 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 11:20:39,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 11:20:39,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1077255026, now seen corresponding path program 1 times [2021-05-06 11:20:39,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-06 11:20:39,826 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112264604] [2021-05-06 11:20:39,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 11:20:39,830 INFO L73 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2021-05-06 11:20:39,830 WARN L75 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-06 11:20:39,831 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-06 11:20:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:39,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 11:20:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:39,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-06 11:20:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 11:20:39,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-06 11:20:39,885 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-06 11:20:39,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112264604] [2021-05-06 11:20:39,886 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [112264604] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 11:20:39,886 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 11:20:39,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-06 11:20:39,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058594832] [2021-05-06 11:20:39,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-06 11:20:39,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-06 11:20:39,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-06 11:20:39,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-06 11:20:39,887 INFO L87 Difference]: Start difference. First operand 51 states and 61 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 11:20:39,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 11:20:39,992 INFO L93 Difference]: Finished difference Result 62 states and 76 transitions. [2021-05-06 11:20:39,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-06 11:20:39,993 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2021-05-06 11:20:39,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 11:20:39,993 INFO L225 Difference]: With dead ends: 62 [2021-05-06 11:20:39,993 INFO L226 Difference]: Without dead ends: 0 [2021-05-06 11:20:39,994 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.9ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-05-06 11:20:39,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-06 11:20:39,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-06 11:20:39,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-06 11:20:39,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-06 11:20:39,994 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2021-05-06 11:20:39,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 11:20:39,994 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-06 11:20:39,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-06 11:20:39,995 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-06 11:20:39,995 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-06 11:20:39,995 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-06 11:20:39,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-05-06 11:20:40,147 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-05-06 11:20:40,148 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-05-06 11:20:40,148 INFO L198 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-05-06 11:20:40,148 INFO L194 CegarLoopUtils]: At program point L77(line 77) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2021-05-06 11:20:40,148 INFO L194 CegarLoopUtils]: At program point L77-1(line 77) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2021-05-06 11:20:40,148 INFO L201 CegarLoopUtils]: At program point L73(lines 73 75) the Hoare annotation is: true [2021-05-06 11:20:40,148 INFO L201 CegarLoopUtils]: At program point L65(lines 65 83) the Hoare annotation is: true [2021-05-06 11:20:40,148 INFO L201 CegarLoopUtils]: At program point L70-1(line 70) the Hoare annotation is: true [2021-05-06 11:20:40,148 INFO L201 CegarLoopUtils]: At program point L70-2(line 70) the Hoare annotation is: true [2021-05-06 11:20:40,148 INFO L201 CegarLoopUtils]: At program point L66(line 66) the Hoare annotation is: true [2021-05-06 11:20:40,148 INFO L201 CegarLoopUtils]: At program point L70-4(line 70) the Hoare annotation is: true [2021-05-06 11:20:40,148 INFO L201 CegarLoopUtils]: At program point L70-6(line 70) the Hoare annotation is: true [2021-05-06 11:20:40,148 INFO L201 CegarLoopUtils]: At program point parse_expression_listFINAL(lines 58 86) the Hoare annotation is: true [2021-05-06 11:20:40,148 INFO L194 CegarLoopUtils]: At program point L62(line 62) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2021-05-06 11:20:40,149 INFO L201 CegarLoopUtils]: At program point L70-8(line 70) the Hoare annotation is: true [2021-05-06 11:20:40,149 INFO L201 CegarLoopUtils]: At program point L70-9(line 70) the Hoare annotation is: true [2021-05-06 11:20:40,149 INFO L194 CegarLoopUtils]: At program point parse_expression_listENTRY(lines 58 86) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-05-06 11:20:40,149 INFO L201 CegarLoopUtils]: At program point L71(line 71) the Hoare annotation is: true [2021-05-06 11:20:40,149 INFO L201 CegarLoopUtils]: At program point L71-2(line 71) the Hoare annotation is: true [2021-05-06 11:20:40,149 INFO L201 CegarLoopUtils]: At program point L71-4(lines 65 83) the Hoare annotation is: true [2021-05-06 11:20:40,149 INFO L201 CegarLoopUtils]: At program point L67-1(line 67) the Hoare annotation is: true [2021-05-06 11:20:40,149 INFO L201 CegarLoopUtils]: At program point L67-3(line 67) the Hoare annotation is: true [2021-05-06 11:20:40,149 INFO L201 CegarLoopUtils]: At program point L67-5(line 67) the Hoare annotation is: true [2021-05-06 11:20:40,149 INFO L201 CegarLoopUtils]: At program point L63-1(lines 63 84) the Hoare annotation is: true [2021-05-06 11:20:40,149 INFO L201 CegarLoopUtils]: At program point L67-6(line 67) the Hoare annotation is: true [2021-05-06 11:20:40,149 INFO L201 CegarLoopUtils]: At program point L63-2(lines 63 84) the Hoare annotation is: true [2021-05-06 11:20:40,149 INFO L201 CegarLoopUtils]: At program point parse_expression_listEXIT(lines 58 86) the Hoare annotation is: true [2021-05-06 11:20:40,149 INFO L201 CegarLoopUtils]: At program point L63-4(lines 63 84) the Hoare annotation is: true [2021-05-06 11:20:40,149 INFO L201 CegarLoopUtils]: At program point L63-5(lines 63 84) the Hoare annotation is: true [2021-05-06 11:20:40,150 INFO L194 CegarLoopUtils]: At program point L76(line 76) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2021-05-06 11:20:40,150 INFO L194 CegarLoopUtils]: At program point L76-1(line 76) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2021-05-06 11:20:40,150 INFO L194 CegarLoopUtils]: At program point L72(lines 72 81) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2021-05-06 11:20:40,150 INFO L201 CegarLoopUtils]: At program point L68(line 68) the Hoare annotation is: true [2021-05-06 11:20:40,150 INFO L201 CegarLoopUtils]: At program point L68-2(line 68) the Hoare annotation is: true [2021-05-06 11:20:40,150 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2021-05-06 11:20:40,150 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2021-05-06 11:20:40,150 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-05-06 11:20:40,150 INFO L201 CegarLoopUtils]: At program point r_strncpyFINAL(line 42) the Hoare annotation is: true [2021-05-06 11:20:40,150 INFO L201 CegarLoopUtils]: At program point r_strncpyEXIT(line 42) the Hoare annotation is: true [2021-05-06 11:20:40,150 INFO L201 CegarLoopUtils]: At program point r_strncpyENTRY(line 42) the Hoare annotation is: true [2021-05-06 11:20:40,150 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-05-06 11:20:40,150 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-05-06 11:20:40,150 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-05-06 11:20:40,150 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-05-06 11:20:40,151 INFO L201 CegarLoopUtils]: At program point L94(line 94) the Hoare annotation is: true [2021-05-06 11:20:40,151 INFO L194 CegarLoopUtils]: At program point mainENTRY(lines 87 96) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-05-06 11:20:40,151 INFO L201 CegarLoopUtils]: At program point L94-1(line 94) the Hoare annotation is: true [2021-05-06 11:20:40,151 INFO L201 CegarLoopUtils]: At program point mainEXIT(lines 87 96) the Hoare annotation is: true [2021-05-06 11:20:40,151 INFO L201 CegarLoopUtils]: At program point L90-2(lines 90 92) the Hoare annotation is: true [2021-05-06 11:20:40,151 INFO L201 CegarLoopUtils]: At program point L90-3(lines 90 92) the Hoare annotation is: true [2021-05-06 11:20:40,151 INFO L201 CegarLoopUtils]: At program point L90-4(lines 90 92) the Hoare annotation is: true [2021-05-06 11:20:40,151 INFO L201 CegarLoopUtils]: At program point mainFINAL(lines 87 96) the Hoare annotation is: true [2021-05-06 11:20:40,151 INFO L194 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-05-06 11:20:40,151 INFO L194 CegarLoopUtils]: At program point L15(lines 15 17) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-05-06 11:20:40,151 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 14 19) the Hoare annotation is: true [2021-05-06 11:20:40,151 INFO L194 CegarLoopUtils]: At program point L15-2(lines 14 19) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-05-06 11:20:40,151 INFO L194 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 14 19) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-05-06 11:20:40,151 INFO L194 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-05-06 11:20:40,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 11:20:40 BoogieIcfgContainer [2021-05-06 11:20:40,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-06 11:20:40,162 INFO L168 Benchmark]: Toolchain (without parser) took 2043.59 ms. Allocated memory was 202.4 MB in the beginning and 250.6 MB in the end (delta: 48.2 MB). Free memory was 167.6 MB in the beginning and 132.4 MB in the end (delta: 35.1 MB). Peak memory consumption was 84.2 MB. Max. memory is 8.0 GB. [2021-05-06 11:20:40,162 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 202.4 MB. Free memory is still 184.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 11:20:40,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.55 ms. Allocated memory is still 202.4 MB. Free memory was 167.3 MB in the beginning and 183.3 MB in the end (delta: -16.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 8.0 GB. [2021-05-06 11:20:40,163 INFO L168 Benchmark]: Boogie Preprocessor took 45.22 ms. Allocated memory is still 202.4 MB. Free memory was 183.3 MB in the beginning and 181.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-06 11:20:40,163 INFO L168 Benchmark]: RCFGBuilder took 346.46 ms. Allocated memory is still 202.4 MB. Free memory was 181.3 MB in the beginning and 152.5 MB in the end (delta: 28.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. [2021-05-06 11:20:40,163 INFO L168 Benchmark]: TraceAbstraction took 1375.98 ms. Allocated memory was 202.4 MB in the beginning and 250.6 MB in the end (delta: 48.2 MB). Free memory was 152.1 MB in the beginning and 132.4 MB in the end (delta: 19.6 MB). Peak memory consumption was 68.2 MB. Max. memory is 8.0 GB. [2021-05-06 11:20:40,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 202.4 MB. Free memory is still 184.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 271.55 ms. Allocated memory is still 202.4 MB. Free memory was 167.3 MB in the beginning and 183.3 MB in the end (delta: -16.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 45.22 ms. Allocated memory is still 202.4 MB. Free memory was 183.3 MB in the beginning and 181.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 346.46 ms. Allocated memory is still 202.4 MB. Free memory was 181.3 MB in the beginning and 152.5 MB in the end (delta: 28.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1375.98 ms. Allocated memory was 202.4 MB in the beginning and 250.6 MB in the end (delta: 48.2 MB). Free memory was 152.1 MB in the beginning and 132.4 MB in the end (delta: 19.6 MB). Peak memory consumption was 68.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1169.3ms, OverallIterations: 5, TraceHistogramMax: 2, EmptinessCheckTime: 12.0ms, AutomataDifference: 543.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 151.9ms, InitialAbstractionConstructionTime: 11.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 265 SDtfs, 55 SDslu, 292 SDs, 0 SdLazy, 348 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 310.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 128.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 55.7ms AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 55 LocationsWithAnnotation, 184 PreInvPairs, 243 NumberOfFragments, 140 HoareAnnotationTreeSize, 184 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 48.1ms HoareSimplificationTime, 55 FomulaSimplificationsInter, 227 FormulaSimplificationTreeSizeReductionInter, 93.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 58]: Procedure Contract for parse_expression_list Derived contract for procedure parse_expression_list: 1 - ProcedureContractResult [Line: 42]: Procedure Contract for r_strncpy Derived contract for procedure r_strncpy: 1 - ProcedureContractResult [Line: 87]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) RESULT: Ultimate proved your program to be correct! Received shutdown request...