./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1-2.i --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/sll-rb-cnstr_1-2.yml/witness.yml --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03fe66fa Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1-2.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/sll-rb-cnstr_1-2.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-03fe66f-m [2024-08-15 18:25:35,076 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-15 18:25:35,159 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-15 18:25:35,187 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-15 18:25:35,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-15 18:25:35,231 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-15 18:25:35,233 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-15 18:25:35,234 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-15 18:25:35,234 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-15 18:25:35,235 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-15 18:25:35,237 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-15 18:25:35,237 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-15 18:25:35,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-15 18:25:35,238 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-15 18:25:35,240 INFO L153 SettingsManager]: * Use SBE=true [2024-08-15 18:25:35,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-15 18:25:35,240 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-15 18:25:35,241 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-15 18:25:35,241 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-15 18:25:35,241 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-15 18:25:35,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-15 18:25:35,245 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-15 18:25:35,245 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-15 18:25:35,245 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-15 18:25:35,245 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-15 18:25:35,246 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-15 18:25:35,246 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-15 18:25:35,246 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-15 18:25:35,246 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-15 18:25:35,247 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-15 18:25:35,247 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-15 18:25:35,248 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-15 18:25:35,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-15 18:25:35,248 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-15 18:25:35,248 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-15 18:25:35,249 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-15 18:25:35,249 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-15 18:25:35,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-15 18:25:35,249 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-15 18:25:35,249 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-15 18:25:35,249 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-15 18:25:35,250 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-15 18:25:35,250 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-15 18:25:35,251 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-15 18:25:35,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-15 18:25:35,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-15 18:25:35,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-15 18:25:35,554 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-15 18:25:35,555 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-15 18:25:35,556 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/sll-rb-cnstr_1-2.yml/witness.yml [2024-08-15 18:25:35,664 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-15 18:25:35,665 INFO L274 PluginConnector]: CDTParser initialized [2024-08-15 18:25:35,665 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1-2.i [2024-08-15 18:25:37,183 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-15 18:25:37,463 INFO L384 CDTParser]: Found 1 translation units. [2024-08-15 18:25:37,464 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1-2.i [2024-08-15 18:25:37,479 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbdd9f1f7/f38663d981cc472a8b0adff6bb91c65d/FLAGdd2ad7525 [2024-08-15 18:25:37,494 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbdd9f1f7/f38663d981cc472a8b0adff6bb91c65d [2024-08-15 18:25:37,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-15 18:25:37,496 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-15 18:25:37,497 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-15 18:25:37,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-15 18:25:37,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-15 18:25:37,504 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:25:35" (1/2) ... [2024-08-15 18:25:37,505 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bea32db and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:25:37, skipping insertion in model container [2024-08-15 18:25:37,505 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:25:35" (1/2) ... [2024-08-15 18:25:37,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2051615f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 15.08 06:25:37, skipping insertion in model container [2024-08-15 18:25:37,507 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:25:37" (2/2) ... [2024-08-15 18:25:37,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bea32db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:25:37, skipping insertion in model container [2024-08-15 18:25:37,507 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.08 06:25:37" (2/2) ... [2024-08-15 18:25:37,566 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-15 18:25:37,899 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1-2.i[22480,22493] [2024-08-15 18:25:37,904 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1-2.i[22552,22565] [2024-08-15 18:25:37,910 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1-2.i[22720,22733] [2024-08-15 18:25:37,917 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:25:37,931 INFO L200 MainTranslator]: Completed pre-run [2024-08-15 18:25:37,972 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1-2.i[22480,22493] [2024-08-15 18:25:37,974 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1-2.i[22552,22565] [2024-08-15 18:25:37,975 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-rb-cnstr_1-2.i[22720,22733] [2024-08-15 18:25:37,978 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-15 18:25:38,011 INFO L204 MainTranslator]: Completed translation [2024-08-15 18:25:38,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:25:38 WrapperNode [2024-08-15 18:25:38,012 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-15 18:25:38,014 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-15 18:25:38,015 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-15 18:25:38,015 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-15 18:25:38,030 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:25:38" (1/1) ... [2024-08-15 18:25:38,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:25:38" (1/1) ... [2024-08-15 18:25:38,052 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:25:38" (1/1) ... [2024-08-15 18:25:38,087 INFO L175 MemorySlicer]: Split 23 memory accesses to 2 slices as follows [2, 21]. 91 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 9 writes are split as follows [0, 9]. [2024-08-15 18:25:38,088 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:25:38" (1/1) ... [2024-08-15 18:25:38,091 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:25:38" (1/1) ... [2024-08-15 18:25:38,112 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:25:38" (1/1) ... [2024-08-15 18:25:38,118 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:25:38" (1/1) ... [2024-08-15 18:25:38,123 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:25:38" (1/1) ... [2024-08-15 18:25:38,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-15 18:25:38,133 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-15 18:25:38,136 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-15 18:25:38,136 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-15 18:25:38,138 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:25:38" (1/1) ... [2024-08-15 18:25:38,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-15 18:25:38,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-15 18:25:38,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-15 18:25:38,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-15 18:25:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-15 18:25:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-15 18:25:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-15 18:25:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-15 18:25:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2024-08-15 18:25:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2024-08-15 18:25:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2024-08-15 18:25:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2024-08-15 18:25:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2024-08-15 18:25:38,251 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2024-08-15 18:25:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2024-08-15 18:25:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2024-08-15 18:25:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2024-08-15 18:25:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2024-08-15 18:25:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2024-08-15 18:25:38,252 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2024-08-15 18:25:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2024-08-15 18:25:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2024-08-15 18:25:38,253 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2024-08-15 18:25:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2024-08-15 18:25:38,254 INFO L130 BoogieDeclarations]: Found specification of procedure select [2024-08-15 18:25:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2024-08-15 18:25:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2024-08-15 18:25:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2024-08-15 18:25:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2024-08-15 18:25:38,257 INFO L130 BoogieDeclarations]: Found specification of procedure random [2024-08-15 18:25:38,257 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2024-08-15 18:25:38,257 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2024-08-15 18:25:38,257 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2024-08-15 18:25:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2024-08-15 18:25:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2024-08-15 18:25:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2024-08-15 18:25:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2024-08-15 18:25:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2024-08-15 18:25:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2024-08-15 18:25:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2024-08-15 18:25:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2024-08-15 18:25:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2024-08-15 18:25:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2024-08-15 18:25:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2024-08-15 18:25:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2024-08-15 18:25:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2024-08-15 18:25:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2024-08-15 18:25:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2024-08-15 18:25:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2024-08-15 18:25:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2024-08-15 18:25:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2024-08-15 18:25:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2024-08-15 18:25:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2024-08-15 18:25:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2024-08-15 18:25:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2024-08-15 18:25:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2024-08-15 18:25:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2024-08-15 18:25:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2024-08-15 18:25:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2024-08-15 18:25:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2024-08-15 18:25:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2024-08-15 18:25:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure free [2024-08-15 18:25:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2024-08-15 18:25:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2024-08-15 18:25:38,261 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2024-08-15 18:25:38,262 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2024-08-15 18:25:38,262 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2024-08-15 18:25:38,262 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-15 18:25:38,262 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2024-08-15 18:25:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2024-08-15 18:25:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2024-08-15 18:25:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-15 18:25:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2024-08-15 18:25:38,264 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2024-08-15 18:25:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2024-08-15 18:25:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2024-08-15 18:25:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2024-08-15 18:25:38,265 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2024-08-15 18:25:38,266 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2024-08-15 18:25:38,266 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2024-08-15 18:25:38,267 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2024-08-15 18:25:38,267 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2024-08-15 18:25:38,267 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2024-08-15 18:25:38,267 INFO L130 BoogieDeclarations]: Found specification of procedure system [2024-08-15 18:25:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2024-08-15 18:25:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2024-08-15 18:25:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2024-08-15 18:25:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2024-08-15 18:25:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2024-08-15 18:25:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2024-08-15 18:25:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure div [2024-08-15 18:25:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2024-08-15 18:25:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2024-08-15 18:25:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2024-08-15 18:25:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2024-08-15 18:25:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2024-08-15 18:25:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2024-08-15 18:25:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2024-08-15 18:25:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2024-08-15 18:25:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2024-08-15 18:25:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2024-08-15 18:25:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2024-08-15 18:25:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2024-08-15 18:25:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2024-08-15 18:25:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2024-08-15 18:25:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2024-08-15 18:25:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2024-08-15 18:25:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2024-08-15 18:25:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2024-08-15 18:25:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2024-08-15 18:25:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2024-08-15 18:25:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-15 18:25:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-15 18:25:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-15 18:25:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-15 18:25:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-15 18:25:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-15 18:25:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-15 18:25:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-15 18:25:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-08-15 18:25:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-08-15 18:25:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-15 18:25:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-15 18:25:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-08-15 18:25:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-08-15 18:25:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-15 18:25:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-15 18:25:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-15 18:25:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-15 18:25:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-15 18:25:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-15 18:25:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-15 18:25:38,486 INFO L273 CfgBuilder]: Building ICFG [2024-08-15 18:25:38,490 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-15 18:25:38,718 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-08-15 18:25:38,718 INFO L327 CfgBuilder]: Performing block encoding [2024-08-15 18:25:38,731 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-15 18:25:38,731 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-15 18:25:38,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:25:38 BoogieIcfgContainer [2024-08-15 18:25:38,734 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-15 18:25:38,737 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-15 18:25:38,737 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-15 18:25:38,742 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-15 18:25:38,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 15.08 06:25:35" (1/4) ... [2024-08-15 18:25:38,743 WARN L100 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-15 18:25:38,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a996a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 15.08 06:25:38, skipping insertion in model container [2024-08-15 18:25:38,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.08 06:25:37" (2/4) ... [2024-08-15 18:25:38,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a996a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:25:38, skipping insertion in model container [2024-08-15 18:25:38,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.08 06:25:38" (3/4) ... [2024-08-15 18:25:38,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a996a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.08 06:25:38, skipping insertion in model container [2024-08-15 18:25:38,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 15.08 06:25:38" (4/4) ... [2024-08-15 18:25:38,751 INFO L128 eAbstractionObserver]: Analyzing ICFG sll-rb-cnstr_1-2.i [2024-08-15 18:25:38,771 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-15 18:25:38,771 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-08-15 18:25:38,806 INFO L90 WitnessUtils]: Constructing product of automaton with 44 states and violation witness of the following lengths: [9] [2024-08-15 18:25:38,885 INFO L95 WitnessUtils]: Product has 150 reachable states. [2024-08-15 18:25:38,910 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-15 18:25:38,920 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@38735f35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-15 18:25:38,921 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-08-15 18:25:38,924 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 212 transitions. [2024-08-15 18:25:38,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-08-15 18:25:38,931 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:25:38,932 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] [2024-08-15 18:25:38,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:25:38,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:25:38,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1955223148, now seen corresponding path program 1 times [2024-08-15 18:25:38,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:25:38,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390945468] [2024-08-15 18:25:38,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:25:38,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:25:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-15 18:25:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-15 18:25:39,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-15 18:25:39,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-15 18:25:39,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390945468] [2024-08-15 18:25:39,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390945468] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-15 18:25:39,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-15 18:25:39,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-15 18:25:39,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482115749] [2024-08-15 18:25:39,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-15 18:25:39,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-08-15 18:25:39,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-15 18:25:39,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-08-15 18:25:39,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-15 18:25:39,264 INFO L87 Difference]: Start difference. First operand 150 states and 212 transitions. Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-08-15 18:25:39,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-15 18:25:39,271 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2024-08-15 18:25:39,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-15 18:25:39,273 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-08-15 18:25:39,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-15 18:25:39,279 INFO L225 Difference]: With dead ends: 43 [2024-08-15 18:25:39,280 INFO L226 Difference]: Without dead ends: 37 [2024-08-15 18:25:39,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-08-15 18:25:39,285 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-15 18:25:39,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-15 18:25:39,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-08-15 18:25:39,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2024-08-15 18:25:39,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-08-15 18:25:39,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2024-08-15 18:25:39,317 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 21 [2024-08-15 18:25:39,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-15 18:25:39,317 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2024-08-15 18:25:39,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-08-15 18:25:39,318 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2024-08-15 18:25:39,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-08-15 18:25:39,318 INFO L187 NwaCegarLoop]: Found error trace [2024-08-15 18:25:39,319 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] [2024-08-15 18:25:39,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-15 18:25:39,321 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-15 18:25:39,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-15 18:25:39,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1133234710, now seen corresponding path program 1 times [2024-08-15 18:25:39,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-15 18:25:39,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536996333] [2024-08-15 18:25:39,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-15 18:25:39,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-15 18:25:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:25:39,386 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-15 18:25:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-15 18:25:39,441 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-15 18:25:39,443 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-15 18:25:39,445 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-08-15 18:25:39,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-08-15 18:25:39,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-08-15 18:25:39,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-15 18:25:39,452 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-08-15 18:25:39,457 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2024-08-15 18:25:39,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.08 06:25:39 BoogieIcfgContainer [2024-08-15 18:25:39,482 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-15 18:25:39,483 INFO L158 Benchmark]: Toolchain (without parser) took 1986.92ms. Allocated memory is still 203.4MB. Free memory was 173.6MB in the beginning and 153.5MB in the end (delta: 20.0MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2024-08-15 18:25:39,483 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 134.2MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:25:39,483 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 134.2MB. Free memory is still 108.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:25:39,484 INFO L158 Benchmark]: CACSL2BoogieTranslator took 515.36ms. Allocated memory is still 203.4MB. Free memory was 173.4MB in the beginning and 157.4MB in the end (delta: 16.0MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2024-08-15 18:25:39,484 INFO L158 Benchmark]: Boogie Preprocessor took 118.45ms. Allocated memory is still 203.4MB. Free memory was 157.4MB in the beginning and 153.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-15 18:25:39,484 INFO L158 Benchmark]: IcfgBuilder took 601.12ms. Allocated memory is still 203.4MB. Free memory was 153.2MB in the beginning and 130.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-08-15 18:25:39,485 INFO L158 Benchmark]: TraceAbstraction took 745.21ms. Allocated memory is still 203.4MB. Free memory was 129.2MB in the beginning and 153.5MB in the end (delta: -24.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-15 18:25:39,487 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.12ms. Allocated memory is still 134.2MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.09ms. Allocated memory is still 134.2MB. Free memory is still 108.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 515.36ms. Allocated memory is still 203.4MB. Free memory was 173.4MB in the beginning and 157.4MB in the end (delta: 16.0MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 118.45ms. Allocated memory is still 203.4MB. Free memory was 157.4MB in the beginning and 153.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 601.12ms. Allocated memory is still 203.4MB. Free memory was 153.2MB in the beginning and 130.1MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 745.21ms. Allocated memory is still 203.4MB. Free memory was 129.2MB in the beginning and 153.5MB in the end (delta: -24.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1049]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1006] SLL* list = malloc(sizeof(SLL)); [L1007] list->next = ((void*)0) [L1008] list->colour = BLACK [L1010] SLL* end = list; VAL [end={-1:0}, list={-1:0}] [L1013] COND FALSE !(__VERIFIER_nondet_int()) [L1034] end = ((void*)0) [L1035] end = list VAL [end={-1:0}, list={-1:0}] [L1038] COND FALSE !(!(((void*)0) != end)) VAL [end={-1:0}, list={-1:0}] [L1038] COND FALSE !(0) VAL [end={-1:0}, list={-1:0}] [L1039] EXPR end->colour VAL [end={-1:0}, list={-1:0}] [L1039] COND FALSE !(!(BLACK == end->colour)) [L1039] COND FALSE !(0) VAL [end={-1:0}, list={-1:0}] [L1041] COND TRUE ((void*)0) != end VAL [end={-1:0}, list={-1:0}] [L1043] EXPR end->colour VAL [end={-1:0}, list={-1:0}] [L1043] COND FALSE !(RED == end->colour) [L1049] EXPR end->next VAL [end={-1:0}, list={-1:0}] [L1049] COND TRUE !(end->next) [L1049] reach_error() VAL [end={-1:0}, list={-1:0}] - UnprovableResult [Line: 1039]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1038]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 47 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 36 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-08-15 18:25:39,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE