./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a31fd051 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/ldv-memsafety/memleaks_test3-2.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 b68a60a1004db041631656acc5775ad13321e46c020cb1a181ddf112036ec7ab --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 13:10:42,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 13:10:42,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 13:10:42,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 13:10:42,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 13:10:42,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 13:10:42,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 13:10:42,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 13:10:42,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 13:10:42,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 13:10:42,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 13:10:42,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 13:10:42,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 13:10:42,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 13:10:42,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 13:10:42,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 13:10:42,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 13:10:42,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 13:10:42,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 13:10:42,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 13:10:42,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 13:10:42,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 13:10:42,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 13:10:42,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 13:10:42,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 13:10:42,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 13:10:42,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 13:10:42,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 13:10:42,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 13:10:42,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 13:10:42,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 13:10:42,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 13:10:42,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 13:10:42,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 13:10:42,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 13:10:42,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 13:10:42,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 13:10:42,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 13:10:42,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 13:10:42,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 13:10:42,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 13:10:42,878 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-15 13:10:42,904 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 13:10:42,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 13:10:42,905 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 13:10:42,905 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 13:10:42,906 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 13:10:42,906 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 13:10:42,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 13:10:42,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 13:10:42,907 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 13:10:42,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 13:10:42,908 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 13:10:42,908 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 13:10:42,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 13:10:42,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 13:10:42,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 13:10:42,909 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-15 13:10:42,909 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-15 13:10:42,909 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-15 13:10:42,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 13:10:42,909 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-15 13:10:42,909 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 13:10:42,910 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 13:10:42,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 13:10:42,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 13:10:42,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 13:10:42,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:10:42,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 13:10:42,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 13:10:42,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 13:10:42,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 13:10:42,911 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 13:10:42,911 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 13:10:42,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 13:10:42,912 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 13:10:42,912 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b68a60a1004db041631656acc5775ad13321e46c020cb1a181ddf112036ec7ab [2023-02-15 13:10:43,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 13:10:43,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 13:10:43,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 13:10:43,106 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 13:10:43,106 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 13:10:43,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2023-02-15 13:10:44,152 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 13:10:44,423 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 13:10:44,423 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2023-02-15 13:10:44,437 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c3f97909/e964482bf11c4969b7412571d50623f2/FLAG74b71aaf7 [2023-02-15 13:10:44,451 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c3f97909/e964482bf11c4969b7412571d50623f2 [2023-02-15 13:10:44,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 13:10:44,454 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 13:10:44,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 13:10:44,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 13:10:44,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 13:10:44,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:10:44" (1/1) ... [2023-02-15 13:10:44,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49041cb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:10:44, skipping insertion in model container [2023-02-15 13:10:44,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:10:44" (1/1) ... [2023-02-15 13:10:44,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 13:10:44,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 13:10:44,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:10:44,768 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) [2023-02-15 13:10:44,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2f061dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:10:44, skipping insertion in model container [2023-02-15 13:10:44,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 13:10:44,770 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-02-15 13:10:44,772 INFO L158 Benchmark]: Toolchain (without parser) took 317.52ms. Allocated memory is still 138.4MB. Free memory was 102.1MB in the beginning and 88.4MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-15 13:10:44,773 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 138.4MB. Free memory is still 108.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 13:10:44,773 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.56ms. Allocated memory is still 138.4MB. Free memory was 101.7MB in the beginning and 88.4MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-15 13:10:44,774 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 138.4MB. Free memory is still 108.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.56ms. Allocated memory is still 138.4MB. Free memory was 101.7MB in the beginning and 88.4MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: 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/ldv-memsafety/memleaks_test3-2.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 b68a60a1004db041631656acc5775ad13321e46c020cb1a181ddf112036ec7ab --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 13:10:46,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 13:10:46,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 13:10:46,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 13:10:46,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 13:10:46,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 13:10:46,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 13:10:46,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 13:10:46,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 13:10:46,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 13:10:46,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 13:10:46,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 13:10:46,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 13:10:46,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 13:10:46,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 13:10:46,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 13:10:46,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 13:10:46,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 13:10:46,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 13:10:46,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 13:10:46,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 13:10:46,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 13:10:46,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 13:10:46,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 13:10:46,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 13:10:46,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 13:10:46,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 13:10:46,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 13:10:46,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 13:10:46,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 13:10:46,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 13:10:46,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 13:10:46,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 13:10:46,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 13:10:46,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 13:10:46,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 13:10:46,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 13:10:46,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 13:10:46,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 13:10:46,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 13:10:46,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 13:10:46,489 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-02-15 13:10:46,503 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 13:10:46,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 13:10:46,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 13:10:46,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 13:10:46,504 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 13:10:46,504 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 13:10:46,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 13:10:46,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 13:10:46,505 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 13:10:46,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 13:10:46,505 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 13:10:46,505 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 13:10:46,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 13:10:46,505 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 13:10:46,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 13:10:46,506 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-15 13:10:46,506 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-15 13:10:46,506 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-15 13:10:46,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 13:10:46,506 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-15 13:10:46,506 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-15 13:10:46,506 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-15 13:10:46,507 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 13:10:46,507 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 13:10:46,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 13:10:46,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 13:10:46,507 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 13:10:46,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:10:46,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 13:10:46,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 13:10:46,508 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-15 13:10:46,508 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-15 13:10:46,508 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 13:10:46,508 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 13:10:46,508 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 13:10:46,508 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-15 13:10:46,509 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 13:10:46,509 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b68a60a1004db041631656acc5775ad13321e46c020cb1a181ddf112036ec7ab [2023-02-15 13:10:46,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 13:10:46,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 13:10:46,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 13:10:46,770 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 13:10:46,770 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 13:10:46,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2023-02-15 13:10:47,872 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 13:10:48,110 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 13:10:48,111 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2023-02-15 13:10:48,124 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9075b406/761e121bf2c34150a1e32e2978c7464c/FLAG20de77be6 [2023-02-15 13:10:48,139 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9075b406/761e121bf2c34150a1e32e2978c7464c [2023-02-15 13:10:48,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 13:10:48,143 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 13:10:48,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 13:10:48,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 13:10:48,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 13:10:48,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:10:48" (1/1) ... [2023-02-15 13:10:48,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68dd59a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:10:48, skipping insertion in model container [2023-02-15 13:10:48,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:10:48" (1/1) ... [2023-02-15 13:10:48,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 13:10:48,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 13:10:48,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:10:48,511 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-02-15 13:10:48,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 13:10:48,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:10:48,584 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 13:10:48,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:10:48,657 INFO L208 MainTranslator]: Completed translation [2023-02-15 13:10:48,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:10:48 WrapperNode [2023-02-15 13:10:48,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 13:10:48,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 13:10:48,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 13:10:48,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 13:10:48,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:10:48" (1/1) ... [2023-02-15 13:10:48,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:10:48" (1/1) ... [2023-02-15 13:10:48,695 INFO L138 Inliner]: procedures = 166, calls = 70, calls flagged for inlining = 22, calls inlined = 4, statements flattened = 23 [2023-02-15 13:10:48,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 13:10:48,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 13:10:48,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 13:10:48,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 13:10:48,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:10:48" (1/1) ... [2023-02-15 13:10:48,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:10:48" (1/1) ... [2023-02-15 13:10:48,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:10:48" (1/1) ... [2023-02-15 13:10:48,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:10:48" (1/1) ... [2023-02-15 13:10:48,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:10:48" (1/1) ... [2023-02-15 13:10:48,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:10:48" (1/1) ... [2023-02-15 13:10:48,718 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:10:48" (1/1) ... [2023-02-15 13:10:48,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:10:48" (1/1) ... [2023-02-15 13:10:48,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 13:10:48,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 13:10:48,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 13:10:48,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 13:10:48,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:10:48" (1/1) ... [2023-02-15 13:10:48,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:10:48,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:10:48,766 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) [2023-02-15 13:10:48,787 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 [2023-02-15 13:10:48,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-02-15 13:10:48,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-02-15 13:10:48,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-15 13:10:48,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 13:10:48,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-15 13:10:48,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-02-15 13:10:48,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 13:10:48,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 13:10:48,881 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 13:10:48,883 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 13:10:49,008 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 13:10:49,012 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 13:10:49,012 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-15 13:10:49,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:10:49 BoogieIcfgContainer [2023-02-15 13:10:49,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 13:10:49,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 13:10:49,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 13:10:49,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 13:10:49,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:10:48" (1/3) ... [2023-02-15 13:10:49,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e8b3f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:10:49, skipping insertion in model container [2023-02-15 13:10:49,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:10:48" (2/3) ... [2023-02-15 13:10:49,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e8b3f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:10:49, skipping insertion in model container [2023-02-15 13:10:49,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:10:49" (3/3) ... [2023-02-15 13:10:49,019 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test3-2.i [2023-02-15 13:10:49,040 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 13:10:49,057 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-15 13:10:49,112 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 13:10:49,117 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;@3524061, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 13:10:49,117 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-15 13:10:49,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 13:10:49,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 13:10:49,126 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:10:49,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:10:49,126 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2023-02-15 13:10:49,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:10:49,131 INFO L85 PathProgramCache]: Analyzing trace with hash 810737947, now seen corresponding path program 1 times [2023-02-15 13:10:49,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 13:10:49,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445075192] [2023-02-15 13:10:49,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:10:49,141 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 [2023-02-15 13:10:49,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 13:10:49,145 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) [2023-02-15 13:10:49,146 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 [2023-02-15 13:10:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:10:49,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 13:10:49,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:10:49,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:10:49,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:10:49,291 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 13:10:49,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445075192] [2023-02-15 13:10:49,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445075192] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:10:49,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:10:49,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 13:10:49,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066252433] [2023-02-15 13:10:49,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:10:49,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 13:10:49,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 13:10:49,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 13:10:49,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-15 13:10:49,321 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 13:10:49,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:10:49,372 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2023-02-15 13:10:49,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 13:10:49,374 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-02-15 13:10:49,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:10:49,379 INFO L225 Difference]: With dead ends: 20 [2023-02-15 13:10:49,379 INFO L226 Difference]: Without dead ends: 18 [2023-02-15 13:10:49,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-02-15 13:10:49,386 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:10:49,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 56 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:10:49,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-15 13:10:49,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-02-15 13:10:49,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 15 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 13:10:49,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2023-02-15 13:10:49,407 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 11 [2023-02-15 13:10:49,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:10:49,407 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2023-02-15 13:10:49,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 13:10:49,408 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2023-02-15 13:10:49,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 13:10:49,409 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:10:49,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:10:49,415 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 [2023-02-15 13:10:49,615 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 [2023-02-15 13:10:49,615 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2023-02-15 13:10:49,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:10:49,616 INFO L85 PathProgramCache]: Analyzing trace with hash -636919425, now seen corresponding path program 1 times [2023-02-15 13:10:49,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 13:10:49,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802004320] [2023-02-15 13:10:49,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:10:49,616 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 [2023-02-15 13:10:49,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 13:10:49,621 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) [2023-02-15 13:10:49,623 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 [2023-02-15 13:10:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:10:49,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 13:10:49,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:10:49,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:10:49,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:10:49,723 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 13:10:49,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802004320] [2023-02-15 13:10:49,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802004320] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:10:49,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:10:49,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 13:10:49,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239148133] [2023-02-15 13:10:49,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:10:49,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 13:10:49,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 13:10:49,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 13:10:49,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-15 13:10:49,725 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 13:10:49,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:10:49,759 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2023-02-15 13:10:49,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 13:10:49,760 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-02-15 13:10:49,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:10:49,760 INFO L225 Difference]: With dead ends: 31 [2023-02-15 13:10:49,760 INFO L226 Difference]: Without dead ends: 31 [2023-02-15 13:10:49,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-02-15 13:10:49,761 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:10:49,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 64 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:10:49,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-15 13:10:49,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2023-02-15 13:10:49,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 13:10:49,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2023-02-15 13:10:49,765 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 12 [2023-02-15 13:10:49,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:10:49,766 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-02-15 13:10:49,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 13:10:49,766 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2023-02-15 13:10:49,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 13:10:49,767 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:10:49,767 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:10:49,774 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 [2023-02-15 13:10:49,971 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 [2023-02-15 13:10:49,973 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2023-02-15 13:10:49,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:10:49,988 INFO L85 PathProgramCache]: Analyzing trace with hash -636927370, now seen corresponding path program 1 times [2023-02-15 13:10:49,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 13:10:49,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290622050] [2023-02-15 13:10:49,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:10:49,992 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 [2023-02-15 13:10:49,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 13:10:49,993 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) [2023-02-15 13:10:49,995 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 [2023-02-15 13:10:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:10:50,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 13:10:50,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:10:50,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:10:50,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:10:50,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 13:10:50,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1290622050] [2023-02-15 13:10:50,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1290622050] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:10:50,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:10:50,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 13:10:50,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355432177] [2023-02-15 13:10:50,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:10:50,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 13:10:50,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 13:10:50,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 13:10:50,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-15 13:10:50,124 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 13:10:50,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:10:50,188 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2023-02-15 13:10:50,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 13:10:50,188 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-02-15 13:10:50,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:10:50,189 INFO L225 Difference]: With dead ends: 30 [2023-02-15 13:10:50,189 INFO L226 Difference]: Without dead ends: 30 [2023-02-15 13:10:50,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-02-15 13:10:50,189 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 30 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:10:50,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 47 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:10:50,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-15 13:10:50,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2023-02-15 13:10:50,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 13:10:50,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2023-02-15 13:10:50,193 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 12 [2023-02-15 13:10:50,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:10:50,193 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2023-02-15 13:10:50,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 13:10:50,193 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2023-02-15 13:10:50,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 13:10:50,194 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:10:50,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:10:50,200 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 [2023-02-15 13:10:50,400 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 [2023-02-15 13:10:50,400 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2023-02-15 13:10:50,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:10:50,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1105890910, now seen corresponding path program 1 times [2023-02-15 13:10:50,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 13:10:50,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219150241] [2023-02-15 13:10:50,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:10:50,401 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 [2023-02-15 13:10:50,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 13:10:50,404 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) [2023-02-15 13:10:50,406 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 [2023-02-15 13:10:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:10:50,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 13:10:50,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:10:50,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:10:50,460 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:10:50,461 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 13:10:50,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219150241] [2023-02-15 13:10:50,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219150241] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:10:50,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:10:50,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:10:50,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386858515] [2023-02-15 13:10:50,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:10:50,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:10:50,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 13:10:50,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:10:50,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:10:50,463 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 13:10:50,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:10:50,479 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2023-02-15 13:10:50,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 13:10:50,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-02-15 13:10:50,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:10:50,480 INFO L225 Difference]: With dead ends: 29 [2023-02-15 13:10:50,480 INFO L226 Difference]: Without dead ends: 27 [2023-02-15 13:10:50,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:10:50,481 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 5 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:10:50,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 49 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:10:50,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-15 13:10:50,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2023-02-15 13:10:50,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 21 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 13:10:50,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2023-02-15 13:10:50,484 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 12 [2023-02-15 13:10:50,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:10:50,484 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2023-02-15 13:10:50,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 13:10:50,484 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2023-02-15 13:10:50,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 13:10:50,485 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:10:50,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:10:50,493 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 (5)] Ended with exit code 0 [2023-02-15 13:10:50,691 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 [2023-02-15 13:10:50,691 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2023-02-15 13:10:50,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:10:50,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1105882965, now seen corresponding path program 1 times [2023-02-15 13:10:50,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 13:10:50,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360675409] [2023-02-15 13:10:50,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:10:50,692 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 [2023-02-15 13:10:50,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 13:10:50,695 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) [2023-02-15 13:10:50,697 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 [2023-02-15 13:10:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:10:50,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 13:10:50,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:10:50,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:10:50,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:10:50,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 13:10:50,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360675409] [2023-02-15 13:10:50,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360675409] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:10:50,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:10:50,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-15 13:10:50,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335347733] [2023-02-15 13:10:50,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:10:50,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 13:10:50,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 13:10:50,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 13:10:50,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-15 13:10:50,775 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 13:10:50,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:10:50,797 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2023-02-15 13:10:50,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 13:10:50,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-02-15 13:10:50,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:10:50,798 INFO L225 Difference]: With dead ends: 22 [2023-02-15 13:10:50,798 INFO L226 Difference]: Without dead ends: 17 [2023-02-15 13:10:50,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-02-15 13:10:50,799 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:10:50,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 78 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:10:50,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-02-15 13:10:50,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-02-15 13:10:50,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 14 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 13:10:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2023-02-15 13:10:50,801 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 12 [2023-02-15 13:10:50,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:10:50,801 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2023-02-15 13:10:50,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 13:10:50,802 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2023-02-15 13:10:50,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-15 13:10:50,802 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:10:50,802 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:10:50,809 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 [2023-02-15 13:10:51,009 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 [2023-02-15 13:10:51,010 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2023-02-15 13:10:51,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:10:51,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1730088061, now seen corresponding path program 1 times [2023-02-15 13:10:51,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 13:10:51,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116712978] [2023-02-15 13:10:51,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:10:51,011 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 [2023-02-15 13:10:51,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 13:10:51,012 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) [2023-02-15 13:10:51,015 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 [2023-02-15 13:10:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:10:51,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 13:10:51,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:10:51,101 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 0 case distinctions, treesize of input 6 treesize of output 7 [2023-02-15 13:10:51,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:10:51,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:10:51,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 13:10:51,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [116712978] [2023-02-15 13:10:51,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [116712978] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:10:51,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:10:51,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 13:10:51,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014500335] [2023-02-15 13:10:51,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:10:51,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 13:10:51,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 13:10:51,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 13:10:51,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-15 13:10:51,140 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 13:10:51,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:10:51,174 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2023-02-15 13:10:51,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 13:10:51,174 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-02-15 13:10:51,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:10:51,175 INFO L225 Difference]: With dead ends: 16 [2023-02-15 13:10:51,175 INFO L226 Difference]: Without dead ends: 16 [2023-02-15 13:10:51,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-02-15 13:10:51,176 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 4 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:10:51,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 27 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:10:51,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-15 13:10:51,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-02-15 13:10:51,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 13:10:51,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2023-02-15 13:10:51,197 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 13 [2023-02-15 13:10:51,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:10:51,198 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2023-02-15 13:10:51,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 13:10:51,198 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2023-02-15 13:10:51,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-15 13:10:51,198 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:10:51,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:10:51,205 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 [2023-02-15 13:10:51,405 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 [2023-02-15 13:10:51,406 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2023-02-15 13:10:51,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:10:51,406 INFO L85 PathProgramCache]: Analyzing trace with hash 462284832, now seen corresponding path program 1 times [2023-02-15 13:10:51,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 13:10:51,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962047621] [2023-02-15 13:10:51,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:10:51,407 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 [2023-02-15 13:10:51,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 13:10:51,408 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) [2023-02-15 13:10:51,419 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 [2023-02-15 13:10:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:10:51,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-15 13:10:51,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:10:51,597 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_entry_point_~p~0#1.base| (_ BitVec 32))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~p~0#1.base|) (_ bv0 1)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~p~0#1.base| (_ bv0 1))))) is different from true [2023-02-15 13:10:51,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:10:51,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 13:10:51,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 13:10:51,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962047621] [2023-02-15 13:10:51,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962047621] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:10:51,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:10:51,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-15 13:10:51,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059616614] [2023-02-15 13:10:51,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:10:51,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 13:10:51,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 13:10:51,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 13:10:51,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=44, Unknown=1, NotChecked=12, Total=72 [2023-02-15 13:10:51,604 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 9 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 13:10:51,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:10:51,693 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2023-02-15 13:10:51,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-15 13:10:51,694 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-02-15 13:10:51,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:10:51,694 INFO L225 Difference]: With dead ends: 15 [2023-02-15 13:10:51,694 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 13:10:51,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=68, Unknown=1, NotChecked=16, Total=110 [2023-02-15 13:10:51,694 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:10:51,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 24 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 12 Unchecked, 0.1s Time] [2023-02-15 13:10:51,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 13:10:51,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 13:10:51,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-02-15 13:10:51,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 13:10:51,695 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2023-02-15 13:10:51,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:10:51,695 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 13:10:51,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 13:10:51,695 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 13:10:51,695 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 13:10:51,697 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (3 of 4 remaining) [2023-02-15 13:10:51,698 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2023-02-15 13:10:51,698 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2023-02-15 13:10:51,698 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (0 of 4 remaining) [2023-02-15 13:10:51,717 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 [2023-02-15 13:10:51,898 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 [2023-02-15 13:10:51,900 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:10:51,904 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 13:10:51,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 01:10:51 BoogieIcfgContainer [2023-02-15 13:10:51,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 13:10:51,906 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 13:10:51,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 13:10:51,907 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 13:10:51,907 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:10:49" (3/4) ... [2023-02-15 13:10:51,908 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 13:10:51,916 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2023-02-15 13:10:51,918 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-02-15 13:10:51,918 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-02-15 13:10:51,918 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-15 13:10:51,956 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 13:10:51,956 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 13:10:51,956 INFO L158 Benchmark]: Toolchain (without parser) took 3813.12ms. Allocated memory was 73.4MB in the beginning and 98.6MB in the end (delta: 25.2MB). Free memory was 46.3MB in the beginning and 52.1MB in the end (delta: -5.8MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2023-02-15 13:10:51,956 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 13:10:51,957 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.00ms. Allocated memory was 73.4MB in the beginning and 98.6MB in the end (delta: 25.2MB). Free memory was 46.1MB in the beginning and 65.4MB in the end (delta: -19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-02-15 13:10:51,957 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.15ms. Allocated memory is still 98.6MB. Free memory was 65.4MB in the beginning and 63.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 13:10:51,957 INFO L158 Benchmark]: Boogie Preprocessor took 29.40ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 62.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 13:10:51,957 INFO L158 Benchmark]: RCFGBuilder took 287.44ms. Allocated memory is still 98.6MB. Free memory was 62.0MB in the beginning and 50.4MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-15 13:10:51,957 INFO L158 Benchmark]: TraceAbstraction took 2891.31ms. Allocated memory is still 98.6MB. Free memory was 49.7MB in the beginning and 55.0MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 13:10:51,957 INFO L158 Benchmark]: Witness Printer took 49.59ms. Allocated memory is still 98.6MB. Free memory was 55.0MB in the beginning and 52.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-15 13:10:51,958 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 73.4MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 514.00ms. Allocated memory was 73.4MB in the beginning and 98.6MB in the end (delta: 25.2MB). Free memory was 46.1MB in the beginning and 65.4MB in the end (delta: -19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.15ms. Allocated memory is still 98.6MB. Free memory was 65.4MB in the beginning and 63.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.40ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 62.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 287.44ms. Allocated memory is still 98.6MB. Free memory was 62.0MB in the beginning and 50.4MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2891.31ms. Allocated memory is still 98.6MB. Free memory was 49.7MB in the beginning and 55.0MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 49.59ms. Allocated memory is still 98.6MB. Free memory was 55.0MB in the beginning and 52.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 764]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 345 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 12 IncrementalHoareTripleChecker+Unchecked, 242 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 239 IncrementalHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 103 mSDtfsCounter, 239 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=3, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 80 ConstructedInterpolants, 10 QuantifiedInterpolants, 388 SizeOfPredicates, 10 NumberOfNonLiveVariables, 283 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-02-15 13:10:51,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE