./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test8_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_test8_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 79a252c986c7b06f14f3ee394685573049ad76fb ................................................................................................................................... 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_test8_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 79a252c986c7b06f14f3ee394685573049ad76fb ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:25:57,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:25:57,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:25:57,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:25:57,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:25:57,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:25:57,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:25:57,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:25:57,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:25:57,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:25:57,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:25:57,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:25:57,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:25:57,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:25:57,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:25:57,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:25:57,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:25:57,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:25:57,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:25:57,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:25:57,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:25:57,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:25:57,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:25:57,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:25:57,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:25:57,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:25:57,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:25:57,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:25:57,163 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:25:57,164 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:25:57,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:25:57,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:25:57,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:25:57,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:25:57,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:25:57,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:25:57,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:25:57,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:25:57,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:25:57,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:25:57,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:25:57,170 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:25:57,193 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:25:57,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:25:57,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:25:57,195 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:25:57,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:25:57,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:25:57,196 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:25:57,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:25:57,197 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:25:57,197 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:25:57,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:25:57,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:25:57,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:25:57,198 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:25:57,198 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:25:57,198 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:25:57,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:25:57,198 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:25:57,199 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:25:57,199 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:25:57,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:25:57,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:25:57,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:25:57,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:25:57,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:25:57,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:25:57,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:25:57,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:25:57,200 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:25:57,200 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79a252c986c7b06f14f3ee394685573049ad76fb [2021-08-27 06:25:57,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:25:57,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:25:57,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:25:57,444 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:25:57,445 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:25:57,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i [2021-08-27 06:25:57,501 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f3858b34/122956b050b2491aa132dba041fd0196/FLAG4d0cb9fba [2021-08-27 06:25:57,875 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:25:57,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i [2021-08-27 06:25:57,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f3858b34/122956b050b2491aa132dba041fd0196/FLAG4d0cb9fba [2021-08-27 06:25:57,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f3858b34/122956b050b2491aa132dba041fd0196 [2021-08-27 06:25:57,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:25:57,919 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:25:57,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:25:57,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:25:57,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:25:57,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:25:57" (1/1) ... [2021-08-27 06:25:57,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6adc14cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:57, skipping insertion in model container [2021-08-27 06:25:57,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:25:57" (1/1) ... [2021-08-27 06:25:57,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:25:57,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:25:58,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:25:58,255 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 06:25:58,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@42a46904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:25:58, skipping insertion in model container [2021-08-27 06:25:58,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:25:58,256 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:25:58,258 INFO L168 Benchmark]: Toolchain (without parser) took 338.44 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.2 MB in the beginning and 43.8 MB in the end (delta: -15.7 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:25:58,259 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 33.8 MB in the beginning and 33.8 MB in the end (delta: 37.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:25:58,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.91 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.9 MB in the beginning and 43.8 MB in the end (delta: -15.9 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:25:58,261 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 33.8 MB in the beginning and 33.8 MB in the end (delta: 37.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 334.91 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 27.9 MB in the beginning and 43.8 MB in the end (delta: -15.9 MB). Peak memory consumption was 3.5 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 06:25:59,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:25:59,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:25:59,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:25:59,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:25:59,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:25:59,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:25:59,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:25:59,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:25:59,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:25:59,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:25:59,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:25:59,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:25:59,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:25:59,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:25:59,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:25:59,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:25:59,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:25:59,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:25:59,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:25:59,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:25:59,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:25:59,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:25:59,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:25:59,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:25:59,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:25:59,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:25:59,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:25:59,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:25:59,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:25:59,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:25:59,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:25:59,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:25:59,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:25:59,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:25:59,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:25:59,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:25:59,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:25:59,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:25:59,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:25:59,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:25:59,615 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:25:59,645 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:25:59,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:25:59,645 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:25:59,645 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:25:59,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:25:59,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:25:59,647 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:25:59,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:25:59,647 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:25:59,647 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:25:59,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:25:59,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:25:59,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:25:59,648 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:25:59,648 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:25:59,648 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:25:59,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:25:59,648 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:25:59,649 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:25:59,649 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:25:59,649 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:25:59,649 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:25:59,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:25:59,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:25:59,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:25:59,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:25:59,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:25:59,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:25:59,650 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:25:59,650 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:25:59,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:25:59,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:25:59,651 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79a252c986c7b06f14f3ee394685573049ad76fb [2021-08-27 06:25:59,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:25:59,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:25:59,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:25:59,901 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:25:59,902 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:25:59,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i [2021-08-27 06:25:59,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42eb72fc9/07cee6d561d94f9aa42583f731416af1/FLAG467c9f004 [2021-08-27 06:26:00,443 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:26:00,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i [2021-08-27 06:26:00,454 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42eb72fc9/07cee6d561d94f9aa42583f731416af1/FLAG467c9f004 [2021-08-27 06:26:00,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42eb72fc9/07cee6d561d94f9aa42583f731416af1 [2021-08-27 06:26:00,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:26:00,934 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:26:00,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:26:00,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:26:00,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:26:00,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:26:00" (1/1) ... [2021-08-27 06:26:00,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@527d2fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:00, skipping insertion in model container [2021-08-27 06:26:00,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:26:00" (1/1) ... [2021-08-27 06:26:00,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:26:00,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:26:01,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:26:01,260 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:26:01,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:26:01,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:26:01,327 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:26:01,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:26:01,399 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:26:01,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:01 WrapperNode [2021-08-27 06:26:01,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:26:01,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:26:01,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:26:01,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:26:01,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:01" (1/1) ... [2021-08-27 06:26:01,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:01" (1/1) ... [2021-08-27 06:26:01,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:01" (1/1) ... [2021-08-27 06:26:01,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:01" (1/1) ... [2021-08-27 06:26:01,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:01" (1/1) ... [2021-08-27 06:26:01,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:01" (1/1) ... [2021-08-27 06:26:01,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:01" (1/1) ... [2021-08-27 06:26:01,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:26:01,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:26:01,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:26:01,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:26:01,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:01" (1/1) ... [2021-08-27 06:26:01,504 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:26:01,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:26:01,526 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 06:26:01,532 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 06:26:01,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:26:01,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:26:01,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:26:01,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:26:01,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:26:01,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:26:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:26:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:26:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:26:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:26:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:26:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:26:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:26:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:26:01,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:26:01,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:26:01,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:26:01,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:26:01,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:26:01,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:26:01,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:26:01,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:26:01,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:26:01,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:26:01,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:26:01,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:26:01,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:26:01,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:26:01,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:26:01,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:26:01,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:26:01,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:26:01,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:26:01,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:26:01,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:26:01,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:26:01,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:26:01,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:26:01,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:26:01,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:26:01,570 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:26:01,570 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:26:01,570 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_8 [2021-08-27 06:26:01,570 INFO L138 BoogieDeclarations]: Found implementation of procedure free_8 [2021-08-27 06:26:01,571 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:26:01,571 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:26:01,571 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:26:01,571 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:26:01,571 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:26:01,572 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:26:01,572 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:26:01,572 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:26:01,572 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:26:01,572 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:26:01,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:26:01,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:26:01,573 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:26:01,573 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:26:01,573 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:26:01,573 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:26:01,573 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:26:01,574 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:26:01,574 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:26:01,574 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:26:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:26:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:26:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:26:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:26:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:26:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:26:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:26:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:26:01,576 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:26:01,576 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:26:01,576 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:26:01,576 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:26:01,576 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:26:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:26:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:26:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:26:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:26:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:26:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:26:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:26:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:26:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:26:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:26:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:26:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:26:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:26:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:26:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:26:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:26:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:26:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:26:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:26:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:26:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:26:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:26:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:26:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:26:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:26:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:26:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:26:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:26:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:26:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:26:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:26:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:26:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:26:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:26:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:26:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:26:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:26:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:26:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:26:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:26:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:26:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:26:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:26:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:26:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:26:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:26:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:26:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:26:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:26:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:26:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:26:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:26:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:26:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:26:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:26:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:26:01,592 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:26:01,593 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:26:01,593 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:26:01,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:26:01,593 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:26:01,593 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:26:01,593 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:26:01,593 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:26:01,593 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:26:01,593 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:26:01,593 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:26:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:26:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:26:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:26:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:26:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:26:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:26:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:26:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:26:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:26:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:26:01,595 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:26:01,595 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:26:01,595 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:26:01,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:26:01,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:26:01,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:26:01,596 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:26:01,596 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:26:01,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:26:01,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:26:01,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:26:01,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:26:01,596 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:26:01,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:26:01,596 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:26:01,596 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:26:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:26:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:26:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:26:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:26:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:26:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:26:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:26:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:26:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:26:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:26:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:26:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:26:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:26:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:26:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:26:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:26:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:26:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:26:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:26:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:26:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:26:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:26:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:26:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:26:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:26:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:26:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:26:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:26:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:26:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:26:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:26:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:26:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:26:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_8 [2021-08-27 06:26:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure free_8 [2021-08-27 06:26:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:26:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:26:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:26:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:26:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:26:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:26:01,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:26:01,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:26:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:26:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:26:01,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:26:02,063 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:26:02,260 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:26:02,481 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:26:02,481 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:26:02,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:26:02 BoogieIcfgContainer [2021-08-27 06:26:02,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:26:02,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:26:02,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:26:02,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:26:02,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:26:00" (1/3) ... [2021-08-27 06:26:02,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af331fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:26:02, skipping insertion in model container [2021-08-27 06:26:02,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:26:01" (2/3) ... [2021-08-27 06:26:02,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af331fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:26:02, skipping insertion in model container [2021-08-27 06:26:02,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:26:02" (3/3) ... [2021-08-27 06:26:02,494 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test8_2.i [2021-08-27 06:26:02,497 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:26:02,497 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-08-27 06:26:02,532 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:26:02,537 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 06:26:02,537 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-08-27 06:26:02,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 56 states have (on average 1.5) internal successors, (84), 77 states have internal predecessors, (84), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-08-27 06:26:02,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-27 06:26:02,563 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:26:02,563 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:26:02,563 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting free_8Err0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:26:02,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:26:02,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1046257618, now seen corresponding path program 1 times [2021-08-27 06:26:02,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:26:02,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253275268] [2021-08-27 06:26:02,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:02,576 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:26:02,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:26:02,578 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 06:26:02,600 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 06:26:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:02,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:26:02,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:02,863 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 06:26:02,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:02,967 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 06:26:02,968 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:26:02,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253275268] [2021-08-27 06:26:02,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253275268] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:26:02,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:26:02,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:26:02,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412713780] [2021-08-27 06:26:02,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:26:02,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:26:02,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:26:02,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:26:02,987 INFO L87 Difference]: Start difference. First operand has 104 states, 56 states have (on average 1.5) internal successors, (84), 77 states have internal predecessors, (84), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 06:26:03,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:26:03,041 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2021-08-27 06:26:03,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:26:03,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 18 [2021-08-27 06:26:03,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:26:03,047 INFO L225 Difference]: With dead ends: 33 [2021-08-27 06:26:03,048 INFO L226 Difference]: Without dead ends: 30 [2021-08-27 06:26:03,049 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 22.7ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:26:03,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-08-27 06:26:03,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-08-27 06:26:03,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-08-27 06:26:03,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2021-08-27 06:26:03,072 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 18 [2021-08-27 06:26:03,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:26:03,072 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2021-08-27 06:26:03,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 06:26:03,073 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2021-08-27 06:26:03,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-27 06:26:03,074 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:26:03,074 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:26:03,084 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 06:26:03,281 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 06:26:03,281 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting free_8Err1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:26:03,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:26:03,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1925752517, now seen corresponding path program 1 times [2021-08-27 06:26:03,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:26:03,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66931517] [2021-08-27 06:26:03,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:03,282 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:26:03,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:26:03,283 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 06:26:03,285 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 06:26:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:03,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:26:03,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:03,613 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 06:26:03,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:03,772 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 06:26:03,773 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:26:03,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66931517] [2021-08-27 06:26:03,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66931517] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:26:03,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:26:03,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2021-08-27 06:26:03,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85989453] [2021-08-27 06:26:03,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 06:26:03,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:26:03,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 06:26:03,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-08-27 06:26:03,783 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:26:03,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:26:03,972 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2021-08-27 06:26:03,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 06:26:03,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) Word has length 19 [2021-08-27 06:26:03,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:26:03,973 INFO L225 Difference]: With dead ends: 43 [2021-08-27 06:26:03,973 INFO L226 Difference]: Without dead ends: 43 [2021-08-27 06:26:03,974 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 113.5ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-08-27 06:26:03,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-08-27 06:26:03,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2021-08-27 06:26:03,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (10), 9 states have call predecessors, (10), 8 states have call successors, (10) [2021-08-27 06:26:03,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2021-08-27 06:26:03,980 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 19 [2021-08-27 06:26:03,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:26:03,980 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2021-08-27 06:26:03,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 4 states have call successors, (11), 4 states have call predecessors, (11), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2021-08-27 06:26:03,980 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2021-08-27 06:26:03,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 06:26:03,981 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:26:03,981 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] [2021-08-27 06:26:03,989 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 06:26:04,189 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 06:26:04,190 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting free_8Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:26:04,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:26:04,190 INFO L82 PathProgramCache]: Analyzing trace with hash -431213808, now seen corresponding path program 1 times [2021-08-27 06:26:04,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:26:04,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123700688] [2021-08-27 06:26:04,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:04,191 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:26:04,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:26:04,192 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 06:26:04,193 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 06:26:04,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:04,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:26:04,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:04,389 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 06:26:04,436 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 06:26:04,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:04,533 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 06:26:04,533 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:26:04,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123700688] [2021-08-27 06:26:04,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1123700688] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:26:04,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:26:04,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:26:04,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305474410] [2021-08-27 06:26:04,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:26:04,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:26:04,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:26:04,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:26:04,535 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 06:26:04,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:26:04,567 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2021-08-27 06:26:04,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:26:04,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 20 [2021-08-27 06:26:04,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:26:04,569 INFO L225 Difference]: With dead ends: 46 [2021-08-27 06:26:04,569 INFO L226 Difference]: Without dead ends: 46 [2021-08-27 06:26:04,569 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.7ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:26:04,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-08-27 06:26:04,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-08-27 06:26:04,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 28 states have internal predecessors, (31), 9 states have call successors, (9), 8 states have call predecessors, (9), 8 states have return successors, (10), 9 states have call predecessors, (10), 8 states have call successors, (10) [2021-08-27 06:26:04,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2021-08-27 06:26:04,573 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 20 [2021-08-27 06:26:04,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:26:04,573 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2021-08-27 06:26:04,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 06:26:04,574 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2021-08-27 06:26:04,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 06:26:04,574 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:26:04,574 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] [2021-08-27 06:26:04,585 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 06:26:04,783 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 06:26:04,783 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting free_8Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:26:04,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:26:04,783 INFO L82 PathProgramCache]: Analyzing trace with hash 2066802129, now seen corresponding path program 1 times [2021-08-27 06:26:04,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:26:04,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899627511] [2021-08-27 06:26:04,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:04,784 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:26:04,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:26:04,785 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 06:26:04,785 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 06:26:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:26:04,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:26:04,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:26:05,051 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 06:26:05,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:26:05,183 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 06:26:05,183 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:26:05,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899627511] [2021-08-27 06:26:05,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1899627511] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:26:05,183 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:26:05,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:26:05,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556778994] [2021-08-27 06:26:05,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:26:05,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:26:05,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:26:05,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:26:05,185 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 06:26:05,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:26:05,222 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2021-08-27 06:26:05,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:26:05,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 20 [2021-08-27 06:26:05,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:26:05,223 INFO L225 Difference]: With dead ends: 44 [2021-08-27 06:26:05,223 INFO L226 Difference]: Without dead ends: 44 [2021-08-27 06:26:05,223 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 32.3ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-27 06:26:05,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-08-27 06:26:05,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2021-08-27 06:26:05,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 25 states have internal predecessors, (26), 9 states have call successors, (9), 8 states have call predecessors, (9), 8 states have return successors, (10), 9 states have call predecessors, (10), 8 states have call successors, (10) [2021-08-27 06:26:05,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2021-08-27 06:26:05,226 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 20 [2021-08-27 06:26:05,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:26:05,226 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2021-08-27 06:26:05,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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 06:26:05,227 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2021-08-27 06:26:05,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-27 06:26:05,227 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:26:05,227 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:26:05,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-08-27 06:26:05,434 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 06:26:05,434 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting free_8Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:26:05,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:26:05,435 INFO L82 PathProgramCache]: Analyzing trace with hash -28410770, now seen corresponding path program 1 times [2021-08-27 06:26:05,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:26:05,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631361944] [2021-08-27 06:26:05,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:26:05,435 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:26:05,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:26:05,436 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 06:26:05,437 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 06:26:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 06:26:05,604 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 06:26:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 06:26:05,677 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-27 06:26:05,677 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-27 06:26:05,678 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location free_8Err2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:05,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:26:05,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:26:05,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:26:05,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:26:05,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:26:05,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:26:05,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:26:05,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:26:05,679 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:26:05,680 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:26:05,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:26:05,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:26:05,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:26:05,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:26:05,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:26:05,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:26:05,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:26:05,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:26:05,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:26:05,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:26:05,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:26:05,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:26:05,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:26:05,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:26:05,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:05,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:05,681 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:05,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:05,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:05,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:05,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:26:05,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_8Err0ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:05,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location free_8Err1ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:05,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:26:05,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:26:05,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:26:05,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:26:05,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:26:05,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:26:05,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:26:05,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:26:05,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:05,682 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:05,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:05,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:05,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:05,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:26:05,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:26:05,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:26:05,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:26:05,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:26:05,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:26:05,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:26:05,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:26:05,683 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:26:05,724 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 06:26:05,904 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 06:26:05,909 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:26:05,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:26:05 BoogieIcfgContainer [2021-08-27 06:26:05,924 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:26:05,924 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:26:05,924 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:26:05,924 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:26:05,925 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:26:02" (3/4) ... [2021-08-27 06:26:05,926 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-27 06:26:05,950 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 06:26:05,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:26:05,951 INFO L168 Benchmark]: Toolchain (without parser) took 5016.88 ms. Allocated memory was 52.4 MB in the beginning and 125.8 MB in the end (delta: 73.4 MB). Free memory was 28.3 MB in the beginning and 61.2 MB in the end (delta: -32.9 MB). Peak memory consumption was 38.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:05,951 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 52.4 MB. Free memory was 34.5 MB in the beginning and 34.5 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:26:05,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 464.75 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 28.1 MB in the beginning and 49.0 MB in the end (delta: -20.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:05,952 INFO L168 Benchmark]: Boogie Preprocessor took 93.80 ms. Allocated memory is still 69.2 MB. Free memory was 49.0 MB in the beginning and 44.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:05,952 INFO L168 Benchmark]: RCFGBuilder took 990.70 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 44.1 MB in the beginning and 61.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:05,952 INFO L168 Benchmark]: TraceAbstraction took 3437.60 ms. Allocated memory was 86.0 MB in the beginning and 125.8 MB in the end (delta: 39.8 MB). Free memory was 61.1 MB in the beginning and 63.3 MB in the end (delta: -2.2 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:05,953 INFO L168 Benchmark]: Witness Printer took 25.81 ms. Allocated memory is still 125.8 MB. Free memory was 63.3 MB in the beginning and 61.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:26:05,954 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 52.4 MB. Free memory was 34.5 MB in the beginning and 34.5 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 464.75 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 28.1 MB in the beginning and 49.0 MB in the end (delta: -20.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 93.80 ms. Allocated memory is still 69.2 MB. Free memory was 49.0 MB in the beginning and 44.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 990.70 ms. Allocated memory was 69.2 MB in the beginning and 86.0 MB in the end (delta: 16.8 MB). Free memory was 44.1 MB in the beginning and 61.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3437.60 ms. Allocated memory was 86.0 MB in the beginning and 125.8 MB in the end (delta: 39.8 MB). Free memory was 61.1 MB in the beginning and 63.3 MB in the end (delta: -2.2 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. * Witness Printer took 25.81 ms. Allocated memory is still 125.8 MB. Free memory was 63.3 MB in the beginning and 61.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 762]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L757] int *a8; VAL [\old(a8)=null, \old(a8)=null, \old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, a8={0:0}, ldv_global_msg_list={-2147483648:0}] [L771] CALL entry_point() VAL [\old(a8)=null, \old(a8)=null, a8={0:0}, ldv_global_msg_list={-2147483648:0}] [L765] CALL alloc_8() VAL [\old(a8)=null, \old(a8)=null, a8={0:0}, ldv_global_msg_list={-2147483648:0}] [L759] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(a8)=null, \old(a8)=null, \old(size)=4, a8={0:0}, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L759] RET, EXPR ldv_malloc(sizeof(int)) VAL [\old(a8)=null, \old(a8)=null, a8={0:0}, ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(int))={1:0}] [L759] a8 = (int *)ldv_malloc(sizeof(int)) [L765] RET alloc_8() VAL [\old(a8)=null, \old(a8)=null, a8={1:0}, ldv_global_msg_list={-2147483648:0}] [L766] CALL free_8() VAL [\old(a8)=null, \old(a8)=null, a8={1:0}, ldv_global_msg_list={-2147483648:0}] [L762] COND TRUE \read(*a8) VAL [\old(a8)=null, \old(a8)=null, a8={1:0}, ldv_global_msg_list={-2147483648:0}] [L762] free(a8) VAL [\old(a8)=null, \old(a8)=null, a8={1:0}, ldv_global_msg_list={-2147483648:0}] [L762] free(a8) VAL [\old(a8)=null, \old(a8)=null, a8={1:0}, ldv_global_msg_list={-2147483648:0}] [L762] free(a8) [L766] RET free_8() VAL [\old(a8)=null, \old(a8)=null, a8={1:0}, ldv_global_msg_list={-2147483648:0}] [L767] CALL free_8() VAL [\old(a8)=null, \old(a8)=null, a8={1:0}, ldv_global_msg_list={-2147483648:0}] [L762] COND TRUE \read(*a8) VAL [\old(a8)=null, \old(a8)=null, a8={1:0}, ldv_global_msg_list={-2147483648:0}] [L762] free(a8) VAL [\old(a8)=null, \old(a8)=null, a8={1:0}, ldv_global_msg_list={-2147483648:0}] [L762] free(a8) VAL [\old(a8)=null, \old(a8)=null, a8={1:0}, ldv_global_msg_list={-2147483648:0}] [L762] free(a8) VAL [\old(a8)=null, \old(a8)=null, a8={1:0}, ldv_global_msg_list={-2147483648:0}] - 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: 770]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 762]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 762]: 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 344 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 3376.4ms, OverallIterations: 5, TraceHistogramMax: 2, EmptinessCheckTime: 17.9ms, AutomataDifference: 338.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 126 SDtfs, 83 SDslu, 246 SDs, 0 SdLazy, 159 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 147.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 132 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 185.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 27.6ms AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 53.9ms SsaConstructionTime, 98.2ms SatisfiabilityAnalysisTime, 969.7ms InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 479 SizeOfPredicates, 1 NumberOfNonLiveVariables, 367 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-27 06:26:05,988 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...