./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test15-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 574ddb4e 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_test15-1.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 e94333448b9ec2a5ffed0adee00d968fb025c54e55196475ef51117fcee9fc3a --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 21:14:46,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 21:14:46,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 21:14:46,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 21:14:46,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 21:14:46,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 21:14:46,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 21:14:46,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 21:14:46,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 21:14:46,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 21:14:46,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 21:14:46,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 21:14:46,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 21:14:46,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 21:14:46,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 21:14:46,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 21:14:46,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 21:14:46,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 21:14:46,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 21:14:46,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 21:14:46,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 21:14:46,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 21:14:46,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 21:14:46,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 21:14:46,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 21:14:46,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 21:14:46,540 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 21:14:46,541 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 21:14:46,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 21:14:46,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 21:14:46,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 21:14:46,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 21:14:46,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 21:14:46,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 21:14:46,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 21:14:46,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 21:14:46,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 21:14:46,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 21:14:46,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 21:14:46,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 21:14:46,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 21:14:46,548 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-18 21:14:46,572 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 21:14:46,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 21:14:46,572 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 21:14:46,572 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 21:14:46,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 21:14:46,573 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 21:14:46,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 21:14:46,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 21:14:46,574 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 21:14:46,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 21:14:46,575 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 21:14:46,575 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 21:14:46,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 21:14:46,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 21:14:46,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 21:14:46,575 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-18 21:14:46,575 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-18 21:14:46,576 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-18 21:14:46,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 21:14:46,576 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-18 21:14:46,576 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 21:14:46,576 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 21:14:46,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 21:14:46,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 21:14:46,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 21:14:46,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 21:14:46,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 21:14:46,577 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 21:14:46,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 21:14:46,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 21:14:46,578 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 21:14:46,578 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 21:14:46,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 21:14:46,578 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 21:14:46,578 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e94333448b9ec2a5ffed0adee00d968fb025c54e55196475ef51117fcee9fc3a [2023-02-18 21:14:46,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 21:14:46,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 21:14:46,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 21:14:46,803 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 21:14:46,803 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 21:14:46,804 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test15-1.i [2023-02-18 21:14:47,776 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 21:14:48,002 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 21:14:48,003 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test15-1.i [2023-02-18 21:14:48,025 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b88e95232/99944f3aae41449c83188b147dc986c1/FLAGfb389a0ab [2023-02-18 21:14:48,035 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b88e95232/99944f3aae41449c83188b147dc986c1 [2023-02-18 21:14:48,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 21:14:48,037 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 21:14:48,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 21:14:48,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 21:14:48,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 21:14:48,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:14:48" (1/1) ... [2023-02-18 21:14:48,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a48c2de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:14:48, skipping insertion in model container [2023-02-18 21:14:48,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:14:48" (1/1) ... [2023-02-18 21:14:48,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 21:14:48,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 21:14:48,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 21:14:48,308 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) [2023-02-18 21:14:48,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5eff12cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:14:48, skipping insertion in model container [2023-02-18 21:14:48,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 21:14:48,310 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-02-18 21:14:48,312 INFO L158 Benchmark]: Toolchain (without parser) took 273.66ms. Allocated memory is still 127.9MB. Free memory was 100.9MB in the beginning and 86.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-18 21:14:48,312 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory was 102.1MB in the beginning and 101.9MB in the end (delta: 193.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 21:14:48,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.60ms. Allocated memory is still 127.9MB. Free memory was 100.4MB in the beginning and 86.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-18 21:14:48,314 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory was 102.1MB in the beginning and 101.9MB in the end (delta: 193.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.60ms. Allocated memory is still 127.9MB. Free memory was 100.4MB in the beginning and 86.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. 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_test15-1.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 e94333448b9ec2a5ffed0adee00d968fb025c54e55196475ef51117fcee9fc3a --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 21:14:50,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 21:14:50,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 21:14:50,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 21:14:50,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 21:14:50,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 21:14:50,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 21:14:50,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 21:14:50,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 21:14:50,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 21:14:50,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 21:14:50,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 21:14:50,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 21:14:50,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 21:14:50,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 21:14:50,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 21:14:50,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 21:14:50,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 21:14:50,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 21:14:50,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 21:14:50,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 21:14:50,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 21:14:50,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 21:14:50,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 21:14:50,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 21:14:50,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 21:14:50,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 21:14:50,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 21:14:50,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 21:14:50,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 21:14:50,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 21:14:50,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 21:14:50,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 21:14:50,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 21:14:50,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 21:14:50,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 21:14:50,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 21:14:50,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 21:14:50,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 21:14:50,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 21:14:50,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 21:14:50,110 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-02-18 21:14:50,136 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 21:14:50,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 21:14:50,137 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 21:14:50,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 21:14:50,138 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 21:14:50,138 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 21:14:50,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 21:14:50,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 21:14:50,139 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 21:14:50,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 21:14:50,140 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 21:14:50,140 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 21:14:50,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 21:14:50,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 21:14:50,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 21:14:50,141 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-18 21:14:50,141 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-18 21:14:50,141 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-18 21:14:50,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 21:14:50,141 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-18 21:14:50,141 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-18 21:14:50,142 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-18 21:14:50,142 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 21:14:50,142 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 21:14:50,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 21:14:50,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 21:14:50,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 21:14:50,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 21:14:50,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 21:14:50,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 21:14:50,143 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-18 21:14:50,143 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-18 21:14:50,143 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 21:14:50,143 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 21:14:50,144 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 21:14:50,144 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-18 21:14:50,144 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 21:14:50,144 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e94333448b9ec2a5ffed0adee00d968fb025c54e55196475ef51117fcee9fc3a [2023-02-18 21:14:50,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 21:14:50,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 21:14:50,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 21:14:50,393 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 21:14:50,394 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 21:14:50,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test15-1.i [2023-02-18 21:14:51,466 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 21:14:51,631 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 21:14:51,632 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test15-1.i [2023-02-18 21:14:51,645 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2799edf0b/d39e135dc3b04b10bb45240a400ed0a1/FLAGe392b9e82 [2023-02-18 21:14:51,657 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2799edf0b/d39e135dc3b04b10bb45240a400ed0a1 [2023-02-18 21:14:51,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 21:14:51,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 21:14:51,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 21:14:51,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 21:14:51,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 21:14:51,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:14:51" (1/1) ... [2023-02-18 21:14:51,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a1de86d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:14:51, skipping insertion in model container [2023-02-18 21:14:51,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:14:51" (1/1) ... [2023-02-18 21:14:51,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 21:14:51,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 21:14:52,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 21:14:52,025 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-02-18 21:14:52,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 21:14:52,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 21:14:52,098 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 21:14:52,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 21:14:52,180 INFO L208 MainTranslator]: Completed translation [2023-02-18 21:14:52,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:14:52 WrapperNode [2023-02-18 21:14:52,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 21:14:52,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 21:14:52,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 21:14:52,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 21:14:52,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:14:52" (1/1) ... [2023-02-18 21:14:52,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:14:52" (1/1) ... [2023-02-18 21:14:52,280 INFO L138 Inliner]: procedures = 176, calls = 103, calls flagged for inlining = 31, calls inlined = 14, statements flattened = 170 [2023-02-18 21:14:52,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 21:14:52,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 21:14:52,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 21:14:52,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 21:14:52,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:14:52" (1/1) ... [2023-02-18 21:14:52,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:14:52" (1/1) ... [2023-02-18 21:14:52,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:14:52" (1/1) ... [2023-02-18 21:14:52,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:14:52" (1/1) ... [2023-02-18 21:14:52,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:14:52" (1/1) ... [2023-02-18 21:14:52,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:14:52" (1/1) ... [2023-02-18 21:14:52,320 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:14:52" (1/1) ... [2023-02-18 21:14:52,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:14:52" (1/1) ... [2023-02-18 21:14:52,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 21:14:52,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 21:14:52,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 21:14:52,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 21:14:52,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:14:52" (1/1) ... [2023-02-18 21:14:52,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 21:14:52,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 21:14:52,352 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) [2023-02-18 21:14:52,359 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 [2023-02-18 21:14:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-02-18 21:14:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-18 21:14:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 21:14:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-18 21:14:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-18 21:14:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-02-18 21:14:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-02-18 21:14:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-18 21:14:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-02-18 21:14:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-02-18 21:14:52,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-02-18 21:14:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 21:14:52,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 21:14:52,504 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 21:14:52,505 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 21:14:52,791 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 21:14:52,796 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 21:14:52,796 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-18 21:14:52,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 09:14:52 BoogieIcfgContainer [2023-02-18 21:14:52,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 21:14:52,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 21:14:52,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 21:14:52,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 21:14:52,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 09:14:51" (1/3) ... [2023-02-18 21:14:52,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc5b89f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 09:14:52, skipping insertion in model container [2023-02-18 21:14:52,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:14:52" (2/3) ... [2023-02-18 21:14:52,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc5b89f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 09:14:52, skipping insertion in model container [2023-02-18 21:14:52,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 09:14:52" (3/3) ... [2023-02-18 21:14:52,803 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test15-1.i [2023-02-18 21:14:52,813 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 21:14:52,813 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2023-02-18 21:14:52,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 21:14:52,844 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;@5e86333c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 21:14:52,844 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-02-18 21:14:52,847 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 73 states have (on average 1.821917808219178) internal successors, (133), 123 states have internal predecessors, (133), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:14:52,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 21:14:52,852 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:14:52,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:14:52,853 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2023-02-18 21:14:52,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:14:52,858 INFO L85 PathProgramCache]: Analyzing trace with hash -599633160, now seen corresponding path program 1 times [2023-02-18 21:14:52,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:14:52,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484482656] [2023-02-18 21:14:52,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:14:52,867 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 [2023-02-18 21:14:52,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:14:52,871 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) [2023-02-18 21:14:52,873 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 [2023-02-18 21:14:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:14:52,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 21:14:52,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:14:53,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:14:53,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:14:53,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:14:53,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484482656] [2023-02-18 21:14:53,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484482656] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:14:53,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:14:53,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-18 21:14:53,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470312211] [2023-02-18 21:14:53,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:14:53,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 21:14:53,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:14:53,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 21:14:53,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-18 21:14:53,071 INFO L87 Difference]: Start difference. First operand has 129 states, 73 states have (on average 1.821917808219178) internal successors, (133), 123 states have internal predecessors, (133), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 6 states have (on average 1.5) 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) [2023-02-18 21:14:53,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:14:53,173 INFO L93 Difference]: Finished difference Result 129 states and 140 transitions. [2023-02-18 21:14:53,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 21:14:53,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) 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 [2023-02-18 21:14:53,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:14:53,180 INFO L225 Difference]: With dead ends: 129 [2023-02-18 21:14:53,180 INFO L226 Difference]: Without dead ends: 127 [2023-02-18 21:14:53,181 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 [2023-02-18 21:14:53,183 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 128 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 21:14:53,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 511 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 21:14:53,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-02-18 21:14:53,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2023-02-18 21:14:53,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 72 states have (on average 1.8055555555555556) internal successors, (130), 121 states have internal predecessors, (130), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:14:53,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 138 transitions. [2023-02-18 21:14:53,210 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 138 transitions. Word has length 11 [2023-02-18 21:14:53,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:14:53,210 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 138 transitions. [2023-02-18 21:14:53,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) 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) [2023-02-18 21:14:53,211 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 138 transitions. [2023-02-18 21:14:53,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 21:14:53,212 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:14:53,212 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:14:53,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-02-18 21:14:53,418 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 [2023-02-18 21:14:53,419 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2023-02-18 21:14:53,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:14:53,420 INFO L85 PathProgramCache]: Analyzing trace with hash 518474697, now seen corresponding path program 1 times [2023-02-18 21:14:53,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:14:53,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481998581] [2023-02-18 21:14:53,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:14:53,421 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 [2023-02-18 21:14:53,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:14:53,422 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) [2023-02-18 21:14:53,424 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 [2023-02-18 21:14:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:14:53,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 21:14:53,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:14:53,537 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 21:14:53,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:14:53,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:14:53,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481998581] [2023-02-18 21:14:53,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481998581] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:14:53,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:14:53,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-18 21:14:53,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645382167] [2023-02-18 21:14:53,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:14:53,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 21:14:53,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:14:53,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 21:14:53,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-18 21:14:53,540 INFO L87 Difference]: Start difference. First operand 127 states and 138 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-18 21:14:53,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:14:53,618 INFO L93 Difference]: Finished difference Result 127 states and 137 transitions. [2023-02-18 21:14:53,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 21:14:53,619 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2023-02-18 21:14:53,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:14:53,620 INFO L225 Difference]: With dead ends: 127 [2023-02-18 21:14:53,620 INFO L226 Difference]: Without dead ends: 127 [2023-02-18 21:14:53,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-02-18 21:14:53,621 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 123 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 21:14:53,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 470 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 21:14:53,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-02-18 21:14:53,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2023-02-18 21:14:53,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 72 states have (on average 1.7916666666666667) internal successors, (129), 121 states have internal predecessors, (129), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:14:53,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 137 transitions. [2023-02-18 21:14:53,628 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 137 transitions. Word has length 17 [2023-02-18 21:14:53,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:14:53,628 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 137 transitions. [2023-02-18 21:14:53,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-18 21:14:53,629 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 137 transitions. [2023-02-18 21:14:53,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-18 21:14:53,629 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:14:53,629 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:14:53,648 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 [2023-02-18 21:14:53,836 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 [2023-02-18 21:14:53,837 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2023-02-18 21:14:53,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:14:53,837 INFO L85 PathProgramCache]: Analyzing trace with hash -222458304, now seen corresponding path program 1 times [2023-02-18 21:14:53,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:14:53,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1060965456] [2023-02-18 21:14:53,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:14:53,838 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 [2023-02-18 21:14:53,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:14:53,839 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) [2023-02-18 21:14:53,841 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 [2023-02-18 21:14:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:14:53,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-18 21:14:53,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:14:53,922 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 5 [2023-02-18 21:14:53,948 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_zalloc_#t~malloc13#1.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_zalloc_#t~malloc13#1.base|)) (exists ((v_ArrVal_20 (_ BitVec 1))) (= |c_#valid| (store |c_old(#valid)| |ldv_zalloc_#t~malloc13#1.base| v_ArrVal_20))))) is different from true [2023-02-18 21:14:53,959 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:14:53,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2023-02-18 21:14:53,966 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 3 not checked. [2023-02-18 21:14:53,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:14:54,082 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 21:14:54,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:14:54,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1060965456] [2023-02-18 21:14:54,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1060965456] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 21:14:54,083 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:14:54,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2023-02-18 21:14:54,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092936608] [2023-02-18 21:14:54,083 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:14:54,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-18 21:14:54,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:14:54,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-18 21:14:54,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=43, Unknown=1, NotChecked=12, Total=72 [2023-02-18 21:14:54,088 INFO L87 Difference]: Start difference. First operand 127 states and 137 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 2 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-18 21:14:54,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:14:54,447 INFO L93 Difference]: Finished difference Result 161 states and 174 transitions. [2023-02-18 21:14:54,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 21:14:54,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 2 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22 [2023-02-18 21:14:54,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:14:54,448 INFO L225 Difference]: With dead ends: 161 [2023-02-18 21:14:54,448 INFO L226 Difference]: Without dead ends: 161 [2023-02-18 21:14:54,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=67, Unknown=1, NotChecked=16, Total=110 [2023-02-18 21:14:54,449 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 105 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 131 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 21:14:54,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 483 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 368 Invalid, 0 Unknown, 131 Unchecked, 0.3s Time] [2023-02-18 21:14:54,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-02-18 21:14:54,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 140. [2023-02-18 21:14:54,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 88 states have (on average 1.75) internal successors, (154), 134 states have internal predecessors, (154), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:14:54,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 162 transitions. [2023-02-18 21:14:54,456 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 162 transitions. Word has length 22 [2023-02-18 21:14:54,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:14:54,456 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 162 transitions. [2023-02-18 21:14:54,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 2 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-18 21:14:54,456 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 162 transitions. [2023-02-18 21:14:54,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-18 21:14:54,457 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:14:54,457 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:14:54,466 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 [2023-02-18 21:14:54,664 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 [2023-02-18 21:14:54,664 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2023-02-18 21:14:54,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:14:54,665 INFO L85 PathProgramCache]: Analyzing trace with hash -222458303, now seen corresponding path program 1 times [2023-02-18 21:14:54,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:14:54,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432972749] [2023-02-18 21:14:54,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:14:54,666 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 [2023-02-18 21:14:54,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:14:54,667 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) [2023-02-18 21:14:54,669 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 [2023-02-18 21:14:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:14:54,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 20 conjunts are in the unsatisfiable core [2023-02-18 21:14:54,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:14:54,761 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 5 [2023-02-18 21:14:54,763 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 5 [2023-02-18 21:14:54,791 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_zalloc_#t~malloc13#1.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_zalloc_#t~malloc13#1.base|)) (exists ((v_ArrVal_36 (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |ldv_zalloc_#t~malloc13#1.base| v_ArrVal_36))))) is different from true [2023-02-18 21:14:54,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 21:14:54,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-02-18 21:14:54,820 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:14:54,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2023-02-18 21:14:54,830 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 3 not checked. [2023-02-18 21:14:54,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:14:56,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:14:56,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432972749] [2023-02-18 21:14:56,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432972749] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 21:14:56,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1823415982] [2023-02-18 21:14:56,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:14:56,902 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-02-18 21:14:56,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-02-18 21:14:56,904 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-02-18 21:14:56,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-02-18 21:14:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:14:57,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 21 conjunts are in the unsatisfiable core [2023-02-18 21:14:57,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:14:57,018 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 5 [2023-02-18 21:14:57,021 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 5 [2023-02-18 21:14:57,031 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_zalloc_#t~malloc13#1.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_zalloc_#t~malloc13#1.base|)) (exists ((v_ArrVal_51 (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |ldv_zalloc_#t~malloc13#1.base| v_ArrVal_51))))) is different from true [2023-02-18 21:14:57,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 21:14:57,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-02-18 21:14:57,046 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:14:57,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2023-02-18 21:14:57,047 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 3 not checked. [2023-02-18 21:14:57,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:14:57,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1823415982] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 21:14:57,114 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:14:57,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2023-02-18 21:14:57,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287197230] [2023-02-18 21:14:57,114 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:14:57,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-18 21:14:57,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:14:57,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-18 21:14:57,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=70, Unknown=3, NotChecked=34, Total=132 [2023-02-18 21:14:57,115 INFO L87 Difference]: Start difference. First operand 140 states and 162 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 7 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-18 21:14:57,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:14:57,582 INFO L93 Difference]: Finished difference Result 167 states and 189 transitions. [2023-02-18 21:14:57,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 21:14:57,583 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 7 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22 [2023-02-18 21:14:57,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:14:57,584 INFO L225 Difference]: With dead ends: 167 [2023-02-18 21:14:57,584 INFO L226 Difference]: Without dead ends: 167 [2023-02-18 21:14:57,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=33, Invalid=104, Unknown=3, NotChecked=42, Total=182 [2023-02-18 21:14:57,584 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 223 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 252 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 21:14:57,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 344 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 381 Invalid, 0 Unknown, 252 Unchecked, 0.4s Time] [2023-02-18 21:14:57,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-02-18 21:14:57,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 135. [2023-02-18 21:14:57,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 88 states have (on average 1.6704545454545454) internal successors, (147), 129 states have internal predecessors, (147), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:14:57,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 155 transitions. [2023-02-18 21:14:57,590 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 155 transitions. Word has length 22 [2023-02-18 21:14:57,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:14:57,590 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 155 transitions. [2023-02-18 21:14:57,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 7 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-18 21:14:57,590 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 155 transitions. [2023-02-18 21:14:57,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-18 21:14:57,591 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:14:57,591 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:14:57,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-02-18 21:14:57,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-02-18 21:14:58,000 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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-02-18 21:14:58,001 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2023-02-18 21:14:58,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:14:58,001 INFO L85 PathProgramCache]: Analyzing trace with hash -126280059, now seen corresponding path program 1 times [2023-02-18 21:14:58,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:14:58,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536822330] [2023-02-18 21:14:58,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:14:58,004 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 [2023-02-18 21:14:58,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:14:58,008 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) [2023-02-18 21:14:58,011 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 [2023-02-18 21:14:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:14:58,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-18 21:14:58,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:14:58,095 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 5 [2023-02-18 21:14:58,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-18 21:14:58,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-02-18 21:14:58,151 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-18 21:14:58,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:14:58,151 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:14:58,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536822330] [2023-02-18 21:14:58,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536822330] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:14:58,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:14:58,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-18 21:14:58,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877598126] [2023-02-18 21:14:58,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:14:58,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 21:14:58,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:14:58,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 21:14:58,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-02-18 21:14:58,153 INFO L87 Difference]: Start difference. First operand 135 states and 155 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 21:14:58,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:14:58,421 INFO L93 Difference]: Finished difference Result 135 states and 154 transitions. [2023-02-18 21:14:58,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-18 21:14:58,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2023-02-18 21:14:58,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:14:58,422 INFO L225 Difference]: With dead ends: 135 [2023-02-18 21:14:58,422 INFO L226 Difference]: Without dead ends: 135 [2023-02-18 21:14:58,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-02-18 21:14:58,423 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 11 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 21:14:58,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 484 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 21:14:58,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-02-18 21:14:58,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 134. [2023-02-18 21:14:58,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 88 states have (on average 1.6590909090909092) internal successors, (146), 128 states have internal predecessors, (146), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:14:58,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 154 transitions. [2023-02-18 21:14:58,427 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 154 transitions. Word has length 27 [2023-02-18 21:14:58,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:14:58,427 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 154 transitions. [2023-02-18 21:14:58,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 21:14:58,427 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 154 transitions. [2023-02-18 21:14:58,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-18 21:14:58,427 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:14:58,428 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:14:58,436 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 [2023-02-18 21:14:58,634 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 [2023-02-18 21:14:58,635 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2023-02-18 21:14:58,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:14:58,635 INFO L85 PathProgramCache]: Analyzing trace with hash -126280058, now seen corresponding path program 1 times [2023-02-18 21:14:58,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:14:58,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474219638] [2023-02-18 21:14:58,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:14:58,636 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 [2023-02-18 21:14:58,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:14:58,641 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) [2023-02-18 21:14:58,643 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 [2023-02-18 21:14:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:14:58,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-18 21:14:58,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:14:58,715 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 5 [2023-02-18 21:14:58,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-18 21:14:58,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-18 21:14:58,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-02-18 21:14:58,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-02-18 21:14:58,758 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-18 21:14:58,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:14:58,759 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:14:58,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474219638] [2023-02-18 21:14:58,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [474219638] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:14:58,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:14:58,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-18 21:14:58,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219207525] [2023-02-18 21:14:58,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:14:58,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 21:14:58,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:14:58,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 21:14:58,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-02-18 21:14:58,761 INFO L87 Difference]: Start difference. First operand 134 states and 154 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 21:14:59,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:14:59,047 INFO L93 Difference]: Finished difference Result 143 states and 161 transitions. [2023-02-18 21:14:59,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-18 21:14:59,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2023-02-18 21:14:59,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:14:59,049 INFO L225 Difference]: With dead ends: 143 [2023-02-18 21:14:59,049 INFO L226 Difference]: Without dead ends: 143 [2023-02-18 21:14:59,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-02-18 21:14:59,050 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 18 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 21:14:59,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 527 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 21:14:59,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-02-18 21:14:59,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 133. [2023-02-18 21:14:59,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 88 states have (on average 1.6477272727272727) internal successors, (145), 127 states have internal predecessors, (145), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:14:59,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 153 transitions. [2023-02-18 21:14:59,054 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 153 transitions. Word has length 27 [2023-02-18 21:14:59,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:14:59,054 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 153 transitions. [2023-02-18 21:14:59,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 21:14:59,054 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 153 transitions. [2023-02-18 21:14:59,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-18 21:14:59,055 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:14:59,055 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:14:59,081 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 (8)] Ended with exit code 0 [2023-02-18 21:14:59,262 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 [2023-02-18 21:14:59,263 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2023-02-18 21:14:59,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:14:59,263 INFO L85 PathProgramCache]: Analyzing trace with hash -126277696, now seen corresponding path program 1 times [2023-02-18 21:14:59,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:14:59,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493867320] [2023-02-18 21:14:59,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:14:59,264 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 [2023-02-18 21:14:59,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:14:59,265 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 21:14:59,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-02-18 21:14:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:14:59,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-18 21:14:59,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:14:59,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-18 21:14:59,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2023-02-18 21:14:59,350 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-18 21:14:59,350 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:14:59,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:14:59,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1493867320] [2023-02-18 21:14:59,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1493867320] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:14:59,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:14:59,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-02-18 21:14:59,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323622034] [2023-02-18 21:14:59,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:14:59,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 21:14:59,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:14:59,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 21:14:59,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-02-18 21:14:59,352 INFO L87 Difference]: Start difference. First operand 133 states and 153 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 21:14:59,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:14:59,453 INFO L93 Difference]: Finished difference Result 130 states and 148 transitions. [2023-02-18 21:14:59,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 21:14:59,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2023-02-18 21:14:59,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:14:59,455 INFO L225 Difference]: With dead ends: 130 [2023-02-18 21:14:59,455 INFO L226 Difference]: Without dead ends: 130 [2023-02-18 21:14:59,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-02-18 21:14:59,455 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 6 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 21:14:59,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 687 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 21:14:59,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-02-18 21:14:59,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2023-02-18 21:14:59,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 85 states have (on average 1.6470588235294117) internal successors, (140), 124 states have internal predecessors, (140), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:14:59,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 148 transitions. [2023-02-18 21:14:59,459 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 148 transitions. Word has length 27 [2023-02-18 21:14:59,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:14:59,459 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 148 transitions. [2023-02-18 21:14:59,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 21:14:59,459 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 148 transitions. [2023-02-18 21:14:59,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-18 21:14:59,459 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:14:59,459 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:14:59,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-02-18 21:14:59,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:14:59,667 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2023-02-18 21:14:59,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:14:59,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1096052090, now seen corresponding path program 1 times [2023-02-18 21:14:59,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:14:59,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092344620] [2023-02-18 21:14:59,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:14:59,668 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 [2023-02-18 21:14:59,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:14:59,669 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 21:14:59,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-02-18 21:14:59,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:14:59,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 20 conjunts are in the unsatisfiable core [2023-02-18 21:14:59,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:14:59,755 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 5 [2023-02-18 21:14:59,780 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_zalloc_#t~malloc13#1.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_zalloc_#t~malloc13#1.base|)) (exists ((v_ArrVal_132 (_ BitVec 1))) (= |c_#valid| (store |c_old(#valid)| |ldv_zalloc_#t~malloc13#1.base| v_ArrVal_132))))) is different from true [2023-02-18 21:14:59,786 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:14:59,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2023-02-18 21:14:59,809 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:14:59,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2023-02-18 21:14:59,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-18 21:14:59,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2023-02-18 21:14:59,848 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 6 not checked. [2023-02-18 21:14:59,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:14:59,937 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 21:14:59,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:14:59,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092344620] [2023-02-18 21:14:59,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092344620] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 21:14:59,937 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:14:59,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 12 [2023-02-18 21:14:59,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744656084] [2023-02-18 21:14:59,938 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:14:59,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-18 21:14:59,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:14:59,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-18 21:14:59,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=105, Unknown=1, NotChecked=20, Total=156 [2023-02-18 21:14:59,939 INFO L87 Difference]: Start difference. First operand 130 states and 148 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 10 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-18 21:15:02,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:15:02,374 INFO L93 Difference]: Finished difference Result 153 states and 165 transitions. [2023-02-18 21:15:02,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 21:15:02,375 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 10 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 29 [2023-02-18 21:15:02,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:15:02,375 INFO L225 Difference]: With dead ends: 153 [2023-02-18 21:15:02,375 INFO L226 Difference]: Without dead ends: 153 [2023-02-18 21:15:02,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 38 SyntacticMatches, 7 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=48, Invalid=164, Unknown=2, NotChecked=26, Total=240 [2023-02-18 21:15:02,376 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 90 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 122 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 21:15:02,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 581 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 460 Invalid, 0 Unknown, 122 Unchecked, 0.4s Time] [2023-02-18 21:15:02,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-02-18 21:15:02,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 129. [2023-02-18 21:15:02,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 85 states have (on average 1.6352941176470588) internal successors, (139), 123 states have internal predecessors, (139), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:15:02,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 147 transitions. [2023-02-18 21:15:02,380 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 147 transitions. Word has length 29 [2023-02-18 21:15:02,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:15:02,380 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 147 transitions. [2023-02-18 21:15:02,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 10 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-18 21:15:02,380 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 147 transitions. [2023-02-18 21:15:02,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-18 21:15:02,381 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:15:02,381 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:15:02,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-02-18 21:15:02,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:15:02,588 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2023-02-18 21:15:02,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:15:02,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1096052089, now seen corresponding path program 1 times [2023-02-18 21:15:02,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:15:02,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363220717] [2023-02-18 21:15:02,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:15:02,589 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:15:02,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:15:02,590 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2023-02-18 21:15:02,620 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 (11)] Waiting until timeout for monitored process [2023-02-18 21:15:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:15:02,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 29 conjunts are in the unsatisfiable core [2023-02-18 21:15:02,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:15:02,688 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 5 [2023-02-18 21:15:02,690 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 5 [2023-02-18 21:15:02,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 21:15:02,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-02-18 21:15:02,749 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:15:02,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2023-02-18 21:15:02,788 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_zalloc_#t~malloc13#1.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_zalloc_#t~malloc13#1.base|)) (exists ((v_ArrVal_166 (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |ldv_zalloc_#t~malloc13#1.base| v_ArrVal_166))))) is different from true [2023-02-18 21:15:02,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 21:15:02,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-02-18 21:15:02,800 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:15:02,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 75 [2023-02-18 21:15:02,819 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 6 not checked. [2023-02-18 21:15:02,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:15:04,929 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:15:04,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363220717] [2023-02-18 21:15:04,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363220717] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 21:15:04,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2049640010] [2023-02-18 21:15:04,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:15:04,929 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-02-18 21:15:04,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-02-18 21:15:04,932 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-02-18 21:15:04,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-02-18 21:15:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:15:05,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 28 conjunts are in the unsatisfiable core [2023-02-18 21:15:05,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:15:05,096 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 5 [2023-02-18 21:15:05,098 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 5 [2023-02-18 21:15:05,106 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_zalloc_#t~malloc13#1.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_zalloc_#t~malloc13#1.base|)) (exists ((v_ArrVal_193 (_ BitVec 1))) (= |c_#valid| (store |c_old(#valid)| |ldv_zalloc_#t~malloc13#1.base| v_ArrVal_193))) (exists ((v_ArrVal_194 (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |ldv_zalloc_#t~malloc13#1.base| v_ArrVal_194))))) is different from true [2023-02-18 21:15:05,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 21:15:05,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-02-18 21:15:05,117 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:15:05,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2023-02-18 21:15:05,123 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_195 (_ BitVec 32)) (|ldv_zalloc_#Ultimate.meminit_#ptr#1.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_zalloc_#Ultimate.meminit_#ptr#1.base|)) (= |c_#length| (store |c_old(#length)| |ldv_zalloc_#Ultimate.meminit_#ptr#1.base| v_ArrVal_195)))) is different from true [2023-02-18 21:15:05,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 21:15:05,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-02-18 21:15:05,132 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:15:05,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2023-02-18 21:15:05,134 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 9 not checked. [2023-02-18 21:15:05,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:15:05,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2049640010] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 21:15:05,183 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:15:05,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 12 [2023-02-18 21:15:05,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050256409] [2023-02-18 21:15:05,184 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:15:05,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-18 21:15:05,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:15:05,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-18 21:15:05,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=105, Unknown=4, NotChecked=66, Total=210 [2023-02-18 21:15:05,185 INFO L87 Difference]: Start difference. First operand 129 states and 147 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 11 states have internal predecessors, (31), 3 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-18 21:15:05,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:15:05,840 INFO L93 Difference]: Finished difference Result 151 states and 163 transitions. [2023-02-18 21:15:05,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-18 21:15:05,840 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 11 states have internal predecessors, (31), 3 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 29 [2023-02-18 21:15:05,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:15:05,841 INFO L225 Difference]: With dead ends: 151 [2023-02-18 21:15:05,841 INFO L226 Difference]: Without dead ends: 151 [2023-02-18 21:15:05,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=45, Invalid=145, Unknown=4, NotChecked=78, Total=272 [2023-02-18 21:15:05,842 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 321 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 360 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-18 21:15:05,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 354 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 434 Invalid, 3 Unknown, 360 Unchecked, 0.6s Time] [2023-02-18 21:15:05,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-02-18 21:15:05,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 127. [2023-02-18 21:15:05,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 85 states have (on average 1.611764705882353) internal successors, (137), 121 states have internal predecessors, (137), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:15:05,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 145 transitions. [2023-02-18 21:15:05,845 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 145 transitions. Word has length 29 [2023-02-18 21:15:05,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:15:05,845 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 145 transitions. [2023-02-18 21:15:05,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 11 states have internal predecessors, (31), 3 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-18 21:15:05,845 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 145 transitions. [2023-02-18 21:15:05,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-18 21:15:05,846 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:15:05,846 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:15:05,864 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 (11)] Forceful destruction successful, exit code 0 [2023-02-18 21:15:06,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-02-18 21:15:06,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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=3,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-02-18 21:15:06,256 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2023-02-18 21:15:06,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:15:06,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1039070521, now seen corresponding path program 1 times [2023-02-18 21:15:06,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:15:06,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843137383] [2023-02-18 21:15:06,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:15:06,257 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 [2023-02-18 21:15:06,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:15:06,258 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2023-02-18 21:15:06,261 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 (13)] Waiting until timeout for monitored process [2023-02-18 21:15:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:15:06,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 21:15:06,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:15:06,352 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-18 21:15:06,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:15:06,353 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:15:06,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843137383] [2023-02-18 21:15:06,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843137383] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:15:06,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:15:06,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 21:15:06,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617672251] [2023-02-18 21:15:06,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:15:06,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 21:15:06,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:15:06,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 21:15:06,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 21:15:06,354 INFO L87 Difference]: Start difference. First operand 127 states and 145 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 21:15:06,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:15:06,524 INFO L93 Difference]: Finished difference Result 163 states and 184 transitions. [2023-02-18 21:15:06,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 21:15:06,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2023-02-18 21:15:06,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:15:06,525 INFO L225 Difference]: With dead ends: 163 [2023-02-18 21:15:06,525 INFO L226 Difference]: Without dead ends: 163 [2023-02-18 21:15:06,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:15:06,526 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 109 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 21:15:06,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 229 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 21:15:06,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-02-18 21:15:06,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 126. [2023-02-18 21:15:06,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 85 states have (on average 1.6) internal successors, (136), 120 states have internal predecessors, (136), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:15:06,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 144 transitions. [2023-02-18 21:15:06,529 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 144 transitions. Word has length 31 [2023-02-18 21:15:06,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:15:06,529 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 144 transitions. [2023-02-18 21:15:06,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 21:15:06,529 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 144 transitions. [2023-02-18 21:15:06,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-18 21:15:06,529 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:15:06,529 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:15:06,539 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 (13)] Forceful destruction successful, exit code 0 [2023-02-18 21:15:06,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /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 [2023-02-18 21:15:06,730 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2023-02-18 21:15:06,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:15:06,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1039070520, now seen corresponding path program 1 times [2023-02-18 21:15:06,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:15:06,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465868010] [2023-02-18 21:15:06,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:15:06,732 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 [2023-02-18 21:15:06,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:15:06,733 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2023-02-18 21:15:06,733 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 (14)] Waiting until timeout for monitored process [2023-02-18 21:15:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:15:06,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-18 21:15:06,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:15:06,861 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-18 21:15:06,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:15:06,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2023-02-18 21:15:07,032 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-18 21:15:07,032 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:15:07,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465868010] [2023-02-18 21:15:07,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [465868010] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 21:15:07,032 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:15:07,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-02-18 21:15:07,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671183135] [2023-02-18 21:15:07,032 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:15:07,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-18 21:15:07,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:15:07,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-18 21:15:07,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-02-18 21:15:07,033 INFO L87 Difference]: Start difference. First operand 126 states and 144 transitions. Second operand has 14 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-02-18 21:15:07,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:15:07,553 INFO L93 Difference]: Finished difference Result 179 states and 199 transitions. [2023-02-18 21:15:07,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 21:15:07,553 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 31 [2023-02-18 21:15:07,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:15:07,554 INFO L225 Difference]: With dead ends: 179 [2023-02-18 21:15:07,554 INFO L226 Difference]: Without dead ends: 179 [2023-02-18 21:15:07,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-02-18 21:15:07,555 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 358 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-18 21:15:07,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 671 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-18 21:15:07,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-02-18 21:15:07,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 125. [2023-02-18 21:15:07,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 85 states have (on average 1.588235294117647) internal successors, (135), 119 states have internal predecessors, (135), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:15:07,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 143 transitions. [2023-02-18 21:15:07,558 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 143 transitions. Word has length 31 [2023-02-18 21:15:07,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:15:07,558 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 143 transitions. [2023-02-18 21:15:07,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-02-18 21:15:07,558 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 143 transitions. [2023-02-18 21:15:07,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-02-18 21:15:07,558 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:15:07,559 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:15:07,566 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 (14)] Forceful destruction successful, exit code 0 [2023-02-18 21:15:07,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /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 [2023-02-18 21:15:07,766 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2023-02-18 21:15:07,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:15:07,766 INFO L85 PathProgramCache]: Analyzing trace with hash -2114357432, now seen corresponding path program 1 times [2023-02-18 21:15:07,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:15:07,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [996103811] [2023-02-18 21:15:07,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:15:07,767 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 [2023-02-18 21:15:07,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:15:07,768 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2023-02-18 21:15:07,771 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 (15)] Waiting until timeout for monitored process [2023-02-18 21:15:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:15:07,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-18 21:15:07,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:15:07,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-18 21:15:07,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-02-18 21:15:07,999 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-18 21:15:08,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:15:08,051 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-18 21:15:08,051 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:15:08,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [996103811] [2023-02-18 21:15:08,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [996103811] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-18 21:15:08,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 21:15:08,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 14 [2023-02-18 21:15:08,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515662441] [2023-02-18 21:15:08,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:15:08,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 21:15:08,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:15:08,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 21:15:08,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-02-18 21:15:08,052 INFO L87 Difference]: Start difference. First operand 125 states and 143 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 21:15:08,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:15:08,368 INFO L93 Difference]: Finished difference Result 161 states and 182 transitions. [2023-02-18 21:15:08,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 21:15:08,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2023-02-18 21:15:08,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:15:08,369 INFO L225 Difference]: With dead ends: 161 [2023-02-18 21:15:08,369 INFO L226 Difference]: Without dead ends: 161 [2023-02-18 21:15:08,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2023-02-18 21:15:08,369 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 132 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 21:15:08,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 426 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 21:15:08,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-02-18 21:15:08,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 124. [2023-02-18 21:15:08,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 85 states have (on average 1.576470588235294) internal successors, (134), 118 states have internal predecessors, (134), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:15:08,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 142 transitions. [2023-02-18 21:15:08,373 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 142 transitions. Word has length 33 [2023-02-18 21:15:08,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:15:08,373 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 142 transitions. [2023-02-18 21:15:08,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 21:15:08,373 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 142 transitions. [2023-02-18 21:15:08,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-02-18 21:15:08,374 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:15:08,374 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:15:08,382 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 (15)] Forceful destruction successful, exit code 0 [2023-02-18 21:15:08,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /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 [2023-02-18 21:15:08,582 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2023-02-18 21:15:08,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:15:08,582 INFO L85 PathProgramCache]: Analyzing trace with hash -2114357431, now seen corresponding path program 1 times [2023-02-18 21:15:08,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:15:08,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296998542] [2023-02-18 21:15:08,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:15:08,583 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 [2023-02-18 21:15:08,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:15:08,584 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2023-02-18 21:15:08,611 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 (16)] Waiting until timeout for monitored process [2023-02-18 21:15:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:15:08,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 30 conjunts are in the unsatisfiable core [2023-02-18 21:15:08,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:15:08,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-02-18 21:15:08,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-18 21:15:08,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-02-18 21:15:08,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-02-18 21:15:08,827 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-18 21:15:08,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:15:09,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2023-02-18 21:15:09,284 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-18 21:15:09,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:15:09,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296998542] [2023-02-18 21:15:09,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296998542] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 21:15:09,285 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:15:09,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 21 [2023-02-18 21:15:09,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110400766] [2023-02-18 21:15:09,286 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:15:09,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-18 21:15:09,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:15:09,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-18 21:15:09,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2023-02-18 21:15:09,288 INFO L87 Difference]: Start difference. First operand 124 states and 142 transitions. Second operand has 22 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 19 states have internal predecessors, (43), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2023-02-18 21:15:10,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:15:10,511 INFO L93 Difference]: Finished difference Result 177 states and 197 transitions. [2023-02-18 21:15:10,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-18 21:15:10,511 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 19 states have internal predecessors, (43), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 33 [2023-02-18 21:15:10,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:15:10,522 INFO L225 Difference]: With dead ends: 177 [2023-02-18 21:15:10,522 INFO L226 Difference]: Without dead ends: 177 [2023-02-18 21:15:10,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=124, Invalid=632, Unknown=0, NotChecked=0, Total=756 [2023-02-18 21:15:10,522 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 393 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-02-18 21:15:10,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 1103 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-02-18 21:15:10,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-02-18 21:15:10,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 123. [2023-02-18 21:15:10,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 85 states have (on average 1.5647058823529412) internal successors, (133), 117 states have internal predecessors, (133), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:15:10,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2023-02-18 21:15:10,525 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 33 [2023-02-18 21:15:10,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:15:10,525 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2023-02-18 21:15:10,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 19 states have internal predecessors, (43), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2023-02-18 21:15:10,525 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2023-02-18 21:15:10,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-18 21:15:10,526 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:15:10,526 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:15:10,541 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 (16)] Forceful destruction successful, exit code 0 [2023-02-18 21:15:10,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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 [2023-02-18 21:15:10,726 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 47 more)] === [2023-02-18 21:15:10,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:15:10,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1120570930, now seen corresponding path program 1 times [2023-02-18 21:15:10,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:15:10,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003118228] [2023-02-18 21:15:10,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:15:10,727 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 [2023-02-18 21:15:10,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:15:10,729 INFO L229 MonitoredProcess]: Starting monitored process 17 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) [2023-02-18 21:15:10,730 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 (17)] Waiting until timeout for monitored process [2023-02-18 21:15:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:15:10,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 58 conjunts are in the unsatisfiable core [2023-02-18 21:15:10,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:15:10,852 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 5 [2023-02-18 21:15:10,918 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:15:10,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2023-02-18 21:15:10,971 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:15:10,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 36 treesize of output 81 [2023-02-18 21:15:11,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-18 21:15:11,075 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:15:11,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 162 [2023-02-18 21:15:11,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 106 [2023-02-18 21:15:11,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-02-18 21:15:11,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 109 [2023-02-18 21:15:11,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-02-18 21:15:11,487 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:15:11,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 19 select indices, 19 select index equivalence classes, 1 disjoint index pairs (out of 171 index pairs), introduced 28 new quantified variables, introduced 171 case distinctions, treesize of input 1052 treesize of output 1001