/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 04:59:37,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 04:59:37,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 04:59:37,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 04:59:37,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 04:59:37,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 04:59:37,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 04:59:37,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 04:59:37,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 04:59:37,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 04:59:37,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 04:59:37,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 04:59:37,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 04:59:37,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 04:59:37,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 04:59:37,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 04:59:37,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 04:59:37,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 04:59:37,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 04:59:37,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 04:59:37,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 04:59:37,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 04:59:37,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 04:59:37,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 04:59:37,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 04:59:37,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 04:59:37,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 04:59:37,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 04:59:37,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 04:59:37,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 04:59:37,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 04:59:37,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 04:59:37,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 04:59:37,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 04:59:37,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 04:59:37,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 04:59:37,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 04:59:37,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 04:59:37,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 04:59:37,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 04:59:37,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 04:59:37,873 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 04:59:37,898 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 04:59:37,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 04:59:37,899 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 04:59:37,899 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 04:59:37,899 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 04:59:37,899 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 04:59:37,899 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 04:59:37,900 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 04:59:37,900 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 04:59:37,900 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 04:59:37,900 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 04:59:37,900 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 04:59:37,900 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 04:59:37,900 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 04:59:37,900 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 04:59:37,900 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 04:59:37,900 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 04:59:37,901 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 04:59:37,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 04:59:37,901 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 04:59:37,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 04:59:37,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 04:59:37,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 04:59:37,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 04:59:37,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 04:59:37,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 04:59:37,902 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 04:59:37,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 04:59:37,902 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 04:59:37,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 04:59:37,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 04:59:37,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 04:59:37,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:59:37,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 04:59:37,902 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 04:59:37,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 04:59:37,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 04:59:37,903 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 04:59:37,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 04:59:37,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 04:59:37,903 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 04:59:37,903 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 04:59:38,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 04:59:38,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 04:59:38,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 04:59:38,104 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 04:59:38,105 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 04:59:38,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2023-04-01 04:59:39,028 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 04:59:39,199 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 04:59:39,200 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i [2023-04-01 04:59:39,206 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a5226c8e/cfbc9152eeeb4734b7d204873be1207d/FLAGf5117ba2c [2023-04-01 04:59:39,218 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a5226c8e/cfbc9152eeeb4734b7d204873be1207d [2023-04-01 04:59:39,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 04:59:39,223 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 04:59:39,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 04:59:39,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 04:59:39,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 04:59:39,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:59:39" (1/1) ... [2023-04-01 04:59:39,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e467bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:59:39, skipping insertion in model container [2023-04-01 04:59:39,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 04:59:39" (1/1) ... [2023-04-01 04:59:39,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 04:59:39,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 04:59:39,343 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i[878,891] [2023-04-01 04:59:39,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:59:39,379 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 04:59:39,387 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/veris.c_OpenSER_cases1_stripFullBoth_arr.i[878,891] [2023-04-01 04:59:39,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 04:59:39,406 WARN L667 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 04:59:39,410 INFO L208 MainTranslator]: Completed translation [2023-04-01 04:59:39,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:59:39 WrapperNode [2023-04-01 04:59:39,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 04:59:39,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 04:59:39,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 04:59:39,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 04:59:39,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:59:39" (1/1) ... [2023-04-01 04:59:39,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:59:39" (1/1) ... [2023-04-01 04:59:39,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:59:39" (1/1) ... [2023-04-01 04:59:39,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:59:39" (1/1) ... [2023-04-01 04:59:39,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:59:39" (1/1) ... [2023-04-01 04:59:39,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:59:39" (1/1) ... [2023-04-01 04:59:39,434 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:59:39" (1/1) ... [2023-04-01 04:59:39,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:59:39" (1/1) ... [2023-04-01 04:59:39,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 04:59:39,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 04:59:39,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 04:59:39,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 04:59:39,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:59:39" (1/1) ... [2023-04-01 04:59:39,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 04:59:39,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:59:39,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 04:59:39,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 04:59:39,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 04:59:39,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 04:59:39,496 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 04:59:39,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-04-01 04:59:39,496 INFO L138 BoogieDeclarations]: Found implementation of procedure r_strncpy [2023-04-01 04:59:39,497 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_expression_list [2023-04-01 04:59:39,497 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 04:59:39,497 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 04:59:39,497 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 04:59:39,497 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 04:59:39,497 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 04:59:39,497 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 04:59:39,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 04:59:39,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-01 04:59:39,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-04-01 04:59:39,497 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2023-04-01 04:59:39,498 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2023-04-01 04:59:39,498 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2023-04-01 04:59:39,498 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-04-01 04:59:39,498 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy_ptr [2023-04-01 04:59:39,498 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2023-04-01 04:59:39,498 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2023-04-01 04:59:39,498 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-04-01 04:59:39,500 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2023-04-01 04:59:39,500 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2023-04-01 04:59:39,500 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-01 04:59:39,500 INFO L130 BoogieDeclarations]: Found specification of procedure isascii [2023-04-01 04:59:39,500 INFO L130 BoogieDeclarations]: Found specification of procedure isspace [2023-04-01 04:59:39,500 INFO L130 BoogieDeclarations]: Found specification of procedure getc [2023-04-01 04:59:39,500 INFO L130 BoogieDeclarations]: Found specification of procedure strrand [2023-04-01 04:59:39,500 INFO L130 BoogieDeclarations]: Found specification of procedure istrrand [2023-04-01 04:59:39,500 INFO L130 BoogieDeclarations]: Found specification of procedure istrchr [2023-04-01 04:59:39,501 INFO L130 BoogieDeclarations]: Found specification of procedure istrrchr [2023-04-01 04:59:39,501 INFO L130 BoogieDeclarations]: Found specification of procedure istrncmp [2023-04-01 04:59:39,501 INFO L130 BoogieDeclarations]: Found specification of procedure istrstr [2023-04-01 04:59:39,501 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncpy [2023-04-01 04:59:39,501 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcpy [2023-04-01 04:59:39,501 INFO L130 BoogieDeclarations]: Found specification of procedure r_strcat [2023-04-01 04:59:39,501 INFO L130 BoogieDeclarations]: Found specification of procedure r_strncat [2023-04-01 04:59:39,501 INFO L130 BoogieDeclarations]: Found specification of procedure r_memcpy [2023-04-01 04:59:39,501 INFO L130 BoogieDeclarations]: Found specification of procedure parse_expression_list [2023-04-01 04:59:39,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 04:59:39,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 04:59:39,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 04:59:39,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 04:59:39,502 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 04:59:39,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 04:59:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 04:59:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 04:59:39,634 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 04:59:39,635 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 04:59:39,814 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 04:59:39,869 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 04:59:39,870 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-01 04:59:39,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:59:39 BoogieIcfgContainer [2023-04-01 04:59:39,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 04:59:39,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 04:59:39,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 04:59:39,875 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 04:59:39,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 04:59:39" (1/3) ... [2023-04-01 04:59:39,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184325bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:59:39, skipping insertion in model container [2023-04-01 04:59:39,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 04:59:39" (2/3) ... [2023-04-01 04:59:39,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184325bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 04:59:39, skipping insertion in model container [2023-04-01 04:59:39,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 04:59:39" (3/3) ... [2023-04-01 04:59:39,877 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER_cases1_stripFullBoth_arr.i [2023-04-01 04:59:39,890 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 04:59:39,890 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 04:59:39,923 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 04:59:39,928 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@955ed71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 04:59:39,928 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 04:59:39,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 29 states have internal predecessors, (41), 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) [2023-04-01 04:59:39,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-04-01 04:59:39,936 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:59:39,937 INFO L195 NwaCegarLoop]: 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] [2023-04-01 04:59:39,937 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:59:39,940 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:59:39,941 INFO L85 PathProgramCache]: Analyzing trace with hash -455652556, now seen corresponding path program 1 times [2023-04-01 04:59:39,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:59:39,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507872149] [2023-04-01 04:59:39,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:59:39,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:59:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:59:40,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:59:40,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:59:40,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507872149] [2023-04-01 04:59:40,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507872149] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:59:40,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 04:59:40,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 04:59:40,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755331317] [2023-04-01 04:59:40,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:59:40,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 04:59:40,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:59:40,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 04:59:40,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 04:59:40,194 INFO L87 Difference]: Start difference. First operand has 40 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 29 states have internal predecessors, (41), 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 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 04:59:40,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:59:40,248 INFO L93 Difference]: Finished difference Result 75 states and 99 transitions. [2023-04-01 04:59:40,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 04:59:40,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (5), 2 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 25 [2023-04-01 04:59:40,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:59:40,254 INFO L225 Difference]: With dead ends: 75 [2023-04-01 04:59:40,254 INFO L226 Difference]: Without dead ends: 34 [2023-04-01 04:59:40,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 04:59:40,258 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 04:59:40,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 04:59:40,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-04-01 04:59:40,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-04-01 04:59:40,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 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) [2023-04-01 04:59:40,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2023-04-01 04:59:40,292 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 25 [2023-04-01 04:59:40,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:59:40,293 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2023-04-01 04:59:40,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 04:59:40,293 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2023-04-01 04:59:40,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-04-01 04:59:40,294 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:59:40,295 INFO L195 NwaCegarLoop]: 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] [2023-04-01 04:59:40,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 04:59:40,295 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:59:40,297 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:59:40,297 INFO L85 PathProgramCache]: Analyzing trace with hash -157313978, now seen corresponding path program 1 times [2023-04-01 04:59:40,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:59:40,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726480298] [2023-04-01 04:59:40,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:59:40,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:59:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:59:40,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:59:40,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:59:40,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726480298] [2023-04-01 04:59:40,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726480298] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:59:40,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600649382] [2023-04-01 04:59:40,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:59:40,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:59:40,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:59:40,410 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 04:59:40,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 04:59:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:59:40,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-01 04:59:40,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:59:40,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:59:40,539 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 04:59:40,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 04:59:40,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600649382] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 04:59:40,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1232337262] [2023-04-01 04:59:40,601 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2023-04-01 04:59:40,601 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 04:59:40,603 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 04:59:40,606 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 04:59:40,607 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 04:59:40,699 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 18 for LOIs [2023-04-01 04:59:40,773 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-01 04:59:40,779 INFO L197 IcfgInterpreter]: Interpreting procedure parse_expression_list with input of size 35 for LOIs [2023-04-01 04:59:41,011 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 04:59:41,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1232337262] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:59:41,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-04-01 04:59:41,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 4, 4] total 19 [2023-04-01 04:59:41,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335895935] [2023-04-01 04:59:41,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:59:41,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-01 04:59:41,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:59:41,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-01 04:59:41,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2023-04-01 04:59:41,777 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 14 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 04:59:43,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:59:43,088 INFO L93 Difference]: Finished difference Result 92 states and 105 transitions. [2023-04-01 04:59:43,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-01 04:59:43,088 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 4 states have call successors, (5), 4 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 28 [2023-04-01 04:59:43,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:59:43,089 INFO L225 Difference]: With dead ends: 92 [2023-04-01 04:59:43,089 INFO L226 Difference]: Without dead ends: 61 [2023-04-01 04:59:43,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=173, Invalid=819, Unknown=0, NotChecked=0, Total=992 [2023-04-01 04:59:43,091 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 144 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 04:59:43,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 4 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 04:59:43,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-04-01 04:59:43,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 36. [2023-04-01 04:59:43,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 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) [2023-04-01 04:59:43,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2023-04-01 04:59:43,098 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 28 [2023-04-01 04:59:43,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:59:43,098 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2023-04-01 04:59:43,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 4 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 04:59:43,098 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2023-04-01 04:59:43,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-04-01 04:59:43,099 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:59:43,099 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-01 04:59:43,115 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-01 04:59:43,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:59:43,300 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:59:43,301 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:59:43,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1712898664, now seen corresponding path program 1 times [2023-04-01 04:59:43,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:59:43,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490921475] [2023-04-01 04:59:43,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:59:43,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:59:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:59:43,383 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-01 04:59:43,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:59:43,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490921475] [2023-04-01 04:59:43,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490921475] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:59:43,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478308751] [2023-04-01 04:59:43,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:59:43,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:59:43,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:59:43,391 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 04:59:43,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 04:59:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:59:43,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-01 04:59:43,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:59:43,472 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-01 04:59:43,473 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 04:59:43,489 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-01 04:59:43,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478308751] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 04:59:43,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1134970759] [2023-04-01 04:59:43,494 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2023-04-01 04:59:43,494 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 04:59:43,494 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 04:59:43,494 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 04:59:43,494 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 04:59:43,512 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 18 for LOIs [2023-04-01 04:59:43,542 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-01 04:59:43,544 INFO L197 IcfgInterpreter]: Interpreting procedure parse_expression_list with input of size 35 for LOIs [2023-04-01 04:59:44,228 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 11 for LOIs [2023-04-01 04:59:44,230 INFO L197 IcfgInterpreter]: Interpreting procedure r_strncpy with input of size 36 for LOIs [2023-04-01 04:59:44,237 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 04:59:46,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1134970759] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:59:46,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-04-01 04:59:46,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2023-04-01 04:59:46,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370265655] [2023-04-01 04:59:46,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:59:46,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-04-01 04:59:46,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:59:46,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-04-01 04:59:46,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=866, Unknown=0, NotChecked=0, Total=992 [2023-04-01 04:59:46,143 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 27 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 20 states have internal predecessors, (24), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 04:59:48,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:59:48,736 INFO L93 Difference]: Finished difference Result 90 states and 102 transitions. [2023-04-01 04:59:48,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-01 04:59:48,737 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 20 states have internal predecessors, (24), 4 states have call successors, (5), 5 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 32 [2023-04-01 04:59:48,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:59:48,737 INFO L225 Difference]: With dead ends: 90 [2023-04-01 04:59:48,737 INFO L226 Difference]: Without dead ends: 88 [2023-04-01 04:59:48,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 67 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1013 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=398, Invalid=2794, Unknown=0, NotChecked=0, Total=3192 [2023-04-01 04:59:48,741 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 226 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-01 04:59:48,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 4 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-01 04:59:48,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-04-01 04:59:48,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 57. [2023-04-01 04:59:48,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 45 states have internal predecessors, (52), 7 states have call successors, (7), 7 states have call predecessors, (7), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-04-01 04:59:48,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2023-04-01 04:59:48,759 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 32 [2023-04-01 04:59:48,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:59:48,760 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2023-04-01 04:59:48,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 20 states have internal predecessors, (24), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 04:59:48,760 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2023-04-01 04:59:48,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-04-01 04:59:48,760 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 04:59:48,761 INFO L195 NwaCegarLoop]: 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] [2023-04-01 04:59:48,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 04:59:48,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-04-01 04:59:48,966 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 04:59:48,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 04:59:48,967 INFO L85 PathProgramCache]: Analyzing trace with hash -487324000, now seen corresponding path program 1 times [2023-04-01 04:59:48,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 04:59:48,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427302006] [2023-04-01 04:59:48,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:59:48,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 04:59:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:59:49,018 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-01 04:59:49,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 04:59:49,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427302006] [2023-04-01 04:59:49,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427302006] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 04:59:49,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981914367] [2023-04-01 04:59:49,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 04:59:49,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:59:49,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 04:59:49,021 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 04:59:49,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 04:59:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 04:59:49,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-01 04:59:49,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 04:59:49,107 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-01 04:59:49,107 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 04:59:49,122 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-01 04:59:49,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981914367] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 04:59:49,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1240164200] [2023-04-01 04:59:49,126 INFO L159 IcfgInterpreter]: Started Sifa with 30 locations of interest [2023-04-01 04:59:49,126 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 04:59:49,126 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 04:59:49,126 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 04:59:49,126 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 04:59:49,142 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 18 for LOIs [2023-04-01 04:59:49,166 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-01 04:59:49,169 INFO L197 IcfgInterpreter]: Interpreting procedure parse_expression_list with input of size 35 for LOIs [2023-04-01 04:59:49,729 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 11 for LOIs [2023-04-01 04:59:49,732 INFO L197 IcfgInterpreter]: Interpreting procedure r_strncpy with input of size 30 for LOIs [2023-04-01 04:59:49,734 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 04:59:51,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1240164200] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 04:59:51,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-04-01 04:59:51,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [4, 4, 4] total 30 [2023-04-01 04:59:51,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137125968] [2023-04-01 04:59:51,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 04:59:51,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-04-01 04:59:51,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 04:59:51,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-04-01 04:59:51,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=757, Unknown=0, NotChecked=0, Total=870 [2023-04-01 04:59:51,156 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand has 25 states, 20 states have (on average 1.25) internal successors, (25), 18 states have internal predecessors, (25), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 04:59:53,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 04:59:53,232 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2023-04-01 04:59:53,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-01 04:59:53,232 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 20 states have (on average 1.25) internal successors, (25), 18 states have internal predecessors, (25), 4 states have call successors, (5), 5 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 34 [2023-04-01 04:59:53,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 04:59:53,233 INFO L225 Difference]: With dead ends: 66 [2023-04-01 04:59:53,233 INFO L226 Difference]: Without dead ends: 0 [2023-04-01 04:59:53,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 72 SyntacticMatches, 5 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=292, Invalid=2158, Unknown=0, NotChecked=0, Total=2450 [2023-04-01 04:59:53,235 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 112 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-01 04:59:53,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 15 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-01 04:59:53,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-01 04:59:53,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-01 04:59:53,237 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) [2023-04-01 04:59:53,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-01 04:59:53,237 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2023-04-01 04:59:53,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 04:59:53,237 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-01 04:59:53,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 20 states have (on average 1.25) internal successors, (25), 18 states have internal predecessors, (25), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 04:59:53,238 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-01 04:59:53,238 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 04:59:53,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 04:59:53,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-01 04:59:53,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 04:59:53,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-01 04:59:54,656 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2023-04-01 04:59:54,656 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 12) no Hoare annotation was computed. [2023-04-01 04:59:54,656 INFO L899 garLoopResultBuilder]: For program point r_strncpyEXIT(line 42) no Hoare annotation was computed. [2023-04-01 04:59:54,656 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 42) the Hoare annotation is: true [2023-04-01 04:59:54,657 INFO L895 garLoopResultBuilder]: At program point L94(line 94) the Hoare annotation is: (let ((.cse1 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (not (= (select |old(#length)| 2) 43)) (let ((.cse0 (select |#memory_int| 1))) (and (<= (+ |#StackHeapBarrier| 1) |main_~#A~0.base|) (= 2 (select |#length| 1)) (<= 8 main_~i~1) (= |main_~#A~0.offset| 0) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= 43 (select |#length| 2)) (= (select |#valid| 2) 1) (exists ((|v_#memory_int_56| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_56| |main_~#A~0.base| (store (select |v_#memory_int_56| |main_~#A~0.base|) 8 0)))) (= (select .cse0 0) 48) (= (select .cse0 1) 0))) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select .cse1 0) 48)) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse1 1) 0)))) [2023-04-01 04:59:54,657 INFO L899 garLoopResultBuilder]: For program point L94-1(line 94) no Hoare annotation was computed. [2023-04-01 04:59:54,657 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 87 96) no Hoare annotation was computed. [2023-04-01 04:59:54,657 INFO L895 garLoopResultBuilder]: At program point L90-3(lines 90 92) the Hoare annotation is: (let ((.cse0 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (not (= (select |old(#length)| 2) 43)) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select .cse0 0) 48)) (let ((.cse1 (select |#memory_int| 1))) (and (<= 0 main_~i~1) (<= (+ |#StackHeapBarrier| 1) |main_~#A~0.base|) (= 2 (select |#length| 1)) (= |main_~#A~0.offset| 0) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= 43 (select |#length| 2)) (= (select |#valid| 2) 1) (= (select .cse1 0) 48) (= (select .cse1 1) 0))) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse0 1) 0)))) [2023-04-01 04:59:54,657 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 87 96) the Hoare annotation is: (let ((.cse0 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (not (= (select |old(#length)| 2) 43)) (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select .cse0 0) 48)) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse0 1) 0)))) [2023-04-01 04:59:54,658 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (+ |#StackHeapBarrier| 1)) (.cse2 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (not (= (select |old(#length)| 2) 43)) (< |parse_expression_list_#in~str.base| .cse0) (let ((.cse1 (select |#memory_int| 1))) (and (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) (= |parse_expression_list_#in~str.base| parse_expression_list_~str.base) (<= .cse0 |parse_expression_list_~#str2~0.base|) (= parse_expression_list_~str.offset 0) (<= 0 parse_expression_list_~i~0) (<= parse_expression_list_~start~0 parse_expression_list_~j~0) (= 2 (select |#length| 1)) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= 43 (select |#length| 2)) (= (select |#valid| 2) 1) (= (select .cse1 0) 48) (= |parse_expression_list_~#str2~0.offset| 0) (= (select .cse1 1) 0))) (not (= |parse_expression_list_#in~str.offset| 0)) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select .cse2 0) 48)) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse2 1) 0)) (forall ((|v_#memory_int_56| (Array Int (Array Int Int)))) (not (= |old(#memory_int)| (store |v_#memory_int_56| |parse_expression_list_#in~str.base| (store (select |v_#memory_int_56| |parse_expression_list_#in~str.base|) 8 0))))))) [2023-04-01 04:59:54,658 INFO L899 garLoopResultBuilder]: For program point L77-1(line 77) no Hoare annotation was computed. [2023-04-01 04:59:54,658 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 75) no Hoare annotation was computed. [2023-04-01 04:59:54,658 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 83) no Hoare annotation was computed. [2023-04-01 04:59:54,658 INFO L899 garLoopResultBuilder]: For program point L66(line 66) no Hoare annotation was computed. [2023-04-01 04:59:54,658 INFO L899 garLoopResultBuilder]: For program point L70-6(line 70) no Hoare annotation was computed. [2023-04-01 04:59:54,658 INFO L899 garLoopResultBuilder]: For program point parse_expression_listFINAL(lines 58 86) no Hoare annotation was computed. [2023-04-01 04:59:54,658 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2023-04-01 04:59:54,658 INFO L895 garLoopResultBuilder]: At program point L70-8(line 70) the Hoare annotation is: (let ((.cse0 (+ |#StackHeapBarrier| 1)) (.cse1 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (not (= (select |old(#length)| 2) 43)) (< |parse_expression_list_#in~str.base| .cse0) (not (= |parse_expression_list_#in~str.offset| 0)) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select .cse1 0) 48)) (let ((.cse2 (select |#memory_int| 1))) (and (= |parse_expression_list_#in~str.base| parse_expression_list_~str.base) (<= .cse0 |parse_expression_list_~#str2~0.base|) (= parse_expression_list_~str.offset 0) (<= 0 parse_expression_list_~i~0) (= 2 (select |#length| 1)) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= 43 (select |#length| 2)) (= (select |#valid| 2) 1) (= (select .cse2 0) 48) (= |parse_expression_list_~#str2~0.offset| 0) (= (select .cse2 1) 0))) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse1 1) 0)) (forall ((|v_#memory_int_56| (Array Int (Array Int Int)))) (not (= |old(#memory_int)| (store |v_#memory_int_56| |parse_expression_list_#in~str.base| (store (select |v_#memory_int_56| |parse_expression_list_#in~str.base|) 8 0))))))) [2023-04-01 04:59:54,658 INFO L899 garLoopResultBuilder]: For program point L70-9(line 70) no Hoare annotation was computed. [2023-04-01 04:59:54,658 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 58 86) the Hoare annotation is: (let ((.cse0 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (not (= (select |old(#length)| 2) 43)) (< |parse_expression_list_#in~str.base| (+ |#StackHeapBarrier| 1)) (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) (not (= |parse_expression_list_#in~str.offset| 0)) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select .cse0 0) 48)) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse0 1) 0)) (forall ((|v_#memory_int_56| (Array Int (Array Int Int)))) (not (= |old(#memory_int)| (store |v_#memory_int_56| |parse_expression_list_#in~str.base| (store (select |v_#memory_int_56| |parse_expression_list_#in~str.base|) 8 0))))))) [2023-04-01 04:59:54,659 INFO L899 garLoopResultBuilder]: For program point L71-4(lines 65 83) no Hoare annotation was computed. [2023-04-01 04:59:54,659 INFO L899 garLoopResultBuilder]: For program point L67-3(line 67) no Hoare annotation was computed. [2023-04-01 04:59:54,659 INFO L895 garLoopResultBuilder]: At program point L67-5(line 67) the Hoare annotation is: (let ((.cse0 (+ |#StackHeapBarrier| 1)) (.cse1 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (not (= (select |old(#length)| 2) 43)) (< |parse_expression_list_#in~str.base| .cse0) (not (= |parse_expression_list_#in~str.offset| 0)) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select .cse1 0) 48)) (let ((.cse2 (select |#memory_int| 1))) (and (= |parse_expression_list_#in~str.base| parse_expression_list_~str.base) (<= .cse0 |parse_expression_list_~#str2~0.base|) (= parse_expression_list_~str.offset 0) (<= 0 parse_expression_list_~i~0) (= 2 (select |#length| 1)) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= 43 (select |#length| 2)) (= (select |#valid| 2) 1) (= (select .cse2 0) 48) (= |parse_expression_list_~#str2~0.offset| 0) (= (select .cse2 1) 0))) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse1 1) 0)) (forall ((|v_#memory_int_56| (Array Int (Array Int Int)))) (not (= |old(#memory_int)| (store |v_#memory_int_56| |parse_expression_list_#in~str.base| (store (select |v_#memory_int_56| |parse_expression_list_#in~str.base|) 8 0))))))) [2023-04-01 04:59:54,659 INFO L899 garLoopResultBuilder]: For program point L67-6(line 67) no Hoare annotation was computed. [2023-04-01 04:59:54,659 INFO L899 garLoopResultBuilder]: For program point L63-2(lines 63 84) no Hoare annotation was computed. [2023-04-01 04:59:54,659 INFO L899 garLoopResultBuilder]: For program point parse_expression_listEXIT(lines 58 86) no Hoare annotation was computed. [2023-04-01 04:59:54,659 INFO L895 garLoopResultBuilder]: At program point L63-4(lines 63 84) the Hoare annotation is: (let ((.cse1 (= |parse_expression_list_#in~str.base| parse_expression_list_~str.base)) (.cse0 (+ |#StackHeapBarrier| 1)) (.cse2 (= parse_expression_list_~str.offset 0)) (.cse3 (= |parse_expression_list_~#str2~0.offset| 0)) (.cse4 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (not (= (select |old(#length)| 2) 43)) (< |parse_expression_list_#in~str.base| .cse0) (and (= (select |old(#valid)| |parse_expression_list_~#str2~0.base|) 0) (= |#length| (store |old(#length)| |parse_expression_list_~#str2~0.base| 2)) .cse1 .cse2 (= |#memory_int| |old(#memory_int)|) (= parse_expression_list_~start~0 0) (= (+ parse_expression_list_~j~0 1) 0) (= (+ parse_expression_list_~i~0 1) 0) (= (store |old(#valid)| |parse_expression_list_~#str2~0.base| 1) |#valid|) .cse3 (< |#StackHeapBarrier| |parse_expression_list_~#str2~0.base|)) (not (= |parse_expression_list_#in~str.offset| 0)) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select .cse4 0) 48)) (let ((.cse5 (select |#memory_int| 1))) (and .cse1 (<= .cse0 |parse_expression_list_~#str2~0.base|) .cse2 (<= 0 parse_expression_list_~i~0) (= 2 (select |#length| 1)) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= 43 (select |#length| 2)) (= (select |#valid| 2) 1) (= (select .cse5 0) 48) .cse3 (= (select .cse5 1) 0))) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse4 1) 0)) (forall ((|v_#memory_int_56| (Array Int (Array Int Int)))) (not (= |old(#memory_int)| (store |v_#memory_int_56| |parse_expression_list_#in~str.base| (store (select |v_#memory_int_56| |parse_expression_list_#in~str.base|) 8 0))))))) [2023-04-01 04:59:54,659 INFO L899 garLoopResultBuilder]: For program point L63-5(lines 63 84) no Hoare annotation was computed. [2023-04-01 04:59:54,660 INFO L895 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: (let ((.cse0 (+ |#StackHeapBarrier| 1)) (.cse2 (select |old(#memory_int)| 1))) (or (not (= (select |old(#valid)| 2) 1)) (not (= (select |old(#valid)| 1) 1)) (not (= |#NULL.offset| 0)) (not (= (select |old(#length)| 2) 43)) (< |parse_expression_list_#in~str.base| .cse0) (let ((.cse1 (select |#memory_int| 1))) (and (< parse_expression_list_~j~0 (+ parse_expression_list_~start~0 1)) (= |parse_expression_list_#in~str.base| parse_expression_list_~str.base) (<= .cse0 |parse_expression_list_~#str2~0.base|) (= parse_expression_list_~str.offset 0) (<= 0 parse_expression_list_~i~0) (<= parse_expression_list_~start~0 parse_expression_list_~j~0) (= 2 (select |#length| 1)) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= 43 (select |#length| 2)) (= (select |#valid| 2) 1) (= (select .cse1 0) 48) (= |parse_expression_list_~#str2~0.offset| 0) (= (select .cse1 1) 0))) (not (= |parse_expression_list_#in~str.offset| 0)) (not (= |#NULL.base| 0)) (not (= (select |old(#length)| 1) 2)) (not (= (select .cse2 0) 48)) (not (= (select |old(#valid)| 0) 0)) (<= |#StackHeapBarrier| 0) (not (= (select .cse2 1) 0)) (forall ((|v_#memory_int_56| (Array Int (Array Int Int)))) (not (= |old(#memory_int)| (store |v_#memory_int_56| |parse_expression_list_#in~str.base| (store (select |v_#memory_int_56| |parse_expression_list_#in~str.base|) 8 0))))))) [2023-04-01 04:59:54,660 INFO L899 garLoopResultBuilder]: For program point L76-1(line 76) no Hoare annotation was computed. [2023-04-01 04:59:54,660 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2023-04-01 04:59:54,660 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-01 04:59:54,660 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-01 04:59:54,660 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= 2 (select |#length| 1)) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= 43 (select |#length| 2)) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2023-04-01 04:59:54,660 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-01 04:59:54,660 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 04:59:54,660 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2023-04-01 04:59:54,660 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2023-04-01 04:59:54,660 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 19) no Hoare annotation was computed. [2023-04-01 04:59:54,660 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 19) no Hoare annotation was computed. [2023-04-01 04:59:54,660 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 19) the Hoare annotation is: true [2023-04-01 04:59:54,660 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2023-04-01 04:59:54,662 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-04-01 04:59:54,664 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 04:59:54,669 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,669 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,675 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,675 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,676 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,676 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,677 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,677 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,678 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,678 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,679 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,679 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 04:59:54 BoogieIcfgContainer [2023-04-01 04:59:54,680 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 04:59:54,681 INFO L158 Benchmark]: Toolchain (without parser) took 15457.86ms. Allocated memory was 367.0MB in the beginning and 528.5MB in the end (delta: 161.5MB). Free memory was 325.4MB in the beginning and 352.4MB in the end (delta: -27.0MB). Peak memory consumption was 309.6MB. Max. memory is 8.0GB. [2023-04-01 04:59:54,681 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 217.1MB. Free memory is still 162.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 04:59:54,681 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.90ms. Allocated memory is still 367.0MB. Free memory was 325.4MB in the beginning and 313.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-04-01 04:59:54,681 INFO L158 Benchmark]: Boogie Preprocessor took 25.99ms. Allocated memory is still 367.0MB. Free memory was 313.9MB in the beginning and 311.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-01 04:59:54,682 INFO L158 Benchmark]: RCFGBuilder took 433.94ms. Allocated memory is still 367.0MB. Free memory was 311.3MB in the beginning and 288.7MB in the end (delta: 22.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-04-01 04:59:54,682 INFO L158 Benchmark]: TraceAbstraction took 14807.24ms. Allocated memory was 367.0MB in the beginning and 528.5MB in the end (delta: 161.5MB). Free memory was 288.2MB in the beginning and 352.4MB in the end (delta: -64.2MB). Peak memory consumption was 271.9MB. Max. memory is 8.0GB. [2023-04-01 04:59:54,683 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 217.1MB. Free memory is still 162.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 186.90ms. Allocated memory is still 367.0MB. Free memory was 325.4MB in the beginning and 313.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.99ms. Allocated memory is still 367.0MB. Free memory was 313.9MB in the beginning and 311.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 433.94ms. Allocated memory is still 367.0MB. Free memory was 311.3MB in the beginning and 288.7MB in the end (delta: 22.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 14807.24ms. Allocated memory was 367.0MB in the beginning and 528.5MB in the end (delta: 161.5MB). Free memory was 288.2MB in the beginning and 352.4MB in the end (delta: -64.2MB). Peak memory consumption was 271.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.7s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 482 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 482 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 102 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1442 IncrementalHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 102 mSolverCounterUnsat, 45 mSDtfsCounter, 1442 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 352 GetRequests, 210 SyntacticMatches, 8 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2035 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=3, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 56 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 26 PreInvPairs, 44 NumberOfFragments, 1194 HoareAnnotationTreeSize, 26 FomulaSimplifications, 3712 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 14 FomulaSimplificationsInter, 2867 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 213 NumberOfCodeBlocks, 213 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 297 ConstructedInterpolants, 0 QuantifiedInterpolants, 335 SizeOfPredicates, 0 NumberOfNonLiveVariables, 496 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 18/27 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: OVERALL_TIME: 1.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 16, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 81, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 92, TOOLS_POST_TIME: 0.9s, TOOLS_POST_CALL_APPLICATIONS: 23, TOOLS_POST_CALL_TIME: 0.2s, TOOLS_POST_RETURN_APPLICATIONS: 10, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 125, TOOLS_QUANTIFIERELIM_TIME: 1.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 245, FLUID_YES_ANSWERS: 4, DOMAIN_JOIN_APPLICATIONS: 17, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 4, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 6, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 12, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 81, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 6, LOOP_SUMMARIZER_CACHE_MISSES: 6, LOOP_SUMMARIZER_OVERALL_TIME: 0.4s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.4s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 12, CALL_SUMMARIZER_APPLICATIONS: 10, CALL_SUMMARIZER_CACHE_MISSES: 5, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 1042, DAG_COMPRESSION_RETAINED_NODES: 273, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 67]: Loop Invariant [2023-04-01 04:59:54,689 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,689 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,691 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,691 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] Derived loop invariant: ((((((((((((!(\old(\valid)[2] == 1) || !(\old(\valid)[1] == 1)) || !(#NULL == 0)) || !(\old(unknown-#length-unknown)[2] == 43)) || str < unknown-#StackHeapBarrier-unknown + 1) || !(str == 0)) || !(#NULL == 0)) || !(\old(unknown-#length-unknown)[1] == 2)) || !(\old(unknown-#memory_int-unknown)[1][0] == 48)) || (((((((((((str == str && unknown-#StackHeapBarrier-unknown + 1 <= str2) && str == 0) && 0 <= i) && 2 == unknown-#length-unknown[1]) && \valid[1] == 1) && \valid[0] == 0) && 43 == unknown-#length-unknown[2]) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && str2 == 0) && unknown-#memory_int-unknown[1][1] == 0)) || !(\old(\valid)[0] == 0)) || unknown-#StackHeapBarrier-unknown <= 0) || !(\old(unknown-#memory_int-unknown)[1][1] == 0)) || (forall v_#memory_int_56 : [int,int]int :: !(\old(unknown-#memory_int-unknown) == v_#memory_int_56[str := v_#memory_int_56[str][8 := 0]])) - InvariantResult [Line: 70]: Loop Invariant [2023-04-01 04:59:54,692 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,692 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,692 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,692 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] Derived loop invariant: ((((((((((((!(\old(\valid)[2] == 1) || !(\old(\valid)[1] == 1)) || !(#NULL == 0)) || !(\old(unknown-#length-unknown)[2] == 43)) || str < unknown-#StackHeapBarrier-unknown + 1) || !(str == 0)) || !(#NULL == 0)) || !(\old(unknown-#length-unknown)[1] == 2)) || !(\old(unknown-#memory_int-unknown)[1][0] == 48)) || (((((((((((str == str && unknown-#StackHeapBarrier-unknown + 1 <= str2) && str == 0) && 0 <= i) && 2 == unknown-#length-unknown[1]) && \valid[1] == 1) && \valid[0] == 0) && 43 == unknown-#length-unknown[2]) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && str2 == 0) && unknown-#memory_int-unknown[1][1] == 0)) || !(\old(\valid)[0] == 0)) || unknown-#StackHeapBarrier-unknown <= 0) || !(\old(unknown-#memory_int-unknown)[1][1] == 0)) || (forall v_#memory_int_56 : [int,int]int :: !(\old(unknown-#memory_int-unknown) == v_#memory_int_56[str := v_#memory_int_56[str][8 := 0]])) - InvariantResult [Line: 63]: Loop Invariant [2023-04-01 04:59:54,693 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,693 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,693 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] [2023-04-01 04:59:54,693 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_int_56,QUANTIFIED] Derived loop invariant: (((((((((((((!(\old(\valid)[2] == 1) || !(\old(\valid)[1] == 1)) || !(#NULL == 0)) || !(\old(unknown-#length-unknown)[2] == 43)) || str < unknown-#StackHeapBarrier-unknown + 1) || ((((((((((\old(\valid)[str2] == 0 && unknown-#length-unknown == \old(unknown-#length-unknown)[str2 := 2]) && str == str) && str == 0) && unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown)) && start == 0) && j + 1 == 0) && i + 1 == 0) && \old(\valid)[str2 := 1] == \valid) && str2 == 0) && unknown-#StackHeapBarrier-unknown < str2)) || !(str == 0)) || !(#NULL == 0)) || !(\old(unknown-#length-unknown)[1] == 2)) || !(\old(unknown-#memory_int-unknown)[1][0] == 48)) || (((((((((((str == str && unknown-#StackHeapBarrier-unknown + 1 <= str2) && str == 0) && 0 <= i) && 2 == unknown-#length-unknown[1]) && \valid[1] == 1) && \valid[0] == 0) && 43 == unknown-#length-unknown[2]) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && str2 == 0) && unknown-#memory_int-unknown[1][1] == 0)) || !(\old(\valid)[0] == 0)) || unknown-#StackHeapBarrier-unknown <= 0) || !(\old(unknown-#memory_int-unknown)[1][1] == 0)) || (forall v_#memory_int_56 : [int,int]int :: !(\old(unknown-#memory_int-unknown) == v_#memory_int_56[str := v_#memory_int_56[str][8 := 0]])) - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: (((((((((!(\old(\valid)[2] == 1) || !(\old(\valid)[1] == 1)) || !(#NULL == 0)) || !(\old(unknown-#length-unknown)[2] == 43)) || !(#NULL == 0)) || !(\old(unknown-#length-unknown)[1] == 2)) || !(\old(unknown-#memory_int-unknown)[1][0] == 48)) || (((((((((0 <= i && unknown-#StackHeapBarrier-unknown + 1 <= A) && 2 == unknown-#length-unknown[1]) && A == 0) && \valid[1] == 1) && \valid[0] == 0) && 43 == unknown-#length-unknown[2]) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0)) || !(\old(\valid)[0] == 0)) || unknown-#StackHeapBarrier-unknown <= 0) || !(\old(unknown-#memory_int-unknown)[1][1] == 0) RESULT: Ultimate proved your program to be correct! [2023-04-01 04:59:54,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...