./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test11_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_test11_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 02acfb70bf31515ceb84abad2b1306b0eab86ac3ab86c4ec829443e87c9da071 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 21:07:55,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 21:07:55,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 21:07:55,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 21:07:55,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 21:07:55,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 21:07:55,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 21:07:55,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 21:07:55,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 21:07:55,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 21:07:55,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 21:07:55,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 21:07:55,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 21:07:55,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 21:07:55,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 21:07:55,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 21:07:55,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 21:07:55,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 21:07:55,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 21:07:55,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 21:07:55,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 21:07:55,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 21:07:55,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 21:07:55,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 21:07:55,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 21:07:55,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 21:07:55,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 21:07:55,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 21:07:55,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 21:07:55,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 21:07:55,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 21:07:55,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 21:07:55,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 21:07:55,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 21:07:55,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 21:07:55,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 21:07:55,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 21:07:55,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 21:07:55,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 21:07:55,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 21:07:55,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 21:07:55,153 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-18 21:07:55,176 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 21:07:55,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 21:07:55,176 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 21:07:55,176 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 21:07:55,177 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 21:07:55,177 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 21:07:55,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 21:07:55,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 21:07:55,178 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 21:07:55,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 21:07:55,179 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 21:07:55,179 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 21:07:55,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 21:07:55,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 21:07:55,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 21:07:55,179 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-18 21:07:55,180 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-18 21:07:55,180 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-18 21:07:55,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 21:07:55,180 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-18 21:07:55,181 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 21:07:55,181 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 21:07:55,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 21:07:55,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 21:07:55,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 21:07:55,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 21:07:55,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 21:07:55,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 21:07:55,182 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 21:07:55,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 21:07:55,182 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 21:07:55,182 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 21:07:55,182 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 21:07:55,182 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 21:07:55,183 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02acfb70bf31515ceb84abad2b1306b0eab86ac3ab86c4ec829443e87c9da071 [2023-02-18 21:07:55,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 21:07:55,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 21:07:55,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 21:07:55,392 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 21:07:55,392 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 21:07:55,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test11_1.i [2023-02-18 21:07:56,346 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 21:07:56,514 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 21:07:56,515 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test11_1.i [2023-02-18 21:07:56,524 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b538dfaf3/ca0a13e1b31d4775b92758a5780d7283/FLAG7950be289 [2023-02-18 21:07:56,538 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b538dfaf3/ca0a13e1b31d4775b92758a5780d7283 [2023-02-18 21:07:56,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 21:07:56,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 21:07:56,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 21:07:56,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 21:07:56,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 21:07:56,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:07:56" (1/1) ... [2023-02-18 21:07:56,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54be878f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:07:56, skipping insertion in model container [2023-02-18 21:07:56,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:07:56" (1/1) ... [2023-02-18 21:07:56,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 21:07:56,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 21:07:56,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 21:07:56,888 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 21:07:56,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5ca6447e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:07:56, skipping insertion in model container [2023-02-18 21:07:56,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 21:07:56,889 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-02-18 21:07:56,890 INFO L158 Benchmark]: Toolchain (without parser) took 348.87ms. Allocated memory is still 132.1MB. Free memory was 92.3MB in the beginning and 78.0MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-18 21:07:56,891 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 132.1MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 21:07:56,892 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.39ms. Allocated memory is still 132.1MB. Free memory was 92.2MB in the beginning and 78.0MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-18 21:07:56,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 132.1MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.39ms. Allocated memory is still 132.1MB. Free memory was 92.2MB in the beginning and 78.0MB 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_test11_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 02acfb70bf31515ceb84abad2b1306b0eab86ac3ab86c4ec829443e87c9da071 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 21:07:58,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 21:07:58,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 21:07:58,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 21:07:58,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 21:07:58,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 21:07:58,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 21:07:58,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 21:07:58,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 21:07:58,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 21:07:58,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 21:07:58,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 21:07:58,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 21:07:58,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 21:07:58,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 21:07:58,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 21:07:58,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 21:07:58,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 21:07:58,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 21:07:58,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 21:07:58,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 21:07:58,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 21:07:58,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 21:07:58,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 21:07:58,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 21:07:58,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 21:07:58,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 21:07:58,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 21:07:58,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 21:07:58,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 21:07:58,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 21:07:58,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 21:07:58,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 21:07:58,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 21:07:58,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 21:07:58,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 21:07:58,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 21:07:58,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 21:07:58,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 21:07:58,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 21:07:58,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 21:07:58,432 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-02-18 21:07:58,457 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 21:07:58,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 21:07:58,458 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 21:07:58,458 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 21:07:58,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 21:07:58,459 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 21:07:58,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 21:07:58,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 21:07:58,460 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 21:07:58,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 21:07:58,461 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 21:07:58,461 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 21:07:58,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 21:07:58,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 21:07:58,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 21:07:58,461 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-18 21:07:58,461 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-18 21:07:58,462 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-18 21:07:58,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 21:07:58,463 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-18 21:07:58,463 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-18 21:07:58,465 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-18 21:07:58,465 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 21:07:58,466 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 21:07:58,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 21:07:58,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 21:07:58,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 21:07:58,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 21:07:58,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 21:07:58,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 21:07:58,468 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-18 21:07:58,475 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-18 21:07:58,475 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 21:07:58,476 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 21:07:58,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 21:07:58,476 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-18 21:07:58,476 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 21:07:58,476 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02acfb70bf31515ceb84abad2b1306b0eab86ac3ab86c4ec829443e87c9da071 [2023-02-18 21:07:58,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 21:07:58,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 21:07:58,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 21:07:58,738 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 21:07:58,738 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 21:07:58,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test11_1.i [2023-02-18 21:07:59,770 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 21:07:59,986 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 21:07:59,987 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test11_1.i [2023-02-18 21:08:00,000 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b23a70765/b0ad72e2a135493c8cc4c2a3e19ff26e/FLAGa04044b4b [2023-02-18 21:08:00,016 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b23a70765/b0ad72e2a135493c8cc4c2a3e19ff26e [2023-02-18 21:08:00,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 21:08:00,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 21:08:00,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 21:08:00,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 21:08:00,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 21:08:00,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:08:00" (1/1) ... [2023-02-18 21:08:00,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@628d111b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:08:00, skipping insertion in model container [2023-02-18 21:08:00,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:08:00" (1/1) ... [2023-02-18 21:08:00,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 21:08:00,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 21:08:00,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 21:08:00,372 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-02-18 21:08:00,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 21:08:00,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 21:08:00,428 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 21:08:00,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 21:08:00,516 INFO L208 MainTranslator]: Completed translation [2023-02-18 21:08:00,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:08:00 WrapperNode [2023-02-18 21:08:00,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 21:08:00,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 21:08:00,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 21:08:00,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 21:08:00,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:08:00" (1/1) ... [2023-02-18 21:08:00,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:08:00" (1/1) ... [2023-02-18 21:08:00,555 INFO L138 Inliner]: procedures = 169, calls = 88, calls flagged for inlining = 26, calls inlined = 8, statements flattened = 96 [2023-02-18 21:08:00,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 21:08:00,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 21:08:00,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 21:08:00,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 21:08:00,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:08:00" (1/1) ... [2023-02-18 21:08:00,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:08:00" (1/1) ... [2023-02-18 21:08:00,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:08:00" (1/1) ... [2023-02-18 21:08:00,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:08:00" (1/1) ... [2023-02-18 21:08:00,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:08:00" (1/1) ... [2023-02-18 21:08:00,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:08:00" (1/1) ... [2023-02-18 21:08:00,583 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:08:00" (1/1) ... [2023-02-18 21:08:00,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:08:00" (1/1) ... [2023-02-18 21:08:00,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 21:08:00,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 21:08:00,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 21:08:00,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 21:08:00,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:08:00" (1/1) ... [2023-02-18 21:08:00,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 21:08:00,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 21:08:00,624 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 21:08:00,640 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 21:08:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-02-18 21:08:00,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-02-18 21:08:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_i2c_set_clientdata [2023-02-18 21:08:00,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_i2c_set_clientdata [2023-02-18 21:08:00,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-18 21:08:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 21:08:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-18 21:08:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-18 21:08:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-18 21:08:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-02-18 21:08:00,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 21:08:00,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 21:08:00,799 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 21:08:00,800 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 21:08:01,097 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 21:08:01,102 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 21:08:01,102 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-18 21:08:01,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 09:08:01 BoogieIcfgContainer [2023-02-18 21:08:01,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 21:08:01,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 21:08:01,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 21:08:01,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 21:08:01,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 09:08:00" (1/3) ... [2023-02-18 21:08:01,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d47477b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 09:08:01, skipping insertion in model container [2023-02-18 21:08:01,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:08:00" (2/3) ... [2023-02-18 21:08:01,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d47477b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 09:08:01, skipping insertion in model container [2023-02-18 21:08:01,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 09:08:01" (3/3) ... [2023-02-18 21:08:01,114 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test11_1.i [2023-02-18 21:08:01,126 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 21:08:01,127 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-02-18 21:08:01,171 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 21:08:01,176 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;@270c1389, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 21:08:01,176 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-02-18 21:08:01,179 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 51 states have (on average 1.7058823529411764) internal successors, (87), 81 states have internal predecessors, (87), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-18 21:08:01,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 21:08:01,198 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:08:01,198 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:08:01,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2023-02-18 21:08:01,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:08:01,208 INFO L85 PathProgramCache]: Analyzing trace with hash 2113619829, now seen corresponding path program 1 times [2023-02-18 21:08:01,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:08:01,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772761051] [2023-02-18 21:08:01,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:01,217 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 21:08:01,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:08:01,263 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 21:08:01,264 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 21:08:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:01,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 21:08:01,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:01,387 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 21:08:01,387 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:08:01,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:08:01,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772761051] [2023-02-18 21:08:01,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772761051] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:08:01,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:08:01,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 21:08:01,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700469022] [2023-02-18 21:08:01,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:08:01,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 21:08:01,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:08:01,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 21:08:01,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:08:01,422 INFO L87 Difference]: Start difference. First operand has 90 states, 51 states have (on average 1.7058823529411764) internal successors, (87), 81 states have internal predecessors, (87), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 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 21:08:01,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:08:01,525 INFO L93 Difference]: Finished difference Result 167 states and 191 transitions. [2023-02-18 21:08:01,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 21:08:01,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 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 21:08:01,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:08:01,536 INFO L225 Difference]: With dead ends: 167 [2023-02-18 21:08:01,537 INFO L226 Difference]: Without dead ends: 163 [2023-02-18 21:08:01,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:08:01,541 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 73 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 21:08:01,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 478 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 21:08:01,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-02-18 21:08:01,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 92. [2023-02-18 21:08:01,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 53 states have (on average 1.6603773584905661) internal successors, (88), 82 states have internal predecessors, (88), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2023-02-18 21:08:01,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 104 transitions. [2023-02-18 21:08:01,578 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 104 transitions. Word has length 11 [2023-02-18 21:08:01,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:08:01,578 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 104 transitions. [2023-02-18 21:08:01,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 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 21:08:01,578 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 104 transitions. [2023-02-18 21:08:01,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 21:08:01,579 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:08:01,579 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:08:01,588 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 21:08:01,786 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 21:08:01,786 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2023-02-18 21:08:01,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:08:01,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1293843786, now seen corresponding path program 1 times [2023-02-18 21:08:01,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:08:01,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734070404] [2023-02-18 21:08:01,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:01,788 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 21:08:01,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:08:01,789 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 21:08:01,791 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 21:08:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:01,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 21:08:01,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:01,847 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 21:08:01,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:08:01,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:08:01,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734070404] [2023-02-18 21:08:01,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1734070404] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:08:01,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:08:01,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 21:08:01,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018119780] [2023-02-18 21:08:01,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:08:01,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 21:08:01,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:08:01,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 21:08:01,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 21:08:01,868 INFO L87 Difference]: Start difference. First operand 92 states and 104 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 21:08:02,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:08:02,053 INFO L93 Difference]: Finished difference Result 163 states and 186 transitions. [2023-02-18 21:08:02,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 21:08:02,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 21:08:02,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:08:02,055 INFO L225 Difference]: With dead ends: 163 [2023-02-18 21:08:02,055 INFO L226 Difference]: Without dead ends: 161 [2023-02-18 21:08:02,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 21:08:02,057 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 70 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 21:08:02,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 317 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 21:08:02,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-02-18 21:08:02,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 88. [2023-02-18 21:08:02,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 50 states have (on average 1.68) internal successors, (84), 79 states have internal predecessors, (84), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-18 21:08:02,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2023-02-18 21:08:02,068 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 11 [2023-02-18 21:08:02,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:08:02,068 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2023-02-18 21:08:02,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 21:08:02,069 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2023-02-18 21:08:02,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 21:08:02,070 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:08:02,070 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:08:02,086 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 21:08:02,281 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 21:08:02,281 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2023-02-18 21:08:02,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:08:02,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1793026591, now seen corresponding path program 1 times [2023-02-18 21:08:02,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:08:02,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619931856] [2023-02-18 21:08:02,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:02,285 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 21:08:02,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:08:02,286 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 21:08:02,289 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 21:08:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:02,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 21:08:02,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:02,340 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 21:08:02,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:08:02,340 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:08:02,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619931856] [2023-02-18 21:08:02,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619931856] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:08:02,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:08:02,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 21:08:02,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596206311] [2023-02-18 21:08:02,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:08:02,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 21:08:02,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:08:02,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 21:08:02,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:08:02,342 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 21:08:02,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:08:02,395 INFO L93 Difference]: Finished difference Result 160 states and 180 transitions. [2023-02-18 21:08:02,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 21:08:02,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 21:08:02,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:08:02,397 INFO L225 Difference]: With dead ends: 160 [2023-02-18 21:08:02,397 INFO L226 Difference]: Without dead ends: 160 [2023-02-18 21:08:02,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:08:02,398 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 68 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 21:08:02,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 369 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 21:08:02,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-02-18 21:08:02,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 92. [2023-02-18 21:08:02,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 53 states have (on average 1.6415094339622642) internal successors, (87), 82 states have internal predecessors, (87), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2023-02-18 21:08:02,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 103 transitions. [2023-02-18 21:08:02,404 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 103 transitions. Word has length 17 [2023-02-18 21:08:02,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:08:02,405 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 103 transitions. [2023-02-18 21:08:02,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 21:08:02,405 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 103 transitions. [2023-02-18 21:08:02,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 21:08:02,405 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:08:02,405 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:08:02,416 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 21:08:02,612 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 21:08:02,612 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2023-02-18 21:08:02,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:08:02,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1793026607, now seen corresponding path program 1 times [2023-02-18 21:08:02,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:08:02,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158726997] [2023-02-18 21:08:02,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:02,614 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 21:08:02,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:08:02,617 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 21:08:02,619 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 21:08:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:02,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-18 21:08:02,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:02,715 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 21:08:02,738 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (exists ((v_ArrVal_12 (_ BitVec 1))) (= |c_#valid| (store |c_old(#valid)| |ldv_malloc_#res.base| v_ArrVal_12))) (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)))) is different from true [2023-02-18 21:08:02,747 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:02,748 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 21:08:02,755 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-02-18 21:08:02,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:08:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:08:02,818 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:08:02,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158726997] [2023-02-18 21:08:02,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [158726997] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 21:08:02,818 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:08:02,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2023-02-18 21:08:02,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882335265] [2023-02-18 21:08:02,819 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:08:02,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-18 21:08:02,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:08:02,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-18 21:08:02,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=31, Unknown=1, NotChecked=10, Total=56 [2023-02-18 21:08:02,820 INFO L87 Difference]: Start difference. First operand 92 states and 103 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:08:03,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:08:03,048 INFO L93 Difference]: Finished difference Result 133 states and 148 transitions. [2023-02-18 21:08:03,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 21:08:03,049 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2023-02-18 21:08:03,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:08:03,050 INFO L225 Difference]: With dead ends: 133 [2023-02-18 21:08:03,050 INFO L226 Difference]: Without dead ends: 133 [2023-02-18 21:08:03,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=41, Unknown=1, NotChecked=12, Total=72 [2023-02-18 21:08:03,050 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 74 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 101 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 21:08:03,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 226 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 235 Invalid, 0 Unknown, 101 Unchecked, 0.2s Time] [2023-02-18 21:08:03,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-02-18 21:08:03,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 103. [2023-02-18 21:08:03,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 63 states have (on average 1.6031746031746033) internal successors, (101), 90 states have internal predecessors, (101), 7 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (12), 10 states have call predecessors, (12), 7 states have call successors, (12) [2023-02-18 21:08:03,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 120 transitions. [2023-02-18 21:08:03,060 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 120 transitions. Word has length 17 [2023-02-18 21:08:03,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:08:03,061 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 120 transitions. [2023-02-18 21:08:03,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:08:03,064 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 120 transitions. [2023-02-18 21:08:03,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 21:08:03,065 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:08:03,065 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:08:03,079 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 21:08:03,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:08:03,279 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2023-02-18 21:08:03,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:08:03,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1793026606, now seen corresponding path program 1 times [2023-02-18 21:08:03,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:08:03,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674630198] [2023-02-18 21:08:03,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:03,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:08:03,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:08:03,283 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 21:08:03,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-02-18 21:08:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:03,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-18 21:08:03,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:03,357 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 21:08:03,360 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 21:08:03,411 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)) (exists ((v_ArrVal_23 (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |ldv_malloc_#res.base| v_ArrVal_23))))) is different from true [2023-02-18 21:08:03,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 21:08:03,427 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 21:08:03,431 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:03,431 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 21:08:03,442 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-02-18 21:08:03,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:08:03,531 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:08:03,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1674630198] [2023-02-18 21:08:03,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1674630198] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 21:08:03,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [488242041] [2023-02-18 21:08:03,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:03,531 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-02-18 21:08:03,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-02-18 21:08:03,534 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-02-18 21:08:03,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-02-18 21:08:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:03,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-18 21:08:03,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:03,619 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 21:08:03,622 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 21:08:03,631 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (exists ((v_ArrVal_33 (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |ldv_malloc_#res.base| v_ArrVal_33))) (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)))) is different from true [2023-02-18 21:08:03,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 21:08:03,644 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 21:08:03,647 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:03,647 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 21:08:03,649 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-02-18 21:08:03,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:08:03,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [488242041] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 21:08:03,707 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:08:03,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2023-02-18 21:08:03,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437177451] [2023-02-18 21:08:03,707 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:08:03,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-18 21:08:03,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:08:03,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-18 21:08:03,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=71, Unknown=2, NotChecked=34, Total=132 [2023-02-18 21:08:03,708 INFO L87 Difference]: Start difference. First operand 103 states and 120 transitions. Second operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:08:04,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:08:04,205 INFO L93 Difference]: Finished difference Result 226 states and 255 transitions. [2023-02-18 21:08:04,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 21:08:04,206 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2023-02-18 21:08:04,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:08:04,207 INFO L225 Difference]: With dead ends: 226 [2023-02-18 21:08:04,207 INFO L226 Difference]: Without dead ends: 226 [2023-02-18 21:08:04,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=105, Unknown=2, NotChecked=42, Total=182 [2023-02-18 21:08:04,208 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 145 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 423 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-18 21:08:04,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 473 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 530 Invalid, 0 Unknown, 423 Unchecked, 0.5s Time] [2023-02-18 21:08:04,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-02-18 21:08:04,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 148. [2023-02-18 21:08:04,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 103 states have (on average 1.6601941747572815) internal successors, (171), 130 states have internal predecessors, (171), 12 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (20), 15 states have call predecessors, (20), 12 states have call successors, (20) [2023-02-18 21:08:04,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 203 transitions. [2023-02-18 21:08:04,220 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 203 transitions. Word has length 17 [2023-02-18 21:08:04,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:08:04,220 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 203 transitions. [2023-02-18 21:08:04,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:08:04,220 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 203 transitions. [2023-02-18 21:08:04,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 21:08:04,220 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:08:04,221 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:08:04,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-02-18 21:08:04,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-02-18 21:08:04,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 21:08:04,623 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2023-02-18 21:08:04,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:08:04,623 INFO L85 PathProgramCache]: Analyzing trace with hash -2086429614, now seen corresponding path program 1 times [2023-02-18 21:08:04,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:08:04,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369521178] [2023-02-18 21:08:04,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:04,624 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 21:08:04,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:08:04,625 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 21:08:04,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-02-18 21:08:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:04,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 21:08:04,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:04,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:08:04,672 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:08:04,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:08:04,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369521178] [2023-02-18 21:08:04,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369521178] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:08:04,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:08:04,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 21:08:04,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204609316] [2023-02-18 21:08:04,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:08:04,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 21:08:04,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:08:04,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 21:08:04,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:08:04,674 INFO L87 Difference]: Start difference. First operand 148 states and 203 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 21:08:04,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:08:04,698 INFO L93 Difference]: Finished difference Result 130 states and 170 transitions. [2023-02-18 21:08:04,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 21:08:04,699 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2023-02-18 21:08:04,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:08:04,699 INFO L225 Difference]: With dead ends: 130 [2023-02-18 21:08:04,699 INFO L226 Difference]: Without dead ends: 128 [2023-02-18 21:08:04,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:08:04,700 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 0 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 21:08:04,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 374 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 21:08:04,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-02-18 21:08:04,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2023-02-18 21:08:04,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 88 states have (on average 1.6590909090909092) internal successors, (146), 114 states have internal predecessors, (146), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (13), 11 states have call predecessors, (13), 9 states have call successors, (13) [2023-02-18 21:08:04,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 168 transitions. [2023-02-18 21:08:04,705 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 168 transitions. Word has length 17 [2023-02-18 21:08:04,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:08:04,705 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 168 transitions. [2023-02-18 21:08:04,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 21:08:04,705 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 168 transitions. [2023-02-18 21:08:04,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-18 21:08:04,706 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:08:04,706 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:08:04,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-02-18 21:08:04,916 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 21:08:04,917 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2023-02-18 21:08:04,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:08:04,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1138254343, now seen corresponding path program 1 times [2023-02-18 21:08:04,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:08:04,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718914387] [2023-02-18 21:08:04,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:04,917 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 21:08:04,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:08:04,919 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 21:08:04,920 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 21:08:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:04,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 21:08:04,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:05,033 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:08:05,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:08:05,061 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 21:08:05,061 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:08:05,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718914387] [2023-02-18 21:08:05,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718914387] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 21:08:05,061 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:08:05,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 9 [2023-02-18 21:08:05,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036486841] [2023-02-18 21:08:05,062 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:08:05,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-18 21:08:05,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:08:05,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-18 21:08:05,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-02-18 21:08:05,063 INFO L87 Difference]: Start difference. First operand 128 states and 168 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:08:05,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:08:05,230 INFO L93 Difference]: Finished difference Result 131 states and 170 transitions. [2023-02-18 21:08:05,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-18 21:08:05,230 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 18 [2023-02-18 21:08:05,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:08:05,231 INFO L225 Difference]: With dead ends: 131 [2023-02-18 21:08:05,231 INFO L226 Difference]: Without dead ends: 129 [2023-02-18 21:08:05,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-02-18 21:08:05,232 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 201 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 21:08:05,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 337 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 21:08:05,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-02-18 21:08:05,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2023-02-18 21:08:05,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 90 states have (on average 1.6222222222222222) internal successors, (146), 114 states have internal predecessors, (146), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (13), 11 states have call predecessors, (13), 9 states have call successors, (13) [2023-02-18 21:08:05,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 168 transitions. [2023-02-18 21:08:05,236 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 168 transitions. Word has length 18 [2023-02-18 21:08:05,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:08:05,236 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 168 transitions. [2023-02-18 21:08:05,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:08:05,237 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 168 transitions. [2023-02-18 21:08:05,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-18 21:08:05,237 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:08:05,237 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:08:05,248 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 21:08:05,447 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 21:08:05,447 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2023-02-18 21:08:05,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:08:05,448 INFO L85 PathProgramCache]: Analyzing trace with hash 968466533, now seen corresponding path program 1 times [2023-02-18 21:08:05,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:08:05,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084478371] [2023-02-18 21:08:05,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:05,448 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 21:08:05,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:08:05,449 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 21:08:05,450 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 21:08:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:05,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 21:08:05,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:05,535 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_entry_point_~c11~0#1.base| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~c11~0#1.base| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~c11~0#1.base|)))) is different from true [2023-02-18 21:08:05,537 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 21:08:05,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:08:05,570 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_entry_point_#t~ret43#1.base_18| (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_entry_point_#t~ret43#1.base_18|))) (= |c_ULTIMATE.start_main_old_#valid#1| (store |c_#valid| |v_ULTIMATE.start_entry_point_#t~ret43#1.base_18| (_ bv0 1))))) is different from false [2023-02-18 21:08:05,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:08:05,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084478371] [2023-02-18 21:08:05,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084478371] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 21:08:05,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1515170478] [2023-02-18 21:08:05,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:05,572 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-02-18 21:08:05,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-02-18 21:08:05,573 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-02-18 21:08:05,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-02-18 21:08:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:05,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-18 21:08:05,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:05,710 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 21:08:05,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:08:05,724 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_entry_point_#t~ret43#1.base_21| (_ BitVec 32))) (or (= |c_ULTIMATE.start_main_old_#valid#1| (store |c_#valid| |v_ULTIMATE.start_entry_point_#t~ret43#1.base_21| (_ bv0 1))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_entry_point_#t~ret43#1.base_21|))))) is different from false [2023-02-18 21:08:05,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1515170478] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 21:08:05,726 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:08:05,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2023-02-18 21:08:05,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485662] [2023-02-18 21:08:05,726 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:08:05,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 21:08:05,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:08:05,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 21:08:05,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=126, Unknown=3, NotChecked=72, Total=240 [2023-02-18 21:08:05,727 INFO L87 Difference]: Start difference. First operand 129 states and 168 transitions. Second operand has 12 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:08:06,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:08:06,220 INFO L93 Difference]: Finished difference Result 189 states and 236 transitions. [2023-02-18 21:08:06,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 21:08:06,221 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 21 [2023-02-18 21:08:06,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:08:06,222 INFO L225 Difference]: With dead ends: 189 [2023-02-18 21:08:06,222 INFO L226 Difference]: Without dead ends: 184 [2023-02-18 21:08:06,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 50 SyntacticMatches, 6 SemanticMatches, 20 ConstructedPredicates, 3 IntricatePredicates, 2 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=276, Unknown=3, NotChecked=108, Total=462 [2023-02-18 21:08:06,223 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 143 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 167 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-18 21:08:06,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 514 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 471 Invalid, 0 Unknown, 167 Unchecked, 0.5s Time] [2023-02-18 21:08:06,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-02-18 21:08:06,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 124. [2023-02-18 21:08:06,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 85 states have (on average 1.6470588235294117) internal successors, (140), 110 states have internal predecessors, (140), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (13), 10 states have call predecessors, (13), 9 states have call successors, (13) [2023-02-18 21:08:06,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 162 transitions. [2023-02-18 21:08:06,227 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 162 transitions. Word has length 21 [2023-02-18 21:08:06,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:08:06,228 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 162 transitions. [2023-02-18 21:08:06,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 21:08:06,228 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 162 transitions. [2023-02-18 21:08:06,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-18 21:08:06,228 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:08:06,228 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:08:06,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-02-18 21:08:06,436 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 (10)] Forceful destruction successful, exit code 0 [2023-02-18 21:08:06,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 21:08:06,631 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2023-02-18 21:08:06,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:08:06,631 INFO L85 PathProgramCache]: Analyzing trace with hash -406257806, now seen corresponding path program 1 times [2023-02-18 21:08:06,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:08:06,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860340261] [2023-02-18 21:08:06,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:06,631 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 21:08:06,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:08:06,632 INFO L229 MonitoredProcess]: Starting monitored process 12 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 21:08:06,634 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 (12)] Waiting until timeout for monitored process [2023-02-18 21:08:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:06,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-18 21:08:06,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:06,695 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 21:08:06,713 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (= |c_#valid| (store |c_old(#valid)| |ldv_malloc_#res.base| (_ bv1 1)))) is different from true [2023-02-18 21:08:06,715 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:06,715 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 21:08:06,722 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2023-02-18 21:08:06,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:08:06,756 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 21:08:06,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:08:06,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1860340261] [2023-02-18 21:08:06,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1860340261] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 21:08:06,756 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:08:06,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2023-02-18 21:08:06,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257252389] [2023-02-18 21:08:06,756 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:08:06,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-18 21:08:06,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:08:06,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-18 21:08:06,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=31, Unknown=1, NotChecked=10, Total=56 [2023-02-18 21:08:06,757 INFO L87 Difference]: Start difference. First operand 124 states and 162 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 21:08:06,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:08:06,970 INFO L93 Difference]: Finished difference Result 174 states and 227 transitions. [2023-02-18 21:08:06,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 21:08:06,970 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 25 [2023-02-18 21:08:06,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:08:06,971 INFO L225 Difference]: With dead ends: 174 [2023-02-18 21:08:06,971 INFO L226 Difference]: Without dead ends: 174 [2023-02-18 21:08:06,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=41, Unknown=1, NotChecked=12, Total=72 [2023-02-18 21:08:06,972 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 55 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 110 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 21:08:06,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 327 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 268 Invalid, 0 Unknown, 110 Unchecked, 0.2s Time] [2023-02-18 21:08:06,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-02-18 21:08:06,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 137. [2023-02-18 21:08:06,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 97 states have (on average 1.6288659793814433) internal successors, (158), 120 states have internal predecessors, (158), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (15), 13 states have call predecessors, (15), 10 states have call successors, (15) [2023-02-18 21:08:06,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 183 transitions. [2023-02-18 21:08:06,976 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 183 transitions. Word has length 25 [2023-02-18 21:08:06,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:08:06,976 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 183 transitions. [2023-02-18 21:08:06,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 21:08:06,977 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 183 transitions. [2023-02-18 21:08:06,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-18 21:08:06,977 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:08:06,977 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:08:06,987 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 (12)] Forceful destruction successful, exit code 0 [2023-02-18 21:08:07,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /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 21:08:07,178 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2023-02-18 21:08:07,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:08:07,178 INFO L85 PathProgramCache]: Analyzing trace with hash -406257805, now seen corresponding path program 1 times [2023-02-18 21:08:07,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:08:07,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288437827] [2023-02-18 21:08:07,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:07,179 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 21:08:07,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:08:07,180 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 21:08:07,183 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 21:08:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:07,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-18 21:08:07,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:07,251 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 21:08:07,275 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |ldv_malloc_#res.base| |c_ldv_malloc_#in~size|))) is different from true [2023-02-18 21:08:07,278 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:07,278 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 21:08:07,302 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-02-18 21:08:07,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:08:07,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:08:07,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288437827] [2023-02-18 21:08:07,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288437827] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 21:08:07,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [47650155] [2023-02-18 21:08:07,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:07,391 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-02-18 21:08:07,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-02-18 21:08:07,405 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-02-18 21:08:07,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-02-18 21:08:07,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:07,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-18 21:08:07,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:07,551 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 21:08:07,553 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 21:08:07,606 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (exists ((v_ArrVal_102 (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |ldv_malloc_#res.base| v_ArrVal_102))) (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)))) is different from true [2023-02-18 21:08:07,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 21:08:07,612 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 21:08:07,615 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:07,615 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 21:08:07,616 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-02-18 21:08:07,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:08:11,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [47650155] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 21:08:11,677 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:08:11,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2023-02-18 21:08:11,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330391859] [2023-02-18 21:08:11,677 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:08:11,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-18 21:08:11,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:08:11,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-18 21:08:11,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=171, Unknown=4, NotChecked=54, Total=272 [2023-02-18 21:08:11,678 INFO L87 Difference]: Start difference. First operand 137 states and 183 transitions. Second operand has 14 states, 13 states have (on average 2.076923076923077) internal successors, (27), 11 states have internal predecessors, (27), 3 states have call successors, (4), 3 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 21:08:12,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:08:12,451 INFO L93 Difference]: Finished difference Result 266 states and 343 transitions. [2023-02-18 21:08:12,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 21:08:12,451 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.076923076923077) internal successors, (27), 11 states have internal predecessors, (27), 3 states have call successors, (4), 3 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 25 [2023-02-18 21:08:12,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:08:12,453 INFO L225 Difference]: With dead ends: 266 [2023-02-18 21:08:12,453 INFO L226 Difference]: Without dead ends: 266 [2023-02-18 21:08:12,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=54, Invalid=222, Unknown=4, NotChecked=62, Total=342 [2023-02-18 21:08:12,453 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 146 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 346 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-18 21:08:12,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1008 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 776 Invalid, 0 Unknown, 346 Unchecked, 0.7s Time] [2023-02-18 21:08:12,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-02-18 21:08:12,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 195. [2023-02-18 21:08:12,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 149 states have (on average 1.6442953020134228) internal successors, (245), 172 states have internal predecessors, (245), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (23), 19 states have call predecessors, (23), 16 states have call successors, (23) [2023-02-18 21:08:12,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 284 transitions. [2023-02-18 21:08:12,458 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 284 transitions. Word has length 25 [2023-02-18 21:08:12,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:08:12,459 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 284 transitions. [2023-02-18 21:08:12,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.076923076923077) internal successors, (27), 11 states have internal predecessors, (27), 3 states have call successors, (4), 3 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 21:08:12,459 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 284 transitions. [2023-02-18 21:08:12,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-18 21:08:12,460 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:08:12,460 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:08:12,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-02-18 21:08:12,668 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 21:08:12,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 21:08:12,862 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2023-02-18 21:08:12,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:08:12,863 INFO L85 PathProgramCache]: Analyzing trace with hash -911816431, now seen corresponding path program 1 times [2023-02-18 21:08:12,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:08:12,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41330387] [2023-02-18 21:08:12,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:12,863 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 21:08:12,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:08:12,864 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 21:08:12,865 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 21:08:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:12,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 21:08:12,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:12,922 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 21:08:12,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:08:12,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:08:12,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41330387] [2023-02-18 21:08:12,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41330387] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:08:12,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:08:12,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 21:08:12,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510488568] [2023-02-18 21:08:12,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:08:12,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 21:08:12,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:08:12,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 21:08:12,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:08:12,924 INFO L87 Difference]: Start difference. First operand 195 states and 284 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:08:12,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:08:12,945 INFO L93 Difference]: Finished difference Result 126 states and 161 transitions. [2023-02-18 21:08:12,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 21:08:12,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2023-02-18 21:08:12,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:08:12,947 INFO L225 Difference]: With dead ends: 126 [2023-02-18 21:08:12,947 INFO L226 Difference]: Without dead ends: 124 [2023-02-18 21:08:12,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:08:12,948 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 0 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 21:08:12,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 348 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 21:08:12,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-02-18 21:08:12,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2023-02-18 21:08:12,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 88 states have (on average 1.5681818181818181) internal successors, (138), 110 states have internal predecessors, (138), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) [2023-02-18 21:08:12,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 159 transitions. [2023-02-18 21:08:12,951 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 159 transitions. Word has length 25 [2023-02-18 21:08:12,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:08:12,951 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 159 transitions. [2023-02-18 21:08:12,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:08:12,952 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 159 transitions. [2023-02-18 21:08:12,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-18 21:08:12,956 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:08:12,956 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] [2023-02-18 21:08:12,964 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 21:08:13,164 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 21:08:13,165 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2023-02-18 21:08:13,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:08:13,165 INFO L85 PathProgramCache]: Analyzing trace with hash 290909999, now seen corresponding path program 1 times [2023-02-18 21:08:13,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:08:13,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611217952] [2023-02-18 21:08:13,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:13,166 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 21:08:13,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:08:13,167 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 21:08:13,167 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 21:08:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:13,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 21:08:13,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:13,224 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-18 21:08:13,225 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:08:13,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:08:13,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611217952] [2023-02-18 21:08:13,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611217952] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:08:13,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:08:13,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 21:08:13,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403803610] [2023-02-18 21:08:13,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:08:13,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 21:08:13,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:08:13,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 21:08:13,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:08:13,227 INFO L87 Difference]: Start difference. First operand 124 states and 159 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 21:08:13,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:08:13,259 INFO L93 Difference]: Finished difference Result 174 states and 208 transitions. [2023-02-18 21:08:13,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 21:08:13,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 26 [2023-02-18 21:08:13,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:08:13,261 INFO L225 Difference]: With dead ends: 174 [2023-02-18 21:08:13,261 INFO L226 Difference]: Without dead ends: 174 [2023-02-18 21:08:13,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 21:08:13,261 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 57 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 21:08:13,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 428 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 21:08:13,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-02-18 21:08:13,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 124. [2023-02-18 21:08:13,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 88 states have (on average 1.5568181818181819) internal successors, (137), 110 states have internal predecessors, (137), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) [2023-02-18 21:08:13,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 158 transitions. [2023-02-18 21:08:13,266 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 158 transitions. Word has length 26 [2023-02-18 21:08:13,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:08:13,266 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 158 transitions. [2023-02-18 21:08:13,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 21:08:13,266 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 158 transitions. [2023-02-18 21:08:13,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-18 21:08:13,267 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:08:13,267 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 21:08:13,273 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 21:08:13,473 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 21:08:13,473 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2023-02-18 21:08:13,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:08:13,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1178413680, now seen corresponding path program 1 times [2023-02-18 21:08:13,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:08:13,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851857167] [2023-02-18 21:08:13,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:13,474 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 21:08:13,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:08:13,475 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 21:08:13,475 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 21:08:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:13,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 21:08:13,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:13,592 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 21:08:13,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:08:13,619 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-18 21:08:13,619 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:08:13,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851857167] [2023-02-18 21:08:13,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851857167] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 21:08:13,620 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:08:13,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 9 [2023-02-18 21:08:13,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314947150] [2023-02-18 21:08:13,620 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:08:13,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-18 21:08:13,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:08:13,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-18 21:08:13,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-02-18 21:08:13,621 INFO L87 Difference]: Start difference. First operand 124 states and 158 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 5 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2023-02-18 21:08:13,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:08:13,823 INFO L93 Difference]: Finished difference Result 123 states and 155 transitions. [2023-02-18 21:08:13,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 21:08:13,824 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 5 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 26 [2023-02-18 21:08:13,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:08:13,824 INFO L225 Difference]: With dead ends: 123 [2023-02-18 21:08:13,824 INFO L226 Difference]: Without dead ends: 123 [2023-02-18 21:08:13,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-02-18 21:08:13,825 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 180 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 21:08:13,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 322 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 21:08:13,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-02-18 21:08:13,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2023-02-18 21:08:13,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 88 states have (on average 1.5227272727272727) internal successors, (134), 109 states have internal predecessors, (134), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) [2023-02-18 21:08:13,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 155 transitions. [2023-02-18 21:08:13,828 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 155 transitions. Word has length 26 [2023-02-18 21:08:13,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:08:13,828 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 155 transitions. [2023-02-18 21:08:13,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 5 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2023-02-18 21:08:13,828 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 155 transitions. [2023-02-18 21:08:13,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-18 21:08:13,828 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:08:13,829 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 21:08:13,837 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 (17)] Forceful destruction successful, exit code 0 [2023-02-18 21:08:14,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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 21:08:14,035 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2023-02-18 21:08:14,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:08:14,036 INFO L85 PathProgramCache]: Analyzing trace with hash 428272563, now seen corresponding path program 1 times [2023-02-18 21:08:14,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:08:14,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362979530] [2023-02-18 21:08:14,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:14,036 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 21:08:14,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:08:14,037 INFO L229 MonitoredProcess]: Starting monitored process 18 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 21:08:14,040 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 (18)] Waiting until timeout for monitored process [2023-02-18 21:08:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:14,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 21:08:14,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:14,103 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 21:08:14,109 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (= |c_#valid| (store |c_old(#valid)| |ldv_malloc_#res.base| (_ bv1 1)))) is different from true [2023-02-18 21:08:14,111 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:14,112 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 21:08:14,119 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 21:08:14,119 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 21:08:14,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:08:14,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362979530] [2023-02-18 21:08:14,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362979530] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 21:08:14,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 21:08:14,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 21:08:14,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368214234] [2023-02-18 21:08:14,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 21:08:14,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 21:08:14,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:08:14,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 21:08:14,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2023-02-18 21:08:14,121 INFO L87 Difference]: Start difference. First operand 123 states and 155 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:08:14,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:08:14,263 INFO L93 Difference]: Finished difference Result 157 states and 192 transitions. [2023-02-18 21:08:14,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 21:08:14,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2023-02-18 21:08:14,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:08:14,264 INFO L225 Difference]: With dead ends: 157 [2023-02-18 21:08:14,264 INFO L226 Difference]: Without dead ends: 157 [2023-02-18 21:08:14,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=20, Unknown=1, NotChecked=8, Total=42 [2023-02-18 21:08:14,265 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 90 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 139 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 21:08:14,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 234 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 142 Invalid, 0 Unknown, 139 Unchecked, 0.1s Time] [2023-02-18 21:08:14,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-02-18 21:08:14,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 122. [2023-02-18 21:08:14,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 88 states have (on average 1.5) internal successors, (132), 108 states have internal predecessors, (132), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) [2023-02-18 21:08:14,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 153 transitions. [2023-02-18 21:08:14,268 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 153 transitions. Word has length 27 [2023-02-18 21:08:14,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:08:14,268 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 153 transitions. [2023-02-18 21:08:14,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 21:08:14,268 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 153 transitions. [2023-02-18 21:08:14,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-18 21:08:14,268 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:08:14,268 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 21:08:14,277 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 (18)] Forceful destruction successful, exit code 0 [2023-02-18 21:08:14,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 21:08:14,475 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2023-02-18 21:08:14,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:08:14,476 INFO L85 PathProgramCache]: Analyzing trace with hash 428272564, now seen corresponding path program 1 times [2023-02-18 21:08:14,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:08:14,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280420220] [2023-02-18 21:08:14,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:14,476 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 21:08:14,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:08:14,478 INFO L229 MonitoredProcess]: Starting monitored process 19 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 21:08:14,480 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 (19)] Waiting until timeout for monitored process [2023-02-18 21:08:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:14,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 29 conjunts are in the unsatisfiable core [2023-02-18 21:08:14,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:14,549 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 21:08:14,550 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 21:08:14,573 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)) (exists ((v_ArrVal_178 (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |ldv_malloc_#res.base| v_ArrVal_178))))) is different from true [2023-02-18 21:08:14,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 21:08:14,581 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 21:08:14,584 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:14,587 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 21:08:14,615 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (exists ((v_ArrVal_179 (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |ldv_malloc_#res.base| v_ArrVal_179))) (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)))) is different from true [2023-02-18 21:08:14,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 21:08:14,624 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 21:08:14,634 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:14,635 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 21:08:14,645 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 6 not checked. [2023-02-18 21:08:14,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:08:14,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:08:14,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280420220] [2023-02-18 21:08:14,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280420220] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 21:08:14,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [477473770] [2023-02-18 21:08:14,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:14,738 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-02-18 21:08:14,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-02-18 21:08:14,739 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-02-18 21:08:14,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-02-18 21:08:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:14,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 31 conjunts are in the unsatisfiable core [2023-02-18 21:08:14,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:14,858 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 21:08:14,861 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 21:08:14,886 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:14,886 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 21:08:14,890 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:14,890 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 21:08:14,924 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (exists ((v_ArrVal_204 (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |ldv_malloc_#res.base| v_ArrVal_204))) (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)))) is different from true [2023-02-18 21:08:14,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 21:08:14,930 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 21:08:14,932 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:14,933 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 21:08:14,934 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 4 not checked. [2023-02-18 21:08:14,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:08:14,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [477473770] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 21:08:14,998 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:08:14,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 13 [2023-02-18 21:08:15,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056976262] [2023-02-18 21:08:15,000 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:08:15,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-18 21:08:15,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:08:15,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-18 21:08:15,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=153, Unknown=3, NotChecked=78, Total=272 [2023-02-18 21:08:15,002 INFO L87 Difference]: Start difference. First operand 122 states and 153 transitions. Second operand has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-18 21:08:15,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:08:15,845 INFO L93 Difference]: Finished difference Result 224 states and 244 transitions. [2023-02-18 21:08:15,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-18 21:08:15,846 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 27 [2023-02-18 21:08:15,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:08:15,847 INFO L225 Difference]: With dead ends: 224 [2023-02-18 21:08:15,847 INFO L226 Difference]: Without dead ends: 224 [2023-02-18 21:08:15,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 46 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=253, Unknown=3, NotChecked=102, Total=420 [2023-02-18 21:08:15,847 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 167 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 18 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 606 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-18 21:08:15,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1017 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 773 Invalid, 18 Unknown, 606 Unchecked, 0.8s Time] [2023-02-18 21:08:15,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-02-18 21:08:15,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 121. [2023-02-18 21:08:15,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 88 states have (on average 1.4772727272727273) internal successors, (130), 107 states have internal predecessors, (130), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) [2023-02-18 21:08:15,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 151 transitions. [2023-02-18 21:08:15,858 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 151 transitions. Word has length 27 [2023-02-18 21:08:15,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:08:15,858 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 151 transitions. [2023-02-18 21:08:15,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-18 21:08:15,858 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 151 transitions. [2023-02-18 21:08:15,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-18 21:08:15,859 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:08:15,859 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 21:08:15,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2023-02-18 21:08:16,079 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 (19)] Ended with exit code 0 [2023-02-18 21:08:16,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,19 /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 21:08:16,272 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2023-02-18 21:08:16,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:08:16,273 INFO L85 PathProgramCache]: Analyzing trace with hash -746927052, now seen corresponding path program 1 times [2023-02-18 21:08:16,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:08:16,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60130054] [2023-02-18 21:08:16,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:16,273 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 21:08:16,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:08:16,274 INFO L229 MonitoredProcess]: Starting monitored process 21 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 21:08:16,275 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 (21)] Waiting until timeout for monitored process [2023-02-18 21:08:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:16,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 29 conjunts are in the unsatisfiable core [2023-02-18 21:08:16,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:16,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-18 21:08:16,377 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 21:08:16,409 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:16,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 39 [2023-02-18 21:08:16,446 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:16,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 46 [2023-02-18 21:08:16,492 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-18 21:08:16,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:08:16,603 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:16,604 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 65 treesize of output 69 [2023-02-18 21:08:16,665 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:08:16,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [60130054] [2023-02-18 21:08:16,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [60130054] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 21:08:16,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2094623426] [2023-02-18 21:08:16,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:16,665 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-02-18 21:08:16,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-02-18 21:08:16,666 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-02-18 21:08:16,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-02-18 21:08:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:16,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-18 21:08:16,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:16,780 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 21:08:16,891 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:16,891 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 21:08:16,951 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 11 treesize of output 7 [2023-02-18 21:08:18,990 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_entry_point_~c11~0#1.base_BEFORE_CALL_18| (_ BitVec 32))) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_entry_point_~c11~0#1.base_BEFORE_CALL_18|) (_ bv0 32)) |v_ULTIMATE.start_entry_point_~c11~0#1.base_BEFORE_CALL_18|))) is different from true [2023-02-18 21:08:19,042 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:19,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 43 [2023-02-18 21:08:19,046 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 25 [2023-02-18 21:08:19,112 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:19,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 42 [2023-02-18 21:08:19,115 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 13 treesize of output 9 [2023-02-18 21:08:19,116 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2023-02-18 21:08:19,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:08:19,120 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:19,120 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 19 treesize of output 23 [2023-02-18 21:08:19,123 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_253 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_entry_point_~cfg~1#1.base| v_ArrVal_253) |c_ULTIMATE.start_entry_point_~c11~0#1.base|) |c_ULTIMATE.start_entry_point_~c11~0#1.offset|) |c_ULTIMATE.start_entry_point_~cfg~1#1.base|)) is different from false [2023-02-18 21:08:19,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2094623426] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 21:08:19,126 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 21:08:19,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2023-02-18 21:08:19,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880201211] [2023-02-18 21:08:19,126 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 21:08:19,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-02-18 21:08:19,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 21:08:19,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-02-18 21:08:19,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=897, Unknown=2, NotChecked=122, Total=1122 [2023-02-18 21:08:19,128 INFO L87 Difference]: Start difference. First operand 121 states and 151 transitions. Second operand has 28 states, 26 states have (on average 1.5) internal successors, (39), 23 states have internal predecessors, (39), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2023-02-18 21:08:26,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 21:08:26,785 INFO L93 Difference]: Finished difference Result 200 states and 235 transitions. [2023-02-18 21:08:26,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-02-18 21:08:26,785 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 1.5) internal successors, (39), 23 states have internal predecessors, (39), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) Word has length 29 [2023-02-18 21:08:26,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 21:08:26,786 INFO L225 Difference]: With dead ends: 200 [2023-02-18 21:08:26,786 INFO L226 Difference]: Without dead ends: 200 [2023-02-18 21:08:26,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 2 IntricatePredicates, 2 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=374, Invalid=2281, Unknown=5, NotChecked=202, Total=2862 [2023-02-18 21:08:26,787 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 357 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 1564 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 179 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-02-18 21:08:26,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1733 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1564 Invalid, 0 Unknown, 179 Unchecked, 1.3s Time] [2023-02-18 21:08:26,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-02-18 21:08:26,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 93. [2023-02-18 21:08:26,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 64 states have (on average 1.359375) internal successors, (87), 81 states have internal predecessors, (87), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (8), 7 states have call predecessors, (8), 6 states have call successors, (8) [2023-02-18 21:08:26,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 101 transitions. [2023-02-18 21:08:26,790 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 101 transitions. Word has length 29 [2023-02-18 21:08:26,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 21:08:26,791 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 101 transitions. [2023-02-18 21:08:26,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 1.5) internal successors, (39), 23 states have internal predecessors, (39), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2023-02-18 21:08:26,791 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 101 transitions. [2023-02-18 21:08:26,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-18 21:08:26,791 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 21:08:26,791 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 21:08:26,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2023-02-18 21:08:27,000 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 (21)] Ended with exit code 0 [2023-02-18 21:08:27,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,21 /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 21:08:27,194 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 27 more)] === [2023-02-18 21:08:27,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 21:08:27,194 INFO L85 PathProgramCache]: Analyzing trace with hash -746927051, now seen corresponding path program 1 times [2023-02-18 21:08:27,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 21:08:27,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148030441] [2023-02-18 21:08:27,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:27,195 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 21:08:27,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 21:08:27,196 INFO L229 MonitoredProcess]: Starting monitored process 23 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 21:08:27,197 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 (23)] Waiting until timeout for monitored process [2023-02-18 21:08:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:27,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 30 conjunts are in the unsatisfiable core [2023-02-18 21:08:27,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:27,273 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 21:08:27,291 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:27,291 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 21:08:27,311 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 11 treesize of output 7 [2023-02-18 21:08:27,314 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 11 treesize of output 7 [2023-02-18 21:08:27,384 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:27,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 57 [2023-02-18 21:08:27,389 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 29 treesize of output 29 [2023-02-18 21:08:27,392 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 41 treesize of output 31 [2023-02-18 21:08:27,438 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:27,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 48 [2023-02-18 21:08:27,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 28 treesize of output 16 [2023-02-18 21:08:27,447 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 15 treesize of output 11 [2023-02-18 21:08:27,476 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 21:08:27,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 21:08:27,678 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:27,678 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 60 treesize of output 64 [2023-02-18 21:08:27,713 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_prenex_11 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_entry_point_~cfg~1#1.base| v_prenex_11) |c_ULTIMATE.start_entry_point_~c11~0#1.base|) |c_ULTIMATE.start_entry_point_~c11~0#1.offset|))) (bvule .cse2 (bvadd (_ bv4 32) .cse2))))) (.cse1 (forall ((v_prenex_12 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (_ bv0 32) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_entry_point_~cfg~1#1.base| v_prenex_12) |c_ULTIMATE.start_entry_point_~c11~0#1.base|) |c_ULTIMATE.start_entry_point_~c11~0#1.offset|))))) (and (or (and (forall ((v_ArrVal_278 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 32) (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_entry_point_~cfg~1#1.base| v_ArrVal_278) |c_ULTIMATE.start_entry_point_~c11~0#1.base|) |c_ULTIMATE.start_entry_point_~c11~0#1.offset|) (_ bv4 32)))) .cse0 .cse1) (forall ((v_ArrVal_277 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_entry_point_~cfg~1#1.base| v_ArrVal_277) |c_ULTIMATE.start_entry_point_~c11~0#1.base|) |c_ULTIMATE.start_entry_point_~c11~0#1.offset|) |c_ULTIMATE.start_entry_point_~cfg~1#1.base|))) (forall ((v_ArrVal_278 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_entry_point_~cfg~1#1.base| v_ArrVal_278) |c_ULTIMATE.start_entry_point_~c11~0#1.base|) |c_ULTIMATE.start_entry_point_~c11~0#1.offset|) (_ bv4 32)) (bvadd |c_ULTIMATE.start_entry_point_~cfg~1#1.offset| (_ bv4 32)))) .cse0 .cse1)) is different from false [2023-02-18 21:08:27,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 21:08:27,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148030441] [2023-02-18 21:08:27,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1148030441] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 21:08:27,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1450898572] [2023-02-18 21:08:27,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 21:08:27,727 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-02-18 21:08:27,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-02-18 21:08:27,728 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-02-18 21:08:27,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-02-18 21:08:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 21:08:27,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 44 conjunts are in the unsatisfiable core [2023-02-18 21:08:27,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 21:08:27,859 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 21:08:27,976 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 21:08:30,016 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:30,016 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 21:08:30,099 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 11 treesize of output 7 [2023-02-18 21:08:30,102 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 11 treesize of output 7 [2023-02-18 21:08:30,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27 [2023-02-18 21:08:30,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 9 treesize of output 3 [2023-02-18 21:08:30,203 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_304 (_ BitVec 32)) (|ldv_malloc_#res.base| (_ BitVec 32))) (and (= |c_#length| (store |c_old(#length)| |ldv_malloc_#res.base| v_ArrVal_304)) (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)))) (exists ((|v_ULTIMATE.start_entry_point_~c11~0#1.base_BEFORE_CALL_22| (_ BitVec 32))) (and (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_entry_point_~c11~0#1.base_BEFORE_CALL_22|) (_ bv0 32)) (_ bv0 32)) (not (= (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_entry_point_~c11~0#1.base_BEFORE_CALL_22|) (_ bv0 32)) |v_ULTIMATE.start_entry_point_~c11~0#1.base_BEFORE_CALL_22|))))) is different from true [2023-02-18 21:08:30,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 21:08:30,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 21:08:30,233 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:30,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 38 [2023-02-18 21:08:30,303 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:30,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 84 [2023-02-18 21:08:30,311 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:30,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 54 [2023-02-18 21:08:30,319 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 6 treesize of output 4 [2023-02-18 21:08:30,341 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 182 treesize of output 154 [2023-02-18 21:08:30,344 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 42 treesize of output 32 [2023-02-18 21:08:30,348 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 1 [2023-02-18 21:08:30,356 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 43 treesize of output 31 [2023-02-18 21:08:30,359 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 34 treesize of output 24 [2023-02-18 21:08:30,362 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 46 treesize of output 34 [2023-02-18 21:08:30,376 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 43 treesize of output 31 [2023-02-18 21:08:30,380 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 40 treesize of output 28 [2023-02-18 21:08:31,261 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:31,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 34 select indices, 34 select index equivalence classes, 0 disjoint index pairs (out of 561 index pairs), introduced 43 new quantified variables, introduced 561 case distinctions, treesize of input 1342 treesize of output 5487 [2023-02-18 21:08:40,499 INFO L217 Elim1Store]: Index analysis took 8783 ms [2023-02-18 21:08:40,509 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 21:08:40,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 30 select indices, 30 select index equivalence classes, 0 disjoint index pairs (out of 435 index pairs), introduced 30 new quantified variables, introduced 435 case distinctions, treesize of input 963 treesize of output 4577