/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/list-simple/dll2n_append_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 00:12:33,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 00:12:33,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 00:12:33,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 00:12:33,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 00:12:33,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 00:12:33,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 00:12:33,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 00:12:33,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 00:12:33,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 00:12:33,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 00:12:33,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 00:12:33,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 00:12:33,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 00:12:33,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 00:12:33,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 00:12:33,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 00:12:33,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 00:12:33,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 00:12:33,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 00:12:33,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 00:12:33,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 00:12:33,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 00:12:33,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 00:12:33,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 00:12:33,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 00:12:33,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 00:12:33,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 00:12:33,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 00:12:33,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 00:12:33,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 00:12:33,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 00:12:33,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 00:12:33,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 00:12:33,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 00:12:33,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 00:12:33,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 00:12:33,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 00:12:33,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 00:12:33,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 00:12:33,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 00:12:33,153 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 00:12:33,182 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 00:12:33,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 00:12:33,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 00:12:33,183 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 00:12:33,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 00:12:33,184 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 00:12:33,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 00:12:33,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 00:12:33,185 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 00:12:33,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 00:12:33,186 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 00:12:33,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 00:12:33,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 00:12:33,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 00:12:33,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 00:12:33,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 00:12:33,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 00:12:33,186 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 00:12:33,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 00:12:33,187 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 00:12:33,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 00:12:33,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 00:12:33,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 00:12:33,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 00:12:33,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:12:33,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 00:12:33,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 00:12:33,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 00:12:33,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 00:12:33,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 00:12:33,188 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 00:12:33,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 00:12:33,189 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 00:12:33,189 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 00:12:33,189 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 00:12:33,189 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 00:12:33,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 00:12:33,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 00:12:33,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 00:12:33,465 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 00:12:33,465 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 00:12:33,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2n_append_unequal.i [2023-03-31 00:12:34,631 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 00:12:34,859 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 00:12:34,859 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2n_append_unequal.i [2023-03-31 00:12:34,873 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93aa2618f/001a2982628b405492df5417aeff6982/FLAGd2e4eaa07 [2023-03-31 00:12:34,891 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93aa2618f/001a2982628b405492df5417aeff6982 [2023-03-31 00:12:34,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 00:12:34,896 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 00:12:34,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 00:12:34,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 00:12:34,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 00:12:34,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:12:34" (1/1) ... [2023-03-31 00:12:34,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef4dd71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:12:34, skipping insertion in model container [2023-03-31 00:12:34,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:12:34" (1/1) ... [2023-03-31 00:12:34,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 00:12:34,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 00:12:35,221 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/list-simple/dll2n_append_unequal.i[24457,24470] [2023-03-31 00:12:35,225 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:12:35,234 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 00:12:35,267 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/list-simple/dll2n_append_unequal.i[24457,24470] [2023-03-31 00:12:35,268 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:12:35,305 INFO L208 MainTranslator]: Completed translation [2023-03-31 00:12:35,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:12:35 WrapperNode [2023-03-31 00:12:35,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 00:12:35,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 00:12:35,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 00:12:35,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 00:12:35,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:12:35" (1/1) ... [2023-03-31 00:12:35,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:12:35" (1/1) ... [2023-03-31 00:12:35,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:12:35" (1/1) ... [2023-03-31 00:12:35,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:12:35" (1/1) ... [2023-03-31 00:12:35,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:12:35" (1/1) ... [2023-03-31 00:12:35,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:12:35" (1/1) ... [2023-03-31 00:12:35,370 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:12:35" (1/1) ... [2023-03-31 00:12:35,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:12:35" (1/1) ... [2023-03-31 00:12:35,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 00:12:35,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 00:12:35,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 00:12:35,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 00:12:35,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:12:35" (1/1) ... [2023-03-31 00:12:35,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:12:35,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:12:35,420 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 00:12:35,422 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 00:12:35,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 00:12:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 00:12:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 00:12:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2023-03-31 00:12:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2023-03-31 00:12:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2023-03-31 00:12:35,449 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2023-03-31 00:12:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2023-03-31 00:12:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2023-03-31 00:12:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_append [2023-03-31 00:12:35,450 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 00:12:35,450 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 00:12:35,450 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 00:12:35,450 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-03-31 00:12:35,450 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-03-31 00:12:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 00:12:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 00:12:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2023-03-31 00:12:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2023-03-31 00:12:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2023-03-31 00:12:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2023-03-31 00:12:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2023-03-31 00:12:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2023-03-31 00:12:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2023-03-31 00:12:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2023-03-31 00:12:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2023-03-31 00:12:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2023-03-31 00:12:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-03-31 00:12:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-03-31 00:12:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2023-03-31 00:12:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2023-03-31 00:12:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-03-31 00:12:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-03-31 00:12:35,452 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2023-03-31 00:12:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2023-03-31 00:12:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure select [2023-03-31 00:12:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2023-03-31 00:12:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2023-03-31 00:12:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2023-03-31 00:12:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2023-03-31 00:12:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-03-31 00:12:35,453 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2023-03-31 00:12:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2023-03-31 00:12:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2023-03-31 00:12:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2023-03-31 00:12:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2023-03-31 00:12:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2023-03-31 00:12:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2023-03-31 00:12:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2023-03-31 00:12:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2023-03-31 00:12:35,454 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2023-03-31 00:12:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2023-03-31 00:12:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2023-03-31 00:12:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2023-03-31 00:12:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2023-03-31 00:12:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2023-03-31 00:12:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2023-03-31 00:12:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2023-03-31 00:12:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2023-03-31 00:12:35,455 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2023-03-31 00:12:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2023-03-31 00:12:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2023-03-31 00:12:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2023-03-31 00:12:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2023-03-31 00:12:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2023-03-31 00:12:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2023-03-31 00:12:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2023-03-31 00:12:35,456 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2023-03-31 00:12:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2023-03-31 00:12:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 00:12:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-03-31 00:12:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2023-03-31 00:12:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 00:12:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2023-03-31 00:12:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2023-03-31 00:12:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2023-03-31 00:12:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2023-03-31 00:12:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2023-03-31 00:12:35,457 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2023-03-31 00:12:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2023-03-31 00:12:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2023-03-31 00:12:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 00:12:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2023-03-31 00:12:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2023-03-31 00:12:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2023-03-31 00:12:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2023-03-31 00:12:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2023-03-31 00:12:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2023-03-31 00:12:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2023-03-31 00:12:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2023-03-31 00:12:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2023-03-31 00:12:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2023-03-31 00:12:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2023-03-31 00:12:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure system [2023-03-31 00:12:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2023-03-31 00:12:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2023-03-31 00:12:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2023-03-31 00:12:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2023-03-31 00:12:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2023-03-31 00:12:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2023-03-31 00:12:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure div [2023-03-31 00:12:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2023-03-31 00:12:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2023-03-31 00:12:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2023-03-31 00:12:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2023-03-31 00:12:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2023-03-31 00:12:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2023-03-31 00:12:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2023-03-31 00:12:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2023-03-31 00:12:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2023-03-31 00:12:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2023-03-31 00:12:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2023-03-31 00:12:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2023-03-31 00:12:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2023-03-31 00:12:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2023-03-31 00:12:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2023-03-31 00:12:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2023-03-31 00:12:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2023-03-31 00:12:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2023-03-31 00:12:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2023-03-31 00:12:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2023-03-31 00:12:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2023-03-31 00:12:35,461 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2023-03-31 00:12:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 00:12:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 00:12:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 00:12:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2023-03-31 00:12:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2023-03-31 00:12:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 00:12:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 00:12:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure dll_append [2023-03-31 00:12:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 00:12:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 00:12:35,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-03-31 00:12:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 00:12:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 00:12:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 00:12:35,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 00:12:35,697 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 00:12:35,699 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 00:12:35,753 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2023-03-31 00:12:35,935 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 00:12:35,941 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 00:12:35,941 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-03-31 00:12:35,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:12:35 BoogieIcfgContainer [2023-03-31 00:12:35,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 00:12:35,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 00:12:35,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 00:12:35,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 00:12:35,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 12:12:34" (1/3) ... [2023-03-31 00:12:35,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e54fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:12:35, skipping insertion in model container [2023-03-31 00:12:35,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:12:35" (2/3) ... [2023-03-31 00:12:35,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e54fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:12:35, skipping insertion in model container [2023-03-31 00:12:35,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:12:35" (3/3) ... [2023-03-31 00:12:35,950 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_append_unequal.i [2023-03-31 00:12:35,964 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 00:12:35,964 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 00:12:36,005 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 00:12:36,011 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;@53e18c9f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 00:12:36,011 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 00:12:36,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 40 states have internal predecessors, (55), 8 states have call successors, (8), 7 states have call predecessors, (8), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-03-31 00:12:36,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-03-31 00:12:36,022 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:12:36,023 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, 1] [2023-03-31 00:12:36,023 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:12:36,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:12:36,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1586452406, now seen corresponding path program 1 times [2023-03-31 00:12:36,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:12:36,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096487466] [2023-03-31 00:12:36,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:12:36,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:12:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:36,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:12:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:36,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:12:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:36,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:12:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:36,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:12:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:36,377 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 00:12:36,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:12:36,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096487466] [2023-03-31 00:12:36,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096487466] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:12:36,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:12:36,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-31 00:12:36,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090845539] [2023-03-31 00:12:36,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:12:36,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 00:12:36,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:12:36,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 00:12:36,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-03-31 00:12:36,414 INFO L87 Difference]: Start difference. First operand has 55 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 40 states have internal predecessors, (55), 8 states have call successors, (8), 7 states have call predecessors, (8), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-03-31 00:12:36,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:12:36,658 INFO L93 Difference]: Finished difference Result 105 states and 138 transitions. [2023-03-31 00:12:36,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 00:12:36,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2023-03-31 00:12:36,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:12:36,669 INFO L225 Difference]: With dead ends: 105 [2023-03-31 00:12:36,669 INFO L226 Difference]: Without dead ends: 47 [2023-03-31 00:12:36,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-03-31 00:12:36,679 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 72 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 00:12:36,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 7 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 00:12:36,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-03-31 00:12:36,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2023-03-31 00:12:36,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-03-31 00:12:36,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2023-03-31 00:12:36,721 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 29 [2023-03-31 00:12:36,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:12:36,722 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2023-03-31 00:12:36,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-03-31 00:12:36,722 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2023-03-31 00:12:36,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-03-31 00:12:36,725 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:12:36,725 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, 1] [2023-03-31 00:12:36,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 00:12:36,726 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:12:36,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:12:36,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1161109463, now seen corresponding path program 1 times [2023-03-31 00:12:36,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:12:36,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351925787] [2023-03-31 00:12:36,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:12:36,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:12:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:36,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:12:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:36,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:12:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:36,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:12:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:37,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:12:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:37,042 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 00:12:37,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:12:37,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351925787] [2023-03-31 00:12:37,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351925787] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:12:37,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:12:37,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 00:12:37,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660755435] [2023-03-31 00:12:37,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:12:37,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 00:12:37,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:12:37,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 00:12:37,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-03-31 00:12:37,047 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-03-31 00:12:37,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:12:37,317 INFO L93 Difference]: Finished difference Result 76 states and 92 transitions. [2023-03-31 00:12:37,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-03-31 00:12:37,318 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 29 [2023-03-31 00:12:37,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:12:37,319 INFO L225 Difference]: With dead ends: 76 [2023-03-31 00:12:37,319 INFO L226 Difference]: Without dead ends: 47 [2023-03-31 00:12:37,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-03-31 00:12:37,321 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 75 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 00:12:37,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 9 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 00:12:37,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-03-31 00:12:37,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2023-03-31 00:12:37,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 32 states have (on average 1.25) internal successors, (40), 32 states have internal predecessors, (40), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-03-31 00:12:37,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2023-03-31 00:12:37,339 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 29 [2023-03-31 00:12:37,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:12:37,339 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2023-03-31 00:12:37,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-03-31 00:12:37,340 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2023-03-31 00:12:37,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-03-31 00:12:37,341 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:12:37,341 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:12:37,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 00:12:37,342 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:12:37,342 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:12:37,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1665243933, now seen corresponding path program 1 times [2023-03-31 00:12:37,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:12:37,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018581030] [2023-03-31 00:12:37,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:12:37,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:12:37,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:37,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:12:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:37,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:12:37,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:37,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 00:12:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:37,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:12:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:37,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:12:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:37,525 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-03-31 00:12:37,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:12:37,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018581030] [2023-03-31 00:12:37,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018581030] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:12:37,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:12:37,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 00:12:37,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562606485] [2023-03-31 00:12:37,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:12:37,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 00:12:37,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:12:37,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 00:12:37,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-03-31 00:12:37,528 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-03-31 00:12:37,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:12:37,694 INFO L93 Difference]: Finished difference Result 81 states and 99 transitions. [2023-03-31 00:12:37,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 00:12:37,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 39 [2023-03-31 00:12:37,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:12:37,695 INFO L225 Difference]: With dead ends: 81 [2023-03-31 00:12:37,695 INFO L226 Difference]: Without dead ends: 47 [2023-03-31 00:12:37,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-03-31 00:12:37,697 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 50 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:12:37,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 5 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 00:12:37,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-03-31 00:12:37,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2023-03-31 00:12:37,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 34 states have internal predecessors, (42), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-03-31 00:12:37,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2023-03-31 00:12:37,712 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 39 [2023-03-31 00:12:37,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:12:37,712 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2023-03-31 00:12:37,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-03-31 00:12:37,713 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2023-03-31 00:12:37,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-03-31 00:12:37,715 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:12:37,715 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:12:37,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 00:12:37,716 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:12:37,716 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:12:37,716 INFO L85 PathProgramCache]: Analyzing trace with hash -140194401, now seen corresponding path program 1 times [2023-03-31 00:12:37,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:12:37,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568153996] [2023-03-31 00:12:37,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:12:37,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:12:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:37,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:12:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:37,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:12:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:38,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 00:12:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:38,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:12:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:38,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:12:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:38,055 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-03-31 00:12:38,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:12:38,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568153996] [2023-03-31 00:12:38,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568153996] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:12:38,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248258269] [2023-03-31 00:12:38,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:12:38,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:12:38,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:12:38,060 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 00:12:38,082 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 00:12:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:38,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 5 conjunts are in the unsatisfiable core [2023-03-31 00:12:38,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:12:38,344 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:12:38,344 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 00:12:38,476 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-03-31 00:12:38,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248258269] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 00:12:38,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 00:12:38,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 12 [2023-03-31 00:12:38,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646692687] [2023-03-31 00:12:38,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 00:12:38,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-03-31 00:12:38,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:12:38,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-03-31 00:12:38,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-03-31 00:12:38,479 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 12 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 7 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2023-03-31 00:12:38,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:12:38,783 INFO L93 Difference]: Finished difference Result 81 states and 98 transitions. [2023-03-31 00:12:38,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-03-31 00:12:38,784 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 7 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) Word has length 39 [2023-03-31 00:12:38,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:12:38,786 INFO L225 Difference]: With dead ends: 81 [2023-03-31 00:12:38,786 INFO L226 Difference]: Without dead ends: 52 [2023-03-31 00:12:38,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2023-03-31 00:12:38,791 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 96 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 00:12:38,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 9 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 00:12:38,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-03-31 00:12:38,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2023-03-31 00:12:38,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 36 states have internal predecessors, (44), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-03-31 00:12:38,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2023-03-31 00:12:38,801 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 39 [2023-03-31 00:12:38,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:12:38,801 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2023-03-31 00:12:38,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 7 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2023-03-31 00:12:38,801 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2023-03-31 00:12:38,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-03-31 00:12:38,802 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:12:38,802 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:12:38,816 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 00:12:39,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:12:39,003 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:12:39,004 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:12:39,004 INFO L85 PathProgramCache]: Analyzing trace with hash 2143399187, now seen corresponding path program 1 times [2023-03-31 00:12:39,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:12:39,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107870083] [2023-03-31 00:12:39,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:12:39,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:12:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:39,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:12:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:39,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:12:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:39,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 00:12:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:39,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:12:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:39,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-03-31 00:12:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:39,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:12:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:40,022 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-03-31 00:12:40,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:12:40,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107870083] [2023-03-31 00:12:40,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107870083] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:12:40,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677868427] [2023-03-31 00:12:40,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:12:40,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:12:40,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:12:40,024 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 00:12:40,043 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 00:12:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:40,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 36 conjunts are in the unsatisfiable core [2023-03-31 00:12:40,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:12:40,460 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 17 treesize of output 9 [2023-03-31 00:12:40,549 WARN L861 $PredicateComparison]: unable to prove that (exists ((node_create_~temp~0.base Int)) (and (exists ((v_ArrVal_750 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| node_create_~temp~0.base v_ArrVal_750))) (<= (+ node_create_~temp~0.base 1) |c_#StackHeapBarrier|))) is different from true [2023-03-31 00:12:42,819 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 2 not checked. [2023-03-31 00:12:42,819 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 00:12:42,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677868427] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:12:42,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-03-31 00:12:42,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 28 [2023-03-31 00:12:42,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279264637] [2023-03-31 00:12:42,964 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-03-31 00:12:42,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-03-31 00:12:42,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:12:42,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-03-31 00:12:42,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=660, Unknown=20, NotChecked=52, Total=812 [2023-03-31 00:12:42,966 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 28 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 20 states have internal predecessors, (48), 7 states have call successors, (11), 4 states have call predecessors, (11), 7 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2023-03-31 00:12:45,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-03-31 00:12:46,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:12:46,157 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2023-03-31 00:12:46,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 00:12:46,157 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 20 states have internal predecessors, (48), 7 states have call successors, (11), 4 states have call predecessors, (11), 7 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 49 [2023-03-31 00:12:46,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:12:46,158 INFO L225 Difference]: With dead ends: 84 [2023-03-31 00:12:46,158 INFO L226 Difference]: Without dead ends: 48 [2023-03-31 00:12:46,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 51 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=190, Invalid=1680, Unknown=26, NotChecked=84, Total=1980 [2023-03-31 00:12:46,160 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 90 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 21 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 54 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-03-31 00:12:46,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 23 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 777 Invalid, 12 Unknown, 54 Unchecked, 2.7s Time] [2023-03-31 00:12:46,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-03-31 00:12:46,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-03-31 00:12:46,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 36 states have internal predecessors, (42), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-03-31 00:12:46,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2023-03-31 00:12:46,170 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 49 [2023-03-31 00:12:46,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:12:46,172 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2023-03-31 00:12:46,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 22 states have (on average 2.1818181818181817) internal successors, (48), 20 states have internal predecessors, (48), 7 states have call successors, (11), 4 states have call predecessors, (11), 7 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2023-03-31 00:12:46,173 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2023-03-31 00:12:46,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-03-31 00:12:46,178 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:12:46,179 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:12:46,189 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 00:12:46,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:12:46,388 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:12:46,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:12:46,389 INFO L85 PathProgramCache]: Analyzing trace with hash 402455769, now seen corresponding path program 1 times [2023-03-31 00:12:46,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:12:46,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759322257] [2023-03-31 00:12:46,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:12:46,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:12:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:47,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:12:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:47,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:12:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:47,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 00:12:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:47,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:12:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:47,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-03-31 00:12:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:48,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:12:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:48,684 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 00:12:48,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:12:48,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759322257] [2023-03-31 00:12:48,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759322257] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:12:48,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758041452] [2023-03-31 00:12:48,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:12:48,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:12:48,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:12:48,686 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) [2023-03-31 00:12:48,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-31 00:12:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:48,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 93 conjunts are in the unsatisfiable core [2023-03-31 00:12:48,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:12:48,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2023-03-31 00:12:49,285 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-03-31 00:12:49,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-03-31 00:12:49,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-03-31 00:12:49,432 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-03-31 00:12:49,433 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-03-31 00:12:49,865 INFO L321 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-03-31 00:12:49,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 29 [2023-03-31 00:12:49,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-03-31 00:12:50,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 00:12:50,644 INFO L321 Elim1Store]: treesize reduction 59, result has 43.8 percent of original size [2023-03-31 00:12:50,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 106 treesize of output 153 [2023-03-31 00:12:50,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 00:12:50,757 INFO L321 Elim1Store]: treesize reduction 138, result has 31.3 percent of original size [2023-03-31 00:12:50,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 152 treesize of output 199 [2023-03-31 00:12:50,807 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-03-31 00:12:50,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26 [2023-03-31 00:12:50,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 14 treesize of output 17 [2023-03-31 00:12:50,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2023-03-31 00:12:50,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2023-03-31 00:12:51,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 00:12:51,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 22 [2023-03-31 00:12:51,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 00:12:51,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 86 [2023-03-31 00:12:51,728 INFO L321 Elim1Store]: treesize reduction 22, result has 56.0 percent of original size [2023-03-31 00:12:51,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 369 treesize of output 373 [2023-03-31 00:12:51,876 INFO L321 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2023-03-31 00:12:51,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 228 treesize of output 216 [2023-03-31 00:12:52,105 INFO L321 Elim1Store]: treesize reduction 78, result has 1.3 percent of original size [2023-03-31 00:12:52,106 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 755 treesize of output 1 [2023-03-31 00:12:52,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 44 treesize of output 32 [2023-03-31 00:12:52,189 INFO L321 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2023-03-31 00:12:52,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 24 [2023-03-31 00:12:52,226 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:12:52,227 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 00:12:52,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758041452] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:12:52,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-03-31 00:12:52,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 28] total 51 [2023-03-31 00:12:52,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229754530] [2023-03-31 00:12:52,605 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-03-31 00:12:52,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-03-31 00:12:52,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:12:52,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-03-31 00:12:52,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=2600, Unknown=11, NotChecked=0, Total=2756 [2023-03-31 00:12:52,608 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand has 51 states, 47 states have (on average 1.5319148936170213) internal successors, (72), 40 states have internal predecessors, (72), 8 states have call successors, (13), 5 states have call predecessors, (13), 11 states have return successors, (11), 11 states have call predecessors, (11), 8 states have call successors, (11) [2023-03-31 00:12:56,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:12:56,084 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2023-03-31 00:12:56,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-03-31 00:12:56,085 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 47 states have (on average 1.5319148936170213) internal successors, (72), 40 states have internal predecessors, (72), 8 states have call successors, (13), 5 states have call predecessors, (13), 11 states have return successors, (11), 11 states have call predecessors, (11), 8 states have call successors, (11) Word has length 52 [2023-03-31 00:12:56,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:12:56,086 INFO L225 Difference]: With dead ends: 67 [2023-03-31 00:12:56,086 INFO L226 Difference]: Without dead ends: 54 [2023-03-31 00:12:56,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1526 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=400, Invalid=5890, Unknown=30, NotChecked=0, Total=6320 [2023-03-31 00:12:56,089 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 130 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 33 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-03-31 00:12:56,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 43 Invalid, 1801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1753 Invalid, 15 Unknown, 0 Unchecked, 1.5s Time] [2023-03-31 00:12:56,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-03-31 00:12:56,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2023-03-31 00:12:56,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 38 states have (on average 1.131578947368421) internal successors, (43), 38 states have internal predecessors, (43), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-03-31 00:12:56,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2023-03-31 00:12:56,099 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 52 [2023-03-31 00:12:56,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:12:56,099 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2023-03-31 00:12:56,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 47 states have (on average 1.5319148936170213) internal successors, (72), 40 states have internal predecessors, (72), 8 states have call successors, (13), 5 states have call predecessors, (13), 11 states have return successors, (11), 11 states have call predecessors, (11), 8 states have call successors, (11) [2023-03-31 00:12:56,100 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2023-03-31 00:12:56,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-03-31 00:12:56,100 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:12:56,100 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:12:56,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-31 00:12:56,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:12:56,309 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:12:56,310 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:12:56,310 INFO L85 PathProgramCache]: Analyzing trace with hash 127043088, now seen corresponding path program 1 times [2023-03-31 00:12:56,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:12:56,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72551291] [2023-03-31 00:12:56,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:12:56,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:12:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:57,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:12:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:57,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:12:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:58,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 00:12:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:58,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:12:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:12:58,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-03-31 00:12:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:13:02,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:13:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:13:03,228 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 00:13:03,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:13:03,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72551291] [2023-03-31 00:13:03,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72551291] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:13:03,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374594054] [2023-03-31 00:13:03,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:13:03,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:13:03,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:13:03,230 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 00:13:03,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-03-31 00:13:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:13:03,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 155 conjunts are in the unsatisfiable core [2023-03-31 00:13:03,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:13:03,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-03-31 00:13:03,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2023-03-31 00:13:04,505 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 00:13:04,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-03-31 00:13:04,615 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-03-31 00:13:04,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 52 [2023-03-31 00:13:04,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 00:13:04,624 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 18 treesize of output 20 [2023-03-31 00:13:04,937 INFO L321 Elim1Store]: treesize reduction 84, result has 24.3 percent of original size [2023-03-31 00:13:04,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 49 [2023-03-31 00:13:05,204 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-03-31 00:13:05,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 33 [2023-03-31 00:13:05,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2023-03-31 00:13:05,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2023-03-31 00:13:06,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 00:13:06,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 00:13:06,857 INFO L321 Elim1Store]: treesize reduction 803, result has 18.9 percent of original size [2023-03-31 00:13:06,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 508 treesize of output 953 [2023-03-31 00:13:06,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 00:13:06,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 00:13:07,211 INFO L321 Elim1Store]: treesize reduction 294, result has 22.0 percent of original size [2023-03-31 00:13:07,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 9 new quantified variables, introduced 19 case distinctions, treesize of input 1051 treesize of output 1335 [2023-03-31 00:13:07,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 00:13:07,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 00:13:07,369 INFO L321 Elim1Store]: treesize reduction 54, result has 19.4 percent of original size [2023-03-31 00:13:07,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 123 [2023-03-31 00:13:07,439 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2023-03-31 00:13:07,440 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 900 treesize of output 823 [2023-03-31 00:13:07,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 51 [2023-03-31 00:13:07,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 00:13:07,617 INFO L321 Elim1Store]: treesize reduction 8, result has 86.0 percent of original size [2023-03-31 00:13:07,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 61 [2023-03-31 00:13:07,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-31 00:13:09,315 INFO L321 Elim1Store]: treesize reduction 1785, result has 19.7 percent of original size [2023-03-31 00:13:09,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 9 new quantified variables, introduced 25 case distinctions, treesize of input 23826 treesize of output 32556 [2023-03-31 00:13:14,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 698 treesize of output 673 [2023-03-31 00:13:15,208 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 00:13:15,209 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-31 00:13:15,301 INFO L217 Elim1Store]: Index analysis took 416 ms [2023-03-31 00:13:15,822 INFO L321 Elim1Store]: treesize reduction 910, result has 5.2 percent of original size [2023-03-31 00:13:15,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 14 case distinctions, treesize of input 50076 treesize of output 60169 [2023-03-31 00:13:20,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 1331 treesize of output 1330 [2023-03-31 00:13:20,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 1331 treesize of output 1330 [2023-03-31 00:13:21,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 1380 treesize of output 2697 [2023-03-31 00:13:24,221 INFO L321 Elim1Store]: treesize reduction 562, result has 8.2 percent of original size [2023-03-31 00:13:24,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 207731 treesize of output 155569