./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 20ed64ec 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_test7-2.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 2d51915f2a44f0762761fec81bdd888a975b61fb .................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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_test7-2.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 2d51915f2a44f0762761fec81bdd888a975b61fb ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:25:20,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:25:20,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:25:20,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:25:20,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:25:20,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:25:20,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:25:20,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:25:20,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:25:20,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:25:20,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:25:20,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:25:20,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:25:20,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:25:20,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:25:20,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:25:20,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:25:20,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:25:20,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:25:20,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:25:20,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:25:20,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:25:20,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:25:20,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:25:20,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:25:20,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:25:20,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:25:20,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:25:20,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:25:20,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:25:20,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:25:20,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:25:20,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:25:20,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:25:20,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:25:20,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:25:20,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:25:20,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:25:20,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:25:20,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:25:20,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:25:20,162 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:25:20,212 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:25:20,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:25:20,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:25:20,213 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:25:20,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:25:20,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:25:20,215 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:25:20,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:25:20,215 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:25:20,215 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:25:20,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:25:20,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:25:20,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:25:20,216 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:25:20,216 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:25:20,216 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:25:20,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:25:20,217 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:25:20,217 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:25:20,217 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:25:20,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:25:20,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:25:20,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:25:20,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:25:20,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:25:20,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:25:20,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:25:20,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:25:20,218 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:25:20,218 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d51915f2a44f0762761fec81bdd888a975b61fb [2021-08-27 06:25:20,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:25:20,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:25:20,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:25:20,501 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:25:20,501 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:25:20,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test7-2.i [2021-08-27 06:25:20,553 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a93d5ec3b/3a4b654136f3417698746406640c39ab/FLAG898cd61cc [2021-08-27 06:25:20,999 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:25:21,000 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test7-2.i [2021-08-27 06:25:21,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a93d5ec3b/3a4b654136f3417698746406640c39ab/FLAG898cd61cc [2021-08-27 06:25:21,354 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a93d5ec3b/3a4b654136f3417698746406640c39ab [2021-08-27 06:25:21,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:25:21,357 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:25:21,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:25:21,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:25:21,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:25:21,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:25:21" (1/1) ... [2021-08-27 06:25:21,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4683e8b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:21, skipping insertion in model container [2021-08-27 06:25:21,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:25:21" (1/1) ... [2021-08-27 06:25:21,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:25:21,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:25:21,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:25:21,740 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-08-27 06:25:21,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4fc40f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:21, skipping insertion in model container [2021-08-27 06:25:21,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:25:21,742 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:25:21,744 INFO L168 Benchmark]: Toolchain (without parser) took 385.23 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 28.0 MB in the beginning and 47.0 MB in the end (delta: -19.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:25:21,745 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 52.4 MB. Free memory was 34.0 MB in the beginning and 34.0 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:25:21,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.81 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 27.8 MB in the beginning and 47.3 MB in the end (delta: -19.4 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:25:21,748 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 52.4 MB. Free memory was 34.0 MB in the beginning and 34.0 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 368.81 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 27.8 MB in the beginning and 47.3 MB in the end (delta: -19.4 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:25:23,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:25:23,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:25:23,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:25:23,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:25:23,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:25:23,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:25:23,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:25:23,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:25:23,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:25:23,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:25:23,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:25:23,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:25:23,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:25:23,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:25:23,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:25:23,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:25:23,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:25:23,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:25:23,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:25:23,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:25:23,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:25:23,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:25:23,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:25:23,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:25:23,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:25:23,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:25:23,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:25:23,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:25:23,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:25:23,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:25:23,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:25:23,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:25:23,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:25:23,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:25:23,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:25:23,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:25:23,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:25:23,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:25:23,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:25:23,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:25:23,184 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:25:23,209 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:25:23,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:25:23,210 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:25:23,210 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:25:23,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:25:23,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:25:23,211 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:25:23,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:25:23,212 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:25:23,212 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:25:23,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:25:23,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:25:23,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:25:23,212 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:25:23,213 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:25:23,213 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:25:23,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:25:23,213 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:25:23,213 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:25:23,213 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:25:23,213 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:25:23,213 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:25:23,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:25:23,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:25:23,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:25:23,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:25:23,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:25:23,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:25:23,214 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:25:23,214 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:25:23,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:25:23,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:25:23,214 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d51915f2a44f0762761fec81bdd888a975b61fb [2021-08-27 06:25:23,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:25:23,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:25:23,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:25:23,487 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:25:23,488 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:25:23,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test7-2.i [2021-08-27 06:25:23,534 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e2cb6255/a13544b66010482da3334041120c4971/FLAGebaf8bf74 [2021-08-27 06:25:23,904 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:25:23,905 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test7-2.i [2021-08-27 06:25:23,918 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e2cb6255/a13544b66010482da3334041120c4971/FLAGebaf8bf74 [2021-08-27 06:25:24,302 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e2cb6255/a13544b66010482da3334041120c4971 [2021-08-27 06:25:24,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:25:24,305 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:25:24,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:25:24,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:25:24,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:25:24,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:25:24" (1/1) ... [2021-08-27 06:25:24,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f6a1f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:24, skipping insertion in model container [2021-08-27 06:25:24,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:25:24" (1/1) ... [2021-08-27 06:25:24,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:25:24,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:25:24,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:25:24,651 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:25:24,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:25:24,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:25:24,707 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:25:24,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:25:24,786 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:25:24,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:24 WrapperNode [2021-08-27 06:25:24,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:25:24,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:25:24,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:25:24,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:25:24,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:24" (1/1) ... [2021-08-27 06:25:24,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:24" (1/1) ... [2021-08-27 06:25:24,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:24" (1/1) ... [2021-08-27 06:25:24,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:24" (1/1) ... [2021-08-27 06:25:24,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:24" (1/1) ... [2021-08-27 06:25:24,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:24" (1/1) ... [2021-08-27 06:25:24,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:24" (1/1) ... [2021-08-27 06:25:24,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:25:24,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:25:24,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:25:24,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:25:24,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:24" (1/1) ... [2021-08-27 06:25:24,914 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:25:24,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:25:24,938 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) [2021-08-27 06:25:24,946 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 [2021-08-27 06:25:24,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:25:24,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:25:24,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:25:24,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:25:24,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:25:24,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:25:24,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:25:24,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:25:24,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:25:24,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:25:24,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:25:24,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:25:24,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:25:24,977 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:25:24,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:25:24,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:25:24,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:25:24,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:25:24,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:25:24,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:25:24,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:25:24,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:25:24,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:25:24,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:25:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:25:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:25:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:25:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:25:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:25:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:25:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:25:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:25:24,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:25:24,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:25:24,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:25:24,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:25:24,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:25:24,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:25:24,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:25:24,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:25:24,981 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:25:24,981 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:25:24,981 INFO L138 BoogieDeclarations]: Found implementation of procedure f6 [2021-08-27 06:25:24,982 INFO L138 BoogieDeclarations]: Found implementation of procedure g6 [2021-08-27 06:25:24,982 INFO L138 BoogieDeclarations]: Found implementation of procedure probe1_6 [2021-08-27 06:25:24,982 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_6 [2021-08-27 06:25:24,982 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:25:24,982 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:25:24,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:25:24,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:25:24,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:25:24,983 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:25:24,983 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:25:24,983 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:25:24,983 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:25:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:25:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:25:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:25:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:25:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:25:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:25:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:25:24,985 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:25:24,985 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:25:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:25:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:25:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:25:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:25:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:25:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:25:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:25:24,986 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:25:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:25:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:25:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:25:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:25:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:25:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:25:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:25:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:25:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:25:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:25:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:25:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:25:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:25:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:25:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:25:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:25:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:25:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:25:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:25:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:25:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:25:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:25:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:25:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:25:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:25:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:25:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:25:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:25:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:25:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:25:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:25:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:25:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:25:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:25:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:25:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:25:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:25:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:25:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:25:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:25:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:25:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:25:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:25:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:25:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:25:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:25:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:25:24,991 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:25:24,991 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:25:24,991 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:25:24,991 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:25:24,992 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:25:24,993 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:25:24,993 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:25:24,994 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:25:24,994 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:25:24,995 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:25:24,995 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:25:24,995 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:25:24,995 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:25:24,996 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:25:25,001 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:25:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:25:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:25:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:25:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:25:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:25:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:25:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:25:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:25:25,008 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:25:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:25:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure f6 [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure g6 [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure probe1_6 [2021-08-27 06:25:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_6 [2021-08-27 06:25:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:25:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:25:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:25:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:25:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:25:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:25:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:25:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:25:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:25:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:25:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:25:25,499 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:25:25,780 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:25:26,000 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:25:26,001 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:25:26,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:25:26 BoogieIcfgContainer [2021-08-27 06:25:26,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:25:26,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:25:26,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:25:26,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:25:26,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:25:24" (1/3) ... [2021-08-27 06:25:26,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198d2c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:25:26, skipping insertion in model container [2021-08-27 06:25:26,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:24" (2/3) ... [2021-08-27 06:25:26,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198d2c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:25:26, skipping insertion in model container [2021-08-27 06:25:26,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:25:26" (3/3) ... [2021-08-27 06:25:26,008 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test7-2.i [2021-08-27 06:25:26,012 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:25:26,012 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2021-08-27 06:25:26,040 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:25:26,044 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 06:25:26,044 INFO L340 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2021-08-27 06:25:26,057 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 75 states have (on average 1.5066666666666666) internal successors, (113), 104 states have internal predecessors, (113), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-08-27 06:25:26,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:25:26,063 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:25:26,063 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:25:26,064 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting disconnect_6Err0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:25:26,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:25:26,070 INFO L82 PathProgramCache]: Analyzing trace with hash -667181762, now seen corresponding path program 1 times [2021-08-27 06:25:26,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:25:26,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131232449] [2021-08-27 06:25:26,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:25:26,091 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:25:26,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:25:26,096 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) [2021-08-27 06:25:26,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-27 06:25:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:25:26,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:25:26,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:25:26,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:26,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:25:26,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:26,572 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:25:26,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131232449] [2021-08-27 06:25:26,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131232449] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:25:26,573 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:25:26,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:25:26,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993042215] [2021-08-27 06:25:26,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:25:26,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:25:26,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:25:26,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:25:26,591 INFO L87 Difference]: Start difference. First operand has 133 states, 75 states have (on average 1.5066666666666666) internal successors, (113), 104 states have internal predecessors, (113), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:25:26,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:25:26,652 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2021-08-27 06:25:26,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:25:26,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2021-08-27 06:25:26,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:25:26,661 INFO L225 Difference]: With dead ends: 84 [2021-08-27 06:25:26,661 INFO L226 Difference]: Without dead ends: 81 [2021-08-27 06:25:26,662 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.5ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:25:26,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-08-27 06:25:26,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 64. [2021-08-27 06:25:26,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 48 states have internal predecessors, (52), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-08-27 06:25:26,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2021-08-27 06:25:26,694 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 23 [2021-08-27 06:25:26,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:25:26,695 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2021-08-27 06:25:26,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:25:26,695 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2021-08-27 06:25:26,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:25:26,696 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:25:26,696 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:25:26,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-27 06:25:26,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:25:26,904 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:25:26,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:25:26,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1260306412, now seen corresponding path program 1 times [2021-08-27 06:25:26,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:25:26,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [226328333] [2021-08-27 06:25:26,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:25:26,905 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:25:26,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:25:26,908 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) [2021-08-27 06:25:26,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-27 06:25:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:25:27,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:25:27,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:25:27,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:27,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:25:27,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:27,238 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:25:27,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [226328333] [2021-08-27 06:25:27,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [226328333] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:25:27,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:25:27,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:25:27,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992093652] [2021-08-27 06:25:27,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:25:27,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:25:27,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:25:27,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:25:27,241 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:25:27,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:25:27,260 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2021-08-27 06:25:27,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:25:27,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-08-27 06:25:27,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:25:27,261 INFO L225 Difference]: With dead ends: 63 [2021-08-27 06:25:27,261 INFO L226 Difference]: Without dead ends: 63 [2021-08-27 06:25:27,262 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.9ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:25:27,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-08-27 06:25:27,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-08-27 06:25:27,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 47 states have internal predecessors, (51), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-08-27 06:25:27,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2021-08-27 06:25:27,265 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 23 [2021-08-27 06:25:27,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:25:27,266 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2021-08-27 06:25:27,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:25:27,266 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2021-08-27 06:25:27,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-27 06:25:27,266 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:25:27,266 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:25:27,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-27 06:25:27,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:25:27,471 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting disconnect_6Err0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:25:27,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:25:27,471 INFO L82 PathProgramCache]: Analyzing trace with hash -538099043, now seen corresponding path program 1 times [2021-08-27 06:25:27,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:25:27,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457645281] [2021-08-27 06:25:27,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:25:27,472 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:25:27,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:25:27,473 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) [2021-08-27 06:25:27,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-27 06:25:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:25:27,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 06:25:27,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:25:27,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:27,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:25:27,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:27,861 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:25:27,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457645281] [2021-08-27 06:25:27,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457645281] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:25:27,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:25:27,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-08-27 06:25:27,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868011598] [2021-08-27 06:25:27,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:25:27,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:25:27,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:25:27,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:25:27,866 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 06:25:27,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:25:27,931 INFO L93 Difference]: Finished difference Result 77 states and 81 transitions. [2021-08-27 06:25:27,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:25:27,934 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 23 [2021-08-27 06:25:27,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:25:27,936 INFO L225 Difference]: With dead ends: 77 [2021-08-27 06:25:27,936 INFO L226 Difference]: Without dead ends: 77 [2021-08-27 06:25:27,937 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 65.8ms TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-08-27 06:25:27,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-08-27 06:25:27,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 67. [2021-08-27 06:25:27,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 40 states have (on average 1.35) internal successors, (54), 50 states have internal predecessors, (54), 8 states have call successors, (8), 8 states have call predecessors, (8), 9 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2021-08-27 06:25:27,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 71 transitions. [2021-08-27 06:25:27,953 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 71 transitions. Word has length 23 [2021-08-27 06:25:27,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:25:27,953 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 71 transitions. [2021-08-27 06:25:27,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-08-27 06:25:27,953 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 71 transitions. [2021-08-27 06:25:27,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-27 06:25:27,954 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:25:27,954 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:25:27,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-27 06:25:28,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:25:28,165 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:25:28,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:25:28,165 INFO L82 PathProgramCache]: Analyzing trace with hash -414792645, now seen corresponding path program 1 times [2021-08-27 06:25:28,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:25:28,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105956472] [2021-08-27 06:25:28,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:25:28,166 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:25:28,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:25:28,167 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:25:28,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-27 06:25:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:25:28,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:25:28,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:25:28,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:28,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:25:28,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:28,728 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:25:28,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105956472] [2021-08-27 06:25:28,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [105956472] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:25:28,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:25:28,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2021-08-27 06:25:28,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484331206] [2021-08-27 06:25:28,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:25:28,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:25:28,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:25:28,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:25:28,730 INFO L87 Difference]: Start difference. First operand 67 states and 71 transitions. Second operand has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:25:28,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:25:28,969 INFO L93 Difference]: Finished difference Result 111 states and 118 transitions. [2021-08-27 06:25:28,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:25:28,970 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 24 [2021-08-27 06:25:28,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:25:28,970 INFO L225 Difference]: With dead ends: 111 [2021-08-27 06:25:28,970 INFO L226 Difference]: Without dead ends: 111 [2021-08-27 06:25:28,971 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 83.2ms TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:25:28,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-08-27 06:25:28,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 66. [2021-08-27 06:25:28,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 40 states have (on average 1.325) internal successors, (53), 49 states have internal predecessors, (53), 8 states have call successors, (8), 8 states have call predecessors, (8), 9 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2021-08-27 06:25:28,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2021-08-27 06:25:28,974 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 24 [2021-08-27 06:25:28,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:25:28,974 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2021-08-27 06:25:28,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:25:28,974 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2021-08-27 06:25:28,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-27 06:25:28,975 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:25:28,975 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:25:28,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-27 06:25:29,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:25:29,176 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:25:29,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:25:29,176 INFO L82 PathProgramCache]: Analyzing trace with hash 26330358, now seen corresponding path program 1 times [2021-08-27 06:25:29,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:25:29,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79825565] [2021-08-27 06:25:29,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:25:29,177 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:25:29,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:25:29,177 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:25:29,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-27 06:25:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:25:29,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:25:29,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:25:29,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:25:29,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:29,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:25:29,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:29,569 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:25:29,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79825565] [2021-08-27 06:25:29,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79825565] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:25:29,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:25:29,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2021-08-27 06:25:29,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232513815] [2021-08-27 06:25:29,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 06:25:29,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:25:29,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 06:25:29,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:25:29,571 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:25:29,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:25:29,679 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2021-08-27 06:25:29,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 06:25:29,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2021-08-27 06:25:29,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:25:29,680 INFO L225 Difference]: With dead ends: 86 [2021-08-27 06:25:29,680 INFO L226 Difference]: Without dead ends: 86 [2021-08-27 06:25:29,681 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 25.9ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-27 06:25:29,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-08-27 06:25:29,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 75. [2021-08-27 06:25:29,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 56 states have internal predecessors, (62), 10 states have call successors, (10), 8 states have call predecessors, (10), 9 states have return successors, (11), 11 states have call predecessors, (11), 9 states have call successors, (11) [2021-08-27 06:25:29,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 83 transitions. [2021-08-27 06:25:29,684 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 83 transitions. Word has length 25 [2021-08-27 06:25:29,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:25:29,684 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 83 transitions. [2021-08-27 06:25:29,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-08-27 06:25:29,684 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 83 transitions. [2021-08-27 06:25:29,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-27 06:25:29,685 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:25:29,685 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:25:29,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-27 06:25:29,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:25:29,893 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-08-27 06:25:29,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:25:29,893 INFO L82 PathProgramCache]: Analyzing trace with hash 498121534, now seen corresponding path program 1 times [2021-08-27 06:25:29,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:25:29,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093680930] [2021-08-27 06:25:29,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:25:29,893 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:25:29,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:25:29,894 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:25:29,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-27 06:25:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:25:30,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 06:25:30,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:25:30,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:30,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:25:34,374 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:25:34,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093680930] [2021-08-27 06:25:34,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:25:34,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [828213397] [2021-08-27 06:25:34,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:25:34,375 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-27 06:25:34,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-27 06:25:34,384 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-27 06:25:34,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-08-27 06:25:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:25:34,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 06:25:34,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:25:34,707 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:25:34,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 29 [2021-08-27 06:25:39,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:39,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:25:43,143 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:25:43,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27681965] [2021-08-27 06:25:43,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:25:43,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 06:25:43,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:25:43,161 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 06:25:43,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-27 06:25:43,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:25:43,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 06:25:43,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:25:43,433 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-08-27 06:25:43,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-08-27 06:25:45,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:25:45,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:25:49,871 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-27 06:25:49,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:25:49,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-27 06:25:49,872 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-27 06:25:49,872 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-27 06:25:49,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:25:49,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:25:49,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:25:49,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:25:49,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:25:49,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:25:49,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:25:49,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:25:49,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:25:49,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:25:49,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:25:49,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:25:49,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:25:49,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:25:49,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:25:49,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:25:49,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:25:49,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:25:49,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:25:49,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:25:49,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:25:49,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:25:49,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:25:49,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:25:49,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:25:49,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:25:49,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:25:49,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:25:49,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:25:49,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:25:49,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:25:49,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:25:49,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:25:49,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:25:49,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:25:49,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:25:49,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:25:49,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:25:49,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:25:49,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:25:49,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:25:49,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:25:49,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:25:49,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:49,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:49,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:49,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:49,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:49,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:49,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:25:49,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:25:49,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:25:49,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:25:49,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:25:49,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:25:49,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:25:49,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:25:49,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:49,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:49,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:49,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:49,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:49,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:49,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:25:49,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:25:49,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:25:49,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:25:49,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:25:49,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:25:49,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:25:49,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:25:49,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err0REQUIRES_VIOLATION [2021-08-27 06:25:49,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err1REQUIRES_VIOLATION [2021-08-27 06:25:49,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:49,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:49,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:49,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err0REQUIRES_VIOLATION [2021-08-27 06:25:49,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err1REQUIRES_VIOLATION [2021-08-27 06:25:49,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:49,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:49,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:25:49,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-27 06:25:50,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-08-27 06:25:50,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-08-27 06:25:50,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:25:50,512 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:25:50,514 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-27 06:25:50,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:25:50 BoogieIcfgContainer [2021-08-27 06:25:50,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:25:50,523 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:25:50,523 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:25:50,523 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:25:50,523 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:25:26" (3/4) ... [2021-08-27 06:25:50,526 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:25:50,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:25:50,527 INFO L168 Benchmark]: Toolchain (without parser) took 26221.68 ms. Allocated memory was 54.5 MB in the beginning and 157.3 MB in the end (delta: 102.8 MB). Free memory was 31.5 MB in the beginning and 73.6 MB in the end (delta: -42.2 MB). Peak memory consumption was 61.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:25:50,527 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 54.5 MB. Free memory was 36.1 MB in the beginning and 36.1 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:25:50,528 INFO L168 Benchmark]: CACSL2BoogieTranslator took 481.55 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 31.2 MB in the beginning and 39.3 MB in the end (delta: -8.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:25:50,528 INFO L168 Benchmark]: Boogie Preprocessor took 120.35 ms. Allocated memory is still 73.4 MB. Free memory was 39.3 MB in the beginning and 52.5 MB in the end (delta: -13.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:25:50,528 INFO L168 Benchmark]: RCFGBuilder took 1093.35 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 52.5 MB in the beginning and 47.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. [2021-08-27 06:25:50,529 INFO L168 Benchmark]: TraceAbstraction took 24518.63 ms. Allocated memory was 88.1 MB in the beginning and 157.3 MB in the end (delta: 69.2 MB). Free memory was 47.0 MB in the beginning and 74.7 MB in the end (delta: -27.7 MB). Peak memory consumption was 41.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:25:50,529 INFO L168 Benchmark]: Witness Printer took 3.51 ms. Allocated memory is still 157.3 MB. Free memory was 74.7 MB in the beginning and 73.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:25:50,531 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 54.5 MB. Free memory was 36.1 MB in the beginning and 36.1 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 481.55 ms. Allocated memory was 54.5 MB in the beginning and 73.4 MB in the end (delta: 18.9 MB). Free memory was 31.2 MB in the beginning and 39.3 MB in the end (delta: -8.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 120.35 ms. Allocated memory is still 73.4 MB. Free memory was 39.3 MB in the beginning and 52.5 MB in the end (delta: -13.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1093.35 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 52.5 MB in the beginning and 47.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 24518.63 ms. Allocated memory was 88.1 MB in the beginning and 157.3 MB in the end (delta: 69.2 MB). Free memory was 47.0 MB in the beginning and 74.7 MB in the end (delta: -27.7 MB). Peak memory consumption was 41.5 MB. Max. memory is 16.1 GB. * Witness Printer took 3.51 ms. Allocated memory is still 157.3 MB. Free memory was 74.7 MB in the beginning and 73.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 790]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 790. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L791] CALL entry_point() [L784] struct A a7; [L785] CALL, EXPR probe1_6(&a7) [L764] int ret = - -3; [L765] CALL, EXPR ldv_malloc(sizeof(int)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L765] RET, EXPR ldv_malloc(sizeof(int)) [L765] int *p = (int *)ldv_malloc(sizeof(int)); [L766] COND TRUE p==0 [L767] return ret; [L785] RET, EXPR probe1_6(&a7) [L785] int ret = probe1_6(&a7); [L786] COND FALSE !(ret==0) [L791] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 51 procedures, 373 locations, 81 error locations. Started 1 CEGAR loops. OverallTime: 24471.9ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 13.2ms, AutomataDifference: 530.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 296 SDtfs, 208 SDslu, 1050 SDs, 0 SdLazy, 390 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 321.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 233 GetRequests, 201 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 197.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=0, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 49.8ms AutomataMinimizationTime, 5 MinimizatonAttempts, 83 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 61.9ms SsaConstructionTime, 122.8ms SatisfiabilityAnalysisTime, 1220.0ms InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 226 ConstructedInterpolants, 6 QuantifiedInterpolants, 583 SizeOfPredicates, 1 NumberOfNonLiveVariables, 528 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 [2021-08-27 06:25:50,572 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...