./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-memsafety/fillarray1.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/fillarray1.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 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 03:53:10,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 03:53:10,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 03:53:10,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 03:53:10,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 03:53:10,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 03:53:10,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 03:53:10,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 03:53:10,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 03:53:10,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 03:53:10,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 03:53:10,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 03:53:10,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 03:53:10,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 03:53:10,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 03:53:10,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 03:53:10,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 03:53:10,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 03:53:10,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 03:53:10,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 03:53:10,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 03:53:10,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 03:53:10,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 03:53:10,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 03:53:10,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 03:53:10,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 03:53:10,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 03:53:10,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 03:53:10,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 03:53:11,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 03:53:11,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 03:53:11,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 03:53:11,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 03:53:11,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 03:53:11,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 03:53:11,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 03:53:11,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 03:53:11,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 03:53:11,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 03:53:11,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 03:53:11,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 03:53:11,006 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-16 03:53:11,019 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 03:53:11,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 03:53:11,020 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 03:53:11,020 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 03:53:11,021 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 03:53:11,021 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 03:53:11,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 03:53:11,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 03:53:11,022 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 03:53:11,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 03:53:11,022 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 03:53:11,022 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 03:53:11,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 03:53:11,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 03:53:11,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 03:53:11,023 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-16 03:53:11,023 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-16 03:53:11,023 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-16 03:53:11,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 03:53:11,023 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-16 03:53:11,024 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 03:53:11,024 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 03:53:11,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 03:53:11,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 03:53:11,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 03:53:11,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 03:53:11,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 03:53:11,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 03:53:11,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 03:53:11,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 03:53:11,025 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 03:53:11,025 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 03:53:11,026 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 03:53:11,026 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 03:53:11,026 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 [2023-02-16 03:53:11,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 03:53:11,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 03:53:11,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 03:53:11,239 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 03:53:11,239 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 03:53:11,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-memsafety/fillarray1.i [2023-02-16 03:53:12,193 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 03:53:12,425 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 03:53:12,426 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2023-02-16 03:53:12,441 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a43ad43e/e01c4170a2264da1acf7ba7d03f17f0d/FLAGd1215d57c [2023-02-16 03:53:12,780 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a43ad43e/e01c4170a2264da1acf7ba7d03f17f0d [2023-02-16 03:53:12,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 03:53:12,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 03:53:12,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 03:53:12,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 03:53:12,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 03:53:12,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 03:53:12" (1/1) ... [2023-02-16 03:53:12,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7529eafb 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 03:53:12,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 03:53:12" (1/1) ... [2023-02-16 03:53:12,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 03:53:12,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 03:53:13,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 03:53:13,148 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 03:53:13,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3d6aa7da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:13, skipping insertion in model container [2023-02-16 03:53:13,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 03:53:13,150 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-02-16 03:53:13,151 INFO L158 Benchmark]: Toolchain (without parser) took 367.92ms. Allocated memory is still 125.8MB. Free memory was 88.8MB in the beginning and 74.9MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-16 03:53:13,151 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 125.8MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 03:53:13,152 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.90ms. Allocated memory is still 125.8MB. Free memory was 88.8MB in the beginning and 74.9MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-16 03:53:13,154 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 125.8MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.90ms. Allocated memory is still 125.8MB. Free memory was 88.8MB in the beginning and 74.9MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1044]: 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/fillarray1.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 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 03:53:14,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 03:53:14,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 03:53:14,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 03:53:14,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 03:53:14,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 03:53:14,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 03:53:14,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 03:53:14,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 03:53:14,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 03:53:14,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 03:53:14,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 03:53:14,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 03:53:14,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 03:53:14,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 03:53:14,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 03:53:14,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 03:53:14,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 03:53:14,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 03:53:14,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 03:53:14,797 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 03:53:14,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 03:53:14,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 03:53:14,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 03:53:14,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 03:53:14,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 03:53:14,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 03:53:14,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 03:53:14,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 03:53:14,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 03:53:14,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 03:53:14,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 03:53:14,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 03:53:14,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 03:53:14,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 03:53:14,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 03:53:14,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 03:53:14,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 03:53:14,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 03:53:14,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 03:53:14,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 03:53:14,816 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-02-16 03:53:14,841 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 03:53:14,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 03:53:14,842 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 03:53:14,843 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 03:53:14,843 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 03:53:14,843 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 03:53:14,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 03:53:14,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 03:53:14,844 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 03:53:14,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 03:53:14,845 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 03:53:14,845 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 03:53:14,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 03:53:14,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 03:53:14,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 03:53:14,846 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-16 03:53:14,846 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-16 03:53:14,846 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-16 03:53:14,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 03:53:14,857 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-16 03:53:14,857 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-16 03:53:14,857 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-16 03:53:14,857 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 03:53:14,857 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 03:53:14,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 03:53:14,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 03:53:14,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 03:53:14,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 03:53:14,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 03:53:14,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 03:53:14,858 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-16 03:53:14,858 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-16 03:53:14,859 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 03:53:14,859 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 03:53:14,859 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 03:53:14,859 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-16 03:53:14,859 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 03:53:14,859 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 [2023-02-16 03:53:15,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 03:53:15,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 03:53:15,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 03:53:15,130 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 03:53:15,130 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 03:53:15,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-memsafety/fillarray1.i [2023-02-16 03:53:16,191 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 03:53:16,403 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 03:53:16,404 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2023-02-16 03:53:16,430 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b6c702d7/e09c079f3fa448e0b4b43f4687697297/FLAGe767158f8 [2023-02-16 03:53:16,442 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b6c702d7/e09c079f3fa448e0b4b43f4687697297 [2023-02-16 03:53:16,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 03:53:16,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 03:53:16,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 03:53:16,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 03:53:16,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 03:53:16,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 03:53:16" (1/1) ... [2023-02-16 03:53:16,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3626706d 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 03:53:16,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 03:53:16" (1/1) ... [2023-02-16 03:53:16,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 03:53:16,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 03:53:16,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 03:53:16,796 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-02-16 03:53:16,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 03:53:16,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 03:53:16,853 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 03:53:16,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 03:53:16,909 INFO L208 MainTranslator]: Completed translation [2023-02-16 03:53:16,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:16 WrapperNode [2023-02-16 03:53:16,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 03:53:16,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 03:53:16,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 03:53:16,911 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 03:53:16,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:16" (1/1) ... [2023-02-16 03:53:16,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:16" (1/1) ... [2023-02-16 03:53:16,940 INFO L138 Inliner]: procedures = 263, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2023-02-16 03:53:16,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 03:53:16,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 03:53:16,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 03:53:16,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 03:53:16,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:16" (1/1) ... [2023-02-16 03:53:16,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:16" (1/1) ... [2023-02-16 03:53:16,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:16" (1/1) ... [2023-02-16 03:53:16,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:16" (1/1) ... [2023-02-16 03:53:16,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:16" (1/1) ... [2023-02-16 03:53:16,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:16" (1/1) ... [2023-02-16 03:53:16,958 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:16" (1/1) ... [2023-02-16 03:53:16,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:16" (1/1) ... [2023-02-16 03:53:16,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 03:53:16,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 03:53:16,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 03:53:16,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 03:53:16,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:16" (1/1) ... [2023-02-16 03:53:16,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 03:53:16,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 03:53:16,994 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 03:53:17,031 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 03:53:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-02-16 03:53:17,043 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-02-16 03:53:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-02-16 03:53:17,045 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-02-16 03:53:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-16 03:53:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-16 03:53:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-02-16 03:53:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-16 03:53:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 03:53:17,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 03:53:17,046 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 03:53:17,179 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 03:53:17,181 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 03:53:17,397 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 03:53:17,402 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 03:53:17,402 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2023-02-16 03:53:17,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 03:53:17 BoogieIcfgContainer [2023-02-16 03:53:17,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 03:53:17,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 03:53:17,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 03:53:17,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 03:53:17,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 03:53:16" (1/3) ... [2023-02-16 03:53:17,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1688284f 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 03:53:17,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:53:16" (2/3) ... [2023-02-16 03:53:17,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1688284f 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 03:53:17,408 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 03:53:17,409 INFO L112 eAbstractionObserver]: Analyzing ICFG fillarray1.i [2023-02-16 03:53:17,420 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 03:53:17,420 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-02-16 03:53:17,420 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-02-16 03:53:17,513 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-02-16 03:53:17,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 105 transitions, 220 flow [2023-02-16 03:53:17,601 INFO L130 PetriNetUnfolder]: 8/109 cut-off events. [2023-02-16 03:53:17,603 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-16 03:53:17,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 109 events. 8/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 151 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 71. Up to 3 conditions per place. [2023-02-16 03:53:17,609 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 105 transitions, 220 flow [2023-02-16 03:53:17,613 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 103 transitions, 212 flow [2023-02-16 03:53:17,616 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-02-16 03:53:17,632 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 103 transitions, 212 flow [2023-02-16 03:53:17,634 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 103 transitions, 212 flow [2023-02-16 03:53:17,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 103 transitions, 212 flow [2023-02-16 03:53:17,649 INFO L130 PetriNetUnfolder]: 8/109 cut-off events. [2023-02-16 03:53:17,650 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-16 03:53:17,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 109 events. 8/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 151 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 71. Up to 3 conditions per place. [2023-02-16 03:53:17,654 INFO L119 LiptonReduction]: Number of co-enabled transitions 2546 [2023-02-16 03:53:24,147 INFO L134 LiptonReduction]: Checked pairs total: 7730 [2023-02-16 03:53:24,148 INFO L136 LiptonReduction]: Total number of compositions: 85 [2023-02-16 03:53:24,157 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 03:53:24,161 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;@517158a2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 03:53:24,162 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-02-16 03:53:24,163 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-02-16 03:53:24,163 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-16 03:53:24,164 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-16 03:53:24,164 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2023-02-16 03:53:24,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-16 03:53:24,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:53:24,168 INFO L85 PathProgramCache]: Analyzing trace with hash 400, now seen corresponding path program 1 times [2023-02-16 03:53:24,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:53:24,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623138998] [2023-02-16 03:53:24,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:53:24,177 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 03:53:24,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:53:24,183 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 03:53:24,219 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 03:53:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:53:24,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-16 03:53:24,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:53:24,305 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 03:53:24,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:53:24,306 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:53:24,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623138998] [2023-02-16 03:53:24,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1623138998] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:53:24,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:53:24,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-02-16 03:53:24,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557965439] [2023-02-16 03:53:24,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:53:24,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-16 03:53:24,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:53:24,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-16 03:53:24,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 03:53:24,332 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 190 [2023-02-16 03:53:24,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 43 transitions, 92 flow. Second operand has 2 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 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 03:53:24,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-16 03:53:24,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 190 [2023-02-16 03:53:24,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-16 03:53:24,575 INFO L130 PetriNetUnfolder]: 569/1096 cut-off events. [2023-02-16 03:53:24,577 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-02-16 03:53:24,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1953 conditions, 1096 events. 569/1096 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 6245 event pairs, 476 based on Foata normal form. 95/890 useless extension candidates. Maximal degree in co-relation 1938. Up to 840 conditions per place. [2023-02-16 03:53:24,585 INFO L137 encePairwiseOnDemand]: 186/190 looper letters, 25 selfloop transitions, 0 changer transitions 0/39 dead transitions. [2023-02-16 03:53:24,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 39 transitions, 134 flow [2023-02-16 03:53:24,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-16 03:53:24,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-02-16 03:53:24,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 227 transitions. [2023-02-16 03:53:24,602 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5973684210526315 [2023-02-16 03:53:24,603 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 227 transitions. [2023-02-16 03:53:24,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 227 transitions. [2023-02-16 03:53:24,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 03:53:24,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 227 transitions. [2023-02-16 03:53:24,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 113.5) internal successors, (227), 2 states have internal predecessors, (227), 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 03:53:24,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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 03:53:24,617 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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 03:53:24,618 INFO L175 Difference]: Start difference. First operand has 43 places, 43 transitions, 92 flow. Second operand 2 states and 227 transitions. [2023-02-16 03:53:24,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 39 transitions, 134 flow [2023-02-16 03:53:24,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 39 transitions, 132 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-02-16 03:53:24,623 INFO L231 Difference]: Finished difference. Result has 40 places, 39 transitions, 82 flow [2023-02-16 03:53:24,624 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=40, PETRI_TRANSITIONS=39} [2023-02-16 03:53:24,630 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2023-02-16 03:53:24,630 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 39 transitions, 82 flow [2023-02-16 03:53:24,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 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 03:53:24,631 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-16 03:53:24,631 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-02-16 03:53:24,641 INFO L552 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)] Ended with exit code 0 [2023-02-16 03:53:24,837 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 03:53:24,837 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 03:53:24,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:53:24,838 INFO L85 PathProgramCache]: Analyzing trace with hash 12526, now seen corresponding path program 1 times [2023-02-16 03:53:24,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:53:24,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1047328422] [2023-02-16 03:53:24,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:53:24,839 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 03:53:24,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:53:24,841 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 03:53:24,842 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 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 03:53:24,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:53:24,889 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 03:53:24,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:53:24,890 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:53:24,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1047328422] [2023-02-16 03:53:24,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1047328422] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:53:24,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:53:24,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-16 03:53:24,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969526558] [2023-02-16 03:53:24,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:53:24,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:53:24,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:53:24,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:53:24,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:53:24,934 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 190 [2023-02-16 03:53:24,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 03:53:24,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-16 03:53:24,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 190 [2023-02-16 03:53:24,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-16 03:53:25,084 INFO L130 PetriNetUnfolder]: 717/1315 cut-off events. [2023-02-16 03:53:25,085 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-16 03:53:25,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2409 conditions, 1315 events. 717/1315 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 7454 event pairs, 547 based on Foata normal form. 0/941 useless extension candidates. Maximal degree in co-relation 2406. Up to 957 conditions per place. [2023-02-16 03:53:25,090 INFO L137 encePairwiseOnDemand]: 187/190 looper letters, 37 selfloop transitions, 1 changer transitions 2/52 dead transitions. [2023-02-16 03:53:25,090 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 52 transitions, 188 flow [2023-02-16 03:53:25,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:53:25,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-02-16 03:53:25,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2023-02-16 03:53:25,093 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5403508771929825 [2023-02-16 03:53:25,093 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 308 transitions. [2023-02-16 03:53:25,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 308 transitions. [2023-02-16 03:53:25,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 03:53:25,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 308 transitions. [2023-02-16 03:53:25,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 03:53:25,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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 03:53:25,096 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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 03:53:25,096 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 82 flow. Second operand 3 states and 308 transitions. [2023-02-16 03:53:25,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 52 transitions, 188 flow [2023-02-16 03:53:25,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 52 transitions, 188 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-02-16 03:53:25,097 INFO L231 Difference]: Finished difference. Result has 43 places, 38 transitions, 85 flow [2023-02-16 03:53:25,097 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=43, PETRI_TRANSITIONS=38} [2023-02-16 03:53:25,098 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2023-02-16 03:53:25,098 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 38 transitions, 85 flow [2023-02-16 03:53:25,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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 03:53:25,099 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-16 03:53:25,099 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-02-16 03:53:25,109 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 03:53:25,306 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 03:53:25,306 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-16 03:53:25,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:53:25,307 INFO L85 PathProgramCache]: Analyzing trace with hash 394584, now seen corresponding path program 1 times [2023-02-16 03:53:25,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:53:25,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017699251] [2023-02-16 03:53:25,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:53:25,308 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 03:53:25,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:53:25,309 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 03:53:25,311 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 03:53:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:53:25,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 03:53:25,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:53:25,415 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2023-02-16 03:53:25,416 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 03:53:25,433 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 03:53:25,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:53:25,434 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:53:25,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017699251] [2023-02-16 03:53:25,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017699251] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:53:25,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:53:25,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-16 03:53:25,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647428242] [2023-02-16 03:53:25,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:53:25,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:53:25,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:53:25,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:53:25,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:53:25,491 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 190 [2023-02-16 03:53:25,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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 03:53:25,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-16 03:53:25,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 190 [2023-02-16 03:53:25,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-16 03:53:25,596 INFO L130 PetriNetUnfolder]: 621/1134 cut-off events. [2023-02-16 03:53:25,596 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-02-16 03:53:25,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2182 conditions, 1134 events. 621/1134 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 6510 event pairs, 258 based on Foata normal form. 0/844 useless extension candidates. Maximal degree in co-relation 2177. Up to 477 conditions per place. [2023-02-16 03:53:25,601 INFO L137 encePairwiseOnDemand]: 187/190 looper letters, 34 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2023-02-16 03:53:25,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 49 transitions, 179 flow [2023-02-16 03:53:25,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:53:25,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-02-16 03:53:25,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 310 transitions. [2023-02-16 03:53:25,603 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.543859649122807 [2023-02-16 03:53:25,603 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 310 transitions. [2023-02-16 03:53:25,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 310 transitions. [2023-02-16 03:53:25,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 03:53:25,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 310 transitions. [2023-02-16 03:53:25,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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 03:53:25,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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 03:53:25,606 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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 03:53:25,606 INFO L175 Difference]: Start difference. First operand has 43 places, 38 transitions, 85 flow. Second operand 3 states and 310 transitions. [2023-02-16 03:53:25,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 49 transitions, 179 flow [2023-02-16 03:53:25,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 49 transitions, 175 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-02-16 03:53:25,609 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 83 flow [2023-02-16 03:53:25,610 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=42, PETRI_TRANSITIONS=37} [2023-02-16 03:53:25,610 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2023-02-16 03:53:25,610 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 83 flow [2023-02-16 03:53:25,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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 03:53:25,611 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-16 03:53:25,611 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-02-16 03:53:25,617 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 03:53:25,817 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 03:53:25,818 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-16 03:53:25,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:53:25,818 INFO L85 PathProgramCache]: Analyzing trace with hash 394583, now seen corresponding path program 1 times [2023-02-16 03:53:25,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:53:25,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919848277] [2023-02-16 03:53:25,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:53:25,819 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 03:53:25,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:53:25,820 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 03:53:25,822 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 03:53:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:53:25,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 03:53:25,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:53:25,900 INFO L321 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2023-02-16 03:53:25,901 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 03:53:25,914 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 03:53:25,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:53:25,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:53:25,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919848277] [2023-02-16 03:53:25,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919848277] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:53:25,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:53:25,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-16 03:53:25,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845536213] [2023-02-16 03:53:25,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:53:25,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:53:25,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:53:25,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:53:25,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:53:25,958 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 190 [2023-02-16 03:53:25,958 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 03:53:25,958 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-16 03:53:25,958 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 190 [2023-02-16 03:53:25,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-16 03:53:26,061 INFO L130 PetriNetUnfolder]: 543/1039 cut-off events. [2023-02-16 03:53:26,062 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2023-02-16 03:53:26,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1957 conditions, 1039 events. 543/1039 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5949 event pairs, 324 based on Foata normal form. 0/805 useless extension candidates. Maximal degree in co-relation 1953. Up to 577 conditions per place. [2023-02-16 03:53:26,066 INFO L137 encePairwiseOnDemand]: 187/190 looper letters, 32 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2023-02-16 03:53:26,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 48 transitions, 173 flow [2023-02-16 03:53:26,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:53:26,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-02-16 03:53:26,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2023-02-16 03:53:26,068 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5561403508771929 [2023-02-16 03:53:26,069 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 317 transitions. [2023-02-16 03:53:26,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 317 transitions. [2023-02-16 03:53:26,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 03:53:26,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 317 transitions. [2023-02-16 03:53:26,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 03:53:26,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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 03:53:26,071 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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 03:53:26,071 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 83 flow. Second operand 3 states and 317 transitions. [2023-02-16 03:53:26,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 48 transitions, 173 flow [2023-02-16 03:53:26,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 48 transitions, 169 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-02-16 03:53:26,072 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 81 flow [2023-02-16 03:53:26,072 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2023-02-16 03:53:26,073 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -2 predicate places. [2023-02-16 03:53:26,073 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 81 flow [2023-02-16 03:53:26,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 03:53:26,074 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-16 03:53:26,074 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-02-16 03:53:26,088 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 03:53:26,280 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 03:53:26,281 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-16 03:53:26,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:53:26,281 INFO L85 PathProgramCache]: Analyzing trace with hash 379205335, now seen corresponding path program 1 times [2023-02-16 03:53:26,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:53:26,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165936326] [2023-02-16 03:53:26,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:53:26,282 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 03:53:26,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:53:26,283 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 03:53:26,285 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 03:53:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:53:26,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 03:53:26,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:53:26,341 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 03:53:26,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:53:26,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:53:26,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165936326] [2023-02-16 03:53:26,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [165936326] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:53:26,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:53:26,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-16 03:53:26,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187929777] [2023-02-16 03:53:26,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:53:26,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:53:26,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:53:26,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:53:26,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:53:26,348 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 190 [2023-02-16 03:53:26,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 03:53:26,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-16 03:53:26,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 190 [2023-02-16 03:53:26,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-16 03:53:26,419 INFO L130 PetriNetUnfolder]: 466/878 cut-off events. [2023-02-16 03:53:26,419 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-02-16 03:53:26,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1677 conditions, 878 events. 466/878 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4769 event pairs, 395 based on Foata normal form. 0/653 useless extension candidates. Maximal degree in co-relation 1673. Up to 696 conditions per place. [2023-02-16 03:53:26,423 INFO L137 encePairwiseOnDemand]: 188/190 looper letters, 20 selfloop transitions, 1 changer transitions 0/35 dead transitions. [2023-02-16 03:53:26,423 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 35 transitions, 121 flow [2023-02-16 03:53:26,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:53:26,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-02-16 03:53:26,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2023-02-16 03:53:26,425 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5385964912280702 [2023-02-16 03:53:26,425 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 307 transitions. [2023-02-16 03:53:26,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 307 transitions. [2023-02-16 03:53:26,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 03:53:26,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 307 transitions. [2023-02-16 03:53:26,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 03:53:26,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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 03:53:26,427 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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 03:53:26,427 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 81 flow. Second operand 3 states and 307 transitions. [2023-02-16 03:53:26,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 35 transitions, 121 flow [2023-02-16 03:53:26,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 35 transitions, 117 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-02-16 03:53:26,428 INFO L231 Difference]: Finished difference. Result has 40 places, 35 transitions, 77 flow [2023-02-16 03:53:26,428 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=40, PETRI_TRANSITIONS=35} [2023-02-16 03:53:26,429 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2023-02-16 03:53:26,429 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 35 transitions, 77 flow [2023-02-16 03:53:26,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 03:53:26,430 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-16 03:53:26,430 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-02-16 03:53:26,437 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 03:53:26,636 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 03:53:26,637 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-16 03:53:26,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:53:26,637 INFO L85 PathProgramCache]: Analyzing trace with hash 379205342, now seen corresponding path program 1 times [2023-02-16 03:53:26,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:53:26,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843696922] [2023-02-16 03:53:26,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:53:26,638 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 03:53:26,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:53:26,639 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 03:53:26,641 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 03:53:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:53:26,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-16 03:53:26,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:53:26,734 INFO L321 Elim1Store]: treesize reduction 50, result has 23.1 percent of original size [2023-02-16 03:53:26,734 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 03:53:26,792 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 03:53:26,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:53:26,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:53:26,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843696922] [2023-02-16 03:53:26,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843696922] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:53:26,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:53:26,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-16 03:53:26,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166134245] [2023-02-16 03:53:26,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:53:26,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:53:26,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:53:26,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:53:26,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:53:26,882 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 190 [2023-02-16 03:53:26,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 03:53:26,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-16 03:53:26,883 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 190 [2023-02-16 03:53:26,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-16 03:53:27,006 INFO L130 PetriNetUnfolder]: 448/812 cut-off events. [2023-02-16 03:53:27,007 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-16 03:53:27,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 812 events. 448/812 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4311 event pairs, 165 based on Foata normal form. 0/657 useless extension candidates. Maximal degree in co-relation 1565. Up to 477 conditions per place. [2023-02-16 03:53:27,010 INFO L137 encePairwiseOnDemand]: 187/190 looper letters, 31 selfloop transitions, 2 changer transitions 0/46 dead transitions. [2023-02-16 03:53:27,010 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 165 flow [2023-02-16 03:53:27,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:53:27,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-02-16 03:53:27,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2023-02-16 03:53:27,012 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5491228070175439 [2023-02-16 03:53:27,012 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2023-02-16 03:53:27,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2023-02-16 03:53:27,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 03:53:27,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2023-02-16 03:53:27,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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 03:53:27,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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 03:53:27,015 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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 03:53:27,015 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 77 flow. Second operand 3 states and 313 transitions. [2023-02-16 03:53:27,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 165 flow [2023-02-16 03:53:27,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 46 transitions, 164 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-02-16 03:53:27,016 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 78 flow [2023-02-16 03:53:27,017 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2023-02-16 03:53:27,019 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2023-02-16 03:53:27,019 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 78 flow [2023-02-16 03:53:27,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 03:53:27,019 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-16 03:53:27,019 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-02-16 03:53:27,031 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 03:53:27,226 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 03:53:27,227 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-16 03:53:27,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:53:27,227 INFO L85 PathProgramCache]: Analyzing trace with hash 379205336, now seen corresponding path program 1 times [2023-02-16 03:53:27,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:53:27,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514039224] [2023-02-16 03:53:27,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:53:27,228 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 03:53:27,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:53:27,229 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 03:53:27,229 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 03:53:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:53:27,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 03:53:27,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:53:27,297 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 03:53:27,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:53:27,298 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:53:27,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514039224] [2023-02-16 03:53:27,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514039224] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:53:27,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:53:27,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-16 03:53:27,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971096077] [2023-02-16 03:53:27,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:53:27,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 03:53:27,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:53:27,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 03:53:27,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 03:53:27,318 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 190 [2023-02-16 03:53:27,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 03:53:27,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-16 03:53:27,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 190 [2023-02-16 03:53:27,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-16 03:53:27,373 INFO L130 PetriNetUnfolder]: 300/580 cut-off events. [2023-02-16 03:53:27,373 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2023-02-16 03:53:27,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 580 events. 300/580 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2939 event pairs, 253 based on Foata normal form. 42/523 useless extension candidates. Maximal degree in co-relation 1138. Up to 458 conditions per place. [2023-02-16 03:53:27,376 INFO L137 encePairwiseOnDemand]: 188/190 looper letters, 18 selfloop transitions, 1 changer transitions 0/33 dead transitions. [2023-02-16 03:53:27,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 114 flow [2023-02-16 03:53:27,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 03:53:27,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-02-16 03:53:27,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2023-02-16 03:53:27,377 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5350877192982456 [2023-02-16 03:53:27,377 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 305 transitions. [2023-02-16 03:53:27,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 305 transitions. [2023-02-16 03:53:27,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 03:53:27,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 305 transitions. [2023-02-16 03:53:27,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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 03:53:27,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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 03:53:27,379 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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 03:53:27,379 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 78 flow. Second operand 3 states and 305 transitions. [2023-02-16 03:53:27,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 114 flow [2023-02-16 03:53:27,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 33 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-02-16 03:53:27,380 INFO L231 Difference]: Finished difference. Result has 39 places, 33 transitions, 74 flow [2023-02-16 03:53:27,380 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=39, PETRI_TRANSITIONS=33} [2023-02-16 03:53:27,380 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -4 predicate places. [2023-02-16 03:53:27,380 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 74 flow [2023-02-16 03:53:27,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 03:53:27,381 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-16 03:53:27,381 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:53:27,393 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 03:53:27,587 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 03:53:27,588 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-02-16 03:53:27,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:53:27,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1142827360, now seen corresponding path program 1 times [2023-02-16 03:53:27,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:53:27,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193111517] [2023-02-16 03:53:27,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:53:27,589 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 03:53:27,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:53:27,589 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 03:53:27,592 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 03:53:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:53:27,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-16 03:53:27,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:53:27,811 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 03:53:27,811 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:53:27,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:53:27,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193111517] [2023-02-16 03:53:27,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193111517] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:53:27,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:53:27,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 03:53:27,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78337126] [2023-02-16 03:53:27,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:53:27,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-16 03:53:27,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:53:27,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-16 03:53:27,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-16 03:53:30,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-16 03:53:32,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-16 03:53:34,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-16 03:53:36,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-16 03:53:38,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-16 03:53:40,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-16 03:53:42,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-16 03:53:44,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-16 03:53:44,730 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 190 [2023-02-16 03:53:44,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 74 flow. Second operand has 6 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 03:53:44,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-02-16 03:53:44,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 190 [2023-02-16 03:53:44,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-02-16 03:53:47,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-16 03:53:48,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-16 03:53:51,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-16 03:53:53,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-16 03:53:53,376 INFO L130 PetriNetUnfolder]: 464/760 cut-off events. [2023-02-16 03:53:53,376 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-02-16 03:53:53,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1547 conditions, 760 events. 464/760 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3586 event pairs, 62 based on Foata normal form. 0/637 useless extension candidates. Maximal degree in co-relation 1543. Up to 294 conditions per place. [2023-02-16 03:53:53,379 INFO L137 encePairwiseOnDemand]: 185/190 looper letters, 60 selfloop transitions, 4 changer transitions 0/74 dead transitions. [2023-02-16 03:53:53,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 74 transitions, 284 flow [2023-02-16 03:53:53,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 03:53:53,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-02-16 03:53:53,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 515 transitions. [2023-02-16 03:53:53,381 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4517543859649123 [2023-02-16 03:53:53,381 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 515 transitions. [2023-02-16 03:53:53,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 515 transitions. [2023-02-16 03:53:53,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 03:53:53,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 515 transitions. [2023-02-16 03:53:53,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 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 03:53:53,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 190.0) internal successors, (1330), 7 states have internal predecessors, (1330), 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 03:53:53,384 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 190.0) internal successors, (1330), 7 states have internal predecessors, (1330), 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 03:53:53,384 INFO L175 Difference]: Start difference. First operand has 39 places, 33 transitions, 74 flow. Second operand 6 states and 515 transitions. [2023-02-16 03:53:53,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 74 transitions, 284 flow [2023-02-16 03:53:53,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 74 transitions, 283 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-02-16 03:53:53,387 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 79 flow [2023-02-16 03:53:53,387 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=79, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2023-02-16 03:53:53,389 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2023-02-16 03:53:53,389 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 79 flow [2023-02-16 03:53:53,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 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 03:53:53,389 INFO L201 CegarLoopForPetriNet]: Found error trace [2023-02-16 03:53:53,389 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:53:53,396 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 03:53:53,596 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 03:53:53,596 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 03:53:53,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:53:53,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1816875148, now seen corresponding path program 1 times [2023-02-16 03:53:53,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:53:53,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192748371] [2023-02-16 03:53:53,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:53:53,597 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 03:53:53,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:53:53,598 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 03:53:53,598 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 03:53:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 03:53:53,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 03:53:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 03:53:53,709 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-02-16 03:53:53,709 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-16 03:53:53,710 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2023-02-16 03:53:53,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (16 of 18 remaining) [2023-02-16 03:53:53,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2023-02-16 03:53:53,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2023-02-16 03:53:53,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2023-02-16 03:53:53,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2023-02-16 03:53:53,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (11 of 18 remaining) [2023-02-16 03:53:53,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE (10 of 18 remaining) [2023-02-16 03:53:53,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE (9 of 18 remaining) [2023-02-16 03:53:53,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2023-02-16 03:53:53,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2023-02-16 03:53:53,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2023-02-16 03:53:53,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2023-02-16 03:53:53,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2023-02-16 03:53:53,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2023-02-16 03:53:53,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2023-02-16 03:53:53,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 18 remaining) [2023-02-16 03:53:53,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 18 remaining) [2023-02-16 03:53:53,732 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 03:53:53,913 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 03:53:53,913 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:53:53,917 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-02-16 03:53:53,917 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-16 03:53:53,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 03:53:53 BasicIcfg [2023-02-16 03:53:53,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-16 03:53:53,941 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-16 03:53:53,941 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-16 03:53:53,941 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-16 03:53:53,941 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 03:53:53,942 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-16 03:53:53,970 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-16 03:53:53,970 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-16 03:53:53,970 INFO L158 Benchmark]: Toolchain (without parser) took 37525.69ms. Allocated memory was 73.4MB in the beginning and 115.3MB in the end (delta: 41.9MB). Free memory was 48.4MB in the beginning and 55.6MB in the end (delta: -7.2MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2023-02-16 03:53:53,971 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory is still 36.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 03:53:53,971 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.18ms. Allocated memory is still 73.4MB. Free memory was 48.2MB in the beginning and 34.4MB in the end (delta: 13.8MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2023-02-16 03:53:53,971 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.77ms. Allocated memory is still 73.4MB. Free memory was 34.4MB in the beginning and 32.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 03:53:53,972 INFO L158 Benchmark]: Boogie Preprocessor took 20.18ms. Allocated memory is still 73.4MB. Free memory was 32.1MB in the beginning and 30.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 03:53:53,972 INFO L158 Benchmark]: RCFGBuilder took 442.54ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 30.2MB in the beginning and 48.6MB in the end (delta: -18.4MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-02-16 03:53:53,972 INFO L158 Benchmark]: TraceAbstraction took 36535.27ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 48.2MB in the beginning and 58.7MB in the end (delta: -10.5MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2023-02-16 03:53:53,972 INFO L158 Benchmark]: Witness Printer took 29.58ms. Allocated memory is still 115.3MB. Free memory was 58.7MB in the beginning and 55.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-16 03:53:53,973 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory is still 36.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 463.18ms. Allocated memory is still 73.4MB. Free memory was 48.2MB in the beginning and 34.4MB in the end (delta: 13.8MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.77ms. Allocated memory is still 73.4MB. Free memory was 34.4MB in the beginning and 32.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.18ms. Allocated memory is still 73.4MB. Free memory was 32.1MB in the beginning and 30.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 442.54ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 30.2MB in the beginning and 48.6MB in the end (delta: -18.4MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * TraceAbstraction took 36535.27ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 48.2MB in the beginning and 58.7MB in the end (delta: -10.5MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * Witness Printer took 29.58ms. Allocated memory is still 115.3MB. Free memory was 58.7MB in the beginning and 55.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.5s, 101 PlacesBefore, 43 PlacesAfterwards, 103 TransitionsBefore, 43 TransitionsAfterwards, 2546 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 85 TotalNumberOfCompositions, 7730 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2462, independent: 2218, independent conditional: 0, independent unconditional: 2218, dependent: 244, dependent conditional: 0, dependent unconditional: 244, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1057, independent: 1021, independent conditional: 0, independent unconditional: 1021, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2462, independent: 1197, independent conditional: 0, independent unconditional: 1197, dependent: 208, dependent conditional: 0, dependent unconditional: 208, unknown: 1057, unknown conditional: 0, unknown unconditional: 1057] , Statistics on independence cache: Total cache size (in pairs): 135, Positive cache size: 113, Positive conditional cache size: 0, Positive unconditional cache size: 113, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, 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; [L1040] 0 int x, y, z; [L1068] 0 size = __VERIFIER_nondet_int() [L1069] COND FALSE 0 !(size < 1 || size > 20) [L1072] 0 int *a = (int *)malloc(size); [L1073] 0 pthread_t id1, id2; [L1074] 0 ind = 0 [L1075] 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={3:0}, id2={7:0}, ind=0, j=2, pthread_create(&id1, ((void *)0), t1, a)=0, size=2, x=0, y=0, z=0] [L1042] 1 x = 1 VAL [arg={1:0}, arg={1:0}, i=1, ind=0, j=2, size=2, x=1, y=0, z=0] [L1043] 1 y = 1 [L1044] 1 int *a = (int *)arg; VAL [a={1:0}, arg={1:0}, arg={1:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1045] COND FALSE 1 !(y == 1 && z) VAL [a={1:0}, arg={1:0}, arg={1:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1047] COND TRUE 1 ind < size - 1 VAL [a={1:0}, arg={1:0}, arg={1:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1048] 1 ++ind VAL [a={1:0}, arg={1:0}, arg={1:0}, i=1, ind=1, j=2, size=2, x=1, y=1, z=0] [L1049] 1 a[ind] = i - UnprovableResult [Line: 1067]: 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: 1077]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1077]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1077]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1075]: 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: 1076]: 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, 131 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: 36.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 26.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 16 mSolverCounterUnknown, 436 SdHoareTripleChecker+Valid, 26.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 252 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 25.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 744 IncrementalHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 41 mSDtfsCounter, 744 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 26, 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 24 ConstructedInterpolants, 11 QuantifiedInterpolants, 428 SizeOfPredicates, 8 NumberOfNonLiveVariables, 438 ConjunctsInSsa, 40 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 03:53:53,993 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)