/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/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/heap-data/shared_mem2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 00:14:57,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 00:14:57,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 00:14:57,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 00:14:57,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 00:14:57,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 00:14:57,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 00:14:57,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 00:14:57,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 00:14:57,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 00:14:57,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 00:14:57,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 00:14:57,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 00:14:57,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 00:14:57,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 00:14:57,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 00:14:57,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 00:14:57,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 00:14:57,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 00:14:57,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 00:14:57,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 00:14:57,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 00:14:57,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 00:14:57,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 00:14:57,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 00:14:57,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 00:14:57,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 00:14:57,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 00:14:57,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 00:14:57,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 00:14:57,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 00:14:57,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 00:14:57,298 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 00:14:57,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 00:14:57,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 00:14:57,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 00:14:57,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 00:14:57,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 00:14:57,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 00:14:57,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 00:14:57,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 00:14:57,303 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-31 00:14:57,328 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 00:14:57,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 00:14:57,328 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 00:14:57,328 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 00:14:57,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 00:14:57,331 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 00:14:57,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 00:14:57,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 00:14:57,332 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 00:14:57,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 00:14:57,333 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 00:14:57,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 00:14:57,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 00:14:57,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 00:14:57,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 00:14:57,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 00:14:57,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 00:14:57,333 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 00:14:57,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 00:14:57,334 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 00:14:57,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 00:14:57,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 00:14:57,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 00:14:57,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 00:14:57,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:14:57,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 00:14:57,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 00:14:57,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 00:14:57,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 00:14:57,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 00:14:57,335 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 00:14:57,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 00:14:57,335 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 00:14:57,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 00:14:57,335 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 00:14:57,335 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 00:14:57,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 00:14:57,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 00:14:57,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 00:14:57,548 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 00:14:57,549 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 00:14:57,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/heap-data/shared_mem2.i [2023-03-31 00:14:58,700 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 00:14:58,874 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 00:14:58,874 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/heap-data/shared_mem2.i [2023-03-31 00:14:58,882 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ce10a541/12f95807604e40928106a4c85e15df7c/FLAGe4d8de711 [2023-03-31 00:14:58,892 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ce10a541/12f95807604e40928106a4c85e15df7c [2023-03-31 00:14:58,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 00:14:58,895 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 00:14:58,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 00:14:58,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 00:14:58,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 00:14:58,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:14:58" (1/1) ... [2023-03-31 00:14:58,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46872b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:14:58, skipping insertion in model container [2023-03-31 00:14:58,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:14:58" (1/1) ... [2023-03-31 00:14:58,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 00:14:58,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 00:14:59,142 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/heap-data/shared_mem2.i[23827,23840] [2023-03-31 00:14:59,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:14:59,157 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 00:14:59,194 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/heap-data/shared_mem2.i[23827,23840] [2023-03-31 00:14:59,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:14:59,220 INFO L208 MainTranslator]: Completed translation [2023-03-31 00:14:59,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:14:59 WrapperNode [2023-03-31 00:14:59,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 00:14:59,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 00:14:59,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 00:14:59,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 00:14:59,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:14:59" (1/1) ... [2023-03-31 00:14:59,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:14:59" (1/1) ... [2023-03-31 00:14:59,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:14:59" (1/1) ... [2023-03-31 00:14:59,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:14:59" (1/1) ... [2023-03-31 00:14:59,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:14:59" (1/1) ... [2023-03-31 00:14:59,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:14:59" (1/1) ... [2023-03-31 00:14:59,277 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:14:59" (1/1) ... [2023-03-31 00:14:59,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:14:59" (1/1) ... [2023-03-31 00:14:59,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 00:14:59,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 00:14:59,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 00:14:59,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 00:14:59,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:14:59" (1/1) ... [2023-03-31 00:14:59,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:14:59,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:14:59,318 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) [2023-03-31 00:14:59,335 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 [2023-03-31 00:14:59,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 00:14:59,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 00:14:59,345 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 00:14:59,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2023-03-31 00:14:59,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2023-03-31 00:14:59,346 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 00:14:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 00:14:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 00:14:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 00:14:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-03-31 00:14:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-03-31 00:14:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 00:14:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 00:14:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2023-03-31 00:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2023-03-31 00:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2023-03-31 00:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2023-03-31 00:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2023-03-31 00:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2023-03-31 00:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2023-03-31 00:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2023-03-31 00:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2023-03-31 00:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2023-03-31 00:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-03-31 00:14:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-03-31 00:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2023-03-31 00:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2023-03-31 00:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-03-31 00:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-03-31 00:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2023-03-31 00:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2023-03-31 00:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure select [2023-03-31 00:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2023-03-31 00:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2023-03-31 00:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2023-03-31 00:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2023-03-31 00:14:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-03-31 00:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2023-03-31 00:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2023-03-31 00:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2023-03-31 00:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2023-03-31 00:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2023-03-31 00:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2023-03-31 00:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2023-03-31 00:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2023-03-31 00:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2023-03-31 00:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2023-03-31 00:14:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2023-03-31 00:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2023-03-31 00:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2023-03-31 00:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2023-03-31 00:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2023-03-31 00:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2023-03-31 00:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2023-03-31 00:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2023-03-31 00:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2023-03-31 00:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2023-03-31 00:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2023-03-31 00:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2023-03-31 00:14:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2023-03-31 00:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2023-03-31 00:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2023-03-31 00:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2023-03-31 00:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2023-03-31 00:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2023-03-31 00:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 00:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-03-31 00:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2023-03-31 00:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 00:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2023-03-31 00:14:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2023-03-31 00:14:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2023-03-31 00:14:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2023-03-31 00:14:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2023-03-31 00:14:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2023-03-31 00:14:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2023-03-31 00:14:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2023-03-31 00:14:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 00:14:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2023-03-31 00:14:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2023-03-31 00:14:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2023-03-31 00:14:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2023-03-31 00:14:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2023-03-31 00:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2023-03-31 00:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2023-03-31 00:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2023-03-31 00:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2023-03-31 00:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2023-03-31 00:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2023-03-31 00:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure system [2023-03-31 00:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2023-03-31 00:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2023-03-31 00:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2023-03-31 00:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2023-03-31 00:14:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2023-03-31 00:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2023-03-31 00:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure div [2023-03-31 00:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2023-03-31 00:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2023-03-31 00:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2023-03-31 00:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2023-03-31 00:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2023-03-31 00:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2023-03-31 00:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2023-03-31 00:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2023-03-31 00:14:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2023-03-31 00:14:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2023-03-31 00:14:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2023-03-31 00:14:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2023-03-31 00:14:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2023-03-31 00:14:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2023-03-31 00:14:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2023-03-31 00:14:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2023-03-31 00:14:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2023-03-31 00:14:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2023-03-31 00:14:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2023-03-31 00:14:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2023-03-31 00:14:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 00:14:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 00:14:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 00:14:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 00:14:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 00:14:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 00:14:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 00:14:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 00:14:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 00:14:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 00:14:59,541 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 00:14:59,542 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 00:14:59,682 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 00:14:59,686 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 00:14:59,686 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-03-31 00:14:59,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:14:59 BoogieIcfgContainer [2023-03-31 00:14:59,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 00:14:59,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 00:14:59,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 00:14:59,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 00:14:59,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 12:14:58" (1/3) ... [2023-03-31 00:14:59,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f94d257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:14:59, skipping insertion in model container [2023-03-31 00:14:59,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:14:59" (2/3) ... [2023-03-31 00:14:59,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f94d257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:14:59, skipping insertion in model container [2023-03-31 00:14:59,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:14:59" (3/3) ... [2023-03-31 00:14:59,693 INFO L112 eAbstractionObserver]: Analyzing ICFG shared_mem2.i [2023-03-31 00:14:59,706 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 00:14:59,706 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 00:14:59,737 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 00:14:59,742 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=PETRI_NET, 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;@3ad194db, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 00:14:59,742 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 00:14:59,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-31 00:14:59,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-03-31 00:14:59,749 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:14:59,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:14:59,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:14:59,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:14:59,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1812592180, now seen corresponding path program 1 times [2023-03-31 00:14:59,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:14:59,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472814026] [2023-03-31 00:14:59,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:14:59,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:14:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:14:59,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:14:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:14:59,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:14:59,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:14:59,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472814026] [2023-03-31 00:14:59,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472814026] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:14:59,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:14:59,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-31 00:14:59,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875995535] [2023-03-31 00:14:59,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:14:59,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 00:14:59,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:14:59,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 00:14:59,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 00:14:59,962 INFO L87 Difference]: Start difference. First operand has 22 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 00:15:00,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:15:00,038 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2023-03-31 00:15:00,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 00:15:00,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-03-31 00:15:00,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:15:00,045 INFO L225 Difference]: With dead ends: 35 [2023-03-31 00:15:00,046 INFO L226 Difference]: Without dead ends: 18 [2023-03-31 00:15:00,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 00:15:00,051 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 18 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:15:00,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 10 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 00:15:00,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-03-31 00:15:00,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-03-31 00:15:00,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 00:15:00,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2023-03-31 00:15:00,089 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 12 [2023-03-31 00:15:00,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:15:00,089 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2023-03-31 00:15:00,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 00:15:00,089 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-03-31 00:15:00,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-03-31 00:15:00,090 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:15:00,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:15:00,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 00:15:00,090 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:15:00,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:15:00,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1945379203, now seen corresponding path program 1 times [2023-03-31 00:15:00,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:15:00,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005930825] [2023-03-31 00:15:00,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:15:00,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:15:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:15:00,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:15:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:15:00,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:15:00,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:15:00,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005930825] [2023-03-31 00:15:00,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005930825] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:15:00,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:15:00,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 00:15:00,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931288098] [2023-03-31 00:15:00,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:15:00,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 00:15:00,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:15:00,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 00:15:00,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-03-31 00:15:00,417 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 00:15:00,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:15:00,547 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2023-03-31 00:15:00,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 00:15:00,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-03-31 00:15:00,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:15:00,548 INFO L225 Difference]: With dead ends: 30 [2023-03-31 00:15:00,548 INFO L226 Difference]: Without dead ends: 26 [2023-03-31 00:15:00,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-03-31 00:15:00,556 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 33 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:15:00,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 20 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 00:15:00,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-03-31 00:15:00,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-03-31 00:15:00,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 00:15:00,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2023-03-31 00:15:00,570 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 14 [2023-03-31 00:15:00,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:15:00,570 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2023-03-31 00:15:00,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 00:15:00,570 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2023-03-31 00:15:00,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-03-31 00:15:00,571 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:15:00,571 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:15:00,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 00:15:00,571 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:15:00,572 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:15:00,572 INFO L85 PathProgramCache]: Analyzing trace with hash -814778558, now seen corresponding path program 1 times [2023-03-31 00:15:00,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:15:00,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311281196] [2023-03-31 00:15:00,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:15:00,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:15:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:15:00,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:15:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:15:00,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:15:00,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:15:00,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311281196] [2023-03-31 00:15:00,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311281196] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:15:00,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930982654] [2023-03-31 00:15:00,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:15:00,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:15:00,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:15:00,969 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) [2023-03-31 00:15:00,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 00:15:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:15:01,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 25 conjunts are in the unsatisfiable core [2023-03-31 00:15:01,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:15:01,198 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-03-31 00:15:01,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-03-31 00:15:01,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-03-31 00:15:01,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-03-31 00:15:01,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 00:15:01,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 00:15:01,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2023-03-31 00:15:01,315 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-03-31 00:15:01,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-03-31 00:15:01,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:15:01,349 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 00:15:01,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:15:01,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930982654] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 00:15:01,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 00:15:01,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 7] total 14 [2023-03-31 00:15:01,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306807673] [2023-03-31 00:15:01,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 00:15:01,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 00:15:01,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:15:01,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 00:15:01,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-03-31 00:15:01,485 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 14 states, 14 states have (on average 2.5) internal successors, (35), 13 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 00:15:01,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:15:01,690 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2023-03-31 00:15:01,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 00:15:01,691 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 13 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-03-31 00:15:01,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:15:01,693 INFO L225 Difference]: With dead ends: 42 [2023-03-31 00:15:01,693 INFO L226 Difference]: Without dead ends: 38 [2023-03-31 00:15:01,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2023-03-31 00:15:01,694 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 43 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:15:01,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 29 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 00:15:01,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-03-31 00:15:01,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 22. [2023-03-31 00:15:01,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 00:15:01,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2023-03-31 00:15:01,698 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 17 [2023-03-31 00:15:01,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:15:01,698 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2023-03-31 00:15:01,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 13 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 00:15:01,699 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2023-03-31 00:15:01,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-03-31 00:15:01,699 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:15:01,699 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:15:01,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-31 00:15:01,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:15:01,905 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:15:01,906 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:15:01,906 INFO L85 PathProgramCache]: Analyzing trace with hash -379217452, now seen corresponding path program 1 times [2023-03-31 00:15:01,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:15:01,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317301815] [2023-03-31 00:15:01,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:15:01,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:15:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:15:02,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:15:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:15:02,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:15:02,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:15:02,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317301815] [2023-03-31 00:15:02,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317301815] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:15:02,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531889300] [2023-03-31 00:15:02,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:15:02,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:15:02,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:15:02,302 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) [2023-03-31 00:15:02,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 00:15:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:15:02,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 31 conjunts are in the unsatisfiable core [2023-03-31 00:15:02,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:15:02,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2023-03-31 00:15:02,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2023-03-31 00:15:02,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 41 [2023-03-31 00:15:02,549 INFO L321 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2023-03-31 00:15:02,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 37 [2023-03-31 00:15:02,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-03-31 00:15:02,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-03-31 00:15:02,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:15:02,681 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 00:15:02,827 INFO L321 Elim1Store]: treesize reduction 23, result has 60.3 percent of original size [2023-03-31 00:15:02,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 92 [2023-03-31 00:15:02,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:15:02,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531889300] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 00:15:02,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 00:15:02,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 21 [2023-03-31 00:15:02,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574664956] [2023-03-31 00:15:02,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 00:15:02,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-03-31 00:15:02,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:15:02,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-03-31 00:15:02,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2023-03-31 00:15:02,962 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 21 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 20 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 00:15:03,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:15:03,908 INFO L93 Difference]: Finished difference Result 59 states and 76 transitions. [2023-03-31 00:15:03,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-03-31 00:15:03,909 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 20 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-03-31 00:15:03,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:15:03,909 INFO L225 Difference]: With dead ends: 59 [2023-03-31 00:15:03,909 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 00:15:03,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=361, Invalid=1361, Unknown=0, NotChecked=0, Total=1722 [2023-03-31 00:15:03,915 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 165 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 00:15:03,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 71 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 00:15:03,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 00:15:03,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 00:15:03,918 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) [2023-03-31 00:15:03,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 00:15:03,918 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2023-03-31 00:15:03,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:15:03,918 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 00:15:03,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 20 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 00:15:03,919 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 00:15:03,919 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 00:15:03,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 00:15:03,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-31 00:15:04,127 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,SelfDestructingSolverStorable3 [2023-03-31 00:15:04,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 00:15:04,223 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 13) no Hoare annotation was computed. [2023-03-31 00:15:04,224 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2023-03-31 00:15:04,225 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 13) no Hoare annotation was computed. [2023-03-31 00:15:04,226 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 75 79) no Hoare annotation was computed. [2023-03-31 00:15:04,227 INFO L899 garLoopResultBuilder]: For program point __bswap_32FINAL(lines 75 79) no Hoare annotation was computed. [2023-03-31 00:15:04,227 INFO L899 garLoopResultBuilder]: For program point __bswap_32EXIT(lines 75 79) no Hoare annotation was computed. [2023-03-31 00:15:04,227 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2023-03-31 00:15:04,227 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|)) [2023-03-31 00:15:04,227 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 00:15:04,227 INFO L899 garLoopResultBuilder]: For program point L601(line 601) no Hoare annotation was computed. [2023-03-31 00:15:04,227 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 576 602) no Hoare annotation was computed. [2023-03-31 00:15:04,227 INFO L899 garLoopResultBuilder]: For program point L595-1(lines 595 599) no Hoare annotation was computed. [2023-03-31 00:15:04,227 INFO L895 garLoopResultBuilder]: At program point L595-3(lines 595 599) the Hoare annotation is: (and (= main_~m~0.offset 0) (<= (select (select |#memory_int| main_~m~0.base) 0) 100)) [2023-03-31 00:15:04,227 INFO L899 garLoopResultBuilder]: For program point L595-4(lines 595 599) no Hoare annotation was computed. [2023-03-31 00:15:04,227 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 576 602) the Hoare annotation is: true [2023-03-31 00:15:04,227 INFO L899 garLoopResultBuilder]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 601) no Hoare annotation was computed. [2023-03-31 00:15:04,227 INFO L899 garLoopResultBuilder]: For program point L600(lines 600 601) no Hoare annotation was computed. [2023-03-31 00:15:04,227 INFO L899 garLoopResultBuilder]: For program point L600-2(lines 576 602) no Hoare annotation was computed. [2023-03-31 00:15:04,227 INFO L899 garLoopResultBuilder]: For program point L596(lines 596 597) no Hoare annotation was computed. [2023-03-31 00:15:04,227 INFO L899 garLoopResultBuilder]: For program point L596-2(lines 596 597) no Hoare annotation was computed. [2023-03-31 00:15:04,228 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 592) no Hoare annotation was computed. [2023-03-31 00:15:04,228 INFO L895 garLoopResultBuilder]: At program point L586-2(lines 584 593) the Hoare annotation is: (and (= main_~head~0.offset 0) (not (= main_~m~0.base main_~head~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~head~0.base) 4) 0) (not (= main_~m~0.base main_~list~0.base)) (= (select (select |#memory_$Pointer$.base| main_~head~0.base) 4) main_~m~0.base) (= main_~m~0.offset 0) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) 4) main_~m~0.base) (= main_~list~0.offset 0) (= (select |#valid| main_~list~0.base) 1) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) 4) 0) (= (select |#valid| main_~m~0.base) 1) (= (select (select |#memory_int| main_~m~0.base) 0) 0)) [2023-03-31 00:15:04,228 INFO L899 garLoopResultBuilder]: For program point L584-1(lines 584 593) no Hoare annotation was computed. [2023-03-31 00:15:04,228 INFO L899 garLoopResultBuilder]: For program point L584-3(lines 584 593) no Hoare annotation was computed. [2023-03-31 00:15:04,228 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 80 84) no Hoare annotation was computed. [2023-03-31 00:15:04,228 INFO L899 garLoopResultBuilder]: For program point __bswap_64FINAL(lines 80 84) no Hoare annotation was computed. [2023-03-31 00:15:04,228 INFO L899 garLoopResultBuilder]: For program point __bswap_64EXIT(lines 80 84) no Hoare annotation was computed. [2023-03-31 00:15:04,228 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 00:15:04,228 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2023-03-31 00:15:04,228 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 00:15:04,228 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 00:15:04,233 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-03-31 00:15:04,234 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 00:15:04,244 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-03-31 00:15:04,245 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:15:04,246 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:15:04,247 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-03-31 00:15:04,251 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-03-31 00:15:04,253 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:15:04,253 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:15:04,253 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-03-31 00:15:04,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 12:15:04 BoogieIcfgContainer [2023-03-31 00:15:04,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 00:15:04,256 INFO L158 Benchmark]: Toolchain (without parser) took 5360.73ms. Allocated memory was 383.8MB in the beginning and 521.1MB in the end (delta: 137.4MB). Free memory was 324.7MB in the beginning and 301.9MB in the end (delta: 22.8MB). Peak memory consumption was 161.2MB. Max. memory is 8.0GB. [2023-03-31 00:15:04,256 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 194.0MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 00:15:04,256 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.48ms. Allocated memory is still 383.8MB. Free memory was 324.4MB in the beginning and 307.9MB in the end (delta: 16.5MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-03-31 00:15:04,257 INFO L158 Benchmark]: Boogie Preprocessor took 60.31ms. Allocated memory is still 383.8MB. Free memory was 307.9MB in the beginning and 305.2MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-03-31 00:15:04,257 INFO L158 Benchmark]: RCFGBuilder took 405.74ms. Allocated memory is still 383.8MB. Free memory was 305.2MB in the beginning and 338.5MB in the end (delta: -33.2MB). Peak memory consumption was 16.1MB. Max. memory is 8.0GB. [2023-03-31 00:15:04,257 INFO L158 Benchmark]: TraceAbstraction took 4566.22ms. Allocated memory was 383.8MB in the beginning and 521.1MB in the end (delta: 137.4MB). Free memory was 338.0MB in the beginning and 301.9MB in the end (delta: 36.1MB). Peak memory consumption was 173.4MB. Max. memory is 8.0GB. [2023-03-31 00:15:04,258 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 194.0MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 324.48ms. Allocated memory is still 383.8MB. Free memory was 324.4MB in the beginning and 307.9MB in the end (delta: 16.5MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 60.31ms. Allocated memory is still 383.8MB. Free memory was 307.9MB in the beginning and 305.2MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 405.74ms. Allocated memory is still 383.8MB. Free memory was 305.2MB in the beginning and 338.5MB in the end (delta: -33.2MB). Peak memory consumption was 16.1MB. Max. memory is 8.0GB. * TraceAbstraction took 4566.22ms. Allocated memory was 383.8MB in the beginning and 521.1MB in the end (delta: 137.4MB). Free memory was 338.0MB in the beginning and 301.9MB in the end (delta: 36.1MB). Peak memory consumption was 173.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * 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: 601]: 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 6 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 259 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 259 mSDsluCounter, 130 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 108 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 412 IncrementalHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 22 mSDtfsCounter, 412 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=2, InterpolantAutomatonStates: 40, 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, 16 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 14 NumberOfFragments, 84 HoareAnnotationTreeSize, 6 FomulaSimplifications, 212 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 378 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 123 ConstructedInterpolants, 4 QuantifiedInterpolants, 1119 SizeOfPredicates, 15 NumberOfNonLiveVariables, 357 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 0/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant [2023-03-31 00:15:04,266 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-03-31 00:15:04,267 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:15:04,267 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:15:04,267 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-03-31 00:15:04,269 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-03-31 00:15:04,269 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:15:04,274 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:15:04,274 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: ((((((((((head == 0 && !(m == head)) && #memory_$Pointer$[head][4] == 0) && !(m == list)) && #memory_$Pointer$[head][4] == m) && m == 0) && #memory_$Pointer$[list][4] == m) && list == 0) && \valid[list] == 1) && #memory_$Pointer$[list][4] == 0) && \valid[m] == 1) && unknown-#memory_int-unknown[m][0] == 0 - InvariantResult [Line: 595]: Loop Invariant Derived loop invariant: m == 0 && unknown-#memory_int-unknown[m][0] <= 100 RESULT: Ultimate proved your program to be correct! [2023-03-31 00:15:04,299 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...