/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/dll2c_prepend_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 01:03:38,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 01:03:38,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 01:03:38,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 01:03:38,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 01:03:38,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 01:03:38,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 01:03:38,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 01:03:38,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 01:03:38,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 01:03:38,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 01:03:38,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 01:03:38,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 01:03:38,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 01:03:38,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 01:03:38,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 01:03:38,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 01:03:38,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 01:03:38,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 01:03:38,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 01:03:38,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 01:03:38,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 01:03:38,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 01:03:38,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 01:03:38,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 01:03:38,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 01:03:38,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 01:03:38,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 01:03:38,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 01:03:38,263 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 01:03:38,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 01:03:38,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 01:03:38,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 01:03:38,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 01:03:38,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 01:03:38,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 01:03:38,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 01:03:38,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 01:03:38,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 01:03:38,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 01:03:38,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 01:03:38,270 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 [2023-04-02 01:03:38,305 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 01:03:38,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 01:03:38,306 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 01:03:38,306 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 01:03:38,307 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 01:03:38,307 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 01:03:38,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 01:03:38,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 01:03:38,308 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 01:03:38,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 01:03:38,309 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 01:03:38,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 01:03:38,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 01:03:38,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 01:03:38,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 01:03:38,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 01:03:38,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 01:03:38,310 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 01:03:38,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 01:03:38,310 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 01:03:38,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 01:03:38,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 01:03:38,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 01:03:38,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 01:03:38,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 01:03:38,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 01:03:38,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 01:03:38,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 01:03:38,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 01:03:38,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 01:03:38,312 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 01:03:38,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 01:03:38,312 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 01:03:38,312 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 01:03:38,312 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 01:03:38,312 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 01:03:38,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 01:03:38,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 01:03:38,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 01:03:38,562 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 01:03:38,563 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 01:03:38,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2c_prepend_unequal.i [2023-04-02 01:03:39,734 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 01:03:40,003 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 01:03:40,003 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_prepend_unequal.i [2023-04-02 01:03:40,015 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c16c0545/931fd89484c743bd92d8beee84c0b4f6/FLAGf7803e985 [2023-04-02 01:03:40,309 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c16c0545/931fd89484c743bd92d8beee84c0b4f6 [2023-04-02 01:03:40,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 01:03:40,313 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 01:03:40,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 01:03:40,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 01:03:40,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 01:03:40,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 01:03:40" (1/1) ... [2023-04-02 01:03:40,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41cf232e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:03:40, skipping insertion in model container [2023-04-02 01:03:40,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 01:03:40" (1/1) ... [2023-04-02 01:03:40,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 01:03:40,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 01:03:40,671 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/dll2c_prepend_unequal.i[24729,24742] [2023-04-02 01:03:40,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 01:03:40,688 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 01:03:40,730 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/dll2c_prepend_unequal.i[24729,24742] [2023-04-02 01:03:40,731 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 01:03:40,755 INFO L208 MainTranslator]: Completed translation [2023-04-02 01:03:40,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:03:40 WrapperNode [2023-04-02 01:03:40,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 01:03:40,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 01:03:40,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 01:03:40,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 01:03:40,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:03:40" (1/1) ... [2023-04-02 01:03:40,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:03:40" (1/1) ... [2023-04-02 01:03:40,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:03:40" (1/1) ... [2023-04-02 01:03:40,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:03:40" (1/1) ... [2023-04-02 01:03:40,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:03:40" (1/1) ... [2023-04-02 01:03:40,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:03:40" (1/1) ... [2023-04-02 01:03:40,796 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:03:40" (1/1) ... [2023-04-02 01:03:40,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:03:40" (1/1) ... [2023-04-02 01:03:40,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 01:03:40,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 01:03:40,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 01:03:40,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 01:03:40,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:03:40" (1/1) ... [2023-04-02 01:03:40,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 01:03:40,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 01:03:40,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 01:03:40,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 01:03:40,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 01:03:40,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 01:03:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 01:03:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2023-04-02 01:03:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2023-04-02 01:03:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2023-04-02 01:03:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2023-04-02 01:03:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2023-04-02 01:03:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_destroy [2023-04-02 01:03:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_prepend [2023-04-02 01:03:40,869 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 01:03:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 01:03:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 01:03:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-02 01:03:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-02 01:03:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 01:03:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 01:03:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2023-04-02 01:03:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2023-04-02 01:03:40,870 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2023-04-02 01:03:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2023-04-02 01:03:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2023-04-02 01:03:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2023-04-02 01:03:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2023-04-02 01:03:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2023-04-02 01:03:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2023-04-02 01:03:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2023-04-02 01:03:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-04-02 01:03:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-04-02 01:03:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2023-04-02 01:03:40,871 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2023-04-02 01:03:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-04-02 01:03:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-04-02 01:03:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2023-04-02 01:03:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2023-04-02 01:03:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure select [2023-04-02 01:03:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2023-04-02 01:03:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2023-04-02 01:03:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2023-04-02 01:03:40,872 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2023-04-02 01:03:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-04-02 01:03:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2023-04-02 01:03:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2023-04-02 01:03:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2023-04-02 01:03:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2023-04-02 01:03:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2023-04-02 01:03:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2023-04-02 01:03:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2023-04-02 01:03:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2023-04-02 01:03:40,873 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2023-04-02 01:03:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2023-04-02 01:03:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2023-04-02 01:03:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2023-04-02 01:03:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2023-04-02 01:03:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2023-04-02 01:03:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2023-04-02 01:03:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2023-04-02 01:03:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2023-04-02 01:03:40,874 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2023-04-02 01:03:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2023-04-02 01:03:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2023-04-02 01:03:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2023-04-02 01:03:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2023-04-02 01:03:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2023-04-02 01:03:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2023-04-02 01:03:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2023-04-02 01:03:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2023-04-02 01:03:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2023-04-02 01:03:40,875 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2023-04-02 01:03:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 01:03:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-02 01:03:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2023-04-02 01:03:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 01:03:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2023-04-02 01:03:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2023-04-02 01:03:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2023-04-02 01:03:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2023-04-02 01:03:40,876 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2023-04-02 01:03:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2023-04-02 01:03:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2023-04-02 01:03:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2023-04-02 01:03:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 01:03:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2023-04-02 01:03:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2023-04-02 01:03:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2023-04-02 01:03:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2023-04-02 01:03:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2023-04-02 01:03:40,877 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2023-04-02 01:03:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2023-04-02 01:03:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2023-04-02 01:03:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2023-04-02 01:03:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2023-04-02 01:03:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2023-04-02 01:03:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure system [2023-04-02 01:03:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2023-04-02 01:03:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2023-04-02 01:03:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2023-04-02 01:03:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2023-04-02 01:03:40,878 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2023-04-02 01:03:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2023-04-02 01:03:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure div [2023-04-02 01:03:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2023-04-02 01:03:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2023-04-02 01:03:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2023-04-02 01:03:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2023-04-02 01:03:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2023-04-02 01:03:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2023-04-02 01:03:40,879 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2023-04-02 01:03:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2023-04-02 01:03:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2023-04-02 01:03:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2023-04-02 01:03:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2023-04-02 01:03:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2023-04-02 01:03:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2023-04-02 01:03:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2023-04-02 01:03:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2023-04-02 01:03:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2023-04-02 01:03:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2023-04-02 01:03:40,880 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2023-04-02 01:03:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2023-04-02 01:03:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2023-04-02 01:03:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2023-04-02 01:03:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2023-04-02 01:03:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 01:03:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 01:03:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 01:03:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2023-04-02 01:03:40,881 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_destroy [2023-04-02 01:03:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 01:03:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 01:03:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_prepend [2023-04-02 01:03:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 01:03:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 01:03:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-02 01:03:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 01:03:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 01:03:40,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 01:03:40,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 01:03:41,079 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 01:03:41,081 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 01:03:41,198 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2023-04-02 01:03:41,419 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 01:03:41,424 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 01:03:41,424 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-04-02 01:03:41,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 01:03:41 BoogieIcfgContainer [2023-04-02 01:03:41,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 01:03:41,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 01:03:41,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 01:03:41,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 01:03:41,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 01:03:40" (1/3) ... [2023-04-02 01:03:41,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aab7e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 01:03:41, skipping insertion in model container [2023-04-02 01:03:41,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 01:03:40" (2/3) ... [2023-04-02 01:03:41,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aab7e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 01:03:41, skipping insertion in model container [2023-04-02 01:03:41,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 01:03:41" (3/3) ... [2023-04-02 01:03:41,436 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2c_prepend_unequal.i [2023-04-02 01:03:41,450 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 01:03:41,451 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 01:03:41,487 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 01:03:41,492 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;@136611b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 01:03:41,492 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 01:03:41,496 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 38 states have (on average 1.368421052631579) internal successors, (52), 39 states have internal predecessors, (52), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-04-02 01:03:41,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-04-02 01:03:41,502 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:03:41,502 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] [2023-04-02 01:03:41,503 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 01:03:41,506 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:03:41,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1198110076, now seen corresponding path program 1 times [2023-04-02 01:03:41,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:03:41,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539115624] [2023-04-02 01:03:41,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:03:41,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:03:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:42,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:03:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:42,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 01:03:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:42,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:42,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 01:03:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:42,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:42,235 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 01:03:42,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:03:42,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539115624] [2023-04-02 01:03:42,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539115624] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 01:03:42,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 01:03:42,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 01:03:42,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256169044] [2023-04-02 01:03:42,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 01:03:42,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 01:03:42,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:03:42,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 01:03:42,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-02 01:03:42,287 INFO L87 Difference]: Start difference. First operand has 55 states, 38 states have (on average 1.368421052631579) internal successors, (52), 39 states have internal predecessors, (52), 9 states have call successors, (9), 7 states have call predecessors, (9), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-04-02 01:03:42,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:03:42,773 INFO L93 Difference]: Finished difference Result 107 states and 137 transitions. [2023-04-02 01:03:42,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 01:03:42,777 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), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 35 [2023-04-02 01:03:42,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:03:42,783 INFO L225 Difference]: With dead ends: 107 [2023-04-02 01:03:42,783 INFO L226 Difference]: Without dead ends: 45 [2023-04-02 01:03:42,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-04-02 01:03:42,795 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 92 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 01:03:42,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 16 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 01:03:42,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-04-02 01:03:42,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2023-04-02 01:03:42,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 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) [2023-04-02 01:03:42,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2023-04-02 01:03:42,839 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 35 [2023-04-02 01:03:42,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:03:42,840 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2023-04-02 01:03:42,840 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), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-04-02 01:03:42,840 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2023-04-02 01:03:42,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-04-02 01:03:42,843 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:03:42,843 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:03:42,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 01:03:42,844 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 01:03:42,844 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:03:42,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1255931344, now seen corresponding path program 1 times [2023-04-02 01:03:42,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:03:42,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596754105] [2023-04-02 01:03:42,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:03:42,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:03:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:43,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:03:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:43,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 01:03:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:43,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:43,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:03:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:43,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 01:03:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:43,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:44,017 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 01:03:44,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:03:44,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596754105] [2023-04-02 01:03:44,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596754105] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 01:03:44,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993720880] [2023-04-02 01:03:44,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:03:44,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 01:03:44,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 01:03:44,029 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 01:03:44,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 01:03:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:44,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 42 conjunts are in the unsatisfiable core [2023-04-02 01:03:44,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 01:03:44,600 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 [2023-04-02 01:03:44,938 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 01:03:44,938 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 01:03:45,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993720880] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 01:03:45,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-04-02 01:03:45,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 28 [2023-04-02 01:03:45,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784108892] [2023-04-02 01:03:45,083 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-04-02 01:03:45,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-04-02 01:03:45,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 01:03:45,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-04-02 01:03:45,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=717, Unknown=14, NotChecked=0, Total=812 [2023-04-02 01:03:45,085 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 28 states, 22 states have (on average 2.0454545454545454) internal successors, (45), 20 states have internal predecessors, (45), 7 states have call successors, (13), 4 states have call predecessors, (13), 7 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2023-04-02 01:03:46,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 01:03:46,541 INFO L93 Difference]: Finished difference Result 77 states and 92 transitions. [2023-04-02 01:03:46,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 01:03:46,542 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 22 states have (on average 2.0454545454545454) internal successors, (45), 20 states have internal predecessors, (45), 7 states have call successors, (13), 4 states have call predecessors, (13), 7 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 45 [2023-04-02 01:03:46,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 01:03:46,543 INFO L225 Difference]: With dead ends: 77 [2023-04-02 01:03:46,543 INFO L226 Difference]: Without dead ends: 45 [2023-04-02 01:03:46,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 46 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=201, Invalid=1850, Unknown=19, NotChecked=0, Total=2070 [2023-04-02 01:03:46,546 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 77 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 21 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 01:03:46,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 21 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 798 Invalid, 14 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 01:03:46,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-04-02 01:03:46,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2023-04-02 01:03:46,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-04-02 01:03:46,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2023-04-02 01:03:46,556 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 45 [2023-04-02 01:03:46,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 01:03:46,556 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2023-04-02 01:03:46,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 22 states have (on average 2.0454545454545454) internal successors, (45), 20 states have internal predecessors, (45), 7 states have call successors, (13), 4 states have call predecessors, (13), 7 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2023-04-02 01:03:46,557 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2023-04-02 01:03:46,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-04-02 01:03:46,558 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 01:03:46,558 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 01:03:46,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-02 01:03:46,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 01:03:46,765 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 01:03:46,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 01:03:46,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1198673042, now seen corresponding path program 1 times [2023-04-02 01:03:46,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 01:03:46,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789978737] [2023-04-02 01:03:46,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:03:46,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 01:03:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:49,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 01:03:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:49,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 01:03:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:50,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:50,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 01:03:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:50,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 01:03:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:52,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 01:03:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:53,162 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 01:03:53,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 01:03:53,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789978737] [2023-04-02 01:03:53,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789978737] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 01:03:53,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968513243] [2023-04-02 01:03:53,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 01:03:53,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 01:03:53,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 01:03:53,165 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 01:03:53,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 01:03:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 01:03:53,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 148 conjunts are in the unsatisfiable core [2023-04-02 01:03:53,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 01:03:53,477 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 [2023-04-02 01:03:53,514 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 [2023-04-02 01:03:54,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:03:54,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:03:54,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-04-02 01:03:54,022 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 8 treesize of output 7 [2023-04-02 01:03:54,128 INFO L321 Elim1Store]: treesize reduction 84, result has 24.3 percent of original size [2023-04-02 01:03:54,129 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 [2023-04-02 01:03:54,300 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-02 01:03:54,300 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 59 treesize of output 26 [2023-04-02 01:03:54,307 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 [2023-04-02 01:03:54,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-04-02 01:03:54,482 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 13 treesize of output 9 [2023-04-02 01:03:56,413 INFO L321 Elim1Store]: treesize reduction 1482, result has 38.7 percent of original size [2023-04-02 01:03:56,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 1476 treesize of output 4191 [2023-04-02 01:03:56,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 29 [2023-04-02 01:03:57,062 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 33 treesize of output 23 [2023-04-02 01:03:57,164 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 33 treesize of output 23 [2023-04-02 01:03:57,395 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 33 treesize of output 23 [2023-04-02 01:03:58,194 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 23 treesize of output 27 [2023-04-02 01:03:58,288 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 23 treesize of output 27 [2023-04-02 01:03:58,852 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 23 treesize of output 27 [2023-04-02 01:04:21,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:04:30,897 WARN L223 SmtUtils]: Spent 8.36s on a formula simplification. DAG size of input: 157 DAG size of output: 74 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-04-02 01:04:30,897 INFO L321 Elim1Store]: treesize reduction 2088, result has 17.9 percent of original size [2023-04-02 01:04:30,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 41 case distinctions, treesize of input 64572 treesize of output 71875 [2023-04-02 01:04:33,232 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 1494 treesize of output 1380 [2023-04-02 01:04:33,837 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 820 treesize of output 754 [2023-04-02 01:04:35,925 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 2455 treesize of output 2277 [2023-04-02 01:04:36,388 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 1494 treesize of output 1380 [2023-04-02 01:04:38,600 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 826 treesize of output 760 [2023-04-02 01:04:39,006 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 1983 treesize of output 1837 [2023-04-02 01:04:50,577 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:50,661 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:50,668 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:50,668 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:50,681 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:50,681 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:50,697 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:50,697 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:50,704 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:50,710 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:50,715 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:50,726 INFO L217 Elim1Store]: Index analysis took 205 ms [2023-04-02 01:04:50,796 INFO L321 Elim1Store]: treesize reduction 263, result has 0.4 percent of original size [2023-04-02 01:04:50,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 2481 treesize of output 7209 [2023-04-02 01:04:51,631 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:51,732 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:51,741 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:51,742 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:51,797 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:51,798 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:51,805 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:51,827 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:51,840 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:51,867 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:51,877 INFO L217 Elim1Store]: Index analysis took 302 ms [2023-04-02 01:04:51,930 INFO L321 Elim1Store]: treesize reduction 263, result has 0.4 percent of original size [2023-04-02 01:04:51,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 2481 treesize of output 7209 [2023-04-02 01:04:53,717 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:53,796 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:53,873 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:53,926 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:53,943 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:53,960 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:54,039 INFO L217 Elim1Store]: Index analysis took 366 ms [2023-04-02 01:04:54,168 INFO L321 Elim1Store]: treesize reduction 812, result has 0.1 percent of original size [2023-04-02 01:04:54,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 19 case distinctions, treesize of input 2481 treesize of output 7209 [2023-04-02 01:04:55,078 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:55,097 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:55,130 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:55,130 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:55,134 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:55,135 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:55,139 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:55,153 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:55,153 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:55,183 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:04:55,183 INFO L217 Elim1Store]: Index analysis took 129 ms [2023-04-02 01:04:55,313 INFO L321 Elim1Store]: treesize reduction 353, result has 0.3 percent of original size [2023-04-02 01:04:55,314 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 3 new quantified variables, introduced 19 case distinctions, treesize of input 2481 treesize of output 7209 [2023-04-02 01:05:13,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 23 treesize of output 17 [2023-04-02 01:05:28,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 23 treesize of output 17 [2023-04-02 01:05:29,229 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 13 treesize of output 9 [2023-04-02 01:05:33,075 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 795 treesize of output 739 [2023-04-02 01:05:33,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 23 treesize of output 17 [2023-04-02 01:05:33,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 23 treesize of output 17 [2023-04-02 01:05:33,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 23 treesize of output 17 [2023-04-02 01:05:33,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 23 treesize of output 17 [2023-04-02 01:06:09,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:06:09,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:06:09,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-02 01:06:09,197 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:06:09,198 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:06:09,284 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:06:09,284 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:06:09,292 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:06:09,293 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:06:09,293 INFO L173 IndexEqualityManager]: detected equality via solver [2023-04-02 01:06:09,295 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 10330 treesize of output 10249 [2023-04-02 01:06:09,369 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 826 treesize of output 760 [2023-04-02 01:06:09,379 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 801 treesize of output 745 [2023-04-02 01:06:09,448 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-04-02 01:06:09,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 01:06:09,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-04-02 01:06:09,649 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: no need to replace index at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructDerEnabler(DerPreprocessor.java:187) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:352) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:296) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:296) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:282) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:298) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-04-02 01:06:09,653 INFO L158 Benchmark]: Toolchain (without parser) took 149340.11ms. Allocated memory was 275.8MB in the beginning and 657.5MB in the end (delta: 381.7MB). Free memory was 235.2MB in the beginning and 344.2MB in the end (delta: -109.0MB). Peak memory consumption was 414.2MB. Max. memory is 8.0GB. [2023-04-02 01:06:09,653 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 179.3MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 01:06:09,653 INFO L158 Benchmark]: CACSL2BoogieTranslator took 442.16ms. Allocated memory is still 275.8MB. Free memory was 234.7MB in the beginning and 217.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-04-02 01:06:09,653 INFO L158 Benchmark]: Boogie Preprocessor took 46.39ms. Allocated memory is still 275.8MB. Free memory was 217.4MB in the beginning and 214.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-02 01:06:09,654 INFO L158 Benchmark]: RCFGBuilder took 625.99ms. Allocated memory is still 275.8MB. Free memory was 214.3MB in the beginning and 187.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-04-02 01:06:09,654 INFO L158 Benchmark]: TraceAbstraction took 148221.16ms. Allocated memory was 275.8MB in the beginning and 657.5MB in the end (delta: 381.7MB). Free memory was 186.0MB in the beginning and 344.2MB in the end (delta: -158.2MB). Peak memory consumption was 364.9MB. Max. memory is 8.0GB. [2023-04-02 01:06:09,655 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 179.3MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 442.16ms. Allocated memory is still 275.8MB. Free memory was 234.7MB in the beginning and 217.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.39ms. Allocated memory is still 275.8MB. Free memory was 217.4MB in the beginning and 214.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 625.99ms. Allocated memory is still 275.8MB. Free memory was 214.3MB in the beginning and 187.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * TraceAbstraction took 148221.16ms. Allocated memory was 275.8MB in the beginning and 657.5MB in the end (delta: 381.7MB). Free memory was 186.0MB in the beginning and 344.2MB in the end (delta: -158.2MB). Peak memory consumption was 364.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: no need to replace index de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: no need to replace index: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.constructReplacementForSelectCase(DerPreprocessor.java:333) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-04-02 01:06:09,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...