./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 26d01a9c 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_test17_1-1.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 b6787eb3a37902efa71d2cd0d9e143f31d9492f6d095b3afd518dba74579db5b --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 05:56:36,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 05:56:36,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 05:56:36,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 05:56:36,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 05:56:36,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 05:56:36,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 05:56:36,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 05:56:36,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 05:56:36,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 05:56:36,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 05:56:36,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 05:56:36,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 05:56:36,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 05:56:36,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 05:56:36,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 05:56:36,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 05:56:36,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 05:56:36,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 05:56:36,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 05:56:36,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 05:56:36,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 05:56:36,327 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 05:56:36,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 05:56:36,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 05:56:36,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 05:56:36,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 05:56:36,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 05:56:36,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 05:56:36,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 05:56:36,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 05:56:36,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 05:56:36,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 05:56:36,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 05:56:36,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 05:56:36,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 05:56:36,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 05:56:36,334 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 05:56:36,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 05:56:36,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 05:56:36,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 05:56:36,337 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-18 05:56:36,355 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 05:56:36,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 05:56:36,355 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 05:56:36,355 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 05:56:36,356 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 05:56:36,356 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 05:56:36,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 05:56:36,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 05:56:36,356 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 05:56:36,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 05:56:36,358 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 05:56:36,358 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 05:56:36,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 05:56:36,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 05:56:36,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 05:56:36,358 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-18 05:56:36,358 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-18 05:56:36,359 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-18 05:56:36,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 05:56:36,359 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-18 05:56:36,359 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 05:56:36,359 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 05:56:36,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 05:56:36,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 05:56:36,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 05:56:36,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 05:56:36,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 05:56:36,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 05:56:36,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 05:56:36,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 05:56:36,361 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 05:56:36,361 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 05:56:36,361 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 05:56:36,361 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 05:56:36,361 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6787eb3a37902efa71d2cd0d9e143f31d9492f6d095b3afd518dba74579db5b [2023-02-18 05:56:36,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 05:56:36,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 05:56:36,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 05:56:36,555 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 05:56:36,555 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 05:56:36,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i [2023-02-18 05:56:37,466 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 05:56:37,668 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 05:56:37,669 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i [2023-02-18 05:56:37,680 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/732e70d93/22be28001a864d74b700830038bfe579/FLAG3c2d8a207 [2023-02-18 05:56:37,689 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/732e70d93/22be28001a864d74b700830038bfe579 [2023-02-18 05:56:37,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 05:56:37,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 05:56:37,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 05:56:37,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 05:56:37,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 05:56:37,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 05:56:37" (1/1) ... [2023-02-18 05:56:37,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23320aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:56:37, skipping insertion in model container [2023-02-18 05:56:37,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 05:56:37" (1/1) ... [2023-02-18 05:56:37,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 05:56:37,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 05:56:38,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 05:56:38,020 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 05:56:38,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5b8d2ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:56:38, skipping insertion in model container [2023-02-18 05:56:38,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 05:56:38,021 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-02-18 05:56:38,023 INFO L158 Benchmark]: Toolchain (without parser) took 330.94ms. Allocated memory is still 167.8MB. Free memory was 126.9MB in the beginning and 113.4MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-18 05:56:38,023 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 112.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 05:56:38,024 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.59ms. Allocated memory is still 167.8MB. Free memory was 126.9MB in the beginning and 113.4MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-18 05:56:38,025 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 112.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.59ms. Allocated memory is still 167.8MB. Free memory was 126.9MB in the beginning and 113.4MB in the end (delta: 13.5MB). 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_test17_1-1.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 b6787eb3a37902efa71d2cd0d9e143f31d9492f6d095b3afd518dba74579db5b --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 05:56:39,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 05:56:39,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 05:56:39,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 05:56:39,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 05:56:39,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 05:56:39,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 05:56:39,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 05:56:39,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 05:56:39,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 05:56:39,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 05:56:39,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 05:56:39,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 05:56:39,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 05:56:39,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 05:56:39,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 05:56:39,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 05:56:39,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 05:56:39,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 05:56:39,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 05:56:39,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 05:56:39,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 05:56:39,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 05:56:39,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 05:56:39,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 05:56:39,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 05:56:39,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 05:56:39,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 05:56:39,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 05:56:39,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 05:56:39,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 05:56:39,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 05:56:39,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 05:56:39,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 05:56:39,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 05:56:39,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 05:56:39,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 05:56:39,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 05:56:39,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 05:56:39,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 05:56:39,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 05:56:39,455 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-02-18 05:56:39,479 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 05:56:39,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 05:56:39,480 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 05:56:39,480 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 05:56:39,481 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 05:56:39,481 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 05:56:39,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 05:56:39,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 05:56:39,482 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 05:56:39,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 05:56:39,482 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 05:56:39,483 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 05:56:39,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 05:56:39,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 05:56:39,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 05:56:39,483 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-18 05:56:39,483 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-18 05:56:39,483 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-18 05:56:39,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 05:56:39,484 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-18 05:56:39,484 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-18 05:56:39,484 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-18 05:56:39,484 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 05:56:39,484 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 05:56:39,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 05:56:39,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 05:56:39,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 05:56:39,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 05:56:39,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 05:56:39,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 05:56:39,485 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-18 05:56:39,485 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-18 05:56:39,486 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 05:56:39,486 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 05:56:39,486 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 05:56:39,486 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-18 05:56:39,486 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 05:56:39,486 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6787eb3a37902efa71d2cd0d9e143f31d9492f6d095b3afd518dba74579db5b [2023-02-18 05:56:39,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 05:56:39,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 05:56:39,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 05:56:39,716 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 05:56:39,716 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 05:56:39,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i [2023-02-18 05:56:40,655 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 05:56:40,854 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 05:56:40,854 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i [2023-02-18 05:56:40,863 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecfef7d76/984d9995df4945cd884ac79eaab52ce5/FLAGdf1ad984b [2023-02-18 05:56:40,873 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecfef7d76/984d9995df4945cd884ac79eaab52ce5 [2023-02-18 05:56:40,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 05:56:40,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 05:56:40,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 05:56:40,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 05:56:40,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 05:56:40,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 05:56:40" (1/1) ... [2023-02-18 05:56:40,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3de99fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:56:40, skipping insertion in model container [2023-02-18 05:56:40,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 05:56:40" (1/1) ... [2023-02-18 05:56:40,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 05:56:40,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 05:56:41,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 05:56:41,132 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-02-18 05:56:41,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 05:56:41,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 05:56:41,168 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 05:56:41,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 05:56:41,220 INFO L208 MainTranslator]: Completed translation [2023-02-18 05:56:41,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:56:41 WrapperNode [2023-02-18 05:56:41,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 05:56:41,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 05:56:41,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 05:56:41,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 05:56:41,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:56:41" (1/1) ... [2023-02-18 05:56:41,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:56:41" (1/1) ... [2023-02-18 05:56:41,251 INFO L138 Inliner]: procedures = 167, calls = 78, calls flagged for inlining = 23, calls inlined = 5, statements flattened = 85 [2023-02-18 05:56:41,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 05:56:41,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 05:56:41,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 05:56:41,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 05:56:41,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:56:41" (1/1) ... [2023-02-18 05:56:41,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:56:41" (1/1) ... [2023-02-18 05:56:41,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:56:41" (1/1) ... [2023-02-18 05:56:41,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:56:41" (1/1) ... [2023-02-18 05:56:41,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:56:41" (1/1) ... [2023-02-18 05:56:41,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:56:41" (1/1) ... [2023-02-18 05:56:41,267 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:56:41" (1/1) ... [2023-02-18 05:56:41,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:56:41" (1/1) ... [2023-02-18 05:56:41,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 05:56:41,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 05:56:41,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 05:56:41,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 05:56:41,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:56:41" (1/1) ... [2023-02-18 05:56:41,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 05:56:41,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 05:56:41,290 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 05:56:41,292 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 05:56:41,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-02-18 05:56:41,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-02-18 05:56:41,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-18 05:56:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 05:56:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-18 05:56:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-18 05:56:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-18 05:56:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-02-18 05:56:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 05:56:41,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 05:56:41,423 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 05:56:41,430 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 05:56:41,603 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 05:56:41,607 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 05:56:41,607 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2023-02-18 05:56:41,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 05:56:41 BoogieIcfgContainer [2023-02-18 05:56:41,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 05:56:41,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 05:56:41,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 05:56:41,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 05:56:41,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 05:56:40" (1/3) ... [2023-02-18 05:56:41,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc0f739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 05:56:41, skipping insertion in model container [2023-02-18 05:56:41,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:56:41" (2/3) ... [2023-02-18 05:56:41,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc0f739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 05:56:41, skipping insertion in model container [2023-02-18 05:56:41,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 05:56:41" (3/3) ... [2023-02-18 05:56:41,614 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test17_1-1.i [2023-02-18 05:56:41,624 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 05:56:41,625 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-02-18 05:56:41,652 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 05:56:41,664 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;@7eda03dd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 05:56:41,664 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2023-02-18 05:56:41,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 54 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 05:56:41,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 05:56:41,678 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:56:41,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:56:41,679 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:56:41,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:56:41,684 INFO L85 PathProgramCache]: Analyzing trace with hash 67903625, now seen corresponding path program 1 times [2023-02-18 05:56:41,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:56:41,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294475997] [2023-02-18 05:56:41,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 05:56:41,693 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 05:56:41,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:56:41,695 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 05:56:41,696 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 05:56:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 05:56:41,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 05:56:41,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:56:41,813 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 05:56:41,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 05:56:41,814 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 05:56:41,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294475997] [2023-02-18 05:56:41,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294475997] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 05:56:41,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 05:56:41,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 05:56:41,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291461698] [2023-02-18 05:56:41,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 05:56:41,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 05:56:41,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 05:56:41,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 05:56:41,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 05:56:41,838 INFO L87 Difference]: Start difference. First operand has 58 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 54 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) 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 05:56:41,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 05:56:41,895 INFO L93 Difference]: Finished difference Result 111 states and 125 transitions. [2023-02-18 05:56:41,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 05:56:41,897 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 05:56:41,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 05:56:41,902 INFO L225 Difference]: With dead ends: 111 [2023-02-18 05:56:41,902 INFO L226 Difference]: Without dead ends: 107 [2023-02-18 05:56:41,903 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 05:56:41,906 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 53 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 05:56:41,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 239 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 05:56:41,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-02-18 05:56:41,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 60. [2023-02-18 05:56:41,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 39 states have (on average 1.5897435897435896) internal successors, (62), 55 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-18 05:56:41,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 68 transitions. [2023-02-18 05:56:41,930 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 68 transitions. Word has length 11 [2023-02-18 05:56:41,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 05:56:41,931 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 68 transitions. [2023-02-18 05:56:41,931 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 05:56:41,931 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2023-02-18 05:56:41,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 05:56:41,932 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:56:41,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:56:41,938 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-02-18 05:56:42,138 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 05:56:42,138 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:56:42,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:56:42,139 INFO L85 PathProgramCache]: Analyzing trace with hash 67902731, now seen corresponding path program 1 times [2023-02-18 05:56:42,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:56:42,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360141938] [2023-02-18 05:56:42,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 05:56:42,140 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 05:56:42,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:56:42,141 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 05:56:42,143 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 05:56:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 05:56:42,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 05:56:42,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:56:42,200 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 05:56:42,214 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 05:56:42,215 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 05:56:42,215 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 05:56:42,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360141938] [2023-02-18 05:56:42,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360141938] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 05:56:42,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 05:56:42,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 05:56:42,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821247280] [2023-02-18 05:56:42,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 05:56:42,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 05:56:42,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 05:56:42,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 05:56:42,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 05:56:42,217 INFO L87 Difference]: Start difference. First operand 60 states and 68 transitions. Second operand has 5 states, 4 states have (on average 2.25) 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 05:56:42,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 05:56:42,322 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2023-02-18 05:56:42,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 05:56:42,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) 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 05:56:42,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 05:56:42,324 INFO L225 Difference]: With dead ends: 82 [2023-02-18 05:56:42,324 INFO L226 Difference]: Without dead ends: 82 [2023-02-18 05:56:42,324 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 05:56:42,325 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 22 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 05:56:42,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 166 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 05:56:42,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-02-18 05:56:42,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 62. [2023-02-18 05:56:42,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 41 states have (on average 1.6097560975609757) internal successors, (66), 57 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-18 05:56:42,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2023-02-18 05:56:42,330 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 11 [2023-02-18 05:56:42,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 05:56:42,331 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2023-02-18 05:56:42,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) 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 05:56:42,331 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2023-02-18 05:56:42,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 05:56:42,331 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:56:42,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:56:42,338 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 05:56:42,538 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 05:56:42,538 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:56:42,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:56:42,539 INFO L85 PathProgramCache]: Analyzing trace with hash 67902732, now seen corresponding path program 1 times [2023-02-18 05:56:42,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:56:42,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886081281] [2023-02-18 05:56:42,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 05:56:42,539 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 05:56:42,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:56:42,541 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 05:56:42,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-02-18 05:56:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 05:56:42,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 05:56:42,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:56:42,609 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 05:56:42,654 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 05:56:42,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 05:56:42,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 05:56:42,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886081281] [2023-02-18 05:56:42,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886081281] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 05:56:42,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 05:56:42,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-02-18 05:56:42,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439424118] [2023-02-18 05:56:42,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 05:56:42,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-18 05:56:42,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 05:56:42,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-18 05:56:42,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-02-18 05:56:42,659 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 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 05:56:42,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 05:56:42,867 INFO L93 Difference]: Finished difference Result 89 states and 103 transitions. [2023-02-18 05:56:42,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 05:56:42,868 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 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 05:56:42,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 05:56:42,868 INFO L225 Difference]: With dead ends: 89 [2023-02-18 05:56:42,868 INFO L226 Difference]: Without dead ends: 89 [2023-02-18 05:56:42,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-02-18 05:56:42,869 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 89 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 05:56:42,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 341 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 05:56:42,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-02-18 05:56:42,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 64. [2023-02-18 05:56:42,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 43 states have (on average 1.5813953488372092) internal successors, (68), 59 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-18 05:56:42,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 74 transitions. [2023-02-18 05:56:42,874 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 74 transitions. Word has length 11 [2023-02-18 05:56:42,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 05:56:42,874 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 74 transitions. [2023-02-18 05:56:42,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 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 05:56:42,874 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 74 transitions. [2023-02-18 05:56:42,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 05:56:42,874 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:56:42,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:56:42,885 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 05:56:43,081 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 05:56:43,081 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:56:43,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:56:43,082 INFO L85 PathProgramCache]: Analyzing trace with hash 955407306, now seen corresponding path program 1 times [2023-02-18 05:56:43,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:56:43,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662661312] [2023-02-18 05:56:43,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 05:56:43,082 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 05:56:43,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:56:43,084 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 05:56:43,086 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 05:56:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 05:56:43,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 05:56:43,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:56:43,130 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 05:56:43,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 05:56:43,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 05:56:43,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662661312] [2023-02-18 05:56:43,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662661312] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 05:56:43,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 05:56:43,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 05:56:43,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604480941] [2023-02-18 05:56:43,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 05:56:43,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 05:56:43,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 05:56:43,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 05:56:43,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 05:56:43,133 INFO L87 Difference]: Start difference. First operand 64 states and 74 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 05:56:43,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 05:56:43,212 INFO L93 Difference]: Finished difference Result 104 states and 120 transitions. [2023-02-18 05:56:43,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 05:56:43,213 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 05:56:43,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 05:56:43,214 INFO L225 Difference]: With dead ends: 104 [2023-02-18 05:56:43,214 INFO L226 Difference]: Without dead ends: 101 [2023-02-18 05:56:43,214 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 05:56:43,215 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 42 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 05:56:43,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 180 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 05:56:43,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-02-18 05:56:43,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 80. [2023-02-18 05:56:43,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 58 states have (on average 1.5344827586206897) internal successors, (89), 74 states have internal predecessors, (89), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-02-18 05:56:43,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 98 transitions. [2023-02-18 05:56:43,228 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 98 transitions. Word has length 11 [2023-02-18 05:56:43,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 05:56:43,228 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 98 transitions. [2023-02-18 05:56:43,229 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 05:56:43,229 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 98 transitions. [2023-02-18 05:56:43,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 05:56:43,230 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:56:43,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:56:43,240 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 05:56:43,438 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 05:56:43,438 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:56:43,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:56:43,438 INFO L85 PathProgramCache]: Analyzing trace with hash 955406412, now seen corresponding path program 1 times [2023-02-18 05:56:43,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:56:43,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959256447] [2023-02-18 05:56:43,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 05:56:43,439 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 05:56:43,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:56:43,440 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 05:56:43,441 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 05:56:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 05:56:43,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 05:56:43,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:56:43,504 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 05:56:43,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 05:56:43,505 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 05:56:43,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [959256447] [2023-02-18 05:56:43,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [959256447] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 05:56:43,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 05:56:43,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 05:56:43,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902744019] [2023-02-18 05:56:43,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 05:56:43,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 05:56:43,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 05:56:43,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 05:56:43,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 05:56:43,506 INFO L87 Difference]: Start difference. First operand 80 states and 98 transitions. 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 05:56:43,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 05:56:43,527 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2023-02-18 05:56:43,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 05:56:43,528 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 05:56:43,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 05:56:43,529 INFO L225 Difference]: With dead ends: 61 [2023-02-18 05:56:43,529 INFO L226 Difference]: Without dead ends: 59 [2023-02-18 05:56:43,529 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 05:56:43,530 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 05:56:43,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 241 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 05:56:43,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-02-18 05:56:43,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-02-18 05:56:43,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 39 states have (on average 1.5384615384615385) internal successors, (60), 55 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 05:56:43,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2023-02-18 05:56:43,533 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 11 [2023-02-18 05:56:43,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 05:56:43,533 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2023-02-18 05:56:43,533 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 05:56:43,534 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2023-02-18 05:56:43,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-18 05:56:43,534 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:56:43,534 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:56:43,543 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 05:56:43,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 05:56:43,742 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:56:43,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:56:43,742 INFO L85 PathProgramCache]: Analyzing trace with hash -39339339, now seen corresponding path program 1 times [2023-02-18 05:56:43,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:56:43,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645370251] [2023-02-18 05:56:43,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 05:56:43,745 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 05:56:43,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:56:43,746 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 05:56:43,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-02-18 05:56:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 05:56:43,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-18 05:56:43,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:56:43,791 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 05:56:43,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 05:56:43,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 05:56:44,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 05:56:44,091 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 05:56:44,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645370251] [2023-02-18 05:56:44,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645370251] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 05:56:44,091 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 05:56:44,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-02-18 05:56:44,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279273774] [2023-02-18 05:56:44,091 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 05:56:44,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-18 05:56:44,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 05:56:44,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-18 05:56:44,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-02-18 05:56:44,092 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand has 16 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 14 states have internal predecessors, (23), 2 states have call successors, (2), 1 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 05:56:44,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 05:56:44,747 INFO L93 Difference]: Finished difference Result 129 states and 147 transitions. [2023-02-18 05:56:44,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-18 05:56:44,748 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 14 states have internal predecessors, (23), 2 states have call successors, (2), 1 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 14 [2023-02-18 05:56:44,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 05:56:44,749 INFO L225 Difference]: With dead ends: 129 [2023-02-18 05:56:44,749 INFO L226 Difference]: Without dead ends: 129 [2023-02-18 05:56:44,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2023-02-18 05:56:44,750 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 272 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-18 05:56:44,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 398 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-18 05:56:44,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-02-18 05:56:44,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 68. [2023-02-18 05:56:44,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 64 states have internal predecessors, (71), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 05:56:44,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2023-02-18 05:56:44,754 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 14 [2023-02-18 05:56:44,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 05:56:44,755 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2023-02-18 05:56:44,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 14 states have internal predecessors, (23), 2 states have call successors, (2), 1 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 05:56:44,755 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2023-02-18 05:56:44,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-18 05:56:44,755 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:56:44,756 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:56:44,762 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 (7)] Ended with exit code 0 [2023-02-18 05:56:44,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 05:56:44,962 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:56:44,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:56:44,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1216843566, now seen corresponding path program 1 times [2023-02-18 05:56:44,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:56:44,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994323209] [2023-02-18 05:56:44,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 05:56:44,963 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 05:56:44,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:56:44,964 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 05:56:44,965 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 05:56:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 05:56:45,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 05:56:45,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:56:45,028 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 05:56:45,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 05:56:45,072 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 05:56:45,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 05:56:45,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994323209] [2023-02-18 05:56:45,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994323209] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 05:56:45,073 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 05:56:45,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-02-18 05:56:45,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252982864] [2023-02-18 05:56:45,073 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 05:56:45,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-18 05:56:45,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 05:56:45,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-18 05:56:45,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-02-18 05:56:45,074 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 05:56:45,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 05:56:45,172 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2023-02-18 05:56:45,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-18 05:56:45,173 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2023-02-18 05:56:45,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 05:56:45,173 INFO L225 Difference]: With dead ends: 74 [2023-02-18 05:56:45,173 INFO L226 Difference]: Without dead ends: 74 [2023-02-18 05:56:45,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-02-18 05:56:45,174 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 73 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 05:56:45,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 262 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 05:56:45,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-02-18 05:56:45,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2023-02-18 05:56:45,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 69 states have internal predecessors, (75), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 05:56:45,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2023-02-18 05:56:45,177 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 22 [2023-02-18 05:56:45,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 05:56:45,177 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2023-02-18 05:56:45,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 05:56:45,178 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2023-02-18 05:56:45,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-18 05:56:45,178 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:56:45,178 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:56:45,185 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 05:56:45,385 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 05:56:45,385 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:56:45,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:56:45,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1294433228, now seen corresponding path program 2 times [2023-02-18 05:56:45,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:56:45,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195071515] [2023-02-18 05:56:45,386 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 05:56:45,386 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 05:56:45,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:56:45,387 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 05:56:45,387 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 05:56:45,438 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 05:56:45,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 05:56:45,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-18 05:56:45,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:56:45,451 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 05:56:45,547 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 05:56:45,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 05:56:46,153 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 05:56:46,153 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 05:56:46,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195071515] [2023-02-18 05:56:46,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195071515] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 05:56:46,154 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 05:56:46,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-02-18 05:56:46,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945239345] [2023-02-18 05:56:46,154 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 05:56:46,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 05:56:46,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 05:56:46,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 05:56:46,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2023-02-18 05:56:46,155 INFO L87 Difference]: Start difference. First operand 73 states and 80 transitions. Second operand has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 22 states have internal predecessors, (41), 2 states have call successors, (2), 1 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 05:56:47,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 05:56:47,900 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2023-02-18 05:56:47,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-18 05:56:47,901 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 22 states have internal predecessors, (41), 2 states have call successors, (2), 1 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 23 [2023-02-18 05:56:47,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 05:56:47,902 INFO L225 Difference]: With dead ends: 107 [2023-02-18 05:56:47,902 INFO L226 Difference]: Without dead ends: 107 [2023-02-18 05:56:47,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=311, Invalid=1021, Unknown=0, NotChecked=0, Total=1332 [2023-02-18 05:56:47,903 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 261 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-02-18 05:56:47,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 612 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-02-18 05:56:47,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-02-18 05:56:47,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 86. [2023-02-18 05:56:47,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 66 states have (on average 1.378787878787879) internal successors, (91), 82 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 05:56:47,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 96 transitions. [2023-02-18 05:56:47,907 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 96 transitions. Word has length 23 [2023-02-18 05:56:47,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 05:56:47,907 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 96 transitions. [2023-02-18 05:56:47,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 22 states have internal predecessors, (41), 2 states have call successors, (2), 1 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 05:56:47,907 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions. [2023-02-18 05:56:47,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-18 05:56:47,908 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:56:47,908 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:56:47,918 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 05:56:48,115 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 05:56:48,115 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:56:48,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:56:48,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1064458770, now seen corresponding path program 2 times [2023-02-18 05:56:48,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:56:48,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910993317] [2023-02-18 05:56:48,116 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 05:56:48,116 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 05:56:48,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:56:48,117 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 05:56:48,119 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 05:56:48,164 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-18 05:56:48,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 05:56:48,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 05:56:48,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:56:48,175 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-02-18 05:56:48,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 05:56:48,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 05:56:48,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910993317] [2023-02-18 05:56:48,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910993317] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 05:56:48,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 05:56:48,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 05:56:48,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878248168] [2023-02-18 05:56:48,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 05:56:48,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 05:56:48,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 05:56:48,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 05:56:48,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 05:56:48,177 INFO L87 Difference]: Start difference. First operand 86 states and 96 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 05:56:48,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 05:56:48,208 INFO L93 Difference]: Finished difference Result 126 states and 140 transitions. [2023-02-18 05:56:48,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 05:56:48,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2023-02-18 05:56:48,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 05:56:48,209 INFO L225 Difference]: With dead ends: 126 [2023-02-18 05:56:48,210 INFO L226 Difference]: Without dead ends: 126 [2023-02-18 05:56:48,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 05:56:48,210 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 126 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 05:56:48,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 109 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 05:56:48,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-02-18 05:56:48,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 87. [2023-02-18 05:56:48,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.373134328358209) internal successors, (92), 83 states have internal predecessors, (92), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 05:56:48,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 97 transitions. [2023-02-18 05:56:48,214 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 97 transitions. Word has length 34 [2023-02-18 05:56:48,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 05:56:48,214 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 97 transitions. [2023-02-18 05:56:48,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 05:56:48,215 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2023-02-18 05:56:48,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-02-18 05:56:48,215 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:56:48,215 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:56:48,226 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 (10)] Ended with exit code 0 [2023-02-18 05:56:48,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 05:56:48,422 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:56:48,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:56:48,422 INFO L85 PathProgramCache]: Analyzing trace with hash 391656853, now seen corresponding path program 1 times [2023-02-18 05:56:48,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:56:48,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987348114] [2023-02-18 05:56:48,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 05:56:48,423 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 05:56:48,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:56:48,424 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 05:56:48,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-02-18 05:56:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 05:56:48,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-18 05:56:48,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:56:48,536 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 4 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 05:56:48,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 05:56:48,719 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 05:56:48,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 05:56:48,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987348114] [2023-02-18 05:56:48,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987348114] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 05:56:48,720 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 05:56:48,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-02-18 05:56:48,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466284679] [2023-02-18 05:56:48,720 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 05:56:48,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-18 05:56:48,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 05:56:48,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-18 05:56:48,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2023-02-18 05:56:48,721 INFO L87 Difference]: Start difference. First operand 87 states and 97 transitions. Second operand has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-02-18 05:56:48,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 05:56:48,953 INFO L93 Difference]: Finished difference Result 87 states and 93 transitions. [2023-02-18 05:56:48,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-18 05:56:48,953 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2023-02-18 05:56:48,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 05:56:48,954 INFO L225 Difference]: With dead ends: 87 [2023-02-18 05:56:48,954 INFO L226 Difference]: Without dead ends: 87 [2023-02-18 05:56:48,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2023-02-18 05:56:48,955 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 70 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 05:56:48,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 409 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 05:56:48,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-02-18 05:56:48,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-02-18 05:56:48,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 83 states have internal predecessors, (88), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 05:56:48,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2023-02-18 05:56:48,958 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 38 [2023-02-18 05:56:48,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 05:56:48,958 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2023-02-18 05:56:48,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-02-18 05:56:48,958 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2023-02-18 05:56:48,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-02-18 05:56:48,959 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:56:48,959 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:56:48,966 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 (11)] Ended with exit code 0 [2023-02-18 05:56:49,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 05:56:49,166 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:56:49,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:56:49,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1227509228, now seen corresponding path program 3 times [2023-02-18 05:56:49,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:56:49,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065168217] [2023-02-18 05:56:49,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 05:56:49,167 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 05:56:49,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:56:49,168 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 05:56:49,169 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 05:56:49,310 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-18 05:56:49,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 05:56:49,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-18 05:56:49,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:56:49,323 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 05:56:49,541 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 05:56:49,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 05:56:51,598 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 05:56:51,599 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 05:56:51,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065168217] [2023-02-18 05:56:51,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065168217] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 05:56:51,599 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 05:56:51,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 36 [2023-02-18 05:56:51,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824105531] [2023-02-18 05:56:51,599 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 05:56:51,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-02-18 05:56:51,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 05:56:51,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-02-18 05:56:51,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=979, Unknown=0, NotChecked=0, Total=1260 [2023-02-18 05:56:51,601 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand has 36 states, 34 states have (on average 2.264705882352941) internal successors, (77), 34 states have internal predecessors, (77), 2 states have call successors, (2), 1 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 05:56:53,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 05:56:53,927 INFO L93 Difference]: Finished difference Result 129 states and 142 transitions. [2023-02-18 05:56:53,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-02-18 05:56:53,928 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 34 states have (on average 2.264705882352941) internal successors, (77), 34 states have internal predecessors, (77), 2 states have call successors, (2), 1 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 41 [2023-02-18 05:56:53,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 05:56:53,929 INFO L225 Difference]: With dead ends: 129 [2023-02-18 05:56:53,929 INFO L226 Difference]: Without dead ends: 129 [2023-02-18 05:56:53,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 42 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=328, Invalid=1232, Unknown=0, NotChecked=0, Total=1560 [2023-02-18 05:56:53,930 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 701 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-02-18 05:56:53,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 760 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-02-18 05:56:53,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-02-18 05:56:53,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 85. [2023-02-18 05:56:53,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 81 states have internal predecessors, (85), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 05:56:53,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2023-02-18 05:56:53,932 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 41 [2023-02-18 05:56:53,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 05:56:53,932 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2023-02-18 05:56:53,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 34 states have (on average 2.264705882352941) internal successors, (77), 34 states have internal predecessors, (77), 2 states have call successors, (2), 1 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 05:56:53,933 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2023-02-18 05:56:53,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-02-18 05:56:53,933 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:56:53,933 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:56:53,944 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 05:56:54,134 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 05:56:54,134 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:56:54,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:56:54,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1389862613, now seen corresponding path program 2 times [2023-02-18 05:56:54,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:56:54,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877286709] [2023-02-18 05:56:54,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 05:56:54,135 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 05:56:54,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:56:54,136 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 05:56:54,137 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 05:56:54,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 05:56:54,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 05:56:54,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 05:56:54,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:56:54,250 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 05:56:54,267 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (= (store |c_old(#valid)| |ldv_malloc_#res.base| (_ bv1 1)) |c_#valid|)) is different from true [2023-02-18 05:56:54,275 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 05:56:54,276 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 05:56:54,310 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 2 not checked. [2023-02-18 05:56:54,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 05:56:54,364 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-02-18 05:56:54,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 05:56:54,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877286709] [2023-02-18 05:56:54,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877286709] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 05:56:54,365 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 05:56:54,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2023-02-18 05:56:54,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098448665] [2023-02-18 05:56:54,365 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 05:56:54,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-18 05:56:54,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 05:56:54,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-18 05:56:54,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=43, Unknown=1, NotChecked=12, Total=72 [2023-02-18 05:56:54,366 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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 05:56:54,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 05:56:54,555 INFO L93 Difference]: Finished difference Result 122 states and 128 transitions. [2023-02-18 05:56:54,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 05:56:54,556 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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 50 [2023-02-18 05:56:54,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 05:56:54,556 INFO L225 Difference]: With dead ends: 122 [2023-02-18 05:56:54,557 INFO L226 Difference]: Without dead ends: 122 [2023-02-18 05:56:54,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2023-02-18 05:56:54,557 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 94 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 72 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 05:56:54,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 191 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 129 Invalid, 0 Unknown, 72 Unchecked, 0.2s Time] [2023-02-18 05:56:54,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-02-18 05:56:54,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 83. [2023-02-18 05:56:54,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 66 states have (on average 1.2575757575757576) internal successors, (83), 79 states have internal predecessors, (83), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 05:56:54,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 88 transitions. [2023-02-18 05:56:54,560 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 88 transitions. Word has length 50 [2023-02-18 05:56:54,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 05:56:54,560 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 88 transitions. [2023-02-18 05:56:54,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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 05:56:54,560 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 88 transitions. [2023-02-18 05:56:54,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-02-18 05:56:54,561 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:56:54,561 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:56:54,572 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 05:56:54,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 05:56:54,773 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:56:54,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:56:54,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1389862614, now seen corresponding path program 1 times [2023-02-18 05:56:54,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:56:54,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1226660345] [2023-02-18 05:56:54,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 05:56:54,774 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 05:56:54,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:56:54,775 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 05:56:54,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-02-18 05:56:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 05:56:54,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-18 05:56:54,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:56:54,908 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 05:56:54,911 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 05:56:54,983 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (exists ((v_ArrVal_337 (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |ldv_malloc_#res.base| v_ArrVal_337))) (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)))) is different from true [2023-02-18 05:56:54,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 05:56:54,994 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 14 treesize of output 16 [2023-02-18 05:56:54,998 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 05:56:54,998 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 05:56:55,012 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 145 trivial. 2 not checked. [2023-02-18 05:56:55,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 05:56:57,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 05:56:57,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1226660345] [2023-02-18 05:56:57,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1226660345] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 05:56:57,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [170460803] [2023-02-18 05:56:57,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 05:56:57,125 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-02-18 05:56:57,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-02-18 05:56:57,126 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-02-18 05:56:57,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-02-18 05:56:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 05:56:57,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-18 05:56:57,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:56:57,328 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 05:56:57,330 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 05:56:57,346 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_407 (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |ldv_malloc_#res.base| v_ArrVal_407))))) is different from true [2023-02-18 05:56:57,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 05:56:57,356 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 14 treesize of output 16 [2023-02-18 05:56:57,358 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 05:56:57,358 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 05:56:57,360 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 145 trivial. 2 not checked. [2023-02-18 05:56:57,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 05:56:59,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [170460803] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 05:56:59,459 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 05:56:59,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2023-02-18 05:56:59,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736602587] [2023-02-18 05:56:59,459 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 05:56:59,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 05:56:59,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 05:56:59,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 05:56:59,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=108, Unknown=3, NotChecked=42, Total=182 [2023-02-18 05:56:59,460 INFO L87 Difference]: Start difference. First operand 83 states and 88 transitions. Second operand has 12 states, 10 states have (on average 2.1) internal successors, (21), 11 states have internal predecessors, (21), 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 05:56:59,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 05:56:59,959 INFO L93 Difference]: Finished difference Result 202 states and 219 transitions. [2023-02-18 05:56:59,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-18 05:56:59,959 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.1) internal successors, (21), 11 states have internal predecessors, (21), 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 50 [2023-02-18 05:56:59,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 05:56:59,960 INFO L225 Difference]: With dead ends: 202 [2023-02-18 05:56:59,960 INFO L226 Difference]: Without dead ends: 202 [2023-02-18 05:56:59,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=69, Invalid=278, Unknown=3, NotChecked=70, Total=420 [2023-02-18 05:56:59,961 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 211 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 216 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 05:56:59,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 437 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 426 Invalid, 0 Unknown, 216 Unchecked, 0.4s Time] [2023-02-18 05:56:59,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2023-02-18 05:56:59,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 87. [2023-02-18 05:56:59,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 69 states have (on average 1.2608695652173914) internal successors, (87), 82 states have internal predecessors, (87), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-18 05:56:59,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2023-02-18 05:56:59,964 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 50 [2023-02-18 05:56:59,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 05:56:59,965 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2023-02-18 05:56:59,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.1) internal successors, (21), 11 states have internal predecessors, (21), 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 05:56:59,965 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2023-02-18 05:56:59,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-02-18 05:56:59,966 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:56:59,966 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:56:59,985 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2023-02-18 05:57:00,177 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 (14)] Ended with exit code 0 [2023-02-18 05:57:00,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 05:57:00,369 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:57:00,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:57:00,370 INFO L85 PathProgramCache]: Analyzing trace with hash -76906781, now seen corresponding path program 1 times [2023-02-18 05:57:00,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:57:00,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917743210] [2023-02-18 05:57:00,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 05:57:00,370 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 05:57:00,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:57:00,371 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 05:57:00,373 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 05:57:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 05:57:00,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 05:57:00,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:57:00,480 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-02-18 05:57:00,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 05:57:00,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 05:57:00,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917743210] [2023-02-18 05:57:00,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917743210] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 05:57:00,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 05:57:00,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 05:57:00,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931603526] [2023-02-18 05:57:00,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 05:57:00,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 05:57:00,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 05:57:00,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 05:57:00,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 05:57:00,482 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 05:57:00,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 05:57:00,509 INFO L93 Difference]: Finished difference Result 116 states and 127 transitions. [2023-02-18 05:57:00,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 05:57:00,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 52 [2023-02-18 05:57:00,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 05:57:00,510 INFO L225 Difference]: With dead ends: 116 [2023-02-18 05:57:00,510 INFO L226 Difference]: Without dead ends: 116 [2023-02-18 05:57:00,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-18 05:57:00,511 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 23 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 05:57:00,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 222 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 05:57:00,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-02-18 05:57:00,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 91. [2023-02-18 05:57:00,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 73 states have (on average 1.2465753424657535) internal successors, (91), 84 states have internal predecessors, (91), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-18 05:57:00,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 99 transitions. [2023-02-18 05:57:00,514 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 99 transitions. Word has length 52 [2023-02-18 05:57:00,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 05:57:00,514 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 99 transitions. [2023-02-18 05:57:00,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 05:57:00,514 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 99 transitions. [2023-02-18 05:57:00,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-02-18 05:57:00,517 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:57:00,517 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:57:00,526 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 05:57:00,723 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 05:57:00,724 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:57:00,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:57:00,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1665903554, now seen corresponding path program 1 times [2023-02-18 05:57:00,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:57:00,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253828144] [2023-02-18 05:57:00,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 05:57:00,725 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 05:57:00,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:57:00,726 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 05:57:00,726 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 05:57:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 05:57:00,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-18 05:57:00,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:57:00,832 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-02-18 05:57:00,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 05:57:00,832 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 05:57:00,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253828144] [2023-02-18 05:57:00,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [253828144] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 05:57:00,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 05:57:00,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 05:57:00,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913616437] [2023-02-18 05:57:00,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 05:57:00,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 05:57:00,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 05:57:00,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 05:57:00,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 05:57:00,833 INFO L87 Difference]: Start difference. First operand 91 states and 99 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 05:57:00,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 05:57:00,866 INFO L93 Difference]: Finished difference Result 111 states and 119 transitions. [2023-02-18 05:57:00,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 05:57:00,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2023-02-18 05:57:00,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 05:57:00,867 INFO L225 Difference]: With dead ends: 111 [2023-02-18 05:57:00,867 INFO L226 Difference]: Without dead ends: 111 [2023-02-18 05:57:00,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 05:57:00,867 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 39 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 05:57:00,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 168 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 05:57:00,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-02-18 05:57:00,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 93. [2023-02-18 05:57:00,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 75 states have (on average 1.24) internal successors, (93), 86 states have internal predecessors, (93), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-18 05:57:00,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 101 transitions. [2023-02-18 05:57:00,870 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 101 transitions. Word has length 52 [2023-02-18 05:57:00,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 05:57:00,870 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 101 transitions. [2023-02-18 05:57:00,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 05:57:00,870 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 101 transitions. [2023-02-18 05:57:00,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-02-18 05:57:00,870 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:57:00,870 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:57:00,880 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 05:57:01,080 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 05:57:01,080 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:57:01,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:57:01,081 INFO L85 PathProgramCache]: Analyzing trace with hash 584357413, now seen corresponding path program 1 times [2023-02-18 05:57:01,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:57:01,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246590666] [2023-02-18 05:57:01,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 05:57:01,081 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 05:57:01,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:57:01,082 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 05:57:01,083 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 05:57:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 05:57:01,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-18 05:57:01,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:57:01,198 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 05:57:01,216 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-02-18 05:57:01,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 05:57:01,236 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-02-18 05:57:01,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 05:57:01,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246590666] [2023-02-18 05:57:01,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246590666] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 05:57:01,236 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 05:57:01,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2023-02-18 05:57:01,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390230027] [2023-02-18 05:57:01,236 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 05:57:01,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-18 05:57:01,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 05:57:01,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-18 05:57:01,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-02-18 05:57:01,237 INFO L87 Difference]: Start difference. First operand 93 states and 101 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 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 05:57:01,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 05:57:01,370 INFO L93 Difference]: Finished difference Result 117 states and 126 transitions. [2023-02-18 05:57:01,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 05:57:01,371 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 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 55 [2023-02-18 05:57:01,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 05:57:01,371 INFO L225 Difference]: With dead ends: 117 [2023-02-18 05:57:01,371 INFO L226 Difference]: Without dead ends: 117 [2023-02-18 05:57:01,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-02-18 05:57:01,372 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 43 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 05:57:01,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 233 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 05:57:01,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-02-18 05:57:01,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 98. [2023-02-18 05:57:01,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 80 states have (on average 1.2625) internal successors, (101), 91 states have internal predecessors, (101), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-18 05:57:01,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 109 transitions. [2023-02-18 05:57:01,374 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 109 transitions. Word has length 55 [2023-02-18 05:57:01,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 05:57:01,374 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 109 transitions. [2023-02-18 05:57:01,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 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 05:57:01,374 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 109 transitions. [2023-02-18 05:57:01,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-02-18 05:57:01,375 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:57:01,375 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:57:01,388 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 05:57:01,582 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 05:57:01,583 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:57:01,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:57:01,583 INFO L85 PathProgramCache]: Analyzing trace with hash 584357414, now seen corresponding path program 1 times [2023-02-18 05:57:01,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:57:01,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657619885] [2023-02-18 05:57:01,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 05:57:01,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 05:57:01,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:57:01,584 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 05:57:01,585 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 05:57:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 05:57:01,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-18 05:57:01,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:57:01,693 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 05:57:01,746 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-02-18 05:57:01,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 05:57:02,004 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-02-18 05:57:02,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 05:57:02,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657619885] [2023-02-18 05:57:02,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1657619885] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 05:57:02,005 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 05:57:02,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-02-18 05:57:02,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238012311] [2023-02-18 05:57:02,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 05:57:02,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-18 05:57:02,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 05:57:02,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-18 05:57:02,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2023-02-18 05:57:02,006 INFO L87 Difference]: Start difference. First operand 98 states and 109 transitions. Second operand has 16 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 14 states have internal predecessors, (47), 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 05:57:02,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 05:57:02,721 INFO L93 Difference]: Finished difference Result 164 states and 182 transitions. [2023-02-18 05:57:02,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-18 05:57:02,721 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 14 states have internal predecessors, (47), 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 55 [2023-02-18 05:57:02,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 05:57:02,722 INFO L225 Difference]: With dead ends: 164 [2023-02-18 05:57:02,722 INFO L226 Difference]: Without dead ends: 164 [2023-02-18 05:57:02,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2023-02-18 05:57:02,722 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 273 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-18 05:57:02,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 498 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-18 05:57:02,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-02-18 05:57:02,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 129. [2023-02-18 05:57:02,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 110 states have (on average 1.3636363636363635) internal successors, (150), 121 states have internal predecessors, (150), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) [2023-02-18 05:57:02,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 161 transitions. [2023-02-18 05:57:02,726 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 161 transitions. Word has length 55 [2023-02-18 05:57:02,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 05:57:02,726 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 161 transitions. [2023-02-18 05:57:02,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 14 states have internal predecessors, (47), 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 05:57:02,726 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 161 transitions. [2023-02-18 05:57:02,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-02-18 05:57:02,726 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:57:02,726 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:57:02,736 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 05:57:02,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 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 05:57:02,934 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:57:02,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:57:02,934 INFO L85 PathProgramCache]: Analyzing trace with hash -675254105, now seen corresponding path program 1 times [2023-02-18 05:57:02,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:57:02,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838106247] [2023-02-18 05:57:02,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 05:57:02,935 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 05:57:02,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:57:02,935 INFO L229 MonitoredProcess]: Starting monitored process 20 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 05:57:02,938 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 (20)] Waiting until timeout for monitored process [2023-02-18 05:57:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 05:57:03,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 05:57:03,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:57:03,056 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-02-18 05:57:03,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 05:57:03,080 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-02-18 05:57:03,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 05:57:03,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838106247] [2023-02-18 05:57:03,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838106247] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 05:57:03,081 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 05:57:03,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-02-18 05:57:03,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756228915] [2023-02-18 05:57:03,081 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 05:57:03,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-18 05:57:03,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 05:57:03,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-18 05:57:03,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-02-18 05:57:03,082 INFO L87 Difference]: Start difference. First operand 129 states and 161 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 05:57:03,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 05:57:03,177 INFO L93 Difference]: Finished difference Result 333 states and 433 transitions. [2023-02-18 05:57:03,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 05:57:03,178 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 56 [2023-02-18 05:57:03,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 05:57:03,179 INFO L225 Difference]: With dead ends: 333 [2023-02-18 05:57:03,179 INFO L226 Difference]: Without dead ends: 333 [2023-02-18 05:57:03,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2023-02-18 05:57:03,180 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 368 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 05:57:03,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 244 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 05:57:03,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2023-02-18 05:57:03,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 161. [2023-02-18 05:57:03,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 138 states have (on average 1.3478260869565217) internal successors, (186), 147 states have internal predecessors, (186), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (15), 12 states have call predecessors, (15), 8 states have call successors, (15) [2023-02-18 05:57:03,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 209 transitions. [2023-02-18 05:57:03,191 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 209 transitions. Word has length 56 [2023-02-18 05:57:03,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 05:57:03,191 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 209 transitions. [2023-02-18 05:57:03,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-18 05:57:03,192 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 209 transitions. [2023-02-18 05:57:03,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-02-18 05:57:03,192 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 05:57:03,192 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 05:57:03,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-02-18 05:57:03,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 05:57:03,401 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 14 more)] === [2023-02-18 05:57:03,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 05:57:03,402 INFO L85 PathProgramCache]: Analyzing trace with hash 935210686, now seen corresponding path program 1 times [2023-02-18 05:57:03,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 05:57:03,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [811504064] [2023-02-18 05:57:03,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 05:57:03,402 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 05:57:03,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 05:57:03,404 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 05:57:03,405 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 05:57:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 05:57:03,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 38 conjunts are in the unsatisfiable core [2023-02-18 05:57:03,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 05:57:03,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-02-18 05:57:03,559 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2023-02-18 05:57:03,567 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 05:57:03,568 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 70 [2023-02-18 05:57:03,583 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 05:57:03,583 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 70 [2023-02-18 05:57:03,618 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 05:57:03,618 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 70 [2023-02-18 05:57:03,636 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 05:57:03,637 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 70 [2023-02-18 05:57:03,660 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 05:57:03,660 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 70 [2023-02-18 05:57:03,691 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 05:57:03,691 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 70 [2023-02-18 05:57:03,717 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 05:57:03,717 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 70 [2023-02-18 05:57:03,745 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2023-02-18 05:57:03,811 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 05:57:03,811 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 10 [2023-02-18 05:57:03,826 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 05:57:03,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 05:57:06,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 171 [2023-02-18 05:57:07,369 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 449701587934 treesize of output 449634479070