./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/valid-memsafety.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_46-escape_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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/goblint-regression/04-mutex_46-escape_nr.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 b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 21:15:30,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 21:15:30,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 21:15:30,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 21:15:30,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 21:15:30,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 21:15:30,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 21:15:30,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 21:15:30,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 21:15:30,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 21:15:30,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 21:15:30,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 21:15:30,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 21:15:30,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 21:15:30,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 21:15:30,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 21:15:30,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 21:15:30,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 21:15:30,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 21:15:30,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 21:15:30,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 21:15:30,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 21:15:30,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 21:15:30,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 21:15:30,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 21:15:30,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 21:15:30,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 21:15:30,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 21:15:30,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 21:15:30,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 21:15:30,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 21:15:30,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 21:15:30,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 21:15:30,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 21:15:30,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 21:15:30,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 21:15:30,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 21:15:30,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 21:15:30,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 21:15:30,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 21:15:30,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 21:15:30,324 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-08-29 21:15:30,355 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 21:15:30,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 21:15:30,357 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 21:15:30,357 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 21:15:30,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 21:15:30,358 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 21:15:30,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 21:15:30,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 21:15:30,359 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 21:15:30,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 21:15:30,360 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 21:15:30,360 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 21:15:30,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 21:15:30,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 21:15:30,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 21:15:30,361 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-29 21:15:30,361 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-29 21:15:30,361 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-29 21:15:30,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 21:15:30,361 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-29 21:15:30,361 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 21:15:30,362 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 21:15:30,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 21:15:30,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 21:15:30,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 21:15:30,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 21:15:30,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 21:15:30,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 21:15:30,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 21:15:30,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 21:15:30,363 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 21:15:30,363 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 21:15:30,364 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 21:15:30,364 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 21:15:30,364 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 21:15:30,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 21:15:30,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 21:15:30,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 21:15:30,698 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 21:15:30,698 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 21:15:30,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_46-escape_nr.i [2023-08-29 21:15:31,840 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 21:15:32,091 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 21:15:32,091 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_46-escape_nr.i [2023-08-29 21:15:32,106 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2652fe7cc/0a510f35d08a43ebb82cd8654b926c92/FLAG5749dbfa2 [2023-08-29 21:15:32,118 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2652fe7cc/0a510f35d08a43ebb82cd8654b926c92 [2023-08-29 21:15:32,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 21:15:32,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 21:15:32,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 21:15:32,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 21:15:32,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 21:15:32,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:15:32" (1/1) ... [2023-08-29 21:15:32,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cd9ab3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:15:32, skipping insertion in model container [2023-08-29 21:15:32,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:15:32" (1/1) ... [2023-08-29 21:15:32,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 21:15:32,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 21:15:32,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 21:15:32,571 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-08-29 21:15:32,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@23fde548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:15:32, skipping insertion in model container [2023-08-29 21:15:32,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 21:15:32,587 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-08-29 21:15:32,589 INFO L158 Benchmark]: Toolchain (without parser) took 465.16ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 45.0MB in the beginning and 65.2MB in the end (delta: -20.3MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2023-08-29 21:15:32,589 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 69.2MB. Free memory was 46.7MB in the beginning and 46.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 21:15:32,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.58ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 44.8MB in the beginning and 65.2MB in the end (delta: -20.5MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2023-08-29 21:15:32,592 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 69.2MB. Free memory was 46.7MB in the beginning and 46.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 461.58ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 44.8MB in the beginning and 65.2MB in the end (delta: -20.5MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 922]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/goblint-regression/04-mutex_46-escape_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 21:15:34,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 21:15:34,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 21:15:34,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 21:15:34,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 21:15:34,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 21:15:34,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 21:15:34,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 21:15:34,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 21:15:34,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 21:15:34,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 21:15:34,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 21:15:34,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 21:15:34,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 21:15:34,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 21:15:34,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 21:15:34,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 21:15:34,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 21:15:34,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 21:15:34,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 21:15:34,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 21:15:34,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 21:15:34,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 21:15:34,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 21:15:34,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 21:15:34,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 21:15:34,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 21:15:34,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 21:15:34,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 21:15:34,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 21:15:34,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 21:15:34,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 21:15:34,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 21:15:34,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 21:15:34,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 21:15:34,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 21:15:34,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 21:15:34,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 21:15:34,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 21:15:34,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 21:15:34,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 21:15:34,308 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-08-29 21:15:34,355 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 21:15:34,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 21:15:34,356 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 21:15:34,356 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 21:15:34,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 21:15:34,357 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 21:15:34,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 21:15:34,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 21:15:34,358 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 21:15:34,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 21:15:34,359 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 21:15:34,359 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 21:15:34,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 21:15:34,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 21:15:34,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 21:15:34,360 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-08-29 21:15:34,360 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-08-29 21:15:34,360 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-08-29 21:15:34,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 21:15:34,361 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-08-29 21:15:34,361 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-08-29 21:15:34,361 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-08-29 21:15:34,361 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 21:15:34,361 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 21:15:34,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 21:15:34,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 21:15:34,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 21:15:34,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 21:15:34,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 21:15:34,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 21:15:34,363 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-08-29 21:15:34,363 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-08-29 21:15:34,363 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 21:15:34,363 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 21:15:34,363 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 21:15:34,364 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-08-29 21:15:34,364 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 21:15:34,364 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 21:15:34,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 21:15:34,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 21:15:34,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 21:15:34,663 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 21:15:34,663 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 21:15:34,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_46-escape_nr.i [2023-08-29 21:15:35,900 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 21:15:36,161 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 21:15:36,162 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_46-escape_nr.i [2023-08-29 21:15:36,173 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d464e059/30b0e2ad75414c728cf1c3fb945375ff/FLAG0c8d0efb7 [2023-08-29 21:15:36,187 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d464e059/30b0e2ad75414c728cf1c3fb945375ff [2023-08-29 21:15:36,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 21:15:36,191 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 21:15:36,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 21:15:36,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 21:15:36,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 21:15:36,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:15:36" (1/1) ... [2023-08-29 21:15:36,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd61903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:15:36, skipping insertion in model container [2023-08-29 21:15:36,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:15:36" (1/1) ... [2023-08-29 21:15:36,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 21:15:36,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 21:15:36,603 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 21:15:36,620 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-08-29 21:15:36,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 21:15:36,666 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 21:15:36,677 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 21:15:36,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 21:15:36,775 INFO L208 MainTranslator]: Completed translation [2023-08-29 21:15:36,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:15:36 WrapperNode [2023-08-29 21:15:36,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 21:15:36,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 21:15:36,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 21:15:36,777 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 21:15:36,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:15:36" (1/1) ... [2023-08-29 21:15:36,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:15:36" (1/1) ... [2023-08-29 21:15:36,843 INFO L138 Inliner]: procedures = 264, calls = 27, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2023-08-29 21:15:36,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 21:15:36,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 21:15:36,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 21:15:36,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 21:15:36,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:15:36" (1/1) ... [2023-08-29 21:15:36,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:15:36" (1/1) ... [2023-08-29 21:15:36,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:15:36" (1/1) ... [2023-08-29 21:15:36,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:15:36" (1/1) ... [2023-08-29 21:15:36,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:15:36" (1/1) ... [2023-08-29 21:15:36,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:15:36" (1/1) ... [2023-08-29 21:15:36,886 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:15:36" (1/1) ... [2023-08-29 21:15:36,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:15:36" (1/1) ... [2023-08-29 21:15:36,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 21:15:36,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 21:15:36,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 21:15:36,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 21:15:36,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:15:36" (1/1) ... [2023-08-29 21:15:36,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 21:15:36,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 21:15:36,930 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) [2023-08-29 21:15:36,958 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 [2023-08-29 21:15:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-08-29 21:15:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 21:15:36,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 21:15:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-08-29 21:15:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-08-29 21:15:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 21:15:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 21:15:36,974 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 21:15:36,974 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 21:15:36,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 21:15:36,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 21:15:36,976 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 21:15:37,103 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 21:15:37,104 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 21:15:37,410 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 21:15:37,416 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 21:15:37,417 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 21:15:37,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:15:37 BoogieIcfgContainer [2023-08-29 21:15:37,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 21:15:37,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 21:15:37,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 21:15:37,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 21:15:37,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:15:36" (1/3) ... [2023-08-29 21:15:37,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25f352dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:15:37, skipping insertion in model container [2023-08-29 21:15:37,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:15:36" (2/3) ... [2023-08-29 21:15:37,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25f352dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:15:37, skipping insertion in model container [2023-08-29 21:15:37,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:15:37" (3/3) ... [2023-08-29 21:15:37,426 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_46-escape_nr.i [2023-08-29 21:15:37,440 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 21:15:37,440 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2023-08-29 21:15:37,440 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 21:15:37,493 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 21:15:37,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 92 transitions, 192 flow [2023-08-29 21:15:37,574 INFO L130 PetriNetUnfolder]: 1/91 cut-off events. [2023-08-29 21:15:37,574 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:15:37,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 1/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 126 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 6. Up to 2 conditions per place. [2023-08-29 21:15:37,577 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 92 transitions, 192 flow [2023-08-29 21:15:37,581 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 87 transitions, 180 flow [2023-08-29 21:15:37,585 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 21:15:37,606 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 87 transitions, 180 flow [2023-08-29 21:15:37,610 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 87 transitions, 180 flow [2023-08-29 21:15:37,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 87 transitions, 180 flow [2023-08-29 21:15:37,636 INFO L130 PetriNetUnfolder]: 1/87 cut-off events. [2023-08-29 21:15:37,637 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:15:37,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 87 events. 1/87 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 103 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 6. Up to 2 conditions per place. [2023-08-29 21:15:37,639 INFO L119 LiptonReduction]: Number of co-enabled transitions 544 [2023-08-29 21:15:46,504 INFO L134 LiptonReduction]: Checked pairs total: 1989 [2023-08-29 21:15:46,504 INFO L136 LiptonReduction]: Total number of compositions: 107 [2023-08-29 21:15:46,516 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 21:15:46,541 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=All, 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;@50d7b574, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 21:15:46,541 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-29 21:15:46,543 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 21:15:46,543 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:15:46,543 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:15:46,544 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 21:15:46,544 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2023-08-29 21:15:46,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:15:46,548 INFO L85 PathProgramCache]: Analyzing trace with hash 341, now seen corresponding path program 1 times [2023-08-29 21:15:46,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:15:46,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2030103178] [2023-08-29 21:15:46,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:15:46,571 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:15:46,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:15:46,589 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:15:46,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-08-29 21:15:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:15:46,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-08-29 21:15:46,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:15:46,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:15:46,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:15:46,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:15:46,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2030103178] [2023-08-29 21:15:46,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2030103178] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:15:46,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:15:46,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 21:15:46,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848360984] [2023-08-29 21:15:46,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:15:46,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 21:15:46,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:15:46,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 21:15:46,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 21:15:46,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 199 [2023-08-29 21:15:46,700 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 28 transitions, 62 flow. Second operand has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:46,700 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:15:46,700 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 199 [2023-08-29 21:15:46,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:15:46,840 INFO L130 PetriNetUnfolder]: 30/91 cut-off events. [2023-08-29 21:15:46,840 INFO L131 PetriNetUnfolder]: For 3/4 co-relation queries the response was YES. [2023-08-29 21:15:46,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 91 events. 30/91 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 349 event pairs, 30 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 158. Up to 76 conditions per place. [2023-08-29 21:15:46,842 INFO L137 encePairwiseOnDemand]: 190/199 looper letters, 15 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2023-08-29 21:15:46,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 74 flow [2023-08-29 21:15:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 21:15:46,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 21:15:46,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 204 transitions. [2023-08-29 21:15:46,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5125628140703518 [2023-08-29 21:15:46,869 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 204 transitions. [2023-08-29 21:15:46,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 204 transitions. [2023-08-29 21:15:46,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:15:46,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 204 transitions. [2023-08-29 21:15:46,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 102.0) internal successors, (204), 2 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:46,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:46,880 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:46,882 INFO L175 Difference]: Start difference. First operand has 31 places, 28 transitions, 62 flow. Second operand 2 states and 204 transitions. [2023-08-29 21:15:46,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 74 flow [2023-08-29 21:15:46,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 19 transitions, 70 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:15:46,885 INFO L231 Difference]: Finished difference. Result has 22 places, 19 transitions, 40 flow [2023-08-29 21:15:46,887 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=22, PETRI_TRANSITIONS=19} [2023-08-29 21:15:46,890 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -9 predicate places. [2023-08-29 21:15:46,890 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 19 transitions, 40 flow [2023-08-29 21:15:46,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 90.5) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:46,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:15:46,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-29 21:15:46,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-08-29 21:15:47,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:15:47,099 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2023-08-29 21:15:47,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:15:47,099 INFO L85 PathProgramCache]: Analyzing trace with hash 335264, now seen corresponding path program 1 times [2023-08-29 21:15:47,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:15:47,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [895763657] [2023-08-29 21:15:47,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:15:47,100 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:15:47,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:15:47,109 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:15:47,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-08-29 21:15:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:15:47,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 21:15:47,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:15:47,265 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-08-29 21:15:47,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 19 [2023-08-29 21:15:47,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:15:47,290 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:15:47,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:15:47,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [895763657] [2023-08-29 21:15:47,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [895763657] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:15:47,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:15:47,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 21:15:47,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019809317] [2023-08-29 21:15:47,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:15:47,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 21:15:47,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:15:47,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 21:15:47,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 21:15:47,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 199 [2023-08-29 21:15:47,439 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 19 transitions, 40 flow. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:47,439 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:15:47,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 199 [2023-08-29 21:15:47,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:15:47,510 INFO L130 PetriNetUnfolder]: 24/71 cut-off events. [2023-08-29 21:15:47,510 INFO L131 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2023-08-29 21:15:47,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 71 events. 24/71 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 233 event pairs, 24 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 134. Up to 60 conditions per place. [2023-08-29 21:15:47,511 INFO L137 encePairwiseOnDemand]: 194/199 looper letters, 11 selfloop transitions, 3 changer transitions 0/17 dead transitions. [2023-08-29 21:15:47,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 17 transitions, 64 flow [2023-08-29 21:15:47,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 21:15:47,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 21:15:47,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 320 transitions. [2023-08-29 21:15:47,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4020100502512563 [2023-08-29 21:15:47,515 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 320 transitions. [2023-08-29 21:15:47,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 320 transitions. [2023-08-29 21:15:47,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:15:47,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 320 transitions. [2023-08-29 21:15:47,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:47,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 199.0) internal successors, (995), 5 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:47,520 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 199.0) internal successors, (995), 5 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:47,520 INFO L175 Difference]: Start difference. First operand has 22 places, 19 transitions, 40 flow. Second operand 4 states and 320 transitions. [2023-08-29 21:15:47,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 17 transitions, 64 flow [2023-08-29 21:15:47,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 64 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 21:15:47,521 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 42 flow [2023-08-29 21:15:47,521 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=42, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2023-08-29 21:15:47,522 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -8 predicate places. [2023-08-29 21:15:47,522 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 42 flow [2023-08-29 21:15:47,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:47,523 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:15:47,523 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-29 21:15:47,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-08-29 21:15:47,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:15:47,732 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2023-08-29 21:15:47,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:15:47,733 INFO L85 PathProgramCache]: Analyzing trace with hash 335265, now seen corresponding path program 1 times [2023-08-29 21:15:47,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:15:47,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522718909] [2023-08-29 21:15:47,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:15:47,734 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:15:47,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:15:47,735 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:15:47,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-08-29 21:15:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:15:47,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-29 21:15:47,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:15:47,835 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-08-29 21:15:47,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2023-08-29 21:15:47,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:15:47,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:15:47,871 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:15:47,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522718909] [2023-08-29 21:15:47,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522718909] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:15:47,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:15:47,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 21:15:47,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425762525] [2023-08-29 21:15:47,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:15:47,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 21:15:47,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:15:47,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 21:15:47,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 21:15:48,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 199 [2023-08-29 21:15:48,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 17 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:48,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:15:48,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 199 [2023-08-29 21:15:48,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:15:48,097 INFO L130 PetriNetUnfolder]: 12/45 cut-off events. [2023-08-29 21:15:48,097 INFO L131 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2023-08-29 21:15:48,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 45 events. 12/45 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 124 event pairs, 12 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 84. Up to 33 conditions per place. [2023-08-29 21:15:48,098 INFO L137 encePairwiseOnDemand]: 194/199 looper letters, 8 selfloop transitions, 3 changer transitions 0/15 dead transitions. [2023-08-29 21:15:48,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 15 transitions, 60 flow [2023-08-29 21:15:48,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 21:15:48,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 21:15:48,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 428 transitions. [2023-08-29 21:15:48,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4301507537688442 [2023-08-29 21:15:48,101 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 428 transitions. [2023-08-29 21:15:48,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 428 transitions. [2023-08-29 21:15:48,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:15:48,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 428 transitions. [2023-08-29 21:15:48,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 85.6) internal successors, (428), 5 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:48,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 199.0) internal successors, (1194), 6 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:48,106 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 199.0) internal successors, (1194), 6 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:48,106 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 42 flow. Second operand 5 states and 428 transitions. [2023-08-29 21:15:48,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 15 transitions, 60 flow [2023-08-29 21:15:48,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 15 transitions, 54 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 21:15:48,108 INFO L231 Difference]: Finished difference. Result has 22 places, 15 transitions, 38 flow [2023-08-29 21:15:48,108 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=38, PETRI_PLACES=22, PETRI_TRANSITIONS=15} [2023-08-29 21:15:48,121 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -9 predicate places. [2023-08-29 21:15:48,121 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 15 transitions, 38 flow [2023-08-29 21:15:48,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:48,122 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:15:48,122 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 21:15:48,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-08-29 21:15:48,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:15:48,330 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2023-08-29 21:15:48,331 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:15:48,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1398413594, now seen corresponding path program 1 times [2023-08-29 21:15:48,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:15:48,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229020514] [2023-08-29 21:15:48,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:15:48,332 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:15:48,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:15:48,333 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:15:48,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-08-29 21:15:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:15:48,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 21:15:48,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:15:48,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:15:48,466 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:15:48,466 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:15:48,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1229020514] [2023-08-29 21:15:48,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1229020514] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:15:48,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:15:48,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:15:48,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754052848] [2023-08-29 21:15:48,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:15:48,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:15:48,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:15:48,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:15:48,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:15:48,589 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 199 [2023-08-29 21:15:48,589 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:48,590 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:15:48,590 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 199 [2023-08-29 21:15:48,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:15:48,634 INFO L130 PetriNetUnfolder]: 12/42 cut-off events. [2023-08-29 21:15:48,634 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:15:48,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 42 events. 12/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 101 event pairs, 12 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 81. Up to 34 conditions per place. [2023-08-29 21:15:48,635 INFO L137 encePairwiseOnDemand]: 196/199 looper letters, 9 selfloop transitions, 2 changer transitions 0/14 dead transitions. [2023-08-29 21:15:48,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 14 transitions, 58 flow [2023-08-29 21:15:48,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:15:48,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:15:48,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2023-08-29 21:15:48,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4271356783919598 [2023-08-29 21:15:48,637 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2023-08-29 21:15:48,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2023-08-29 21:15:48,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:15:48,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2023-08-29 21:15:48,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:48,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:48,641 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:48,641 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 38 flow. Second operand 3 states and 255 transitions. [2023-08-29 21:15:48,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 14 transitions, 58 flow [2023-08-29 21:15:48,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 14 transitions, 53 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 21:15:48,642 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 35 flow [2023-08-29 21:15:48,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=35, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2023-08-29 21:15:48,642 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -11 predicate places. [2023-08-29 21:15:48,643 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 35 flow [2023-08-29 21:15:48,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:48,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:15:48,643 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 21:15:48,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-08-29 21:15:48,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:15:48,852 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2023-08-29 21:15:48,853 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:15:48,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1398413593, now seen corresponding path program 1 times [2023-08-29 21:15:48,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:15:48,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294211176] [2023-08-29 21:15:48,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:15:48,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:15:48,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:15:48,855 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:15:48,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-08-29 21:15:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:15:48,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-29 21:15:48,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:15:48,957 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-08-29 21:15:48,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2023-08-29 21:15:48,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:15:48,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:15:48,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:15:48,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294211176] [2023-08-29 21:15:48,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294211176] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:15:48,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:15:48,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:15:48,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64880902] [2023-08-29 21:15:48,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:15:48,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:15:48,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:15:48,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:15:48,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:15:49,073 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 199 [2023-08-29 21:15:49,074 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 35 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:49,074 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:15:49,074 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 199 [2023-08-29 21:15:49,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:15:49,116 INFO L130 PetriNetUnfolder]: 9/35 cut-off events. [2023-08-29 21:15:49,116 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 21:15:49,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 35 events. 9/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 69 event pairs, 9 based on Foata normal form. 4/37 useless extension candidates. Maximal degree in co-relation 67. Up to 27 conditions per place. [2023-08-29 21:15:49,117 INFO L137 encePairwiseOnDemand]: 196/199 looper letters, 8 selfloop transitions, 2 changer transitions 0/13 dead transitions. [2023-08-29 21:15:49,117 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 13 transitions, 53 flow [2023-08-29 21:15:49,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:15:49,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:15:49,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 245 transitions. [2023-08-29 21:15:49,119 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4103852596314908 [2023-08-29 21:15:49,119 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 245 transitions. [2023-08-29 21:15:49,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 245 transitions. [2023-08-29 21:15:49,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:15:49,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 245 transitions. [2023-08-29 21:15:49,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:49,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:49,122 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:49,122 INFO L175 Difference]: Start difference. First operand has 20 places, 14 transitions, 35 flow. Second operand 3 states and 245 transitions. [2023-08-29 21:15:49,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 13 transitions, 53 flow [2023-08-29 21:15:49,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 13 transitions, 49 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:15:49,123 INFO L231 Difference]: Finished difference. Result has 19 places, 13 transitions, 33 flow [2023-08-29 21:15:49,123 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=33, PETRI_PLACES=19, PETRI_TRANSITIONS=13} [2023-08-29 21:15:49,124 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -12 predicate places. [2023-08-29 21:15:49,124 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 33 flow [2023-08-29 21:15:49,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:49,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:15:49,124 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:15:49,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-08-29 21:15:49,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:15:49,325 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2023-08-29 21:15:49,325 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:15:49,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1067711994, now seen corresponding path program 1 times [2023-08-29 21:15:49,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:15:49,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [199063769] [2023-08-29 21:15:49,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 21:15:49,326 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:15:49,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:15:49,327 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:15:49,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-08-29 21:15:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 21:15:49,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-29 21:15:49,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:15:49,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2023-08-29 21:15:49,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:15:49,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:15:49,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:15:49,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [199063769] [2023-08-29 21:15:49,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [199063769] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:15:49,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:15:49,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 21:15:49,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281223966] [2023-08-29 21:15:49,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:15:49,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:15:49,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:15:49,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:15:49,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:15:49,483 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 199 [2023-08-29 21:15:49,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:49,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:15:49,484 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 199 [2023-08-29 21:15:49,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:15:49,537 INFO L130 PetriNetUnfolder]: 1/22 cut-off events. [2023-08-29 21:15:49,537 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:15:49,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 22 events. 1/22 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 1 based on Foata normal form. 4/26 useless extension candidates. Maximal degree in co-relation 42. Up to 9 conditions per place. [2023-08-29 21:15:49,538 INFO L137 encePairwiseOnDemand]: 195/199 looper letters, 6 selfloop transitions, 4 changer transitions 0/13 dead transitions. [2023-08-29 21:15:49,538 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 13 transitions, 53 flow [2023-08-29 21:15:49,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:15:49,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:15:49,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2023-08-29 21:15:49,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4472361809045226 [2023-08-29 21:15:49,541 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2023-08-29 21:15:49,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2023-08-29 21:15:49,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:15:49,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2023-08-29 21:15:49,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:49,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:49,543 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:49,543 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 33 flow. Second operand 3 states and 267 transitions. [2023-08-29 21:15:49,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 13 transitions, 53 flow [2023-08-29 21:15:49,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 13 transitions, 49 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 21:15:49,544 INFO L231 Difference]: Finished difference. Result has 19 places, 13 transitions, 37 flow [2023-08-29 21:15:49,544 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=37, PETRI_PLACES=19, PETRI_TRANSITIONS=13} [2023-08-29 21:15:49,547 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -12 predicate places. [2023-08-29 21:15:49,548 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 37 flow [2023-08-29 21:15:49,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:49,548 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 21:15:49,548 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 21:15:49,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-08-29 21:15:49,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:15:49,757 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2023-08-29 21:15:49,757 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 21:15:49,757 INFO L85 PathProgramCache]: Analyzing trace with hash 174378788, now seen corresponding path program 2 times [2023-08-29 21:15:49,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-08-29 21:15:49,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812139248] [2023-08-29 21:15:49,758 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 21:15:49,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:15:49,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-08-29 21:15:49,759 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-08-29 21:15:49,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-08-29 21:15:49,889 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-29 21:15:49,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 21:15:49,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-29 21:15:49,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 21:15:50,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 21:15:50,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 21:15:50,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-08-29 21:15:50,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812139248] [2023-08-29 21:15:50,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812139248] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 21:15:50,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 21:15:50,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 21:15:50,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283651189] [2023-08-29 21:15:50,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 21:15:50,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 21:15:50,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-08-29 21:15:50,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 21:15:50,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 21:15:50,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 199 [2023-08-29 21:15:50,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 37 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:50,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 21:15:50,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 199 [2023-08-29 21:15:50,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 21:15:50,272 INFO L130 PetriNetUnfolder]: 1/20 cut-off events. [2023-08-29 21:15:50,272 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 21:15:50,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 20 events. 1/20 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 1 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 42. Up to 13 conditions per place. [2023-08-29 21:15:50,273 INFO L137 encePairwiseOnDemand]: 197/199 looper letters, 0 selfloop transitions, 0 changer transitions 12/12 dead transitions. [2023-08-29 21:15:50,273 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 12 transitions, 50 flow [2023-08-29 21:15:50,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 21:15:50,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 21:15:50,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 237 transitions. [2023-08-29 21:15:50,274 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3969849246231156 [2023-08-29 21:15:50,274 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 237 transitions. [2023-08-29 21:15:50,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 237 transitions. [2023-08-29 21:15:50,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 21:15:50,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 237 transitions. [2023-08-29 21:15:50,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:50,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:50,277 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:50,277 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 37 flow. Second operand 3 states and 237 transitions. [2023-08-29 21:15:50,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 12 transitions, 50 flow [2023-08-29 21:15:50,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 12 transitions, 46 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 21:15:50,277 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2023-08-29 21:15:50,277 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2023-08-29 21:15:50,278 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -13 predicate places. [2023-08-29 21:15:50,278 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2023-08-29 21:15:50,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 21:15:50,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 20 remaining) [2023-08-29 21:15:50,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 20 remaining) [2023-08-29 21:15:50,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 20 remaining) [2023-08-29 21:15:50,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 20 remaining) [2023-08-29 21:15:50,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (15 of 20 remaining) [2023-08-29 21:15:50,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 20 remaining) [2023-08-29 21:15:50,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 20 remaining) [2023-08-29 21:15:50,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 20 remaining) [2023-08-29 21:15:50,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 20 remaining) [2023-08-29 21:15:50,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 20 remaining) [2023-08-29 21:15:50,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 20 remaining) [2023-08-29 21:15:50,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-29 21:15:50,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 20 remaining) [2023-08-29 21:15:50,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 20 remaining) [2023-08-29 21:15:50,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 20 remaining) [2023-08-29 21:15:50,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 20 remaining) [2023-08-29 21:15:50,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 20 remaining) [2023-08-29 21:15:50,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 20 remaining) [2023-08-29 21:15:50,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 20 remaining) [2023-08-29 21:15:50,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 20 remaining) [2023-08-29 21:15:50,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-08-29 21:15:50,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-08-29 21:15:50,493 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-08-29 21:15:50,497 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 21:15:50,497 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 21:15:50,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 09:15:50 BasicIcfg [2023-08-29 21:15:50,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 21:15:50,501 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 21:15:50,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 21:15:50,501 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 21:15:50,502 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:15:37" (3/4) ... [2023-08-29 21:15:50,504 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 21:15:50,509 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 21:15:50,512 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-08-29 21:15:50,512 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 21:15:50,513 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 21:15:50,545 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 21:15:50,546 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 21:15:50,546 INFO L158 Benchmark]: Toolchain (without parser) took 14355.60ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 45.3MB in the beginning and 39.1MB in the end (delta: 6.2MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2023-08-29 21:15:50,546 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 35.1MB in the end (delta: 45.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 21:15:50,547 INFO L158 Benchmark]: CACSL2BoogieTranslator took 584.56ms. Allocated memory is still 73.4MB. Free memory was 45.2MB in the beginning and 47.3MB in the end (delta: -2.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-29 21:15:50,547 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.27ms. Allocated memory is still 73.4MB. Free memory was 47.3MB in the beginning and 45.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 21:15:50,547 INFO L158 Benchmark]: Boogie Preprocessor took 50.73ms. Allocated memory is still 73.4MB. Free memory was 45.0MB in the beginning and 42.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 21:15:50,548 INFO L158 Benchmark]: RCFGBuilder took 522.02ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 42.9MB in the beginning and 65.4MB in the end (delta: -22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-08-29 21:15:50,548 INFO L158 Benchmark]: TraceAbstraction took 13080.32ms. Allocated memory is still 92.3MB. Free memory was 65.0MB in the beginning and 42.4MB in the end (delta: 22.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2023-08-29 21:15:50,548 INFO L158 Benchmark]: Witness Printer took 44.53ms. Allocated memory is still 92.3MB. Free memory was 42.4MB in the beginning and 39.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 21:15:50,550 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 35.1MB in the end (delta: 45.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 584.56ms. Allocated memory is still 73.4MB. Free memory was 45.2MB in the beginning and 47.3MB in the end (delta: -2.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.27ms. Allocated memory is still 73.4MB. Free memory was 47.3MB in the beginning and 45.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.73ms. Allocated memory is still 73.4MB. Free memory was 45.0MB in the beginning and 42.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 522.02ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 42.9MB in the beginning and 65.4MB in the end (delta: -22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 13080.32ms. Allocated memory is still 92.3MB. Free memory was 65.0MB in the beginning and 42.4MB in the end (delta: 22.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * Witness Printer took 44.53ms. Allocated memory is still 92.3MB. Free memory was 42.4MB in the beginning and 39.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.9s, 90 PlacesBefore, 31 PlacesAfterwards, 87 TransitionsBefore, 28 TransitionsAfterwards, 544 CoEnabledTransitionPairs, 7 FixpointIterations, 70 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 107 TotalNumberOfCompositions, 1989 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 917, independent: 770, independent conditional: 0, independent unconditional: 770, dependent: 147, dependent conditional: 0, dependent unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 359, independent: 334, independent conditional: 0, independent unconditional: 334, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 917, independent: 436, independent conditional: 0, independent unconditional: 436, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 359, unknown conditional: 0, unknown unconditional: 359] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 928]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 110 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 13.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 475 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 205 mSDsluCounter, 89 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 464 IncrementalHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 78 mSDtfsCounter, 464 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 38 ConstructedInterpolants, 12 QuantifiedInterpolants, 456 SizeOfPredicates, 6 NumberOfNonLiveVariables, 601 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 21:15:50,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE