/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c225d54 [2021-05-02 11:56:30,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-02 11:56:30,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-02 11:56:30,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-02 11:56:30,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-02 11:56:30,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-02 11:56:30,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-02 11:56:30,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-02 11:56:30,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-02 11:56:30,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-02 11:56:30,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-02 11:56:30,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-02 11:56:30,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-02 11:56:30,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-02 11:56:30,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-02 11:56:30,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-02 11:56:30,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-02 11:56:30,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-02 11:56:30,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-02 11:56:30,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-02 11:56:30,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-02 11:56:30,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-02 11:56:30,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-02 11:56:30,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-02 11:56:30,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-02 11:56:30,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-02 11:56:30,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-02 11:56:30,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-02 11:56:30,187 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-05-02 11:56:30,205 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-02 11:56:30,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-02 11:56:30,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-02 11:56:30,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-02 11:56:30,207 INFO L138 SettingsManager]: * Use SBE=true [2021-05-02 11:56:30,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-02 11:56:30,207 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-02 11:56:30,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-02 11:56:30,207 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-02 11:56:30,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-02 11:56:30,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-02 11:56:30,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-02 11:56:30,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-02 11:56:30,208 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-02 11:56:30,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-02 11:56:30,208 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-02 11:56:30,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-02 11:56:30,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-02 11:56:30,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-02 11:56:30,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-02 11:56:30,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-02 11:56:30,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-02 11:56:30,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-02 11:56:30,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-02 11:56:30,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-02 11:56:30,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-02 11:56:30,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-02 11:56:30,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-05-02 11:56:30,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-02 11:56:30,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-02 11:56:30,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-02 11:56:30,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-02 11:56:30,503 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-02 11:56:30,503 INFO L275 PluginConnector]: CDTParser initialized [2021-05-02 11:56:30,504 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2021-05-02 11:56:30,560 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fd7b8757/4551c97111a74124aa9a6a618236f324/FLAG5a04a511e [2021-05-02 11:56:30,864 INFO L306 CDTParser]: Found 1 translation units. [2021-05-02 11:56:30,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2021-05-02 11:56:30,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fd7b8757/4551c97111a74124aa9a6a618236f324/FLAG5a04a511e [2021-05-02 11:56:31,293 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fd7b8757/4551c97111a74124aa9a6a618236f324 [2021-05-02 11:56:31,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-02 11:56:31,297 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-02 11:56:31,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-02 11:56:31,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-02 11:56:31,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-02 11:56:31,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 11:56:31" (1/1) ... [2021-05-02 11:56:31,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2715d466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:56:31, skipping insertion in model container [2021-05-02 11:56:31,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.05 11:56:31" (1/1) ... [2021-05-02 11:56:31,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-02 11:56:31,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-02 11:56:31,422 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] [2021-05-02 11:56:31,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 11:56:31,454 INFO L203 MainTranslator]: Completed pre-run [2021-05-02 11:56:31,464 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] [2021-05-02 11:56:31,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-02 11:56:31,552 INFO L208 MainTranslator]: Completed translation [2021-05-02 11:56:31,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:56:31 WrapperNode [2021-05-02 11:56:31,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-02 11:56:31,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-02 11:56:31,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-02 11:56:31,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-02 11:56:31,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:56:31" (1/1) ... [2021-05-02 11:56:31,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:56:31" (1/1) ... [2021-05-02 11:56:31,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:56:31" (1/1) ... [2021-05-02 11:56:31,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:56:31" (1/1) ... [2021-05-02 11:56:31,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:56:31" (1/1) ... [2021-05-02 11:56:31,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:56:31" (1/1) ... [2021-05-02 11:56:31,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:56:31" (1/1) ... [2021-05-02 11:56:31,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-02 11:56:31,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-02 11:56:31,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-02 11:56:31,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-02 11:56:31,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:56:31" (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 [2021-05-02 11:56:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-02 11:56:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-02 11:56:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-02 11:56:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-02 11:56:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure r_strncpy [2021-05-02 11:56:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2021-05-02 11:56:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-02 11:56:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-02 11:56:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-02 11:56:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-05-02 11:56:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-05-02 11:56:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-02 11:56:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-02 11:56:31,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-05-02 11:56:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-02 11:56:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2021-05-02 11:56:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-05-02 11:56:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-05-02 11:56:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-05-02 11:56:31,707 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy_ptr [2021-05-02 11:56:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2021-05-02 11:56:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2021-05-02 11:56:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-05-02 11:56:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2021-05-02 11:56:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-05-02 11:56:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-05-02 11:56:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure isascii [2021-05-02 11:56:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure isspace [2021-05-02 11:56:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2021-05-02 11:56:31,708 INFO L130 BoogieDeclarations]: Found specification of procedure strrand [2021-05-02 11:56:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure istrrand [2021-05-02 11:56:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure istrchr [2021-05-02 11:56:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure istrrchr [2021-05-02 11:56:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure istrncmp [2021-05-02 11:56:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure istrstr [2021-05-02 11:56:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncpy [2021-05-02 11:56:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcpy [2021-05-02 11:56:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcat [2021-05-02 11:56:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncat [2021-05-02 11:56:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure r_memcpy [2021-05-02 11:56:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2021-05-02 11:56:31,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-02 11:56:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-02 11:56:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-02 11:56:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-02 11:56:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-02 11:56:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-02 11:56:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-02 11:56:32,144 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-02 11:56:32,145 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-05-02 11:56:32,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 11:56:32 BoogieIcfgContainer [2021-05-02 11:56:32,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-02 11:56:32,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-02 11:56:32,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-02 11:56:32,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-02 11:56:32,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.05 11:56:31" (1/3) ... [2021-05-02 11:56:32,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529cd15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 11:56:32, skipping insertion in model container [2021-05-02 11:56:32,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.05 11:56:31" (2/3) ... [2021-05-02 11:56:32,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@529cd15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.05 11:56:32, skipping insertion in model container [2021-05-02 11:56:32,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.05 11:56:32" (3/3) ... [2021-05-02 11:56:32,152 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER_cases1_stripFullBoth_arr.i [2021-05-02 11:56:32,158 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-02 11:56:32,161 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-02 11:56:32,175 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-02 11:56:32,203 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-02 11:56:32,203 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-02 11:56:32,203 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-02 11:56:32,203 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-02 11:56:32,204 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-02 11:56:32,204 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-02 11:56:32,204 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-02 11:56:32,204 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-02 11:56:32,218 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) [2021-05-02 11:56:32,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-02 11:56:32,222 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 11:56:32,223 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] [2021-05-02 11:56:32,223 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 11:56:32,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 11:56:32,228 INFO L82 PathProgramCache]: Analyzing trace with hash -541205821, now seen corresponding path program 1 times [2021-05-02 11:56:32,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 11:56:32,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433027294] [2021-05-02 11:56:32,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 11:56:32,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:56:32,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 11:56:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:56:32,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-05-02 11:56:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:56:32,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 11:56:32,448 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 11:56:32,448 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433027294] [2021-05-02 11:56:32,449 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433027294] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 11:56:32,450 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 11:56:32,450 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-02 11:56:32,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910226990] [2021-05-02 11:56:32,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-02 11:56:32,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 11:56:32,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-02 11:56:32,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 11:56:32,465 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) [2021-05-02 11:56:32,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 11:56:32,652 INFO L93 Difference]: Finished difference Result 102 states and 138 transitions. [2021-05-02 11:56:32,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-02 11:56:32,654 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 [2021-05-02 11:56:32,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 11:56:32,659 INFO L225 Difference]: With dead ends: 102 [2021-05-02 11:56:32,659 INFO L226 Difference]: Without dead ends: 47 [2021-05-02 11:56:32,663 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-02 11:56:32,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-05-02 11:56:32,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-05-02 11:56:32,696 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) [2021-05-02 11:56:32,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2021-05-02 11:56:32,701 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 32 [2021-05-02 11:56:32,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 11:56:32,702 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2021-05-02 11:56:32,702 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) [2021-05-02 11:56:32,703 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2021-05-02 11:56:32,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-02 11:56:32,704 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 11:56:32,705 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] [2021-05-02 11:56:32,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-02 11:56:32,705 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 11:56:32,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 11:56:32,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1555699344, now seen corresponding path program 1 times [2021-05-02 11:56:32,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 11:56:32,707 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485944092] [2021-05-02 11:56:32,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 11:56:32,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:56:32,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 11:56:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:56:32,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-05-02 11:56:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:56:32,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 11:56:32,828 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 11:56:32,828 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485944092] [2021-05-02 11:56:32,829 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485944092] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 11:56:32,829 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 11:56:32,829 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-02 11:56:32,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583417402] [2021-05-02 11:56:32,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-02 11:56:32,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 11:56:32,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-02 11:56:32,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-02 11:56:32,831 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) [2021-05-02 11:56:32,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 11:56:32,939 INFO L93 Difference]: Finished difference Result 88 states and 108 transitions. [2021-05-02 11:56:32,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-02 11:56:32,940 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 [2021-05-02 11:56:32,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 11:56:32,941 INFO L225 Difference]: With dead ends: 88 [2021-05-02 11:56:32,941 INFO L226 Difference]: Without dead ends: 49 [2021-05-02 11:56:32,942 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.4ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-02 11:56:32,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-05-02 11:56:32,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2021-05-02 11:56:32,947 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) [2021-05-02 11:56:32,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2021-05-02 11:56:32,947 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 36 [2021-05-02 11:56:32,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 11:56:32,948 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2021-05-02 11:56:32,948 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) [2021-05-02 11:56:32,948 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2021-05-02 11:56:32,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-05-02 11:56:32,949 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 11:56:32,949 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] [2021-05-02 11:56:32,949 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-02 11:56:32,949 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 11:56:32,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 11:56:32,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1615735470, now seen corresponding path program 1 times [2021-05-02 11:56:32,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 11:56:32,950 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957429422] [2021-05-02 11:56:32,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 11:56:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:56:32,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 11:56:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:56:32,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-02 11:56:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:56:33,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 11:56:33,000 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 11:56:33,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957429422] [2021-05-02 11:56:33,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957429422] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 11:56:33,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110512333] [2021-05-02 11:56:33,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 11:56:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:56:33,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2021-05-02 11:56:33,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 11:56:33,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-02 11:56:33,222 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110512333] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 11:56:33,222 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-05-02 11:56:33,222 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-05-02 11:56:33,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354440520] [2021-05-02 11:56:33,222 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-02 11:56:33,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 11:56:33,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-02 11:56:33,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-05-02 11:56:33,223 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-02 11:56:33,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 11:56:33,232 INFO L93 Difference]: Finished difference Result 84 states and 104 transitions. [2021-05-02 11:56:33,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-02 11:56:33,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2021-05-02 11:56:33,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 11:56:33,234 INFO L225 Difference]: With dead ends: 84 [2021-05-02 11:56:33,234 INFO L226 Difference]: Without dead ends: 49 [2021-05-02 11:56:33,234 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 26.7ms TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-05-02 11:56:33,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-05-02 11:56:33,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-05-02 11:56:33,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 40 states have (on average 1.275) internal successors, (51), 40 states have internal predecessors, (51), 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) [2021-05-02 11:56:33,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2021-05-02 11:56:33,243 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 38 [2021-05-02 11:56:33,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 11:56:33,244 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2021-05-02 11:56:33,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-02 11:56:33,244 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2021-05-02 11:56:33,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-05-02 11:56:33,245 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 11:56:33,245 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] [2021-05-02 11:56:33,469 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-05-02 11:56:33,469 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 11:56:33,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 11:56:33,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1357570032, now seen corresponding path program 1 times [2021-05-02 11:56:33,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 11:56:33,470 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604176396] [2021-05-02 11:56:33,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 11:56:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:56:33,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 11:56:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:56:33,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-05-02 11:56:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:56:33,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 11:56:33,562 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 11:56:33,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604176396] [2021-05-02 11:56:33,564 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604176396] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 11:56:33,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252936898] [2021-05-02 11:56:33,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 11:56:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:56:33,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 3 conjunts are in the unsatisfiable core [2021-05-02 11:56:33,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-02 11:56:33,702 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 11:56:33,719 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-02 11:56:33,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-02 11:56:33,783 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252936898] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-02 11:56:33,783 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-02 11:56:33,783 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2021-05-02 11:56:33,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120384218] [2021-05-02 11:56:33,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-02 11:56:33,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 11:56:33,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-02 11:56:33,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-05-02 11:56:33,785 INFO L87 Difference]: Start difference. First operand 49 states and 59 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-02 11:56:33,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 11:56:33,898 INFO L93 Difference]: Finished difference Result 92 states and 112 transitions. [2021-05-02 11:56:33,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-02 11:56:33,898 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2021-05-02 11:56:33,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 11:56:33,899 INFO L225 Difference]: With dead ends: 92 [2021-05-02 11:56:33,899 INFO L226 Difference]: Without dead ends: 52 [2021-05-02 11:56:33,900 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 23.6ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-05-02 11:56:33,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-05-02 11:56:33,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2021-05-02 11:56:33,903 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) [2021-05-02 11:56:33,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 61 transitions. [2021-05-02 11:56:33,904 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 61 transitions. Word has length 38 [2021-05-02 11:56:33,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 11:56:33,904 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 61 transitions. [2021-05-02 11:56:33,905 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-05-02 11:56:33,905 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2021-05-02 11:56:33,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-05-02 11:56:33,905 INFO L515 BasicCegarLoop]: Found error trace [2021-05-02 11:56:33,906 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] [2021-05-02 11:56:34,117 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-02 11:56:34,117 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-02 11:56:34,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-02 11:56:34,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1077255026, now seen corresponding path program 2 times [2021-05-02 11:56:34,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-02 11:56:34,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82015626] [2021-05-02 11:56:34,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-02 11:56:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:56:34,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-02 11:56:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:56:34,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-05-02 11:56:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-02 11:56:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-02 11:56:34,189 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-02 11:56:34,189 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82015626] [2021-05-02 11:56:34,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82015626] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-02 11:56:34,190 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-02 11:56:34,190 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-02 11:56:34,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344425848] [2021-05-02 11:56:34,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-02 11:56:34,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-02 11:56:34,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-02 11:56:34,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-02 11:56:34,191 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) [2021-05-02 11:56:34,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-02 11:56:34,330 INFO L93 Difference]: Finished difference Result 62 states and 76 transitions. [2021-05-02 11:56:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-02 11:56:34,331 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 [2021-05-02 11:56:34,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-02 11:56:34,333 INFO L225 Difference]: With dead ends: 62 [2021-05-02 11:56:34,333 INFO L226 Difference]: Without dead ends: 0 [2021-05-02 11:56:34,337 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 64.8ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-05-02 11:56:34,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-02 11:56:34,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-02 11:56:34,337 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) [2021-05-02 11:56:34,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-02 11:56:34,338 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2021-05-02 11:56:34,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-02 11:56:34,339 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-02 11:56:34,339 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) [2021-05-02 11:56:34,340 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-02 11:56:34,340 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-02 11:56:34,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-02 11:56:34,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-05-02 11:56:34,459 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-05-02 11:56:34,459 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-05-02 11:56:34,459 INFO L198 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-05-02 11:56:34,459 INFO L194 CegarLoopUtils]: At program point L77(line 77) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2021-05-02 11:56:34,459 INFO L198 CegarLoopUtils]: For program point L77-1(line 77) no Hoare annotation was computed. [2021-05-02 11:56:34,460 INFO L198 CegarLoopUtils]: For program point L73(lines 73 75) no Hoare annotation was computed. [2021-05-02 11:56:34,460 INFO L198 CegarLoopUtils]: For program point L65(lines 65 83) no Hoare annotation was computed. [2021-05-02 11:56:34,460 INFO L198 CegarLoopUtils]: For program point L70-1(line 70) no Hoare annotation was computed. [2021-05-02 11:56:34,460 INFO L198 CegarLoopUtils]: For program point L70-2(line 70) no Hoare annotation was computed. [2021-05-02 11:56:34,460 INFO L198 CegarLoopUtils]: For program point L66(line 66) no Hoare annotation was computed. [2021-05-02 11:56:34,460 INFO L198 CegarLoopUtils]: For program point L70-4(line 70) no Hoare annotation was computed. [2021-05-02 11:56:34,460 INFO L198 CegarLoopUtils]: For program point L70-6(line 70) no Hoare annotation was computed. [2021-05-02 11:56:34,460 INFO L198 CegarLoopUtils]: For program point parse_expression_listFINAL(lines 58 86) no Hoare annotation was computed. [2021-05-02 11:56:34,460 INFO L198 CegarLoopUtils]: For program point L62(line 62) no Hoare annotation was computed. [2021-05-02 11:56:34,460 INFO L201 CegarLoopUtils]: At program point L70-8(line 70) the Hoare annotation is: true [2021-05-02 11:56:34,460 INFO L198 CegarLoopUtils]: For program point L70-9(line 70) no Hoare annotation was computed. [2021-05-02 11:56:34,461 INFO L194 CegarLoopUtils]: At program point parse_expression_listENTRY(lines 58 86) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-05-02 11:56:34,476 INFO L198 CegarLoopUtils]: For program point L71(line 71) no Hoare annotation was computed. [2021-05-02 11:56:34,476 INFO L198 CegarLoopUtils]: For program point L71-2(line 71) no Hoare annotation was computed. [2021-05-02 11:56:34,476 INFO L198 CegarLoopUtils]: For program point L71-4(lines 65 83) no Hoare annotation was computed. [2021-05-02 11:56:34,476 INFO L198 CegarLoopUtils]: For program point L67-1(line 67) no Hoare annotation was computed. [2021-05-02 11:56:34,476 INFO L198 CegarLoopUtils]: For program point L67-3(line 67) no Hoare annotation was computed. [2021-05-02 11:56:34,476 INFO L201 CegarLoopUtils]: At program point L67-5(line 67) the Hoare annotation is: true [2021-05-02 11:56:34,476 INFO L198 CegarLoopUtils]: For program point L63-1(lines 63 84) no Hoare annotation was computed. [2021-05-02 11:56:34,477 INFO L198 CegarLoopUtils]: For program point L67-6(line 67) no Hoare annotation was computed. [2021-05-02 11:56:34,477 INFO L198 CegarLoopUtils]: For program point L63-2(lines 63 84) no Hoare annotation was computed. [2021-05-02 11:56:34,477 INFO L198 CegarLoopUtils]: For program point parse_expression_listEXIT(lines 58 86) no Hoare annotation was computed. [2021-05-02 11:56:34,477 INFO L201 CegarLoopUtils]: At program point L63-4(lines 63 84) the Hoare annotation is: true [2021-05-02 11:56:34,477 INFO L198 CegarLoopUtils]: For program point L63-5(lines 63 84) no Hoare annotation was computed. [2021-05-02 11:56:34,477 INFO L194 CegarLoopUtils]: At program point L76(line 76) the Hoare annotation is: (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) [2021-05-02 11:56:34,477 INFO L198 CegarLoopUtils]: For program point L76-1(line 76) no Hoare annotation was computed. [2021-05-02 11:56:34,477 INFO L198 CegarLoopUtils]: For program point L72(lines 72 81) no Hoare annotation was computed. [2021-05-02 11:56:34,477 INFO L198 CegarLoopUtils]: For program point L68(line 68) no Hoare annotation was computed. [2021-05-02 11:56:34,477 INFO L198 CegarLoopUtils]: For program point L68-2(line 68) no Hoare annotation was computed. [2021-05-02 11:56:34,478 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-05-02 11:56:34,478 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)|)) [2021-05-02 11:56:34,478 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-05-02 11:56:34,478 INFO L198 CegarLoopUtils]: For program point r_strncpyFINAL(line 42) no Hoare annotation was computed. [2021-05-02 11:56:34,478 INFO L198 CegarLoopUtils]: For program point r_strncpyEXIT(line 42) no Hoare annotation was computed. [2021-05-02 11:56:34,478 INFO L201 CegarLoopUtils]: At program point r_strncpyENTRY(line 42) the Hoare annotation is: true [2021-05-02 11:56:34,478 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-05-02 11:56:34,478 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-05-02 11:56:34,478 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-05-02 11:56:34,479 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-05-02 11:56:34,479 INFO L201 CegarLoopUtils]: At program point L94(line 94) the Hoare annotation is: true [2021-05-02 11:56:34,479 INFO L194 CegarLoopUtils]: At program point mainENTRY(lines 87 96) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-05-02 11:56:34,479 INFO L198 CegarLoopUtils]: For program point L94-1(line 94) no Hoare annotation was computed. [2021-05-02 11:56:34,479 INFO L198 CegarLoopUtils]: For program point mainEXIT(lines 87 96) no Hoare annotation was computed. [2021-05-02 11:56:34,479 INFO L198 CegarLoopUtils]: For program point L90-2(lines 90 92) no Hoare annotation was computed. [2021-05-02 11:56:34,479 INFO L201 CegarLoopUtils]: At program point L90-3(lines 90 92) the Hoare annotation is: true [2021-05-02 11:56:34,479 INFO L198 CegarLoopUtils]: For program point L90-4(lines 90 92) no Hoare annotation was computed. [2021-05-02 11:56:34,479 INFO L198 CegarLoopUtils]: For program point mainFINAL(lines 87 96) no Hoare annotation was computed. [2021-05-02 11:56:34,480 INFO L198 CegarLoopUtils]: For program point L16(line 16) no Hoare annotation was computed. [2021-05-02 11:56:34,480 INFO L198 CegarLoopUtils]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-05-02 11:56:34,480 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 14 19) the Hoare annotation is: true [2021-05-02 11:56:34,480 INFO L198 CegarLoopUtils]: For program point L15-2(lines 14 19) no Hoare annotation was computed. [2021-05-02 11:56:34,480 INFO L198 CegarLoopUtils]: For program point __VERIFIER_assertEXIT(lines 14 19) no Hoare annotation was computed. [2021-05-02 11:56:34,480 INFO L198 CegarLoopUtils]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2021-05-02 11:56:34,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.05 11:56:34 BoogieIcfgContainer [2021-05-02 11:56:34,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-02 11:56:34,490 INFO L168 Benchmark]: Toolchain (without parser) took 3193.23 ms. Allocated memory was 222.3 MB in the beginning and 289.4 MB in the end (delta: 67.1 MB). Free memory was 186.9 MB in the beginning and 269.3 MB in the end (delta: -82.4 MB). Peak memory consumption was 111.4 MB. Max. memory is 8.0 GB. [2021-05-02 11:56:34,490 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 222.3 MB. Free memory is still 203.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-02 11:56:34,490 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.42 ms. Allocated memory is still 222.3 MB. Free memory was 186.7 MB in the beginning and 204.8 MB in the end (delta: -18.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 8.0 GB. [2021-05-02 11:56:34,490 INFO L168 Benchmark]: Boogie Preprocessor took 64.95 ms. Allocated memory is still 222.3 MB. Free memory was 204.8 MB in the beginning and 202.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-05-02 11:56:34,491 INFO L168 Benchmark]: RCFGBuilder took 526.30 ms. Allocated memory is still 222.3 MB. Free memory was 202.2 MB in the beginning and 173.3 MB in the end (delta: 28.8 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. [2021-05-02 11:56:34,491 INFO L168 Benchmark]: TraceAbstraction took 2341.78 ms. Allocated memory was 222.3 MB in the beginning and 289.4 MB in the end (delta: 67.1 MB). Free memory was 172.8 MB in the beginning and 269.3 MB in the end (delta: -96.5 MB). Peak memory consumption was 97.0 MB. Max. memory is 8.0 GB. [2021-05-02 11:56:34,491 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 222.3 MB. Free memory is still 203.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 255.42 ms. Allocated memory is still 222.3 MB. Free memory was 186.7 MB in the beginning and 204.8 MB in the end (delta: -18.1 MB). Peak memory consumption was 13.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 64.95 ms. Allocated memory is still 222.3 MB. Free memory was 204.8 MB in the beginning and 202.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 526.30 ms. Allocated memory is still 222.3 MB. Free memory was 202.2 MB in the beginning and 173.3 MB in the end (delta: 28.8 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2341.78 ms. Allocated memory was 222.3 MB in the beginning and 289.4 MB in the end (delta: 67.1 MB). Free memory was 172.8 MB in the beginning and 269.3 MB in the end (delta: -96.5 MB). Peak memory consumption was 97.0 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: 2139.3ms, OverallIterations: 5, TraceHistogramMax: 2, EmptinessCheckTime: 11.6ms, AutomataDifference: 591.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 117.7ms, InitialAbstractionConstructionTime: 10.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 268 SDtfs, 48 SDslu, 300 SDs, 0 SdLazy, 294 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 301.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 192.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 48.2ms AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 14 LocationsWithAnnotation, 40 PreInvPairs, 50 NumberOfFragments, 58 HoareAnnotationTreeSize, 40 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 41.9ms HoareSimplificationTime, 14 FomulaSimplificationsInter, 92 FormulaSimplificationTreeSizeReductionInter, 50.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 37.7ms SsaConstructionTime, 135.2ms SatisfiabilityAnalysisTime, 629.2ms InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 253 ConstructedInterpolants, 0 QuantifiedInterpolants, 412 SizeOfPredicates, 0 NumberOfNonLiveVariables, 356 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 5/8 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 - 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...