./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/list-ext3-properties/dll_nullified-1.i --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/dll_nullified-1.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 26998269 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/list-ext3-properties/dll_nullified-1.i ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/dll_nullified-1.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-2699826-m [2024-08-14 14:30:04,923 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:30:04,993 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:30:05,005 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:30:05,006 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:30:05,028 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:30:05,028 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:30:05,029 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:30:05,029 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:30:05,032 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:30:05,032 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:30:05,032 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:30:05,032 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:30:05,033 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:30:05,033 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:30:05,033 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:30:05,033 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:30:05,033 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:30:05,034 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:30:05,035 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:30:05,035 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:30:05,035 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:30:05,036 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:30:05,036 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:30:05,036 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:30:05,036 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:30:05,036 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:30:05,037 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:30:05,037 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:30:05,037 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:30:05,037 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:30:05,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:30:05,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:30:05,038 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:30:05,038 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:30:05,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:30:05,039 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:30:05,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:30:05,039 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:30:05,039 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:30:05,039 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:30:05,039 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:30:05,040 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:30:05,040 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:30:05,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:30:05,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:30:05,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:30:05,258 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:30:05,258 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:30:05,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext3-properties/dll_nullified-1.i [2024-08-14 14:30:06,457 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:30:06,638 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:30:06,639 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext3-properties/dll_nullified-1.i [2024-08-14 14:30:06,648 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74bd9033b/7b031b82910143feb26d047b93524df9/FLAGb9841cbd3 [2024-08-14 14:30:07,014 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74bd9033b/7b031b82910143feb26d047b93524df9 [2024-08-14 14:30:07,016 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:30:07,017 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:30:07,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/dll_nullified-1.yml/witness.yml [2024-08-14 14:30:07,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:30:07,082 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:30:07,088 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:30:07,088 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:30:07,092 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:30:07,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:30:07" (1/2) ... [2024-08-14 14:30:07,094 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c2b54f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:30:07, skipping insertion in model container [2024-08-14 14:30:07,094 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:30:07" (1/2) ... [2024-08-14 14:30:07,095 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@47ef5642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:30:07, skipping insertion in model container [2024-08-14 14:30:07,095 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:30:07" (2/2) ... [2024-08-14 14:30:07,096 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c2b54f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:07, skipping insertion in model container [2024-08-14 14:30:07,096 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:30:07" (2/2) ... [2024-08-14 14:30:07,133 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:30:07,335 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/list-ext3-properties/dll_nullified-1.i[24046,24059] [2024-08-14 14:30:07,341 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:30:07,351 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:30:07,402 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/list-ext3-properties/dll_nullified-1.i[24046,24059] [2024-08-14 14:30:07,403 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:30:07,433 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:30:07,434 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:07 WrapperNode [2024-08-14 14:30:07,434 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:30:07,436 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:30:07,436 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:30:07,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:30:07,444 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:07" (1/1) ... [2024-08-14 14:30:07,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:07" (1/1) ... [2024-08-14 14:30:07,455 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:07" (1/1) ... [2024-08-14 14:30:07,471 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 6 writes are split as follows [0, 6]. [2024-08-14 14:30:07,472 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:07" (1/1) ... [2024-08-14 14:30:07,472 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:07" (1/1) ... [2024-08-14 14:30:07,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:07" (1/1) ... [2024-08-14 14:30:07,483 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:07" (1/1) ... [2024-08-14 14:30:07,484 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:07" (1/1) ... [2024-08-14 14:30:07,491 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:30:07,492 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:30:07,492 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:30:07,492 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:30:07,493 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:07" (1/1) ... [2024-08-14 14:30:07,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:30:07,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:30:07,530 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) [2024-08-14 14:30:07,534 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 [2024-08-14 14:30:07,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:30:07,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:30:07,575 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:30:07,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2024-08-14 14:30:07,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2024-08-14 14:30:07,576 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2024-08-14 14:30:07,576 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2024-08-14 14:30:07,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:30:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:30:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:30:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-08-14 14:30:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-08-14 14:30:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:30:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:30:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:30:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2024-08-14 14:30:07,576 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2024-08-14 14:30:07,577 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2024-08-14 14:30:07,577 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2024-08-14 14:30:07,577 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2024-08-14 14:30:07,577 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2024-08-14 14:30:07,577 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2024-08-14 14:30:07,577 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2024-08-14 14:30:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2024-08-14 14:30:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2024-08-14 14:30:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2024-08-14 14:30:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2024-08-14 14:30:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2024-08-14 14:30:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2024-08-14 14:30:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2024-08-14 14:30:07,578 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2024-08-14 14:30:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2024-08-14 14:30:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2024-08-14 14:30:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure select [2024-08-14 14:30:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2024-08-14 14:30:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2024-08-14 14:30:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2024-08-14 14:30:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2024-08-14 14:30:07,579 INFO L130 BoogieDeclarations]: Found specification of procedure random [2024-08-14 14:30:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2024-08-14 14:30:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2024-08-14 14:30:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2024-08-14 14:30:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2024-08-14 14:30:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2024-08-14 14:30:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2024-08-14 14:30:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2024-08-14 14:30:07,580 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2024-08-14 14:30:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2024-08-14 14:30:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2024-08-14 14:30:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2024-08-14 14:30:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2024-08-14 14:30:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2024-08-14 14:30:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2024-08-14 14:30:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2024-08-14 14:30:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2024-08-14 14:30:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2024-08-14 14:30:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2024-08-14 14:30:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2024-08-14 14:30:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2024-08-14 14:30:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2024-08-14 14:30:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2024-08-14 14:30:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2024-08-14 14:30:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2024-08-14 14:30:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2024-08-14 14:30:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2024-08-14 14:30:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2024-08-14 14:30:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2024-08-14 14:30:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2024-08-14 14:30:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2024-08-14 14:30:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2024-08-14 14:30:07,583 INFO L130 BoogieDeclarations]: Found specification of procedure free [2024-08-14 14:30:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2024-08-14 14:30:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2024-08-14 14:30:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2024-08-14 14:30:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2024-08-14 14:30:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2024-08-14 14:30:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2024-08-14 14:30:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2024-08-14 14:30:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2024-08-14 14:30:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:30:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2024-08-14 14:30:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2024-08-14 14:30:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2024-08-14 14:30:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2024-08-14 14:30:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2024-08-14 14:30:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2024-08-14 14:30:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2024-08-14 14:30:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2024-08-14 14:30:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2024-08-14 14:30:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2024-08-14 14:30:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2024-08-14 14:30:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure system [2024-08-14 14:30:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2024-08-14 14:30:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2024-08-14 14:30:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2024-08-14 14:30:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2024-08-14 14:30:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2024-08-14 14:30:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2024-08-14 14:30:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure div [2024-08-14 14:30:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2024-08-14 14:30:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2024-08-14 14:30:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2024-08-14 14:30:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2024-08-14 14:30:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2024-08-14 14:30:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2024-08-14 14:30:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2024-08-14 14:30:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2024-08-14 14:30:07,586 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2024-08-14 14:30:07,587 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2024-08-14 14:30:07,587 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2024-08-14 14:30:07,587 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2024-08-14 14:30:07,587 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2024-08-14 14:30:07,587 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2024-08-14 14:30:07,587 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2024-08-14 14:30:07,587 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2024-08-14 14:30:07,588 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2024-08-14 14:30:07,588 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2024-08-14 14:30:07,588 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2024-08-14 14:30:07,588 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2024-08-14 14:30:07,588 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2024-08-14 14:30:07,588 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2024-08-14 14:30:07,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-08-14 14:30:07,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:30:07,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-08-14 14:30:07,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-08-14 14:30:07,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-08-14 14:30:07,589 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:30:07,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-08-14 14:30:07,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-08-14 14:30:07,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:30:07,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-08-14 14:30:07,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:30:07,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:30:07,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:30:07,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-08-14 14:30:07,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:30:07,740 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:30:07,742 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:30:07,761 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2024-08-14 14:30:07,766 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L78: havoc #t~nondet1; [2024-08-14 14:30:07,817 INFO L1266 $ProcedureCfgBuilder]: dead code at ProgramPoint L83: havoc #t~nondet2; [2024-08-14 14:30:07,876 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-08-14 14:30:07,876 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:30:07,885 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:30:07,886 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:30:07,886 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:30:07 BoogieIcfgContainer [2024-08-14 14:30:07,886 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:30:07,888 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:30:07,888 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:30:07,890 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:30:07,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:30:07" (1/4) ... [2024-08-14 14:30:07,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cac931f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:30:07, skipping insertion in model container [2024-08-14 14:30:07,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:30:07" (2/4) ... [2024-08-14 14:30:07,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cac931f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:30:07, skipping insertion in model container [2024-08-14 14:30:07,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:30:07" (3/4) ... [2024-08-14 14:30:07,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cac931f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:30:07, skipping insertion in model container [2024-08-14 14:30:07,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:30:07" (4/4) ... [2024-08-14 14:30:07,893 INFO L119 eAbstractionObserver]: Analyzing ICFG dll_nullified-1.i [2024-08-14 14:30:07,893 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:30:07,912 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:30:07,913 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-08-14 14:30:07,944 INFO L92 WitnessUtils]: Constructing product of automaton with 47 states and violation witness of the following lengths: [21] [2024-08-14 14:30:07,947 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 47 states, 38 states have (on average 1.394736842105263) internal successors, (53), 39 states have internal predecessors, (53), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-08-14 14:30:08,063 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 595 states to 90 states. [2024-08-14 14:30:08,080 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:30:08,088 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;@302009e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:30:08,088 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-08-14 14:30:08,090 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2024-08-14 14:30:08,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-08-14 14:30:08,095 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:30:08,096 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:30:08,096 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:30:08,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:30:08,101 INFO L85 PathProgramCache]: Analyzing trace with hash -677660009, now seen corresponding path program 1 times [2024-08-14 14:30:08,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:30:08,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431023088] [2024-08-14 14:30:08,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:30:08,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:30:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:08,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-08-14 14:30:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:08,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-08-14 14:30:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-14 14:30:08,609 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-08-14 14:30:08,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-14 14:30:08,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431023088] [2024-08-14 14:30:08,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431023088] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-14 14:30:08,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-14 14:30:08,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-14 14:30:08,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305314122] [2024-08-14 14:30:08,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-14 14:30:08,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-14 14:30:08,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-14 14:30:08,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-14 14:30:08,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 14:30:08,647 INFO L87 Difference]: Start difference. First operand 90 states. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-08-14 14:30:08,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-08-14 14:30:08,687 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2024-08-14 14:30:08,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-14 14:30:08,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2024-08-14 14:30:08,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-08-14 14:30:08,691 INFO L225 Difference]: With dead ends: 90 [2024-08-14 14:30:08,692 INFO L226 Difference]: Without dead ends: 90 [2024-08-14 14:30:08,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-14 14:30:08,697 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 6 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-08-14 14:30:08,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 48 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-08-14 14:30:08,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-08-14 14:30:08,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 65. [2024-08-14 14:30:08,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 59 states have (on average 1.1694915254237288) internal successors, (69), 59 states have internal predecessors, (69), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-08-14 14:30:08,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 74 transitions. [2024-08-14 14:30:08,721 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 74 transitions. Word has length 57 [2024-08-14 14:30:08,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-08-14 14:30:08,722 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 74 transitions. [2024-08-14 14:30:08,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-08-14 14:30:08,722 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 74 transitions. [2024-08-14 14:30:08,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-08-14 14:30:08,723 INFO L187 NwaCegarLoop]: Found error trace [2024-08-14 14:30:08,723 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-08-14 14:30:08,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-14 14:30:08,723 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-14 14:30:08,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-14 14:30:08,724 INFO L85 PathProgramCache]: Analyzing trace with hash 121258344, now seen corresponding path program 1 times [2024-08-14 14:30:08,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-14 14:30:08,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401922284] [2024-08-14 14:30:08,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-14 14:30:08,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-14 14:30:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:30:08,838 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-14 14:30:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-14 14:30:08,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-14 14:30:08,957 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-14 14:30:08,958 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-08-14 14:30:08,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-14 14:30:08,961 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-08-14 14:30:08,965 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:30:08,997 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:30:08 BoogieIcfgContainer [2024-08-14 14:30:08,997 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:30:08,997 INFO L158 Benchmark]: Toolchain (without parser) took 1914.99ms. Allocated memory was 138.4MB in the beginning and 218.1MB in the end (delta: 79.7MB). Free memory was 63.9MB in the beginning and 170.5MB in the end (delta: -106.6MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. [2024-08-14 14:30:08,998 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 138.4MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:30:08,998 INFO L158 Benchmark]: Witness Parser took 0.09ms. Allocated memory is still 138.4MB. Free memory was 66.8MB in the beginning and 66.6MB in the end (delta: 251.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:30:08,998 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.81ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 63.7MB in the beginning and 145.8MB in the end (delta: -82.1MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2024-08-14 14:30:08,999 INFO L158 Benchmark]: Boogie Preprocessor took 55.83ms. Allocated memory is still 180.4MB. Free memory was 145.8MB in the beginning and 142.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-14 14:30:08,999 INFO L158 Benchmark]: IcfgBuilder took 393.94ms. Allocated memory is still 180.4MB. Free memory was 142.8MB in the beginning and 118.5MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-08-14 14:30:08,999 INFO L158 Benchmark]: TraceAbstraction took 1109.16ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 117.6MB in the beginning and 170.5MB in the end (delta: -52.9MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2024-08-14 14:30:09,004 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 138.4MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.09ms. Allocated memory is still 138.4MB. Free memory was 66.8MB in the beginning and 66.6MB in the end (delta: 251.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.81ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 63.7MB in the beginning and 145.8MB in the end (delta: -82.1MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.83ms. Allocated memory is still 180.4MB. Free memory was 145.8MB in the beginning and 142.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 393.94ms. Allocated memory is still 180.4MB. Free memory was 142.8MB in the beginning and 118.5MB in the end (delta: 24.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1109.16ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 117.6MB in the beginning and 170.5MB in the end (delta: -52.9MB). Peak memory consumption was 66.4MB. 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: 616]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L599] const int len = 5; VAL [len=5] [L600] CALL, EXPR dll_create(len) VAL [\old(len)=5] [L579] DLL head = ((void *)0); VAL [\old(len)=5, head={0:0}, len=5] [L580] COND TRUE len > 0 VAL [\old(len)=5, head={0:0}, len=5] [L581] DLL new_head = (DLL) malloc(sizeof(struct node)); [L582] COND FALSE !(((void *)0) == new_head) VAL [\old(len)=5, head={0:0}, len=5, new_head={-1:0}] [L585] new_head->data_0 = 0 [L586] new_head->data_1 = 0 [L587] new_head->data_2 = __VERIFIER_nondet_int() == len? 1 : 0 [L588] new_head->next = head [L589] new_head->prev = ((void *)0) VAL [\old(len)=5, head={0:0}, len=5, new_head={-1:0}] [L590] COND FALSE !(\read(head)) VAL [\old(len)=5, len=5, new_head={-1:0}] [L593] head = new_head [L594] len-- [L580] COND TRUE len > 0 VAL [\old(len)=5, head={-1:0}, len=4] [L581] DLL new_head = (DLL) malloc(sizeof(struct node)); [L582] COND FALSE !(((void *)0) == new_head) VAL [\old(len)=5, head={-1:0}, len=4, new_head={-2:0}] [L585] new_head->data_0 = 0 [L586] new_head->data_1 = 0 [L587] new_head->data_2 = __VERIFIER_nondet_int() == len? 1 : 0 [L588] new_head->next = head [L589] new_head->prev = ((void *)0) VAL [\old(len)=5, head={-1:0}, len=4, new_head={-2:0}] [L590] COND TRUE \read(head) [L591] head->prev = new_head VAL [\old(len)=5, len=4, new_head={-2:0}] [L593] head = new_head [L594] len-- [L580] COND TRUE len > 0 VAL [\old(len)=5, head={-2:0}, len=3] [L581] DLL new_head = (DLL) malloc(sizeof(struct node)); [L582] COND FALSE !(((void *)0) == new_head) VAL [\old(len)=5, head={-2:0}, len=3, new_head={-3:0}] [L585] new_head->data_0 = 0 [L586] new_head->data_1 = 0 [L587] new_head->data_2 = __VERIFIER_nondet_int() == len? 1 : 0 [L588] new_head->next = head [L589] new_head->prev = ((void *)0) VAL [\old(len)=5, head={-2:0}, len=3, new_head={-3:0}] [L590] COND TRUE \read(head) [L591] head->prev = new_head VAL [\old(len)=5, len=3, new_head={-3:0}] [L593] head = new_head [L594] len-- [L580] COND TRUE len > 0 VAL [\old(len)=5, head={-3:0}, len=2] [L581] DLL new_head = (DLL) malloc(sizeof(struct node)); [L582] COND FALSE !(((void *)0) == new_head) VAL [\old(len)=5, head={-3:0}, len=2, new_head={-4:0}] [L585] new_head->data_0 = 0 [L586] new_head->data_1 = 0 [L587] new_head->data_2 = __VERIFIER_nondet_int() == len? 1 : 0 [L588] new_head->next = head [L589] new_head->prev = ((void *)0) VAL [\old(len)=5, head={-3:0}, len=2, new_head={-4:0}] [L590] COND TRUE \read(head) [L591] head->prev = new_head VAL [\old(len)=5, len=2, new_head={-4:0}] [L593] head = new_head [L594] len-- [L580] COND TRUE len > 0 VAL [\old(len)=5, head={-4:0}, len=1] [L581] DLL new_head = (DLL) malloc(sizeof(struct node)); [L582] COND FALSE !(((void *)0) == new_head) VAL [\old(len)=5, head={-4:0}, len=1, new_head={-5:0}] [L585] new_head->data_0 = 0 [L586] new_head->data_1 = 0 [L587] new_head->data_2 = __VERIFIER_nondet_int() == len? 1 : 0 [L588] new_head->next = head [L589] new_head->prev = ((void *)0) VAL [\old(len)=5, head={-4:0}, len=1, new_head={-5:0}] [L590] COND TRUE \read(head) [L591] head->prev = new_head VAL [\old(len)=5, len=1, new_head={-5:0}] [L593] head = new_head [L594] len-- [L580] COND FALSE !(len > 0) VAL [\old(len)=5, head={-5:0}] [L596] return head; VAL [\old(len)=5, \result={-5:0}] [L600] RET, EXPR dll_create(len) VAL [len=5] [L600] DLL head = dll_create(len); [L601] head->next VAL [head={-5:0}, len=5] [L601] COND TRUE head->next [L602] EXPR head->data_0 [L602] EXPR 0 != head->data_0 || 0 != head->data_1 VAL [head={-5:0}, len=5] [L602] EXPR 0 != head->data_0 || 0 != head->data_1 [L602] EXPR head->data_1 [L602] EXPR 0 != head->data_0 || 0 != head->data_1 VAL [head={-5:0}, len=5] [L602] 0 != head->data_0 || 0 != head->data_1 || 0 != head->data_2 VAL [head={-5:0}, len=5] [L602] 0 != head->data_0 || 0 != head->data_1 || 0 != head->data_2 [L602] EXPR head->data_2 [L602] 0 != head->data_0 || 0 != head->data_1 || 0 != head->data_2 VAL [head={-5:0}, len=5] [L602] COND TRUE 0 != head->data_0 || 0 != head->data_1 || 0 != head->data_2 [L616] reach_error() VAL [head={-5:0}, len=5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 31 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 25 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 71 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 75/75 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! [2024-08-14 14:30:09,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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