./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3dbbec33 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_test9.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 d93866bdcd748cdf15837797eb67e5b49645998c33f9f4788420360893eea3e2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3dbbec3 [2023-02-14 13:39:06,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 13:39:06,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 13:39:06,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 13:39:06,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 13:39:06,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 13:39:06,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 13:39:06,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 13:39:06,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 13:39:06,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 13:39:06,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 13:39:06,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 13:39:06,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 13:39:06,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 13:39:06,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 13:39:06,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 13:39:06,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 13:39:06,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 13:39:06,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 13:39:06,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 13:39:06,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 13:39:06,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 13:39:06,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 13:39:06,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 13:39:06,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 13:39:06,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 13:39:06,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 13:39:06,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 13:39:06,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 13:39:06,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 13:39:06,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 13:39:06,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 13:39:06,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 13:39:06,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 13:39:06,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 13:39:06,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 13:39:06,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 13:39:06,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 13:39:06,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 13:39:06,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 13:39:06,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 13:39:06,390 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-14 13:39:06,403 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 13:39:06,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 13:39:06,404 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 13:39:06,404 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 13:39:06,404 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 13:39:06,405 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 13:39:06,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 13:39:06,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 13:39:06,405 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 13:39:06,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 13:39:06,406 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 13:39:06,406 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 13:39:06,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 13:39:06,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 13:39:06,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 13:39:06,406 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-14 13:39:06,407 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-14 13:39:06,407 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-14 13:39:06,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 13:39:06,407 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-14 13:39:06,407 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 13:39:06,407 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 13:39:06,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 13:39:06,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 13:39:06,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 13:39:06,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 13:39:06,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 13:39:06,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 13:39:06,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 13:39:06,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 13:39:06,409 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 13:39:06,409 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 13:39:06,409 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 13:39:06,409 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 13:39:06,409 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d93866bdcd748cdf15837797eb67e5b49645998c33f9f4788420360893eea3e2 [2023-02-14 13:39:06,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 13:39:06,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 13:39:06,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 13:39:06,661 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 13:39:06,661 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 13:39:06,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2023-02-14 13:39:07,553 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 13:39:07,774 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 13:39:07,775 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2023-02-14 13:39:07,784 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe8c63256/5a7bb10826044ee38d22377216aedb86/FLAGeeab4f5dd [2023-02-14 13:39:07,793 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe8c63256/5a7bb10826044ee38d22377216aedb86 [2023-02-14 13:39:07,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 13:39:07,796 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 13:39:07,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 13:39:07,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 13:39:07,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 13:39:07,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 01:39:07" (1/1) ... [2023-02-14 13:39:07,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e08f4f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:39:07, skipping insertion in model container [2023-02-14 13:39:07,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 01:39:07" (1/1) ... [2023-02-14 13:39:07,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 13:39:07,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 13:39:08,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 13:39:08,159 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) [2023-02-14 13:39:08,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@16952614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:39:08, skipping insertion in model container [2023-02-14 13:39:08,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 13:39:08,161 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-02-14 13:39:08,162 INFO L158 Benchmark]: Toolchain (without parser) took 365.33ms. Allocated memory is still 125.8MB. Free memory was 87.3MB in the beginning and 73.4MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-14 13:39:08,163 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 100.7MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 13:39:08,163 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.87ms. Allocated memory is still 125.8MB. Free memory was 87.0MB in the beginning and 73.7MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-14 13:39:08,164 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 100.7MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.87ms. Allocated memory is still 125.8MB. Free memory was 87.0MB in the beginning and 73.7MB in the end (delta: 13.3MB). 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_test9.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 d93866bdcd748cdf15837797eb67e5b49645998c33f9f4788420360893eea3e2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3dbbec3 [2023-02-14 13:39:09,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 13:39:09,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 13:39:10,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 13:39:10,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 13:39:10,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 13:39:10,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 13:39:10,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 13:39:10,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 13:39:10,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 13:39:10,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 13:39:10,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 13:39:10,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 13:39:10,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 13:39:10,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 13:39:10,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 13:39:10,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 13:39:10,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 13:39:10,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 13:39:10,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 13:39:10,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 13:39:10,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 13:39:10,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 13:39:10,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 13:39:10,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 13:39:10,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 13:39:10,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 13:39:10,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 13:39:10,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 13:39:10,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 13:39:10,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 13:39:10,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 13:39:10,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 13:39:10,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 13:39:10,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 13:39:10,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 13:39:10,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 13:39:10,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 13:39:10,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 13:39:10,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 13:39:10,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 13:39:10,055 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-02-14 13:39:10,081 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 13:39:10,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 13:39:10,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 13:39:10,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 13:39:10,083 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 13:39:10,083 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 13:39:10,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 13:39:10,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 13:39:10,084 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 13:39:10,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 13:39:10,085 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 13:39:10,085 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 13:39:10,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 13:39:10,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 13:39:10,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 13:39:10,085 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-14 13:39:10,086 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-14 13:39:10,086 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-14 13:39:10,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 13:39:10,086 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-14 13:39:10,086 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-14 13:39:10,086 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-14 13:39:10,103 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 13:39:10,103 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 13:39:10,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 13:39:10,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 13:39:10,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 13:39:10,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 13:39:10,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 13:39:10,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 13:39:10,104 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-14 13:39:10,104 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-14 13:39:10,105 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 13:39:10,105 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 13:39:10,105 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 13:39:10,105 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-14 13:39:10,105 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 13:39:10,105 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d93866bdcd748cdf15837797eb67e5b49645998c33f9f4788420360893eea3e2 [2023-02-14 13:39:10,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 13:39:10,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 13:39:10,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 13:39:10,410 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 13:39:10,410 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 13:39:10,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2023-02-14 13:39:11,445 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 13:39:11,682 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 13:39:11,682 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test9.i [2023-02-14 13:39:11,700 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f889e5cc/f11821d36c6148439d97b8980f6d1226/FLAGe0dc0e435 [2023-02-14 13:39:11,720 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f889e5cc/f11821d36c6148439d97b8980f6d1226 [2023-02-14 13:39:11,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 13:39:11,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 13:39:11,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 13:39:11,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 13:39:11,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 13:39:11,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 01:39:11" (1/1) ... [2023-02-14 13:39:11,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b16b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:39:11, skipping insertion in model container [2023-02-14 13:39:11,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 01:39:11" (1/1) ... [2023-02-14 13:39:11,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 13:39:11,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 13:39:12,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 13:39:12,025 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-02-14 13:39:12,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 13:39:12,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 13:39:12,085 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 13:39:12,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 13:39:12,170 INFO L208 MainTranslator]: Completed translation [2023-02-14 13:39:12,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:39:12 WrapperNode [2023-02-14 13:39:12,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 13:39:12,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 13:39:12,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 13:39:12,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 13:39:12,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:39:12" (1/1) ... [2023-02-14 13:39:12,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:39:12" (1/1) ... [2023-02-14 13:39:12,211 INFO L138 Inliner]: procedures = 167, calls = 71, calls flagged for inlining = 23, calls inlined = 5, statements flattened = 30 [2023-02-14 13:39:12,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 13:39:12,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 13:39:12,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 13:39:12,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 13:39:12,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:39:12" (1/1) ... [2023-02-14 13:39:12,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:39:12" (1/1) ... [2023-02-14 13:39:12,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:39:12" (1/1) ... [2023-02-14 13:39:12,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:39:12" (1/1) ... [2023-02-14 13:39:12,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:39:12" (1/1) ... [2023-02-14 13:39:12,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:39:12" (1/1) ... [2023-02-14 13:39:12,247 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:39:12" (1/1) ... [2023-02-14 13:39:12,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:39:12" (1/1) ... [2023-02-14 13:39:12,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 13:39:12,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 13:39:12,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 13:39:12,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 13:39:12,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:39:12" (1/1) ... [2023-02-14 13:39:12,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 13:39:12,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 13:39:12,274 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) [2023-02-14 13:39:12,276 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 [2023-02-14 13:39:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-02-14 13:39:12,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-02-14 13:39:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-14 13:39:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-14 13:39:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-14 13:39:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-02-14 13:39:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 13:39:12,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 13:39:12,401 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 13:39:12,403 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 13:39:12,501 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 13:39:12,505 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 13:39:12,508 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-14 13:39:12,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 01:39:12 BoogieIcfgContainer [2023-02-14 13:39:12,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 13:39:12,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 13:39:12,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 13:39:12,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 13:39:12,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 01:39:11" (1/3) ... [2023-02-14 13:39:12,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77177ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 01:39:12, skipping insertion in model container [2023-02-14 13:39:12,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 01:39:12" (2/3) ... [2023-02-14 13:39:12,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77177ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 01:39:12, skipping insertion in model container [2023-02-14 13:39:12,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 01:39:12" (3/3) ... [2023-02-14 13:39:12,516 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test9.i [2023-02-14 13:39:12,527 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 13:39:12,527 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-14 13:39:12,568 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 13:39:12,573 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;@5b76cac7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 13:39:12,573 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-14 13:39:12,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 21 states have internal predecessors, (24), 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) [2023-02-14 13:39:12,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-14 13:39:12,591 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 13:39:12,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 13:39:12,592 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2023-02-14 13:39:12,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 13:39:12,597 INFO L85 PathProgramCache]: Analyzing trace with hash 2147112549, now seen corresponding path program 1 times [2023-02-14 13:39:12,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 13:39:12,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798826722] [2023-02-14 13:39:12,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 13:39:12,606 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 [2023-02-14 13:39:12,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 13:39:12,609 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) [2023-02-14 13:39:12,610 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 [2023-02-14 13:39:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 13:39:12,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 13:39:12,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 13:39:12,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 13:39:12,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 13:39:12,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-14 13:39:12,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798826722] [2023-02-14 13:39:12,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1798826722] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 13:39:12,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 13:39:12,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 13:39:12,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381577055] [2023-02-14 13:39:12,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 13:39:12,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-14 13:39:12,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-14 13:39:12,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-14 13:39:12,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-14 13:39:12,816 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 21 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-14 13:39:12,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 13:39:12,866 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2023-02-14 13:39:12,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-14 13:39:12,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-02-14 13:39:12,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 13:39:12,875 INFO L225 Difference]: With dead ends: 23 [2023-02-14 13:39:12,876 INFO L226 Difference]: Without dead ends: 21 [2023-02-14 13:39:12,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-14 13:39:12,883 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 18 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 13:39:12,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 57 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 13:39:12,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-02-14 13:39:12,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-02-14 13:39:12,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.3125) internal successors, (21), 18 states have internal predecessors, (21), 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) [2023-02-14 13:39:12,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2023-02-14 13:39:12,904 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 12 [2023-02-14 13:39:12,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 13:39:12,905 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2023-02-14 13:39:12,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-14 13:39:12,905 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2023-02-14 13:39:12,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-14 13:39:12,905 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 13:39:12,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 13:39:12,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-02-14 13:39:13,113 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 [2023-02-14 13:39:13,113 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2023-02-14 13:39:13,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 13:39:13,114 INFO L85 PathProgramCache]: Analyzing trace with hash 2135979633, now seen corresponding path program 1 times [2023-02-14 13:39:13,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 13:39:13,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050866475] [2023-02-14 13:39:13,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 13:39:13,114 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 [2023-02-14 13:39:13,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 13:39:13,116 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) [2023-02-14 13:39:13,118 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 [2023-02-14 13:39:13,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 13:39:13,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-14 13:39:13,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 13:39:13,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 13:39:13,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 13:39:13,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-14 13:39:13,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050866475] [2023-02-14 13:39:13,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050866475] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 13:39:13,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 13:39:13,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 13:39:13,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176929888] [2023-02-14 13:39:13,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 13:39:13,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-14 13:39:13,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-14 13:39:13,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-14 13:39:13,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-02-14 13:39:13,271 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-14 13:39:13,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 13:39:13,357 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2023-02-14 13:39:13,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 13:39:13,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-02-14 13:39:13,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 13:39:13,359 INFO L225 Difference]: With dead ends: 33 [2023-02-14 13:39:13,359 INFO L226 Difference]: Without dead ends: 33 [2023-02-14 13:39:13,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-02-14 13:39:13,360 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 29 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 13:39:13,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 51 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 13:39:13,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-02-14 13:39:13,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2023-02-14 13:39:13,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 25 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-14 13:39:13,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2023-02-14 13:39:13,364 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 13 [2023-02-14 13:39:13,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 13:39:13,365 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-02-14 13:39:13,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-14 13:39:13,365 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2023-02-14 13:39:13,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-14 13:39:13,365 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 13:39:13,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 13:39:13,387 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 [2023-02-14 13:39:13,572 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 [2023-02-14 13:39:13,573 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2023-02-14 13:39:13,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 13:39:13,576 INFO L85 PathProgramCache]: Analyzing trace with hash 328525170, now seen corresponding path program 1 times [2023-02-14 13:39:13,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 13:39:13,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156924138] [2023-02-14 13:39:13,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 13:39:13,577 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 [2023-02-14 13:39:13,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 13:39:13,578 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) [2023-02-14 13:39:13,579 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 [2023-02-14 13:39:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 13:39:13,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-14 13:39:13,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 13:39:13,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 13:39:13,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 13:39:13,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-14 13:39:13,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156924138] [2023-02-14 13:39:13,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [156924138] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 13:39:13,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 13:39:13,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-14 13:39:13,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578413521] [2023-02-14 13:39:13,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 13:39:13,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-14 13:39:13,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-14 13:39:13,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-14 13:39:13,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-14 13:39:13,736 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-14 13:39:13,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 13:39:13,828 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2023-02-14 13:39:13,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-14 13:39:13,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-02-14 13:39:13,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 13:39:13,829 INFO L225 Difference]: With dead ends: 32 [2023-02-14 13:39:13,829 INFO L226 Difference]: Without dead ends: 32 [2023-02-14 13:39:13,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-14 13:39:13,829 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 18 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 13:39:13,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 81 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 13:39:13,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-14 13:39:13,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2023-02-14 13:39:13,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 26 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-14 13:39:13,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2023-02-14 13:39:13,832 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 13 [2023-02-14 13:39:13,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 13:39:13,833 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2023-02-14 13:39:13,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-14 13:39:13,833 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2023-02-14 13:39:13,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-14 13:39:13,833 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 13:39:13,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 13:39:13,848 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 [2023-02-14 13:39:14,046 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 [2023-02-14 13:39:14,046 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2023-02-14 13:39:14,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 13:39:14,048 INFO L85 PathProgramCache]: Analyzing trace with hash 330372212, now seen corresponding path program 1 times [2023-02-14 13:39:14,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 13:39:14,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203288925] [2023-02-14 13:39:14,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 13:39:14,049 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 [2023-02-14 13:39:14,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 13:39:14,061 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) [2023-02-14 13:39:14,063 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 [2023-02-14 13:39:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 13:39:14,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 13:39:14,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 13:39:14,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 13:39:14,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 13:39:14,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-14 13:39:14,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203288925] [2023-02-14 13:39:14,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203288925] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 13:39:14,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 13:39:14,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 13:39:14,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819422071] [2023-02-14 13:39:14,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 13:39:14,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 13:39:14,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-14 13:39:14,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 13:39:14,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 13:39:14,158 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-14 13:39:14,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 13:39:14,175 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2023-02-14 13:39:14,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 13:39:14,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-02-14 13:39:14,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 13:39:14,177 INFO L225 Difference]: With dead ends: 30 [2023-02-14 13:39:14,177 INFO L226 Difference]: Without dead ends: 30 [2023-02-14 13:39:14,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-14 13:39:14,180 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 9 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 13:39:14,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 61 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 13:39:14,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-14 13:39:14,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2023-02-14 13:39:14,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-14 13:39:14,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2023-02-14 13:39:14,186 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 13 [2023-02-14 13:39:14,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 13:39:14,186 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2023-02-14 13:39:14,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-14 13:39:14,190 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2023-02-14 13:39:14,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-14 13:39:14,191 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 13:39:14,191 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 13:39:14,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-02-14 13:39:14,404 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 [2023-02-14 13:39:14,405 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2023-02-14 13:39:14,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 13:39:14,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1790859239, now seen corresponding path program 1 times [2023-02-14 13:39:14,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 13:39:14,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97899124] [2023-02-14 13:39:14,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 13:39:14,406 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 [2023-02-14 13:39:14,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 13:39:14,409 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) [2023-02-14 13:39:14,410 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 [2023-02-14 13:39:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 13:39:14,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 13:39:14,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 13:39:14,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-02-14 13:39:14,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 13:39:14,536 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 13:39:14,536 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-14 13:39:14,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97899124] [2023-02-14 13:39:14,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97899124] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 13:39:14,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 13:39:14,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 13:39:14,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679339381] [2023-02-14 13:39:14,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 13:39:14,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-14 13:39:14,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-14 13:39:14,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-14 13:39:14,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-14 13:39:14,539 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-02-14 13:39:14,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 13:39:14,566 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2023-02-14 13:39:14,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-14 13:39:14,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 14 [2023-02-14 13:39:14,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 13:39:14,567 INFO L225 Difference]: With dead ends: 26 [2023-02-14 13:39:14,567 INFO L226 Difference]: Without dead ends: 26 [2023-02-14 13:39:14,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-14 13:39:14,568 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 13:39:14,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 49 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 13:39:14,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-02-14 13:39:14,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2023-02-14 13:39:14,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-14 13:39:14,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2023-02-14 13:39:14,570 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 14 [2023-02-14 13:39:14,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 13:39:14,572 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2023-02-14 13:39:14,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-02-14 13:39:14,572 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2023-02-14 13:39:14,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-14 13:39:14,573 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 13:39:14,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 13:39:14,582 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 (6)] Ended with exit code 0 [2023-02-14 13:39:14,779 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 [2023-02-14 13:39:14,780 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2023-02-14 13:39:14,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 13:39:14,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1791167080, now seen corresponding path program 1 times [2023-02-14 13:39:14,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 13:39:14,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543328467] [2023-02-14 13:39:14,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 13:39:14,781 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 [2023-02-14 13:39:14,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 13:39:14,782 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) [2023-02-14 13:39:14,785 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 [2023-02-14 13:39:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 13:39:14,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 13:39:14,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 13:39:14,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 13:39:14,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 13:39:14,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-14 13:39:14,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543328467] [2023-02-14 13:39:14,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543328467] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 13:39:14,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 13:39:14,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 13:39:14,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522672919] [2023-02-14 13:39:14,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 13:39:14,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 13:39:14,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-14 13:39:14,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 13:39:14,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 13:39:14,851 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-02-14 13:39:14,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 13:39:14,867 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2023-02-14 13:39:14,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 13:39:14,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 14 [2023-02-14 13:39:14,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 13:39:14,868 INFO L225 Difference]: With dead ends: 29 [2023-02-14 13:39:14,868 INFO L226 Difference]: Without dead ends: 29 [2023-02-14 13:39:14,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-14 13:39:14,869 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 17 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 13:39:14,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 47 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 13:39:14,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-02-14 13:39:14,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2023-02-14 13:39:14,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 21 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-14 13:39:14,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2023-02-14 13:39:14,871 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 14 [2023-02-14 13:39:14,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 13:39:14,871 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2023-02-14 13:39:14,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-02-14 13:39:14,871 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2023-02-14 13:39:14,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-14 13:39:14,872 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 13:39:14,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 13:39:14,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-02-14 13:39:15,078 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 [2023-02-14 13:39:15,079 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2023-02-14 13:39:15,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 13:39:15,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1651911877, now seen corresponding path program 1 times [2023-02-14 13:39:15,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 13:39:15,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [495935544] [2023-02-14 13:39:15,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 13:39:15,080 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 [2023-02-14 13:39:15,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 13:39:15,081 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) [2023-02-14 13:39:15,084 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 [2023-02-14 13:39:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 13:39:15,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 13:39:15,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 13:39:15,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 13:39:15,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 13:39:15,185 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-14 13:39:15,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [495935544] [2023-02-14 13:39:15,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [495935544] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 13:39:15,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 13:39:15,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 13:39:15,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709164889] [2023-02-14 13:39:15,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 13:39:15,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 13:39:15,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-14 13:39:15,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 13:39:15,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 13:39:15,188 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-02-14 13:39:15,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 13:39:15,215 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2023-02-14 13:39:15,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 13:39:15,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 14 [2023-02-14 13:39:15,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 13:39:15,215 INFO L225 Difference]: With dead ends: 28 [2023-02-14 13:39:15,215 INFO L226 Difference]: Without dead ends: 19 [2023-02-14 13:39:15,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 13:39:15,216 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 13:39:15,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 13:39:15,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-02-14 13:39:15,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-02-14 13:39:15,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.0) internal successors, (16), 16 states have internal predecessors, (16), 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) [2023-02-14 13:39:15,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2023-02-14 13:39:15,218 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 14 [2023-02-14 13:39:15,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 13:39:15,218 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2023-02-14 13:39:15,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-02-14 13:39:15,218 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2023-02-14 13:39:15,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-14 13:39:15,218 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 13:39:15,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 13:39:15,227 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 [2023-02-14 13:39:15,424 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 [2023-02-14 13:39:15,424 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2023-02-14 13:39:15,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 13:39:15,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1299359058, now seen corresponding path program 1 times [2023-02-14 13:39:15,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 13:39:15,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073465900] [2023-02-14 13:39:15,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 13:39:15,425 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 [2023-02-14 13:39:15,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 13:39:15,430 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) [2023-02-14 13:39:15,434 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 [2023-02-14 13:39:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 13:39:15,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-14 13:39:15,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 13:39:15,561 WARN L859 $PredicateComparison]: unable to prove that (exists ((~a9~0.base (_ BitVec 32))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| ~a9~0.base) (_ bv0 1)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| ~a9~0.base (_ bv0 1))))) is different from true [2023-02-14 13:39:15,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 13:39:15,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 13:39:15,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-14 13:39:15,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073465900] [2023-02-14 13:39:15,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073465900] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 13:39:15,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 13:39:15,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-02-14 13:39:15,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082899112] [2023-02-14 13:39:15,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 13:39:15,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-14 13:39:15,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-14 13:39:15,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-14 13:39:15,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=32, Unknown=1, NotChecked=10, Total=56 [2023-02-14 13:39:15,577 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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) [2023-02-14 13:39:15,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 13:39:15,638 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2023-02-14 13:39:15,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-14 13:39:15,638 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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 18 [2023-02-14 13:39:15,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 13:39:15,638 INFO L225 Difference]: With dead ends: 18 [2023-02-14 13:39:15,638 INFO L226 Difference]: Without dead ends: 0 [2023-02-14 13:39:15,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=54, Unknown=1, NotChecked=14, Total=90 [2023-02-14 13:39:15,639 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 13:39:15,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 41 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 13 Unchecked, 0.0s Time] [2023-02-14 13:39:15,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-14 13:39:15,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-14 13:39:15,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 13:39:15,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-14 13:39:15,640 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2023-02-14 13:39:15,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 13:39:15,640 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 13:39:15,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 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) [2023-02-14 13:39:15,641 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-14 13:39:15,641 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-14 13:39:15,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (3 of 4 remaining) [2023-02-14 13:39:15,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2023-02-14 13:39:15,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2023-02-14 13:39:15,643 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (0 of 4 remaining) [2023-02-14 13:39:15,667 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 [2023-02-14 13:39:15,850 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 [2023-02-14 13:39:15,852 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 13:39:15,854 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-14 13:39:15,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 01:39:15 BoogieIcfgContainer [2023-02-14 13:39:15,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-14 13:39:15,856 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 13:39:15,856 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 13:39:15,856 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 13:39:15,856 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 01:39:12" (3/4) ... [2023-02-14 13:39:15,858 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-14 13:39:15,862 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2023-02-14 13:39:15,864 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-02-14 13:39:15,864 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-02-14 13:39:15,864 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-14 13:39:15,882 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-14 13:39:15,882 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 13:39:15,882 INFO L158 Benchmark]: Toolchain (without parser) took 4159.32ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 59.0MB in the beginning and 38.8MB in the end (delta: 20.2MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. [2023-02-14 13:39:15,882 INFO L158 Benchmark]: CDTParser took 1.35ms. Allocated memory is still 60.8MB. Free memory is still 37.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 13:39:15,883 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.56ms. Allocated memory is still 83.9MB. Free memory was 58.8MB in the beginning and 52.0MB in the end (delta: 6.8MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2023-02-14 13:39:15,883 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.35ms. Allocated memory is still 83.9MB. Free memory was 52.0MB in the beginning and 50.0MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-14 13:39:15,883 INFO L158 Benchmark]: Boogie Preprocessor took 37.09ms. Allocated memory is still 83.9MB. Free memory was 50.0MB in the beginning and 48.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 13:39:15,883 INFO L158 Benchmark]: RCFGBuilder took 256.90ms. Allocated memory is still 83.9MB. Free memory was 48.4MB in the beginning and 37.0MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-14 13:39:15,883 INFO L158 Benchmark]: TraceAbstraction took 3344.48ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 36.2MB in the beginning and 41.6MB in the end (delta: -5.4MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2023-02-14 13:39:15,883 INFO L158 Benchmark]: Witness Printer took 26.26ms. Allocated memory is still 102.8MB. Free memory was 41.6MB in the beginning and 38.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-14 13:39:15,884 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.35ms. Allocated memory is still 60.8MB. Free memory is still 37.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 445.56ms. Allocated memory is still 83.9MB. Free memory was 58.8MB in the beginning and 52.0MB in the end (delta: 6.8MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.35ms. Allocated memory is still 83.9MB. Free memory was 52.0MB in the beginning and 50.0MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.09ms. Allocated memory is still 83.9MB. Free memory was 50.0MB in the beginning and 48.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 256.90ms. Allocated memory is still 83.9MB. Free memory was 48.4MB in the beginning and 37.0MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3344.48ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 36.2MB in the beginning and 41.6MB in the end (delta: -5.4MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Witness Printer took 26.26ms. Allocated memory is still 102.8MB. Free memory was 41.6MB in the beginning and 38.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 766]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 766]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 766]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 775]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 96 mSDsluCounter, 438 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 13 IncrementalHoareTripleChecker+Unchecked, 275 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 186 IncrementalHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 163 mSDtfsCounter, 186 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=3, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 15 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 103 ConstructedInterpolants, 13 QuantifiedInterpolants, 453 SizeOfPredicates, 3 NumberOfNonLiveVariables, 349 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-02-14 13:39:15,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE