./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b8dbc81d Calling Ultimate with: /usr/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/AutomizerMemDerefMemtrack.xml -i ../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 115e066856baca443b44a0f6b5ce54f74ba2b2820e5612bf4393c0e893767d55 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 23:58:59,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 23:58:59,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 23:58:59,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 23:58:59,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 23:58:59,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 23:58:59,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 23:58:59,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 23:58:59,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 23:58:59,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 23:58:59,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 23:58:59,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 23:58:59,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 23:58:59,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 23:58:59,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 23:58:59,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 23:58:59,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 23:58:59,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 23:58:59,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 23:58:59,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 23:58:59,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 23:58:59,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 23:58:59,837 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 23:58:59,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 23:58:59,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 23:58:59,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 23:58:59,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 23:58:59,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 23:58:59,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 23:58:59,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 23:58:59,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 23:58:59,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 23:58:59,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 23:58:59,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 23:58:59,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 23:58:59,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 23:58:59,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 23:58:59,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 23:58:59,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 23:58:59,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 23:58:59,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 23:58:59,862 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-31 23:58:59,894 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 23:58:59,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 23:58:59,895 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 23:58:59,896 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 23:58:59,896 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 23:58:59,896 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 23:58:59,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 23:58:59,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 23:58:59,897 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 23:58:59,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 23:58:59,898 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 23:58:59,898 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 23:58:59,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 23:58:59,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 23:58:59,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 23:58:59,899 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-31 23:58:59,899 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-31 23:58:59,899 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-31 23:58:59,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 23:58:59,899 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-31 23:58:59,899 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 23:58:59,899 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 23:58:59,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 23:58:59,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 23:58:59,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 23:58:59,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 23:58:59,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 23:58:59,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 23:58:59,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 23:58:59,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 23:58:59,901 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 23:58:59,901 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 23:58:59,901 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 23:58:59,901 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 23:58:59,902 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 115e066856baca443b44a0f6b5ce54f74ba2b2820e5612bf4393c0e893767d55 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 23:59:00,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 23:59:00,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 23:59:00,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 23:59:00,182 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 23:59:00,182 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 23:59:00,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2023-08-31 23:59:01,144 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 23:59:01,428 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 23:59:01,429 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i [2023-08-31 23:59:01,444 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57154e2f9/8655ccb621d44324b5d154ab7f215e5d/FLAG6e2b49893 [2023-08-31 23:59:01,454 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57154e2f9/8655ccb621d44324b5d154ab7f215e5d [2023-08-31 23:59:01,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 23:59:01,458 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 23:59:01,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 23:59:01,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 23:59:01,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 23:59:01,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 11:59:01" (1/1) ... [2023-08-31 23:59:01,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52c130b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:59:01, skipping insertion in model container [2023-08-31 23:59:01,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 11:59:01" (1/1) ... [2023-08-31 23:59:01,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 23:59:01,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 23:59:01,867 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i[63494,63507] [2023-08-31 23:59:01,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 23:59:01,915 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 23:59:01,972 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/elimination_backoff_stack.i[63494,63507] [2023-08-31 23:59:01,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 23:59:02,083 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 23:59:02,083 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 23:59:02,088 INFO L208 MainTranslator]: Completed translation [2023-08-31 23:59:02,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:59:02 WrapperNode [2023-08-31 23:59:02,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 23:59:02,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 23:59:02,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 23:59:02,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 23:59:02,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:59:02" (1/1) ... [2023-08-31 23:59:02,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:59:02" (1/1) ... [2023-08-31 23:59:02,227 INFO L138 Inliner]: procedures = 397, calls = 214, calls flagged for inlining = 52, calls inlined = 211, statements flattened = 3738 [2023-08-31 23:59:02,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 23:59:02,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 23:59:02,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 23:59:02,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 23:59:02,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:59:02" (1/1) ... [2023-08-31 23:59:02,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:59:02" (1/1) ... [2023-08-31 23:59:02,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:59:02" (1/1) ... [2023-08-31 23:59:02,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:59:02" (1/1) ... [2023-08-31 23:59:02,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:59:02" (1/1) ... [2023-08-31 23:59:02,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:59:02" (1/1) ... [2023-08-31 23:59:02,362 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:59:02" (1/1) ... [2023-08-31 23:59:02,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:59:02" (1/1) ... [2023-08-31 23:59:02,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 23:59:02,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 23:59:02,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 23:59:02,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 23:59:02,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:59:02" (1/1) ... [2023-08-31 23:59:02,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 23:59:02,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 23:59:02,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 23:59:02,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 23:59:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-31 23:59:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 23:59:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-31 23:59:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 23:59:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 23:59:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-31 23:59:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2023-08-31 23:59:02,480 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2023-08-31 23:59:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2023-08-31 23:59:02,481 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2023-08-31 23:59:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2023-08-31 23:59:02,481 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2023-08-31 23:59:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 23:59:02,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 23:59:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 23:59:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-31 23:59:02,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-31 23:59:02,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 23:59:02,482 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2023-08-31 23:59:02,482 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2023-08-31 23:59:02,482 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2023-08-31 23:59:02,482 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2023-08-31 23:59:02,482 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2023-08-31 23:59:02,482 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2023-08-31 23:59:02,483 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2023-08-31 23:59:02,483 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2023-08-31 23:59:02,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 23:59:02,486 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 23:59:02,867 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 23:59:02,869 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 23:59:06,058 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 23:59:09,571 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 23:59:09,571 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 23:59:09,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:59:09 BoogieIcfgContainer [2023-08-31 23:59:09,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 23:59:09,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 23:59:09,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 23:59:09,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 23:59:09,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 11:59:01" (1/3) ... [2023-08-31 23:59:09,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100aa751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 11:59:09, skipping insertion in model container [2023-08-31 23:59:09,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:59:02" (2/3) ... [2023-08-31 23:59:09,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100aa751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 11:59:09, skipping insertion in model container [2023-08-31 23:59:09,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:59:09" (3/3) ... [2023-08-31 23:59:09,582 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_backoff_stack.i [2023-08-31 23:59:09,596 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 23:59:09,596 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1344 error locations. [2023-08-31 23:59:09,596 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 23:59:11,125 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 23:59:11,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 3535 places, 3660 transitions, 7355 flow [2023-08-31 23:59:15,872 INFO L130 PetriNetUnfolder]: 147/3653 cut-off events. [2023-08-31 23:59:15,873 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 23:59:16,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3675 conditions, 3653 events. 147/3653 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 30003 event pairs, 0 based on Foata normal form. 0/2162 useless extension candidates. Maximal degree in co-relation 3597. Up to 6 conditions per place. [2023-08-31 23:59:16,158 INFO L82 GeneralOperation]: Start removeDead. Operand has 3535 places, 3660 transitions, 7355 flow [2023-08-31 23:59:16,731 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 3528 places, 3653 transitions, 7327 flow [2023-08-31 23:59:16,733 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 23:59:16,739 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 3528 places, 3653 transitions, 7327 flow [2023-08-31 23:59:16,741 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 3528 places, 3653 transitions, 7327 flow [2023-08-31 23:59:16,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 3528 places, 3653 transitions, 7327 flow [2023-08-31 23:59:21,053 INFO L130 PetriNetUnfolder]: 147/3653 cut-off events. [2023-08-31 23:59:21,054 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 23:59:21,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3675 conditions, 3653 events. 147/3653 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 29976 event pairs, 0 based on Foata normal form. 0/2162 useless extension candidates. Maximal degree in co-relation 3597. Up to 6 conditions per place. [2023-08-31 23:59:23,128 INFO L119 LiptonReduction]: Number of co-enabled transitions 10913374 [2023-08-31 23:59:56,332 WARN L222 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 272 DAG size of output: 237 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:00:04,964 WARN L222 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 290 DAG size of output: 252 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:02:39,371 WARN L222 SmtUtils]: Spent 2.53m on a formula simplification. DAG size of input: 524 DAG size of output: 424 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:03:15,548 WARN L222 SmtUtils]: Spent 36.17s on a formula simplification that was a NOOP. DAG size: 416 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:05:15,436 WARN L222 SmtUtils]: Spent 2.00m on a formula simplification. DAG size of input: 557 DAG size of output: 454 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:05:56,448 WARN L222 SmtUtils]: Spent 41.01s on a formula simplification that was a NOOP. DAG size: 446 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:06:22,036 WARN L222 SmtUtils]: Spent 8.44s on a formula simplification. DAG size of input: 272 DAG size of output: 237 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:06:35,224 WARN L222 SmtUtils]: Spent 10.42s on a formula simplification. DAG size of input: 290 DAG size of output: 252 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:07:56,502 WARN L222 SmtUtils]: Spent 1.31m on a formula simplification. DAG size of input: 441 DAG size of output: 395 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:08:18,649 WARN L222 SmtUtils]: Spent 22.14s on a formula simplification that was a NOOP. DAG size: 390 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:09:54,015 WARN L222 SmtUtils]: Spent 1.59m on a formula simplification. DAG size of input: 480 DAG size of output: 434 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:10:20,337 WARN L222 SmtUtils]: Spent 26.32s on a formula simplification that was a NOOP. DAG size: 427 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:11:01,778 WARN L222 SmtUtils]: Spent 11.86s on a formula simplification. DAG size of input: 279 DAG size of output: 201 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:11:20,168 WARN L222 SmtUtils]: Spent 14.69s on a formula simplification. DAG size of input: 301 DAG size of output: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:12:57,799 WARN L222 SmtUtils]: Spent 1.56m on a formula simplification. DAG size of input: 459 DAG size of output: 328 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-09-01 00:13:23,111 WARN L222 SmtUtils]: Spent 25.31s on a formula simplification that was a NOOP. DAG size: 318 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) Killed by 15