./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-memsafety/fillarray.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5317dae 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 ../sv-benchmarks/c/pthread-memsafety/fillarray.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 042c5199cb977bee0e9fb33f98d35f27e793036e412b430f7152f110aa730c52 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 03:53:10,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 03:53:10,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 03:53:10,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 03:53:10,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 03:53:10,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 03:53:10,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 03:53:10,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 03:53:10,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 03:53:10,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 03:53:10,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 03:53:10,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 03:53:10,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 03:53:10,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 03:53:10,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 03:53:10,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 03:53:10,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 03:53:10,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 03:53:10,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 03:53:10,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 03:53:10,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 03:53:10,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 03:53:10,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 03:53:10,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 03:53:10,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 03:53:10,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 03:53:10,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 03:53:10,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 03:53:10,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 03:53:10,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 03:53:10,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 03:53:10,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 03:53:10,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 03:53:10,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 03:53:10,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 03:53:10,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 03:53:10,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 03:53:10,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 03:53:10,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 03:53:10,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 03:53:10,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 03:53:10,149 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-16 03:53:10,176 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 03:53:10,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 03:53:10,177 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 03:53:10,177 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 03:53:10,178 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 03:53:10,178 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 03:53:10,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 03:53:10,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 03:53:10,179 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 03:53:10,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 03:53:10,180 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 03:53:10,180 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 03:53:10,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 03:53:10,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 03:53:10,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 03:53:10,181 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-16 03:53:10,181 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-16 03:53:10,181 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-16 03:53:10,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 03:53:10,182 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-16 03:53:10,182 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 03:53:10,182 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 03:53:10,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 03:53:10,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 03:53:10,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 03:53:10,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 03:53:10,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 03:53:10,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 03:53:10,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 03:53:10,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 03:53:10,183 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 03:53:10,184 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 03:53:10,184 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 03:53:10,184 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 03:53:10,184 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 042c5199cb977bee0e9fb33f98d35f27e793036e412b430f7152f110aa730c52 [2023-02-16 03:53:10,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 03:53:10,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 03:53:10,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 03:53:10,466 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 03:53:10,467 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 03:53:10,468 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-memsafety/fillarray.i [2023-02-16 03:53:11,564 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 03:53:11,854 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 03:53:11,854 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-memsafety/fillarray.i [2023-02-16 03:53:11,869 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bd51e589/174621ea3f6e4cebaf738416ec41cbd0/FLAG3fa3a3096 [2023-02-16 03:53:11,885 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bd51e589/174621ea3f6e4cebaf738416ec41cbd0 [2023-02-16 03:53:11,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 03:53:11,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 03:53:11,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 03:53:11,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 03:53:11,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 03:53:11,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 03:53:11" (1/1) ... [2023-02-16 03:53:11,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d1c3a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:11, skipping insertion in model container [2023-02-16 03:53:11,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 03:53:11" (1/1) ... [2023-02-16 03:53:11,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 03:53:11,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 03:53:12,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 03:53:12,357 ERROR L326 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) [2023-02-16 03:53:12,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@75832f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:12, skipping insertion in model container [2023-02-16 03:53:12,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 03:53:12,360 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-02-16 03:53:12,362 INFO L158 Benchmark]: Toolchain (without parser) took 470.88ms. Allocated memory is still 134.2MB. Free memory was 91.0MB in the beginning and 77.2MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-16 03:53:12,362 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 03:53:12,363 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.57ms. Allocated memory is still 134.2MB. Free memory was 90.5MB in the beginning and 77.2MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-16 03:53:12,364 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.57ms. Allocated memory is still 134.2MB. Free memory was 90.5MB in the beginning and 77.2MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1041]: 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 ../sv-benchmarks/c/pthread-memsafety/fillarray.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 042c5199cb977bee0e9fb33f98d35f27e793036e412b430f7152f110aa730c52 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 03:53:14,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 03:53:14,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 03:53:14,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 03:53:14,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 03:53:14,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 03:53:14,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 03:53:14,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 03:53:14,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 03:53:14,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 03:53:14,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 03:53:14,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 03:53:14,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 03:53:14,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 03:53:14,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 03:53:14,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 03:53:14,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 03:53:14,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 03:53:14,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 03:53:14,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 03:53:14,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 03:53:14,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 03:53:14,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 03:53:14,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 03:53:14,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 03:53:14,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 03:53:14,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 03:53:14,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 03:53:14,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 03:53:14,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 03:53:14,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 03:53:14,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 03:53:14,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 03:53:14,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 03:53:14,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 03:53:14,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 03:53:14,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 03:53:14,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 03:53:14,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 03:53:14,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 03:53:14,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 03:53:14,458 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-02-16 03:53:14,491 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 03:53:14,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 03:53:14,492 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 03:53:14,492 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 03:53:14,493 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 03:53:14,493 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 03:53:14,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 03:53:14,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 03:53:14,494 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 03:53:14,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 03:53:14,495 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 03:53:14,495 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 03:53:14,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 03:53:14,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 03:53:14,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 03:53:14,496 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-16 03:53:14,496 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-16 03:53:14,500 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-16 03:53:14,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 03:53:14,501 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-16 03:53:14,501 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-16 03:53:14,501 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-16 03:53:14,501 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 03:53:14,502 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 03:53:14,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 03:53:14,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 03:53:14,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 03:53:14,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 03:53:14,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 03:53:14,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 03:53:14,503 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-16 03:53:14,503 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-16 03:53:14,503 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 03:53:14,504 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 03:53:14,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 03:53:14,504 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-16 03:53:14,504 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 03:53:14,504 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 042c5199cb977bee0e9fb33f98d35f27e793036e412b430f7152f110aa730c52 [2023-02-16 03:53:14,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 03:53:14,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 03:53:14,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 03:53:14,840 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 03:53:14,840 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 03:53:14,843 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-memsafety/fillarray.i [2023-02-16 03:53:16,022 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 03:53:16,322 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 03:53:16,323 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-memsafety/fillarray.i [2023-02-16 03:53:16,347 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b51c173b/6713a2a347b147c8a1c2a4e0ba0e8975/FLAGd38bca888 [2023-02-16 03:53:16,358 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b51c173b/6713a2a347b147c8a1c2a4e0ba0e8975 [2023-02-16 03:53:16,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 03:53:16,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 03:53:16,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 03:53:16,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 03:53:16,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 03:53:16,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 03:53:16" (1/1) ... [2023-02-16 03:53:16,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@579851d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:16, skipping insertion in model container [2023-02-16 03:53:16,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 03:53:16" (1/1) ... [2023-02-16 03:53:16,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 03:53:16,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 03:53:16,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 03:53:16,860 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-02-16 03:53:16,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 03:53:16,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 03:53:16,928 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 03:53:16,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 03:53:17,048 INFO L208 MainTranslator]: Completed translation [2023-02-16 03:53:17,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:17 WrapperNode [2023-02-16 03:53:17,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 03:53:17,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 03:53:17,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 03:53:17,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 03:53:17,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:17" (1/1) ... [2023-02-16 03:53:17,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:17" (1/1) ... [2023-02-16 03:53:17,100 INFO L138 Inliner]: procedures = 263, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 49 [2023-02-16 03:53:17,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 03:53:17,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 03:53:17,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 03:53:17,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 03:53:17,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:17" (1/1) ... [2023-02-16 03:53:17,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:17" (1/1) ... [2023-02-16 03:53:17,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:17" (1/1) ... [2023-02-16 03:53:17,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:17" (1/1) ... [2023-02-16 03:53:17,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:17" (1/1) ... [2023-02-16 03:53:17,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:17" (1/1) ... [2023-02-16 03:53:17,133 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:17" (1/1) ... [2023-02-16 03:53:17,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:17" (1/1) ... [2023-02-16 03:53:17,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 03:53:17,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 03:53:17,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 03:53:17,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 03:53:17,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:17" (1/1) ... [2023-02-16 03:53:17,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 03:53:17,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 03:53:17,178 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) [2023-02-16 03:53:17,191 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 [2023-02-16 03:53:17,227 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-02-16 03:53:17,228 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-02-16 03:53:17,228 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-02-16 03:53:17,229 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-02-16 03:53:17,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-16 03:53:17,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-16 03:53:17,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-02-16 03:53:17,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-16 03:53:17,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 03:53:17,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 03:53:17,232 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-02-16 03:53:17,410 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 03:53:17,412 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 03:53:17,708 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 03:53:17,715 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 03:53:17,716 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-16 03:53:17,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 03:53:17 BoogieIcfgContainer [2023-02-16 03:53:17,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 03:53:17,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 03:53:17,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 03:53:17,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 03:53:17,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 03:53:16" (1/3) ... [2023-02-16 03:53:17,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556fc75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 03:53:17, skipping insertion in model container [2023-02-16 03:53:17,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:17" (2/3) ... [2023-02-16 03:53:17,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@556fc75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 03:53:17, skipping insertion in model container [2023-02-16 03:53:17,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 03:53:17" (3/3) ... [2023-02-16 03:53:17,726 INFO L112 eAbstractionObserver]: Analyzing ICFG fillarray.i [2023-02-16 03:53:17,741 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 03:53:17,741 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-02-16 03:53:17,742 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-02-16 03:53:17,825 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-02-16 03:53:17,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 90 transitions, 190 flow [2023-02-16 03:53:17,905 INFO L130 PetriNetUnfolder]: 4/94 cut-off events. [2023-02-16 03:53:17,906 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-16 03:53:17,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 94 events. 4/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 116 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2023-02-16 03:53:17,911 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 90 transitions, 190 flow [2023-02-16 03:53:17,914 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 88 transitions, 182 flow [2023-02-16 03:53:17,918 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-02-16 03:53:17,937 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 88 transitions, 182 flow [2023-02-16 03:53:17,940 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 88 transitions, 182 flow [2023-02-16 03:53:17,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 88 transitions, 182 flow [2023-02-16 03:53:17,971 INFO L130 PetriNetUnfolder]: 4/94 cut-off events. [2023-02-16 03:53:17,972 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-16 03:53:17,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 94 events. 4/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 116 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2023-02-16 03:53:17,975 INFO L119 LiptonReduction]: Number of co-enabled transitions 1586 [2023-02-16 03:53:24,187 INFO L134 LiptonReduction]: Checked pairs total: 4000 [2023-02-16 03:53:24,188 INFO L136 LiptonReduction]: Total number of compositions: 83 [2023-02-16 03:53:24,201 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 03:53:24,206 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;@676aad9d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 03:53:24,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-02-16 03:53:24,209 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-02-16 03:53:24,209 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-16 03:53:24,209 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-16 03:53:24,210 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2023-02-16 03:53:24,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-16 03:53:24,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:53:24,215 INFO L85 PathProgramCache]: Analyzing trace with hash 342, now seen corresponding path program 1 times [2023-02-16 03:53:24,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:53:24,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2078469401] [2023-02-16 03:53:24,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:53:24,226 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 [2023-02-16 03:53:24,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:53:24,237 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) [2023-02-16 03:53:24,246 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 [2023-02-16 03:53:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:53:24,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-16 03:53:24,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:53:24,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:53:24,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:53:24,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:53:24,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2078469401] [2023-02-16 03:53:24,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2078469401] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:53:24,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:53:24,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-02-16 03:53:24,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307231291] [2023-02-16 03:53:24,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:53:24,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-16 03:53:24,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:53:24,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-16 03:53:24,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 03:53:24,352 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 173 [2023-02-16 03:53:24,354 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 72 flow. Second operand has 2 states, 2 states have (on average 86.5) internal successors, (173), 2 states have internal predecessors, (173), 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) [2023-02-16 03:53:24,354 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-16 03:53:24,354 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 173 [2023-02-16 03:53:24,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-16 03:53:24,563 INFO L130 PetriNetUnfolder]: 277/505 cut-off events. [2023-02-16 03:53:24,564 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-02-16 03:53:24,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 505 events. 277/505 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2634 event pairs, 241 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 956. Up to 453 conditions per place. [2023-02-16 03:53:24,573 INFO L137 encePairwiseOnDemand]: 171/173 looper letters, 22 selfloop transitions, 0 changer transitions 0/31 dead transitions. [2023-02-16 03:53:24,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 31 transitions, 112 flow [2023-02-16 03:53:24,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-16 03:53:24,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-02-16 03:53:24,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 196 transitions. [2023-02-16 03:53:24,588 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5664739884393064 [2023-02-16 03:53:24,589 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 196 transitions. [2023-02-16 03:53:24,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 196 transitions. [2023-02-16 03:53:24,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 03:53:24,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 196 transitions. [2023-02-16 03:53:24,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 98.0) internal successors, (196), 2 states have internal predecessors, (196), 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) [2023-02-16 03:53:24,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 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) [2023-02-16 03:53:24,601 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 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) [2023-02-16 03:53:24,603 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 72 flow. Second operand 2 states and 196 transitions. [2023-02-16 03:53:24,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 31 transitions, 112 flow [2023-02-16 03:53:24,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 31 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-02-16 03:53:24,607 INFO L231 Difference]: Finished difference. Result has 34 places, 31 transitions, 66 flow [2023-02-16 03:53:24,609 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=66, PETRI_PLACES=34, PETRI_TRANSITIONS=31} [2023-02-16 03:53:24,612 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, -3 predicate places. [2023-02-16 03:53:24,612 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 31 transitions, 66 flow [2023-02-16 03:53:24,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 86.5) internal successors, (173), 2 states have internal predecessors, (173), 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) [2023-02-16 03:53:24,612 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-16 03:53:24,617 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-02-16 03:53:24,629 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 [2023-02-16 03:53:24,825 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 [2023-02-16 03:53:24,826 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-16 03:53:24,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:53:24,827 INFO L85 PathProgramCache]: Analyzing trace with hash 10697, now seen corresponding path program 1 times [2023-02-16 03:53:24,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:53:24,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041271237] [2023-02-16 03:53:24,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:53:24,828 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 [2023-02-16 03:53:24,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:53:24,829 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) [2023-02-16 03:53:24,832 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 [2023-02-16 03:53:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:53:24,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 03:53:24,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:53:24,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:53:24,894 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:53:24,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:53:24,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041271237] [2023-02-16 03:53:24,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041271237] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:53:24,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:53:24,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-16 03:53:24,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573073530] [2023-02-16 03:53:24,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:53:24,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:53:24,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:53:24,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:53:24,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:53:24,974 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 173 [2023-02-16 03:53:24,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2023-02-16 03:53:24,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-16 03:53:24,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 173 [2023-02-16 03:53:24,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-16 03:53:25,106 INFO L130 PetriNetUnfolder]: 312/539 cut-off events. [2023-02-16 03:53:25,110 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-16 03:53:25,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1059 conditions, 539 events. 312/539 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2681 event pairs, 241 based on Foata normal form. 0/340 useless extension candidates. Maximal degree in co-relation 1056. Up to 451 conditions per place. [2023-02-16 03:53:25,116 INFO L137 encePairwiseOnDemand]: 170/173 looper letters, 29 selfloop transitions, 1 changer transitions 2/40 dead transitions. [2023-02-16 03:53:25,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 40 transitions, 148 flow [2023-02-16 03:53:25,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:53:25,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-02-16 03:53:25,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 261 transitions. [2023-02-16 03:53:25,123 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5028901734104047 [2023-02-16 03:53:25,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 261 transitions. [2023-02-16 03:53:25,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 261 transitions. [2023-02-16 03:53:25,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 03:53:25,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 261 transitions. [2023-02-16 03:53:25,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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) [2023-02-16 03:53:25,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-02-16 03:53:25,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-02-16 03:53:25,129 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 66 flow. Second operand 3 states and 261 transitions. [2023-02-16 03:53:25,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 40 transitions, 148 flow [2023-02-16 03:53:25,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 148 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-02-16 03:53:25,131 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 69 flow [2023-02-16 03:53:25,131 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2023-02-16 03:53:25,131 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 0 predicate places. [2023-02-16 03:53:25,131 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 69 flow [2023-02-16 03:53:25,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2023-02-16 03:53:25,132 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-16 03:53:25,132 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-02-16 03:53:25,142 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 [2023-02-16 03:53:25,332 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 [2023-02-16 03:53:25,333 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-16 03:53:25,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:53:25,334 INFO L85 PathProgramCache]: Analyzing trace with hash 334998, now seen corresponding path program 1 times [2023-02-16 03:53:25,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:53:25,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785873451] [2023-02-16 03:53:25,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:53:25,335 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 [2023-02-16 03:53:25,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:53:25,336 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) [2023-02-16 03:53:25,340 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 [2023-02-16 03:53:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:53:25,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 03:53:25,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:53:25,541 INFO L321 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2023-02-16 03:53:25,542 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 2 case distinctions, treesize of input 12 treesize of output 27 [2023-02-16 03:53:25,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:53:25,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:53:25,576 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:53:25,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785873451] [2023-02-16 03:53:25,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785873451] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:53:25,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:53:25,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-16 03:53:25,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312515194] [2023-02-16 03:53:25,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:53:25,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:53:25,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:53:25,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:53:25,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:53:25,674 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 173 [2023-02-16 03:53:25,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2023-02-16 03:53:25,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-16 03:53:25,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 173 [2023-02-16 03:53:25,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-16 03:53:25,789 INFO L130 PetriNetUnfolder]: 273/490 cut-off events. [2023-02-16 03:53:25,789 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-02-16 03:53:25,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 988 conditions, 490 events. 273/490 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2479 event pairs, 176 based on Foata normal form. 0/330 useless extension candidates. Maximal degree in co-relation 983. Up to 333 conditions per place. [2023-02-16 03:53:25,794 INFO L137 encePairwiseOnDemand]: 170/173 looper letters, 26 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-02-16 03:53:25,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 37 transitions, 139 flow [2023-02-16 03:53:25,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:53:25,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-02-16 03:53:25,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 272 transitions. [2023-02-16 03:53:25,797 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5240847784200385 [2023-02-16 03:53:25,798 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 272 transitions. [2023-02-16 03:53:25,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 272 transitions. [2023-02-16 03:53:25,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 03:53:25,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 272 transitions. [2023-02-16 03:53:25,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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) [2023-02-16 03:53:25,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-02-16 03:53:25,801 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-02-16 03:53:25,801 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 69 flow. Second operand 3 states and 272 transitions. [2023-02-16 03:53:25,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 37 transitions, 139 flow [2023-02-16 03:53:25,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 37 transitions, 135 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-02-16 03:53:25,806 INFO L231 Difference]: Finished difference. Result has 36 places, 29 transitions, 67 flow [2023-02-16 03:53:25,806 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=36, PETRI_TRANSITIONS=29} [2023-02-16 03:53:25,808 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2023-02-16 03:53:25,808 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 29 transitions, 67 flow [2023-02-16 03:53:25,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2023-02-16 03:53:25,809 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-16 03:53:25,809 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-02-16 03:53:25,821 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 [2023-02-16 03:53:26,021 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 [2023-02-16 03:53:26,022 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-16 03:53:26,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:53:26,023 INFO L85 PathProgramCache]: Analyzing trace with hash 334999, now seen corresponding path program 1 times [2023-02-16 03:53:26,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:53:26,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812336225] [2023-02-16 03:53:26,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:53:26,028 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 [2023-02-16 03:53:26,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:53:26,029 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) [2023-02-16 03:53:26,032 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 [2023-02-16 03:53:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:53:26,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 03:53:26,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:53:26,132 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2023-02-16 03:53:26,133 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 2 case distinctions, treesize of input 12 treesize of output 33 [2023-02-16 03:53:26,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:53:26,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:53:26,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:53:26,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812336225] [2023-02-16 03:53:26,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812336225] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:53:26,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:53:26,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-16 03:53:26,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368087067] [2023-02-16 03:53:26,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:53:26,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:53:26,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:53:26,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:53:26,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:53:26,224 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 173 [2023-02-16 03:53:26,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 29 transitions, 67 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) [2023-02-16 03:53:26,224 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-16 03:53:26,224 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 173 [2023-02-16 03:53:26,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-16 03:53:26,320 INFO L130 PetriNetUnfolder]: 269/478 cut-off events. [2023-02-16 03:53:26,320 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-16 03:53:26,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 969 conditions, 478 events. 269/478 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2345 event pairs, 135 based on Foata normal form. 0/325 useless extension candidates. Maximal degree in co-relation 965. Up to 221 conditions per place. [2023-02-16 03:53:26,327 INFO L137 encePairwiseOnDemand]: 170/173 looper letters, 25 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2023-02-16 03:53:26,328 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 36 transitions, 135 flow [2023-02-16 03:53:26,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:53:26,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-02-16 03:53:26,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2023-02-16 03:53:26,331 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5048169556840078 [2023-02-16 03:53:26,331 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 262 transitions. [2023-02-16 03:53:26,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 262 transitions. [2023-02-16 03:53:26,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 03:53:26,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 262 transitions. [2023-02-16 03:53:26,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2023-02-16 03:53:26,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-02-16 03:53:26,334 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-02-16 03:53:26,334 INFO L175 Difference]: Start difference. First operand has 36 places, 29 transitions, 67 flow. Second operand 3 states and 262 transitions. [2023-02-16 03:53:26,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 36 transitions, 135 flow [2023-02-16 03:53:26,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 36 transitions, 131 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-02-16 03:53:26,337 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 65 flow [2023-02-16 03:53:26,337 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2023-02-16 03:53:26,338 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2023-02-16 03:53:26,338 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 65 flow [2023-02-16 03:53:26,338 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) [2023-02-16 03:53:26,338 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-16 03:53:26,339 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-02-16 03:53:26,346 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 [2023-02-16 03:53:26,539 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 [2023-02-16 03:53:26,539 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-16 03:53:26,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:53:26,540 INFO L85 PathProgramCache]: Analyzing trace with hash 321942368, now seen corresponding path program 1 times [2023-02-16 03:53:26,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:53:26,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353019163] [2023-02-16 03:53:26,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:53:26,541 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 [2023-02-16 03:53:26,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:53:26,542 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) [2023-02-16 03:53:26,542 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 [2023-02-16 03:53:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:53:26,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 03:53:26,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:53:26,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:53:26,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:53:26,615 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:53:26,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353019163] [2023-02-16 03:53:26,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353019163] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:53:26,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:53:26,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-16 03:53:26,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65827867] [2023-02-16 03:53:26,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:53:26,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:53:26,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:53:26,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:53:26,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:53:26,646 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 173 [2023-02-16 03:53:26,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2023-02-16 03:53:26,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-16 03:53:26,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 173 [2023-02-16 03:53:26,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-16 03:53:26,723 INFO L130 PetriNetUnfolder]: 234/423 cut-off events. [2023-02-16 03:53:26,724 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2023-02-16 03:53:26,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 859 conditions, 423 events. 234/423 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2049 event pairs, 204 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 855. Up to 381 conditions per place. [2023-02-16 03:53:26,727 INFO L137 encePairwiseOnDemand]: 171/173 looper letters, 17 selfloop transitions, 1 changer transitions 0/27 dead transitions. [2023-02-16 03:53:26,727 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 99 flow [2023-02-16 03:53:26,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:53:26,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-02-16 03:53:26,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2023-02-16 03:53:26,733 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5105973025048169 [2023-02-16 03:53:26,733 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 265 transitions. [2023-02-16 03:53:26,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 265 transitions. [2023-02-16 03:53:26,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 03:53:26,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 265 transitions. [2023-02-16 03:53:26,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-02-16 03:53:26,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-02-16 03:53:26,736 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-02-16 03:53:26,736 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 65 flow. Second operand 3 states and 265 transitions. [2023-02-16 03:53:26,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 99 flow [2023-02-16 03:53:26,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 27 transitions, 95 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-02-16 03:53:26,738 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 61 flow [2023-02-16 03:53:26,738 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2023-02-16 03:53:26,740 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, -3 predicate places. [2023-02-16 03:53:26,740 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 61 flow [2023-02-16 03:53:26,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2023-02-16 03:53:26,741 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-16 03:53:26,741 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-02-16 03:53:26,753 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 [2023-02-16 03:53:26,950 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 [2023-02-16 03:53:26,950 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-16 03:53:26,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:53:26,951 INFO L85 PathProgramCache]: Analyzing trace with hash 321942341, now seen corresponding path program 1 times [2023-02-16 03:53:26,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:53:26,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1295446462] [2023-02-16 03:53:26,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:53:26,952 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 [2023-02-16 03:53:26,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:53:26,953 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) [2023-02-16 03:53:26,956 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 [2023-02-16 03:53:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:53:27,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 03:53:27,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:53:27,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:53:27,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:53:27,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:53:27,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1295446462] [2023-02-16 03:53:27,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1295446462] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:53:27,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:53:27,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-16 03:53:27,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234802086] [2023-02-16 03:53:27,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:53:27,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:53:27,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:53:27,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:53:27,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:53:27,036 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 173 [2023-02-16 03:53:27,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2023-02-16 03:53:27,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-16 03:53:27,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 173 [2023-02-16 03:53:27,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-16 03:53:27,095 INFO L130 PetriNetUnfolder]: 199/368 cut-off events. [2023-02-16 03:53:27,095 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-16 03:53:27,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 729 conditions, 368 events. 199/368 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1755 event pairs, 173 based on Foata normal form. 0/276 useless extension candidates. Maximal degree in co-relation 725. Up to 326 conditions per place. [2023-02-16 03:53:27,097 INFO L137 encePairwiseOnDemand]: 171/173 looper letters, 16 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-02-16 03:53:27,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 26 transitions, 93 flow [2023-02-16 03:53:27,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:53:27,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-02-16 03:53:27,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2023-02-16 03:53:27,100 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5086705202312138 [2023-02-16 03:53:27,100 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2023-02-16 03:53:27,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2023-02-16 03:53:27,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 03:53:27,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2023-02-16 03:53:27,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2023-02-16 03:53:27,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-02-16 03:53:27,114 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-02-16 03:53:27,114 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 61 flow. Second operand 3 states and 264 transitions. [2023-02-16 03:53:27,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 26 transitions, 93 flow [2023-02-16 03:53:27,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 26 transitions, 92 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-02-16 03:53:27,115 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 60 flow [2023-02-16 03:53:27,115 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2023-02-16 03:53:27,116 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, -3 predicate places. [2023-02-16 03:53:27,116 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 60 flow [2023-02-16 03:53:27,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2023-02-16 03:53:27,116 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-16 03:53:27,116 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-02-16 03:53:27,126 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 [2023-02-16 03:53:27,325 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 [2023-02-16 03:53:27,326 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-16 03:53:27,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:53:27,326 INFO L85 PathProgramCache]: Analyzing trace with hash 321942369, now seen corresponding path program 1 times [2023-02-16 03:53:27,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:53:27,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902993277] [2023-02-16 03:53:27,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:53:27,327 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 [2023-02-16 03:53:27,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:53:27,329 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) [2023-02-16 03:53:27,331 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 [2023-02-16 03:53:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:53:27,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-16 03:53:27,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:53:27,444 INFO L321 Elim1Store]: treesize reduction 46, result has 29.2 percent of original size [2023-02-16 03:53:27,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 33 [2023-02-16 03:53:27,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:53:27,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:53:27,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:53:27,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902993277] [2023-02-16 03:53:27,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1902993277] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:53:27,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:53:27,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-16 03:53:27,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142597593] [2023-02-16 03:53:27,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:53:27,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:53:27,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:53:27,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:53:27,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:53:27,537 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 173 [2023-02-16 03:53:27,538 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 60 flow. Second operand has 3 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) [2023-02-16 03:53:27,538 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-16 03:53:27,538 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 173 [2023-02-16 03:53:27,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-16 03:53:27,623 INFO L130 PetriNetUnfolder]: 164/313 cut-off events. [2023-02-16 03:53:27,624 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-16 03:53:27,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 620 conditions, 313 events. 164/313 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1470 event pairs, 18 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 616. Up to 221 conditions per place. [2023-02-16 03:53:27,626 INFO L137 encePairwiseOnDemand]: 170/173 looper letters, 22 selfloop transitions, 2 changer transitions 0/33 dead transitions. [2023-02-16 03:53:27,627 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 122 flow [2023-02-16 03:53:27,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:53:27,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-02-16 03:53:27,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2023-02-16 03:53:27,629 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5105973025048169 [2023-02-16 03:53:27,629 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 265 transitions. [2023-02-16 03:53:27,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 265 transitions. [2023-02-16 03:53:27,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 03:53:27,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 265 transitions. [2023-02-16 03:53:27,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-02-16 03:53:27,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-02-16 03:53:27,632 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 173.0) internal successors, (692), 4 states have internal predecessors, (692), 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) [2023-02-16 03:53:27,632 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 60 flow. Second operand 3 states and 265 transitions. [2023-02-16 03:53:27,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 122 flow [2023-02-16 03:53:27,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 121 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-02-16 03:53:27,633 INFO L231 Difference]: Finished difference. Result has 34 places, 25 transitions, 61 flow [2023-02-16 03:53:27,633 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2023-02-16 03:53:27,634 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, -3 predicate places. [2023-02-16 03:53:27,634 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 61 flow [2023-02-16 03:53:27,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2023-02-16 03:53:27,635 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-16 03:53:27,635 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:53:27,645 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 [2023-02-16 03:53:27,844 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 [2023-02-16 03:53:27,845 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-16 03:53:27,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:53:27,846 INFO L85 PathProgramCache]: Analyzing trace with hash 123146058, now seen corresponding path program 1 times [2023-02-16 03:53:27,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:53:27,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350094335] [2023-02-16 03:53:27,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:53:27,846 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 [2023-02-16 03:53:27,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:53:27,848 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2023-02-16 03:53:27,850 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 (9)] Waiting until timeout for monitored process [2023-02-16 03:53:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:53:27,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-16 03:53:27,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:53:27,945 INFO L321 Elim1Store]: treesize reduction 50, result has 23.1 percent of original size [2023-02-16 03:53:27,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 29 [2023-02-16 03:53:28,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:53:28,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:53:28,060 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:53:28,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350094335] [2023-02-16 03:53:28,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350094335] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:53:28,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:53:28,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:53:28,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569354281] [2023-02-16 03:53:28,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:53:28,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 03:53:28,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:53:28,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 03:53:28,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 03:53:28,428 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 173 [2023-02-16 03:53:28,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 61 flow. Second operand has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 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) [2023-02-16 03:53:28,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-16 03:53:28,428 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 173 [2023-02-16 03:53:28,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-16 03:53:28,707 INFO L130 PetriNetUnfolder]: 224/391 cut-off events. [2023-02-16 03:53:28,707 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-02-16 03:53:28,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 391 events. 224/391 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1742 event pairs, 19 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 802. Up to 296 conditions per place. [2023-02-16 03:53:28,710 INFO L137 encePairwiseOnDemand]: 168/173 looper letters, 30 selfloop transitions, 5 changer transitions 0/42 dead transitions. [2023-02-16 03:53:28,710 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 169 flow [2023-02-16 03:53:28,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 03:53:28,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-02-16 03:53:28,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 421 transitions. [2023-02-16 03:53:28,712 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4867052023121387 [2023-02-16 03:53:28,713 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 421 transitions. [2023-02-16 03:53:28,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 421 transitions. [2023-02-16 03:53:28,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 03:53:28,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 421 transitions. [2023-02-16 03:53:28,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 84.2) internal successors, (421), 5 states have internal predecessors, (421), 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) [2023-02-16 03:53:28,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 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) [2023-02-16 03:53:28,716 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 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) [2023-02-16 03:53:28,716 INFO L175 Difference]: Start difference. First operand has 34 places, 25 transitions, 61 flow. Second operand 5 states and 421 transitions. [2023-02-16 03:53:28,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 169 flow [2023-02-16 03:53:28,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 42 transitions, 163 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-02-16 03:53:28,717 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 80 flow [2023-02-16 03:53:28,718 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=80, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2023-02-16 03:53:28,718 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 1 predicate places. [2023-02-16 03:53:28,718 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 80 flow [2023-02-16 03:53:28,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.0) internal successors, (390), 5 states have internal predecessors, (390), 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) [2023-02-16 03:53:28,719 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-16 03:53:28,719 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:53:28,730 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 (9)] Forceful destruction successful, exit code 0 [2023-02-16 03:53:28,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /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 [2023-02-16 03:53:28,929 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-16 03:53:28,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:53:28,929 INFO L85 PathProgramCache]: Analyzing trace with hash 123146059, now seen corresponding path program 1 times [2023-02-16 03:53:28,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:53:28,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177007079] [2023-02-16 03:53:28,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:53:28,930 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 [2023-02-16 03:53:28,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:53:28,932 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2023-02-16 03:53:28,934 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 (10)] Waiting until timeout for monitored process [2023-02-16 03:53:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 03:53:28,999 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 03:53:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 03:53:29,047 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-02-16 03:53:29,047 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-16 03:53:29,048 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2023-02-16 03:53:29,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (16 of 18 remaining) [2023-02-16 03:53:29,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2023-02-16 03:53:29,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2023-02-16 03:53:29,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2023-02-16 03:53:29,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2023-02-16 03:53:29,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (11 of 18 remaining) [2023-02-16 03:53:29,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE (10 of 18 remaining) [2023-02-16 03:53:29,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE (9 of 18 remaining) [2023-02-16 03:53:29,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2023-02-16 03:53:29,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2023-02-16 03:53:29,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2023-02-16 03:53:29,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2023-02-16 03:53:29,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2023-02-16 03:53:29,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2023-02-16 03:53:29,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2023-02-16 03:53:29,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 18 remaining) [2023-02-16 03:53:29,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 18 remaining) [2023-02-16 03:53:29,065 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 (10)] Forceful destruction successful, exit code 0 [2023-02-16 03:53:29,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /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 [2023-02-16 03:53:29,254 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:53:29,258 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-02-16 03:53:29,258 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-16 03:53:29,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 03:53:29 BasicIcfg [2023-02-16 03:53:29,279 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-16 03:53:29,280 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-16 03:53:29,280 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-16 03:53:29,280 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-16 03:53:29,280 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 03:53:17" (3/4) ... [2023-02-16 03:53:29,282 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-16 03:53:29,320 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-16 03:53:29,320 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-16 03:53:29,321 INFO L158 Benchmark]: Toolchain (without parser) took 12958.41ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 39.9MB in the beginning and 48.1MB in the end (delta: -8.3MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2023-02-16 03:53:29,321 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 50.3MB. Free memory was 26.9MB in the beginning and 26.8MB in the end (delta: 54.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 03:53:29,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 685.37ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 39.7MB in the beginning and 50.7MB in the end (delta: -11.0MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2023-02-16 03:53:29,322 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.79ms. Allocated memory is still 79.7MB. Free memory was 50.7MB in the beginning and 48.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 03:53:29,322 INFO L158 Benchmark]: Boogie Preprocessor took 35.48ms. Allocated memory is still 79.7MB. Free memory was 48.6MB in the beginning and 46.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 03:53:29,324 INFO L158 Benchmark]: RCFGBuilder took 581.44ms. Allocated memory is still 79.7MB. Free memory was 46.5MB in the beginning and 50.1MB in the end (delta: -3.7MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2023-02-16 03:53:29,326 INFO L158 Benchmark]: TraceAbstraction took 11558.65ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 49.6MB in the beginning and 50.6MB in the end (delta: -977.2kB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2023-02-16 03:53:29,326 INFO L158 Benchmark]: Witness Printer took 40.41ms. Allocated memory is still 96.5MB. Free memory was 50.6MB in the beginning and 48.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 03:53:29,328 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 50.3MB. Free memory was 26.9MB in the beginning and 26.8MB in the end (delta: 54.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 685.37ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 39.7MB in the beginning and 50.7MB in the end (delta: -11.0MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.79ms. Allocated memory is still 79.7MB. Free memory was 50.7MB in the beginning and 48.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.48ms. Allocated memory is still 79.7MB. Free memory was 48.6MB in the beginning and 46.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 581.44ms. Allocated memory is still 79.7MB. Free memory was 46.5MB in the beginning and 50.1MB in the end (delta: -3.7MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * TraceAbstraction took 11558.65ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 49.6MB in the beginning and 50.6MB in the end (delta: -977.2kB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * Witness Printer took 40.41ms. Allocated memory is still 96.5MB. Free memory was 50.6MB in the beginning and 48.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.2s, 90 PlacesBefore, 37 PlacesAfterwards, 88 TransitionsBefore, 33 TransitionsAfterwards, 1586 CoEnabledTransitionPairs, 6 FixpointIterations, 42 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 83 TotalNumberOfCompositions, 4000 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2040, independent: 1886, independent conditional: 0, independent unconditional: 1886, dependent: 154, dependent conditional: 0, dependent unconditional: 154, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 780, independent: 752, independent conditional: 0, independent unconditional: 752, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2040, independent: 1134, independent conditional: 0, independent unconditional: 1134, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 780, unknown conditional: 0, unknown unconditional: 780] , Statistics on independence cache: Total cache size (in pairs): 134, Positive cache size: 120, Positive conditional cache size: 0, Positive unconditional cache size: 120, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1037] 0 int size; [L1038] 0 int ind; [L1039] 0 int j = 2, i = 1; [L1057] 0 size = __VERIFIER_nondet_int() [L1058] COND FALSE 0 !(size < 1 || size > 20) [L1061] 0 int *a = (int *)malloc(size); [L1062] 0 pthread_t id1, id2; [L1063] 0 ind = 0 [L1064] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, a) VAL [\old(argc)=5, a={1:0}, arg={1:0}, argc=5, argv={9:6}, argv={9:6}, i=1, id1={15:0}, id2={7:0}, ind=0, j=2, pthread_create(&id1, ((void *)0), t1, a)=0, size=2] [L1041] 1 int *a = (int *)arg; VAL [a={1:0}, arg={1:0}, arg={1:0}, i=1, ind=0, j=2, size=2] [L1042] COND TRUE 1 ind < size - 1 VAL [a={1:0}, arg={1:0}, arg={1:0}, i=1, ind=0, j=2, size=2] [L1043] 1 ++ind VAL [a={1:0}, arg={1:0}, arg={1:0}, i=1, ind=1, j=2, size=2] [L1044] 1 a[ind] = i - UnprovableResult [Line: 1056]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1066]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1066]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1066]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1065]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1064]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 112 locations, 18 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: 11.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 443 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 232 mSDsluCounter, 57 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 555 IncrementalHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 45 mSDtfsCounter, 555 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=8, InterpolantAutomatonStates: 25, 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, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 23 ConstructedInterpolants, 6 QuantifiedInterpolants, 213 SizeOfPredicates, 11 NumberOfNonLiveVariables, 398 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-02-16 03:53:29,364 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)