./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test20-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version eb692b52 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_test20-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26c43b0aadda992ac661443360ccdcdee8e428835f1c1ebcc9d46e3a7ce26fc5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 05:58:23,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 05:58:23,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 05:58:23,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 05:58:23,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 05:58:23,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 05:58:23,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 05:58:23,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 05:58:23,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 05:58:23,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 05:58:23,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 05:58:23,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 05:58:23,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 05:58:23,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 05:58:23,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 05:58:23,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 05:58:23,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 05:58:23,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 05:58:23,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 05:58:23,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 05:58:23,684 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 05:58:23,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 05:58:23,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 05:58:23,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 05:58:23,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 05:58:23,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 05:58:23,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 05:58:23,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 05:58:23,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 05:58:23,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 05:58:23,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 05:58:23,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 05:58:23,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 05:58:23,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 05:58:23,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 05:58:23,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 05:58:23,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 05:58:23,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 05:58:23,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 05:58:23,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 05:58:23,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 05:58:23,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 05:58:23,705 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-07-20 05:58:23,738 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 05:58:23,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 05:58:23,741 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 05:58:23,741 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 05:58:23,742 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 05:58:23,742 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 05:58:23,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 05:58:23,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 05:58:23,744 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 05:58:23,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 05:58:23,745 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 05:58:23,745 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-20 05:58:23,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 05:58:23,745 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 05:58:23,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 05:58:23,746 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-20 05:58:23,746 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-20 05:58:23,746 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-20 05:58:23,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 05:58:23,746 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 05:58:23,747 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 05:58:23,747 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 05:58:23,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 05:58:23,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 05:58:23,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 05:58:23,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 05:58:23,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 05:58:23,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 05:58:23,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 05:58:23,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 05:58:23,749 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26c43b0aadda992ac661443360ccdcdee8e428835f1c1ebcc9d46e3a7ce26fc5 [2022-07-20 05:58:24,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 05:58:24,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 05:58:24,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 05:58:24,030 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 05:58:24,031 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 05:58:24,032 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test20-1.i [2022-07-20 05:58:24,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40777f62b/370e81ad86174c33aca044c5ab3ab45c/FLAG683fa9759 [2022-07-20 05:58:24,584 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 05:58:24,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test20-1.i [2022-07-20 05:58:24,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40777f62b/370e81ad86174c33aca044c5ab3ab45c/FLAG683fa9759 [2022-07-20 05:58:24,895 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40777f62b/370e81ad86174c33aca044c5ab3ab45c [2022-07-20 05:58:24,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 05:58:24,900 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 05:58:24,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 05:58:24,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 05:58:24,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 05:58:24,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:58:24" (1/1) ... [2022-07-20 05:58:24,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b3d2ea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:58:24, skipping insertion in model container [2022-07-20 05:58:24,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:58:24" (1/1) ... [2022-07-20 05:58:24,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 05:58:24,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 05:58:25,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 05:58:25,317 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) [2022-07-20 05:58:25,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@38061b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:58:25, skipping insertion in model container [2022-07-20 05:58:25,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 05:58:25,319 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-07-20 05:58:25,322 INFO L158 Benchmark]: Toolchain (without parser) took 420.73ms. Allocated memory is still 98.6MB. Free memory was 65.2MB in the beginning and 69.0MB in the end (delta: -3.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-20 05:58:25,322 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 05:58:25,323 INFO L158 Benchmark]: CACSL2BoogieTranslator took 418.19ms. Allocated memory is still 98.6MB. Free memory was 64.9MB in the beginning and 69.0MB in the end (delta: -4.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-20 05:58:25,325 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 418.19ms. Allocated memory is still 98.6MB. Free memory was 64.9MB in the beginning and 69.0MB in the end (delta: -4.0MB). Peak memory consumption was 6.3MB. 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_test20-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26c43b0aadda992ac661443360ccdcdee8e428835f1c1ebcc9d46e3a7ce26fc5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 05:58:27,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 05:58:27,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 05:58:27,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 05:58:27,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 05:58:27,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 05:58:27,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 05:58:27,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 05:58:27,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 05:58:27,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 05:58:27,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 05:58:27,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 05:58:27,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 05:58:27,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 05:58:27,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 05:58:27,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 05:58:27,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 05:58:27,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 05:58:27,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 05:58:27,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 05:58:27,207 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 05:58:27,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 05:58:27,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 05:58:27,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 05:58:27,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 05:58:27,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 05:58:27,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 05:58:27,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 05:58:27,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 05:58:27,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 05:58:27,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 05:58:27,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 05:58:27,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 05:58:27,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 05:58:27,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 05:58:27,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 05:58:27,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 05:58:27,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 05:58:27,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 05:58:27,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 05:58:27,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 05:58:27,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 05:58:27,232 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-07-20 05:58:27,265 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 05:58:27,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 05:58:27,266 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 05:58:27,266 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 05:58:27,267 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 05:58:27,267 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 05:58:27,268 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 05:58:27,268 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 05:58:27,268 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 05:58:27,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 05:58:27,269 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 05:58:27,269 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-20 05:58:27,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 05:58:27,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 05:58:27,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 05:58:27,270 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-07-20 05:58:27,270 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-07-20 05:58:27,270 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-07-20 05:58:27,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 05:58:27,271 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 05:58:27,271 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 05:58:27,271 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 05:58:27,271 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 05:58:27,271 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 05:58:27,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 05:58:27,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 05:58:27,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 05:58:27,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 05:58:27,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 05:58:27,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 05:58:27,273 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 05:58:27,273 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 05:58:27,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 05:58:27,273 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26c43b0aadda992ac661443360ccdcdee8e428835f1c1ebcc9d46e3a7ce26fc5 [2022-07-20 05:58:27,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 05:58:27,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 05:58:27,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 05:58:27,577 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 05:58:27,578 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 05:58:27,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test20-1.i [2022-07-20 05:58:27,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/339f62fc6/ee387852839e40e1862a7da29851d333/FLAGc7be6255a [2022-07-20 05:58:28,185 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 05:58:28,189 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test20-1.i [2022-07-20 05:58:28,203 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/339f62fc6/ee387852839e40e1862a7da29851d333/FLAGc7be6255a [2022-07-20 05:58:28,645 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/339f62fc6/ee387852839e40e1862a7da29851d333 [2022-07-20 05:58:28,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 05:58:28,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 05:58:28,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 05:58:28,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 05:58:28,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 05:58:28,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:58:28" (1/1) ... [2022-07-20 05:58:28,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cedeea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:58:28, skipping insertion in model container [2022-07-20 05:58:28,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:58:28" (1/1) ... [2022-07-20 05:58:28,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 05:58:28,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 05:58:29,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 05:58:29,124 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 05:58:29,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 05:58:29,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 05:58:29,216 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 05:58:29,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 05:58:29,299 INFO L208 MainTranslator]: Completed translation [2022-07-20 05:58:29,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:58:29 WrapperNode [2022-07-20 05:58:29,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 05:58:29,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 05:58:29,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 05:58:29,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 05:58:29,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:58:29" (1/1) ... [2022-07-20 05:58:29,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:58:29" (1/1) ... [2022-07-20 05:58:29,349 INFO L137 Inliner]: procedures = 169, calls = 70, calls flagged for inlining = 23, calls inlined = 5, statements flattened = 21 [2022-07-20 05:58:29,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 05:58:29,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 05:58:29,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 05:58:29,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 05:58:29,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:58:29" (1/1) ... [2022-07-20 05:58:29,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:58:29" (1/1) ... [2022-07-20 05:58:29,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:58:29" (1/1) ... [2022-07-20 05:58:29,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:58:29" (1/1) ... [2022-07-20 05:58:29,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:58:29" (1/1) ... [2022-07-20 05:58:29,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:58:29" (1/1) ... [2022-07-20 05:58:29,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:58:29" (1/1) ... [2022-07-20 05:58:29,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 05:58:29,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 05:58:29,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 05:58:29,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 05:58:29,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:58:29" (1/1) ... [2022-07-20 05:58:29,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 05:58:29,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 05:58:29,413 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) [2022-07-20 05:58:29,421 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 [2022-07-20 05:58:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 05:58:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 05:58:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 05:58:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 05:58:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 05:58:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 05:58:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 05:58:29,538 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 05:58:29,540 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 05:58:29,680 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 05:58:29,685 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 05:58:29,685 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 05:58:29,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:58:29 BoogieIcfgContainer [2022-07-20 05:58:29,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 05:58:29,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 05:58:29,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 05:58:29,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 05:58:29,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:58:28" (1/3) ... [2022-07-20 05:58:29,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc2851f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:58:29, skipping insertion in model container [2022-07-20 05:58:29,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:58:29" (2/3) ... [2022-07-20 05:58:29,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc2851f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:58:29, skipping insertion in model container [2022-07-20 05:58:29,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:58:29" (3/3) ... [2022-07-20 05:58:29,714 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test20-1.i [2022-07-20 05:58:29,740 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 05:58:29,741 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 05:58:29,800 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 05:58:29,818 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=FINITE_AUTOMATA, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@76b76cfc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@368b09e4 [2022-07-20 05:58:29,818 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 05:58:29,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 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) [2022-07-20 05:58:29,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-20 05:58:29,838 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:58:29,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 05:58:29,839 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 05:58:29,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:58:29,847 INFO L85 PathProgramCache]: Analyzing trace with hash 34762974, now seen corresponding path program 1 times [2022-07-20 05:58:29,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 05:58:29,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361138942] [2022-07-20 05:58:29,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:58:29,861 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 05:58:29,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 05:58:29,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 05:58:29,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 05:58:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:58:29,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 05:58:29,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 05:58:30,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:58:30,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 05:58:30,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 05:58:30,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361138942] [2022-07-20 05:58:30,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361138942] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:58:30,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:58:30,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 05:58:30,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140548645] [2022-07-20 05:58:30,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:58:30,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 05:58:30,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 05:58:30,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 05:58:30,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 05:58:30,108 INFO L87 Difference]: Start difference. First operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 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, 5 states have (on average 2.0) 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) [2022-07-20 05:58:30,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:58:30,153 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2022-07-20 05:58:30,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 05:58:30,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) 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 [2022-07-20 05:58:30,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:58:30,168 INFO L225 Difference]: With dead ends: 27 [2022-07-20 05:58:30,168 INFO L226 Difference]: Without dead ends: 23 [2022-07-20 05:58:30,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 05:58:30,177 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 05:58:30,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 69 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 05:58:30,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-07-20 05:58:30,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2022-07-20 05:58:30,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 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) [2022-07-20 05:58:30,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-07-20 05:58:30,217 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 12 [2022-07-20 05:58:30,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:58:30,217 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-07-20 05:58:30,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) 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) [2022-07-20 05:58:30,218 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-07-20 05:58:30,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-20 05:58:30,219 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:58:30,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 05:58:30,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-20 05:58:30,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 05:58:30,436 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 05:58:30,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:58:30,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1777573309, now seen corresponding path program 1 times [2022-07-20 05:58:30,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 05:58:30,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213809262] [2022-07-20 05:58:30,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:58:30,443 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 05:58:30,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 05:58:30,444 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 05:58:30,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 05:58:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 05:58:30,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 05:58:30,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 05:58:30,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 05:58:30,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 05:58:30,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 05:58:30,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213809262] [2022-07-20 05:58:30,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1213809262] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 05:58:30,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 05:58:30,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 05:58:30,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108318194] [2022-07-20 05:58:30,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 05:58:30,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 05:58:30,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 05:58:30,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 05:58:30,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 05:58:30,565 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 05:58:30,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 05:58:30,593 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-07-20 05:58:30,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 05:58:30,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-07-20 05:58:30,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 05:58:30,597 INFO L225 Difference]: With dead ends: 22 [2022-07-20 05:58:30,597 INFO L226 Difference]: Without dead ends: 14 [2022-07-20 05:58:30,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 05:58:30,603 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 05:58:30,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 38 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 05:58:30,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-07-20 05:58:30,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-07-20 05:58:30,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.0) internal successors, (11), 11 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) [2022-07-20 05:58:30,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2022-07-20 05:58:30,613 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 12 [2022-07-20 05:58:30,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 05:58:30,614 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2022-07-20 05:58:30,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-20 05:58:30,614 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2022-07-20 05:58:30,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-20 05:58:30,614 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 05:58:30,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 05:58:30,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 05:58:30,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 05:58:30,823 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-07-20 05:58:30,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 05:58:30,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1073836985, now seen corresponding path program 1 times [2022-07-20 05:58:30,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 05:58:30,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478182397] [2022-07-20 05:58:30,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 05:58:30,825 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 05:58:30,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 05:58:30,827 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 05:58:30,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 05:58:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-20 05:58:30,876 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-20 05:58:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-20 05:58:30,922 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-20 05:58:30,922 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-20 05:58:30,923 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 1 remaining) [2022-07-20 05:58:30,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 05:58:31,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 05:58:31,141 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-20 05:58:31,144 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-20 05:58:31,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:58:31 BoogieIcfgContainer [2022-07-20 05:58:31,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-20 05:58:31,172 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-20 05:58:31,172 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-20 05:58:31,172 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-20 05:58:31,173 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:58:29" (3/4) ... [2022-07-20 05:58:31,176 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-20 05:58:31,177 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-20 05:58:31,177 INFO L158 Benchmark]: Toolchain (without parser) took 2528.42ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 26.9MB in the beginning and 32.8MB in the end (delta: -6.0MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2022-07-20 05:58:31,178 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 52.4MB. Free memory was 33.5MB in the beginning and 33.4MB in the end (delta: 60.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 05:58:31,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 656.16ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 26.6MB in the beginning and 45.0MB in the end (delta: -18.3MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2022-07-20 05:58:31,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.88ms. Allocated memory is still 62.9MB. Free memory was 45.0MB in the beginning and 42.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-20 05:58:31,179 INFO L158 Benchmark]: Boogie Preprocessor took 29.29ms. Allocated memory is still 62.9MB. Free memory was 42.9MB in the beginning and 41.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 05:58:31,179 INFO L158 Benchmark]: RCFGBuilder took 306.96ms. Allocated memory is still 62.9MB. Free memory was 41.6MB in the beginning and 31.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-20 05:58:31,179 INFO L158 Benchmark]: TraceAbstraction took 1482.52ms. Allocated memory is still 62.9MB. Free memory was 31.0MB in the beginning and 33.1MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 05:58:31,180 INFO L158 Benchmark]: Witness Printer took 4.70ms. Allocated memory is still 62.9MB. Free memory was 33.1MB in the beginning and 32.8MB in the end (delta: 316.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-20 05:58:31,182 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 52.4MB. Free memory was 33.5MB in the beginning and 33.4MB in the end (delta: 60.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 656.16ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 26.6MB in the beginning and 45.0MB in the end (delta: -18.3MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.88ms. Allocated memory is still 62.9MB. Free memory was 45.0MB in the beginning and 42.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.29ms. Allocated memory is still 62.9MB. Free memory was 42.9MB in the beginning and 41.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 306.96ms. Allocated memory is still 62.9MB. Free memory was 41.6MB in the beginning and 31.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1482.52ms. Allocated memory is still 62.9MB. Free memory was 31.0MB in the beginning and 33.1MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.70ms. Allocated memory is still 62.9MB. Free memory was 33.1MB in the beginning and 32.8MB in the end (delta: 316.2kB). Peak memory consumption was 2.1MB. 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 - UnprovableResult [Line: 781]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 781. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L761] struct ldv_device *saved_device_20; VAL [ldv_global_msg_list={1:0}, saved_device_20={0:0}] [L782] CALL entry_point() [L778] CALL alloc_20() [L772] CALL, EXPR ldv_malloc(sizeof(struct A20)) VAL [\old(size)=16, ldv_global_msg_list={1:0}, saved_device_20={0:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L772] RET, EXPR ldv_malloc(sizeof(struct A20)) VAL [ldv_global_msg_list={1:0}, ldv_malloc(sizeof(struct A20))={2:0}, saved_device_20={0:0}] [L772] struct A20 *p = (struct A20*)ldv_malloc(sizeof(struct A20)); [L773] COND TRUE \read(*p) [L774] CALL ldv_register_device(&p->dev) [L763] saved_device_20 = dev VAL [dev={2:4}, dev={2:4}, ldv_global_msg_list={1:0}, saved_device_20={2:4}] [L774] RET ldv_register_device(&p->dev) [L778] RET alloc_20() [L779] saved_device_20 = 0 VAL [ldv_global_msg_list={1:0}, saved_device_20={0:0}] [L782] RET entry_point() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 107 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 69 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 38 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=1, InterpolantAutomatonStates: 9, 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, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 82 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-20 05:58:31,221 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: UNKNOWN: Overapproximated counterexample