./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD --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 a70da9b875e65dfce1d24d9896f28c8f06f4c5903acb198968ef49c3c899dd06 ................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD --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 a70da9b875e65dfce1d24d9896f28c8f06f4c5903acb198968ef49c3c899dd06 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:02:25,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:02:25,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:02:25,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:02:25,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:02:25,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:02:25,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:02:25,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:02:25,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:02:25,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:02:25,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:02:25,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:02:25,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:02:25,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:02:25,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:02:25,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:02:25,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:02:25,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:02:25,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:02:25,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:02:25,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:02:25,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:02:25,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:02:25,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:02:25,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:02:25,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:02:25,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:02:25,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:02:25,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:02:25,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:02:25,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:02:25,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:02:25,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:02:25,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:02:25,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:02:25,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:02:25,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:02:25,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:02:25,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:02:25,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:02:25,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:02:25,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 23:02:25,888 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:02:25,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:02:25,889 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:02:25,889 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:02:25,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:02:25,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:02:25,897 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:02:25,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:02:25,898 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:02:25,898 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:02:25,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:02:25,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:02:25,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:02:25,900 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:02:25,900 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:02:25,901 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:02:25,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:02:25,901 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:02:25,901 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:02:25,901 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:02:25,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:02:25,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:02:25,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:02:25,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:02:25,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:02:25,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:02:25,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:02:25,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:02:25,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:02:25,905 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a70da9b875e65dfce1d24d9896f28c8f06f4c5903acb198968ef49c3c899dd06 [2021-10-28 23:02:26,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:02:26,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:02:26,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:02:26,257 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:02:26,258 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:02:26,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i [2021-10-28 23:02:26,331 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/data/ef6142fc6/695c127a906041b6850b4b05f28fa7c9/FLAGffa09adb6 [2021-10-28 23:02:26,919 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:02:26,919 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i [2021-10-28 23:02:26,949 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/data/ef6142fc6/695c127a906041b6850b4b05f28fa7c9/FLAGffa09adb6 [2021-10-28 23:02:27,166 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/data/ef6142fc6/695c127a906041b6850b4b05f28fa7c9 [2021-10-28 23:02:27,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:02:27,173 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:02:27,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:02:27,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:02:27,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:02:27,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:02:27" (1/1) ... [2021-10-28 23:02:27,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57b1f97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:27, skipping insertion in model container [2021-10-28 23:02:27,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:02:27" (1/1) ... [2021-10-28 23:02:27,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:02:27,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:02:27,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:02:27,737 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) [2021-10-28 23:02:27,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@349fbc21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:27, skipping insertion in model container [2021-10-28 23:02:27,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:02:27,740 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 23:02:27,743 INFO L168 Benchmark]: Toolchain (without parser) took 568.22 ms. Allocated memory is still 86.0 MB. Free memory was 45.7 MB in the beginning and 58.4 MB in the end (delta: -12.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:02:27,744 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory is still 63.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:02:27,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 562.75 ms. Allocated memory is still 86.0 MB. Free memory was 45.5 MB in the beginning and 58.4 MB in the end (delta: -12.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:02:27,748 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory is still 63.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 562.75 ms. Allocated memory is still 86.0 MB. Free memory was 45.5 MB in the beginning and 58.4 MB in the end (delta: -12.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:02:30,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:02:30,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:02:30,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:02:30,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:02:30,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:02:30,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:02:30,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:02:30,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:02:30,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:02:30,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:02:30,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:02:30,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:02:30,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:02:30,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:02:30,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:02:30,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:02:30,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:02:30,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:02:30,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:02:30,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:02:30,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:02:30,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:02:30,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:02:30,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:02:30,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:02:30,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:02:30,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:02:30,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:02:30,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:02:30,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:02:30,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:02:30,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:02:30,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:02:30,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:02:30,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:02:30,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:02:30,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:02:30,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:02:30,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:02:30,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:02:30,174 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 23:02:30,224 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:02:30,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:02:30,225 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:02:30,225 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:02:30,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:02:30,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:02:30,229 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:02:30,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:02:30,230 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:02:30,230 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:02:30,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:02:30,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:02:30,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:02:30,232 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 23:02:30,232 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 23:02:30,232 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 23:02:30,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:02:30,233 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 23:02:30,233 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:02:30,233 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:02:30,233 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:02:30,234 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:02:30,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:02:30,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:02:30,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:02:30,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:02:30,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:02:30,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:02:30,236 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:02:30,236 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:02:30,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:02:30,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:02:30,237 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a70da9b875e65dfce1d24d9896f28c8f06f4c5903acb198968ef49c3c899dd06 [2021-10-28 23:02:30,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:02:30,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:02:30,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:02:30,680 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:02:30,681 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:02:30,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i [2021-10-28 23:02:30,749 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/data/e7b015b43/b503cd68ecaa458e9555c8207b5f13b1/FLAG59f5700fe [2021-10-28 23:02:31,370 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:02:31,371 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/sv-benchmarks/c/ldv-memsafety/memleaks_test14_1.i [2021-10-28 23:02:31,393 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/data/e7b015b43/b503cd68ecaa458e9555c8207b5f13b1/FLAG59f5700fe [2021-10-28 23:02:31,595 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/data/e7b015b43/b503cd68ecaa458e9555c8207b5f13b1 [2021-10-28 23:02:31,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:02:31,599 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 23:02:31,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:02:31,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:02:31,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:02:31,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:02:31" (1/1) ... [2021-10-28 23:02:31,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e26e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:31, skipping insertion in model container [2021-10-28 23:02:31,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:02:31" (1/1) ... [2021-10-28 23:02:31,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:02:31,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:02:32,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:02:32,157 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 23:02:32,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:02:32,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:02:32,232 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:02:32,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:02:32,354 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:02:32,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:32 WrapperNode [2021-10-28 23:02:32,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:02:32,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:02:32,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:02:32,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:02:32,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:32" (1/1) ... [2021-10-28 23:02:32,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:32" (1/1) ... [2021-10-28 23:02:32,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:32" (1/1) ... [2021-10-28 23:02:32,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:32" (1/1) ... [2021-10-28 23:02:32,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:32" (1/1) ... [2021-10-28 23:02:32,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:32" (1/1) ... [2021-10-28 23:02:32,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:32" (1/1) ... [2021-10-28 23:02:32,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:02:32,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:02:32,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:02:32,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:02:32,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:32" (1/1) ... [2021-10-28 23:02:32,479 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:02:32,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:02:32,513 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:02:32,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:02:32,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 23:02:32,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:02:32,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:02:32,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:02:32,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 23:02:32,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 23:02:32,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 23:02:32,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 23:02:32,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 23:02:32,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 23:02:32,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 23:02:32,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 23:02:32,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 23:02:32,557 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:02:32,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 23:02:32,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 23:02:32,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 23:02:32,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 23:02:32,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 23:02:32,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 23:02:32,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 23:02:32,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 23:02:32,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 23:02:32,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 23:02:32,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 23:02:32,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 23:02:32,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 23:02:32,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 23:02:32,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 23:02:32,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 23:02:32,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 23:02:32,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 23:02:32,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 23:02:32,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 23:02:32,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 23:02:32,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 23:02:32,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 23:02:32,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 23:02:32,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 23:02:32,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 23:02:32,562 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 23:02:32,562 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 23:02:32,563 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_14 [2021-10-28 23:02:32,563 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 23:02:32,563 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 23:02:32,563 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 23:02:32,564 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 23:02:32,565 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 23:02:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 23:02:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 23:02:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 23:02:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 23:02:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 23:02:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 23:02:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 23:02:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 23:02:32,567 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 23:02:32,567 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 23:02:32,567 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 23:02:32,567 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 23:02:32,568 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 23:02:32,568 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 23:02:32,569 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 23:02:32,569 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 23:02:32,570 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 23:02:32,570 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 23:02:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 23:02:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 23:02:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 23:02:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 23:02:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 23:02:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 23:02:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 23:02:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 23:02:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 23:02:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 23:02:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 23:02:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 23:02:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 23:02:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 23:02:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 23:02:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 23:02:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 23:02:32,573 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 23:02:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 23:02:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 23:02:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 23:02:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 23:02:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 23:02:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 23:02:32,575 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 23:02:32,576 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 23:02:32,576 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 23:02:32,576 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 23:02:32,576 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 23:02:32,576 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 23:02:32,576 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 23:02:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 23:02:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 23:02:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 23:02:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 23:02:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 23:02:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 23:02:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 23:02:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 23:02:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 23:02:32,578 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 23:02:32,579 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 23:02:32,579 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 23:02:32,579 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 23:02:32,579 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 23:02:32,579 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 23:02:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 23:02:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 23:02:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 23:02:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 23:02:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 23:02:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 23:02:32,580 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 23:02:32,581 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 23:02:32,581 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 23:02:32,581 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 23:02:32,582 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 23:02:32,583 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 23:02:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 23:02:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 23:02:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 23:02:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 23:02:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 23:02:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 23:02:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 23:02:32,589 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 23:02:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 23:02:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 23:02:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 23:02:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 23:02:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 23:02:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 23:02:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 23:02:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 23:02:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 23:02:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 23:02:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 23:02:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 23:02:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 23:02:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 23:02:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 23:02:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 23:02:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 23:02:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 23:02:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 23:02:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 23:02:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 23:02:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 23:02:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 23:02:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 23:02:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 23:02:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 23:02:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 23:02:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 23:02:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 23:02:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 23:02:32,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:02:32,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 23:02:32,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 23:02:32,600 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 23:02:32,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:02:32,600 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 23:02:32,600 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 23:02:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 23:02:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 23:02:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 23:02:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 23:02:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 23:02:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 23:02:32,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 23:02:32,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 23:02:32,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:02:32,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 23:02:32,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 23:02:32,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 23:02:32,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 23:02:32,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 23:02:32,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:02:32,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:02:32,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 23:02:32,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 23:02:32,603 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 23:02:32,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 23:02:32,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 23:02:32,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 23:02:32,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 23:02:32,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 23:02:32,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 23:02:32,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 23:02:32,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 23:02:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 23:02:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 23:02:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 23:02:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 23:02:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 23:02:32,605 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 23:02:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_14 [2021-10-28 23:02:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 23:02:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:02:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:02:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 23:02:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 23:02:32,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:02:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 23:02:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 23:02:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 23:02:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 23:02:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 23:02:33,178 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:02:33,589 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 23:02:33,944 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:02:33,944 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 23:02:33,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:02:33 BoogieIcfgContainer [2021-10-28 23:02:33,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:02:33,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:02:33,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:02:33,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:02:33,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:02:31" (1/3) ... [2021-10-28 23:02:33,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631b85ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:02:33, skipping insertion in model container [2021-10-28 23:02:33,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:32" (2/3) ... [2021-10-28 23:02:33,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631b85ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:02:33, skipping insertion in model container [2021-10-28 23:02:33,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:02:33" (3/3) ... [2021-10-28 23:02:33,955 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test14_1.i [2021-10-28 23:02:33,960 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:02:33,961 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-10-28 23:02:34,004 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:02:34,010 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:02:34,010 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-10-28 23:02:34,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 68 states have (on average 1.5147058823529411) internal successors, (103), 97 states have internal predecessors, (103), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-10-28 23:02:34,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 23:02:34,041 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:02:34,042 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:02:34,042 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_list_addErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:02:34,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:02:34,046 INFO L85 PathProgramCache]: Analyzing trace with hash 897974978, now seen corresponding path program 1 times [2021-10-28 23:02:34,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:02:34,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682154258] [2021-10-28 23:02:34,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:34,059 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:02:34,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:02:34,063 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:02:34,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:02:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:02:34,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:02:34,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:02:34,407 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 [2021-10-28 23:02:34,586 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 23:02:34,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 24 [2021-10-28 23:02:34,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:02:34,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:02:35,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:02:35,074 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:02:35,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682154258] [2021-10-28 23:02:35,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682154258] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:02:35,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:02:35,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 9 [2021-10-28 23:02:35,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317419744] [2021-10-28 23:02:35,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:02:35,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:02:35,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:02:35,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:02:35,106 INFO L87 Difference]: Start difference. First operand has 126 states, 68 states have (on average 1.5147058823529411) internal successors, (103), 97 states have internal predecessors, (103), 14 states have call successors, (14), 13 states have call predecessors, (14), 13 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 10 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:02:35,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:02:35,837 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2021-10-28 23:02:35,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:02:35,840 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2021-10-28 23:02:35,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:02:35,848 INFO L225 Difference]: With dead ends: 57 [2021-10-28 23:02:35,848 INFO L226 Difference]: Without dead ends: 54 [2021-10-28 23:02:35,853 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:02:35,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-28 23:02:35,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 46. [2021-10-28 23:02:35,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 33 states have internal predecessors, (34), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-10-28 23:02:35,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2021-10-28 23:02:35,901 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 19 [2021-10-28 23:02:35,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:02:35,901 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2021-10-28 23:02:35,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:02:35,902 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2021-10-28 23:02:35,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 23:02:35,903 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:02:35,903 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:02:35,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:02:36,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:02:36,118 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_list_addErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:02:36,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:02:36,119 INFO L85 PathProgramCache]: Analyzing trace with hash 897974979, now seen corresponding path program 1 times [2021-10-28 23:02:36,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:02:36,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103981290] [2021-10-28 23:02:36,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:36,121 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:02:36,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:02:36,122 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:02:36,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:02:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:02:36,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 23:02:36,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:02:36,347 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 [2021-10-28 23:02:36,359 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 [2021-10-28 23:02:38,672 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 23:02:38,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 33 [2021-10-28 23:02:38,697 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 23:02:38,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2021-10-28 23:02:38,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:02:38,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:02:51,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:02:51,904 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:02:51,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103981290] [2021-10-28 23:02:51,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103981290] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:02:51,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:02:51,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2021-10-28 23:02:51,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360147274] [2021-10-28 23:02:51,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 23:02:51,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:02:51,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:02:51,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=258, Unknown=5, NotChecked=0, Total=306 [2021-10-28 23:02:51,908 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 7 states have call successors, (9), 7 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 23:04:32,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:04:32,097 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2021-10-28 23:04:32,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:04:32,099 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 7 states have call successors, (9), 7 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 19 [2021-10-28 23:04:32,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:04:32,100 INFO L225 Difference]: With dead ends: 57 [2021-10-28 23:04:32,100 INFO L226 Difference]: Without dead ends: 57 [2021-10-28 23:04:32,101 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 29.1s TimeCoverageRelationStatistics Valid=107, Invalid=532, Unknown=11, NotChecked=0, Total=650 [2021-10-28 23:04:32,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-28 23:04:32,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 45. [2021-10-28 23:04:32,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 23 states have (on average 1.434782608695652) internal successors, (33), 32 states have internal predecessors, (33), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-10-28 23:04:32,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2021-10-28 23:04:32,108 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 19 [2021-10-28 23:04:32,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:04:32,108 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2021-10-28 23:04:32,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 7 states have call successors, (9), 7 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 23:04:32,109 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2021-10-28 23:04:32,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 23:04:32,109 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:04:32,110 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:04:32,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-28 23:04:32,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:04:32,310 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __ldv_list_addErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:04:32,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:04:32,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1778354730, now seen corresponding path program 1 times [2021-10-28 23:04:32,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:04:32,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499421495] [2021-10-28 23:04:32,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:04:32,312 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:04:32,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:04:32,313 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:04:32,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 23:04:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:04:32,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 23:04:32,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:04:32,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2021-10-28 23:04:32,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:04:32,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:04:32,994 INFO L354 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2021-10-28 23:04:32,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-10-28 23:04:33,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:04:33,078 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:04:33,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499421495] [2021-10-28 23:04:33,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499421495] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:04:33,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:04:33,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 10 [2021-10-28 23:04:33,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997471468] [2021-10-28 23:04:33,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 23:04:33,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:04:33,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:04:33,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:04:33,080 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 11 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:04:36,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:04:36,167 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2021-10-28 23:04:36,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:04:36,170 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2021-10-28 23:04:36,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:04:36,171 INFO L225 Difference]: With dead ends: 51 [2021-10-28 23:04:36,171 INFO L226 Difference]: Without dead ends: 51 [2021-10-28 23:04:36,172 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:04:36,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-28 23:04:36,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2021-10-28 23:04:36,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 23 states have (on average 1.391304347826087) internal successors, (32), 31 states have internal predecessors, (32), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-10-28 23:04:36,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2021-10-28 23:04:36,178 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 22 [2021-10-28 23:04:36,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:04:36,178 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2021-10-28 23:04:36,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:04:36,178 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2021-10-28 23:04:36,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 23:04:36,179 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:04:36,179 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:04:36,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:04:36,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:04:36,391 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __ldv_list_addErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:04:36,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:04:36,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1778354729, now seen corresponding path program 1 times [2021-10-28 23:04:36,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:04:36,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1024636216] [2021-10-28 23:04:36,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:04:36,392 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:04:36,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:04:36,393 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:04:36,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 23:04:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:04:36,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-28 23:04:36,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:04:36,671 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 [2021-10-28 23:04:36,701 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 [2021-10-28 23:04:36,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2021-10-28 23:04:36,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2021-10-28 23:04:39,224 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 23:04:39,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2021-10-28 23:04:39,245 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 23:04:39,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 28 [2021-10-28 23:04:39,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2021-10-28 23:04:39,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2021-10-28 23:04:39,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:04:39,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:04:48,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:04:48,512 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:04:48,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1024636216] [2021-10-28 23:04:48,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1024636216] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:04:48,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:04:48,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 23 [2021-10-28 23:04:48,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766977115] [2021-10-28 23:04:48,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-28 23:04:48,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:04:48,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-28 23:04:48,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=493, Unknown=1, NotChecked=0, Total=552 [2021-10-28 23:04:48,515 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 9 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 23:04:58,287 WARN L838 $PredicateComparison]: unable to prove that (and (= (select (select |c_#memory_$Pointer$.offset| |c_entry_point_~#list_14~0.base|) |c_entry_point_~#list_14~0.offset|) |c_entry_point_~#list_14~0.offset|) (= (select (select |c_#memory_$Pointer$.base| |c_entry_point_~#list_14~0.base|) |c_entry_point_~#list_14~0.offset|) |c_entry_point_~#list_14~0.base|) (= (_ bv0 1) (bvadd (bvneg (bvneg (select |c_#valid| |c_entry_point_~#list_14~0.base|))) (_ bv1 1))) (forall ((v_alloc_14_~list.base_BEFORE_CALL_12 (_ BitVec 32)) (v_alloc_14_~list.offset_BEFORE_CALL_9 (_ BitVec 32))) (or (exists ((|v_ldv_malloc_#res.base_16| (_ BitVec 32))) (and (or (not (let ((.cse0 (select (select |c_#memory_$Pointer$.offset| v_alloc_14_~list.base_BEFORE_CALL_12) v_alloc_14_~list.offset_BEFORE_CALL_9))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (exists ((v_ldv_malloc_~size_16 (_ BitVec 32))) (not (bvule (bvadd (select (select |c_#memory_$Pointer$.offset| v_alloc_14_~list.base_BEFORE_CALL_12) v_alloc_14_~list.offset_BEFORE_CALL_9) (_ bv8 32)) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_16| v_ldv_malloc_~size_16) (select (select |c_#memory_$Pointer$.base| v_alloc_14_~list.base_BEFORE_CALL_12) v_alloc_14_~list.offset_BEFORE_CALL_9)))))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_16|)))))))) (let ((.cse2 (select (select |c_#memory_$Pointer$.offset| v_alloc_14_~list.base_BEFORE_CALL_12) v_alloc_14_~list.offset_BEFORE_CALL_9))) (let ((.cse1 (bvadd .cse2 (_ bv8 32)))) (and (bvule .cse1 (select |c_#length| (select (select |c_#memory_$Pointer$.base| v_alloc_14_~list.base_BEFORE_CALL_12) v_alloc_14_~list.offset_BEFORE_CALL_9))) (bvule (bvadd .cse2 (_ bv4 32)) .cse1)))))) (forall ((v_alloc_14_~list.base_BEFORE_CALL_12 (_ BitVec 32)) (v_alloc_14_~list.offset_BEFORE_CALL_9 (_ BitVec 32)) (|v_ldv_malloc_#res.base_17| (_ BitVec 32))) (or (exists ((|v_ldv_malloc_#res.base_16| (_ BitVec 32))) (and (or (not (let ((.cse3 (select (select |c_#memory_$Pointer$.offset| v_alloc_14_~list.base_BEFORE_CALL_12) v_alloc_14_~list.offset_BEFORE_CALL_9))) (bvule (bvadd .cse3 (_ bv4 32)) (bvadd .cse3 (_ bv8 32))))) (exists ((v_ldv_malloc_~size_16 (_ BitVec 32))) (not (bvule (bvadd (select (select |c_#memory_$Pointer$.offset| v_alloc_14_~list.base_BEFORE_CALL_12) v_alloc_14_~list.offset_BEFORE_CALL_9) (_ bv8 32)) (select (store |c_old(#length)| |v_ldv_malloc_#res.base_16| v_ldv_malloc_~size_16) (select (select |c_#memory_$Pointer$.base| v_alloc_14_~list.base_BEFORE_CALL_12) v_alloc_14_~list.offset_BEFORE_CALL_9)))))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| |v_ldv_malloc_#res.base_16|)))))))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_17|)))))) (and (let ((.cse4 (select (select |c_#memory_$Pointer$.offset| v_alloc_14_~list.base_BEFORE_CALL_12) v_alloc_14_~list.offset_BEFORE_CALL_9))) (bvule (bvadd .cse4 (_ bv4 32)) (bvadd .cse4 (_ bv8 32)))) (forall ((ldv_malloc_~size (_ BitVec 32))) (bvule (bvadd (select (select |c_#memory_$Pointer$.offset| v_alloc_14_~list.base_BEFORE_CALL_12) v_alloc_14_~list.offset_BEFORE_CALL_9) (_ bv8 32)) (select (store |c_#length| |v_ldv_malloc_#res.base_17| ldv_malloc_~size) (select (select |c_#memory_$Pointer$.base| v_alloc_14_~list.base_BEFORE_CALL_12) v_alloc_14_~list.offset_BEFORE_CALL_9))))))) (= (_ bv8 32) (select |c_#length| |c_entry_point_~#list_14~0.base|)) (= |c_entry_point_~#list_14~0.offset| (_ bv0 32))) is different from false [2021-10-28 23:07:40,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:40,510 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2021-10-28 23:07:40,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:07:40,530 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 9 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 22 [2021-10-28 23:07:40,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:40,532 INFO L225 Difference]: With dead ends: 47 [2021-10-28 23:07:40,532 INFO L226 Difference]: Without dead ends: 47 [2021-10-28 23:07:40,533 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 57.6s TimeCoverageRelationStatistics Valid=151, Invalid=1031, Unknown=12, NotChecked=66, Total=1260 [2021-10-28 23:07:40,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-28 23:07:40,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2021-10-28 23:07:40,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 30 states have internal predecessors, (31), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-10-28 23:07:40,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2021-10-28 23:07:40,539 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 22 [2021-10-28 23:07:40,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:40,539 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2021-10-28 23:07:40,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 9 states have call successors, (11), 9 states have call predecessors, (11), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 23:07:40,540 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2021-10-28 23:07:40,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:07:40,541 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:40,541 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:40,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:07:40,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:07:40,752 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __ldv_list_addErr2REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:07:40,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:40,753 INFO L85 PathProgramCache]: Analyzing trace with hash 705578287, now seen corresponding path program 1 times [2021-10-28 23:07:40,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:07:40,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322501033] [2021-10-28 23:07:40,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:40,754 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:07:40,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:07:40,755 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:07:40,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 23:07:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:41,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:07:41,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:07:41,060 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 [2021-10-28 23:07:41,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:07:41,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:07:41,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:07:41,511 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:07:41,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322501033] [2021-10-28 23:07:41,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1322501033] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:41,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:41,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-10-28 23:07:41,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643205735] [2021-10-28 23:07:41,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:07:41,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:07:41,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:07:41,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:07:41,513 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:07:42,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:42,027 INFO L93 Difference]: Finished difference Result 66 states and 68 transitions. [2021-10-28 23:07:42,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:07:42,027 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2021-10-28 23:07:42,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:42,029 INFO L225 Difference]: With dead ends: 66 [2021-10-28 23:07:42,029 INFO L226 Difference]: Without dead ends: 66 [2021-10-28 23:07:42,029 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 32 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:07:42,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-10-28 23:07:42,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2021-10-28 23:07:42,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 43 states have internal predecessors, (48), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2021-10-28 23:07:42,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2021-10-28 23:07:42,037 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 23 [2021-10-28 23:07:42,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:42,038 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2021-10-28 23:07:42,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:07:42,038 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2021-10-28 23:07:42,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:07:42,039 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:42,040 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:42,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:07:42,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:07:42,250 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __ldv_list_addErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:07:42,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:42,250 INFO L85 PathProgramCache]: Analyzing trace with hash 705578288, now seen corresponding path program 1 times [2021-10-28 23:07:42,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:07:42,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359475762] [2021-10-28 23:07:42,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:42,251 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:07:42,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:07:42,252 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:07:42,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 23:07:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:42,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 23:07:42,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:07:42,537 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 [2021-10-28 23:07:42,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:07:42,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:07:44,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:07:44,046 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:07:44,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359475762] [2021-10-28 23:07:44,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359475762] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:44,046 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:44,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2021-10-28 23:07:44,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35615984] [2021-10-28 23:07:44,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 23:07:44,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:07:44,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:07:44,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:07:44,048 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 12 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:07:45,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:45,517 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2021-10-28 23:07:45,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:07:45,518 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 12 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2021-10-28 23:07:45,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:45,519 INFO L225 Difference]: With dead ends: 64 [2021-10-28 23:07:45,519 INFO L226 Difference]: Without dead ends: 64 [2021-10-28 23:07:45,520 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2021-10-28 23:07:45,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-28 23:07:45,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2021-10-28 23:07:45,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 43 states have internal predecessors, (46), 9 states have call successors, (9), 9 states have call predecessors, (9), 9 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2021-10-28 23:07:45,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2021-10-28 23:07:45,525 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 23 [2021-10-28 23:07:45,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:45,525 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2021-10-28 23:07:45,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.411764705882353) internal successors, (24), 12 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:07:45,526 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2021-10-28 23:07:45,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 23:07:45,527 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:45,527 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:45,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:07:45,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:07:45,731 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __ldv_list_addErr2REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:07:45,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:45,731 INFO L85 PathProgramCache]: Analyzing trace with hash 834661006, now seen corresponding path program 1 times [2021-10-28 23:07:45,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:07:45,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803311780] [2021-10-28 23:07:45,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:45,732 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:07:45,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:07:45,733 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:07:45,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 23:07:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:45,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:07:45,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:07:46,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:07:46,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:07:46,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:07:46,249 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:07:46,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [803311780] [2021-10-28 23:07:46,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [803311780] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:46,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:46,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:07:46,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81537979] [2021-10-28 23:07:46,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:07:46,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:07:46,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:07:46,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:07:46,251 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:07:46,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:46,289 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2021-10-28 23:07:46,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:07:46,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2021-10-28 23:07:46,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:46,291 INFO L225 Difference]: With dead ends: 45 [2021-10-28 23:07:46,291 INFO L226 Difference]: Without dead ends: 45 [2021-10-28 23:07:46,291 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:07:46,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-28 23:07:46,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2021-10-28 23:07:46,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 29 states have internal predecessors, (30), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-28 23:07:46,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2021-10-28 23:07:46,297 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 23 [2021-10-28 23:07:46,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:46,297 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2021-10-28 23:07:46,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:07:46,298 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2021-10-28 23:07:46,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 23:07:46,299 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:46,299 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:46,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-28 23:07:46,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:07:46,500 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:07:46,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:46,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1497151, now seen corresponding path program 1 times [2021-10-28 23:07:46,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:07:46,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871903893] [2021-10-28 23:07:46,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:46,501 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:07:46,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:07:46,501 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:07:46,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 23:07:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:46,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:07:46,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:07:46,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:07:46,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:07:47,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:07:47,019 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:07:47,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871903893] [2021-10-28 23:07:47,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871903893] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:07:47,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:07:47,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 23:07:47,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340567432] [2021-10-28 23:07:47,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:07:47,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:07:47,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:07:47,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:07:47,021 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 23:07:47,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:07:47,040 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2021-10-28 23:07:47,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:07:47,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 22 [2021-10-28 23:07:47,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:07:47,041 INFO L225 Difference]: With dead ends: 45 [2021-10-28 23:07:47,041 INFO L226 Difference]: Without dead ends: 45 [2021-10-28 23:07:47,042 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:07:47,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-28 23:07:47,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2021-10-28 23:07:47,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 29 states have internal predecessors, (29), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-28 23:07:47,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2021-10-28 23:07:47,046 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 22 [2021-10-28 23:07:47,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:07:47,046 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2021-10-28 23:07:47,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 23:07:47,047 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2021-10-28 23:07:47,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 23:07:47,048 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:07:47,048 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:07:47,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:07:47,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:07:47,259 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-10-28 23:07:47,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:07:47,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1798448510, now seen corresponding path program 1 times [2021-10-28 23:07:47,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:07:47,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914823598] [2021-10-28 23:07:47,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:07:47,260 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:07:47,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:07:47,261 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:07:47,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 23:07:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:07:47,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 23:07:47,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:07:47,599 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 23:07:47,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-28 23:07:52,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:07:52,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:04,032 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:08:04,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914823598] [2021-10-28 23:08:04,033 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_5| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)) v_prenex_3)=(= (select (store |v_old(#valid)_BEFORE_CALL_5| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)) v_antiDerIndex_entry0_1) (select v_prenex_3 v_antiDerIndex_entry0_1))} [2021-10-28 23:08:04,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2115803492] [2021-10-28 23:08:04,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:04,034 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 23:08:04,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/cvc4 [2021-10-28 23:08:04,036 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 23:08:04,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-10-28 23:08:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:04,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:08:04,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:04,495 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 23:08:04,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 28 [2021-10-28 23:08:04,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-10-28 23:08:08,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:08,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:09,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2021-10-28 23:08:20,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_10| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)) v_prenex_7)=(= (select (store |v_old(#valid)_BEFORE_CALL_10| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)) v_antiDerIndex_entry0_2) (select v_prenex_7 v_antiDerIndex_entry0_2))} [2021-10-28 23:08:20,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295172776] [2021-10-28 23:08:20,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:08:20,460 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:08:20,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:08:20,462 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:08:20,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-28 23:08:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:08:20,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:08:20,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:08:24,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:08:24,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:08:29,218 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_14| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_14| |c_#valid|) (exists ((|v_entry_point_~#list_14~0.base_20| (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_14| (store |c_old(#valid)| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)))) (= (_ bv0 1) (select |c_old(#valid)| |v_entry_point_~#list_14~0.base_20|)))))) is different from false [2021-10-28 23:08:31,569 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_15| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)) v_prenex_9)=(= (select v_prenex_9 v_antiDerIndex_entry0_3) (select (store |v_old(#valid)_BEFORE_CALL_15| |v_entry_point_~#list_14~0.base_20| (_ bv0 1)) v_antiDerIndex_entry0_3))} [2021-10-28 23:08:31,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:08:31,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 23:08:31,570 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 23:08:31,570 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 23:08:31,576 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 23:08:31,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 23:08:31,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 23:08:31,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 23:08:31,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 23:08:31,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 23:08:31,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 23:08:31,579 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 23:08:31,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 23:08:31,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 23:08:31,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 23:08:31,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 23:08:31,580 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 23:08:31,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:08:31,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:08:31,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 23:08:31,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 23:08:31,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 23:08:31,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 23:08:31,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 23:08:31,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 23:08:31,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:08:31,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:08:31,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:08:31,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:08:31,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:08:31,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:08:31,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 23:08:31,583 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 23:08:31,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 23:08:31,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 23:08:31,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 23:08:31,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 23:08:31,584 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 23:08:31,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 23:08:31,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 23:08:31,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 23:08:31,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 23:08:31,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 23:08:31,585 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 23:08:31,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 23:08:31,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 23:08:31,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 23:08:31,586 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:31,587 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:31,587 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:31,587 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:31,587 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:31,587 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:31,588 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 23:08:31,588 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 23:08:31,588 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 23:08:31,588 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 23:08:31,588 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 23:08:31,588 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 23:08:31,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 23:08:31,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 23:08:31,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:31,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:31,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:31,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:31,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:31,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 23:08:31,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 23:08:31,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 23:08:31,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 23:08:31,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 23:08:31,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 23:08:31,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 23:08:31,591 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 23:08:31,592 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 23:08:31,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:31,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:32,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:08:32,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:08:32,198 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:08:32,200 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:08:32,203 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 23:08:32,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:08:32 BoogieIcfgContainer [2021-10-28 23:08:32,210 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:08:32,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:08:32,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:08:32,211 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:08:32,211 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:02:33" (3/4) ... [2021-10-28 23:08:32,214 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:08:32,214 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:08:32,215 INFO L168 Benchmark]: Toolchain (without parser) took 360615.50 ms. Allocated memory was 54.5 MB in the beginning and 100.7 MB in the end (delta: 46.1 MB). Free memory was 28.9 MB in the beginning and 35.4 MB in the end (delta: -6.5 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:08:32,216 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 54.5 MB. Free memory was 34.2 MB in the beginning and 34.2 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:08:32,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.94 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 28.7 MB in the beginning and 48.6 MB in the end (delta: -19.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:08:32,216 INFO L168 Benchmark]: Boogie Preprocessor took 103.55 ms. Allocated memory is still 69.2 MB. Free memory was 48.6 MB in the beginning and 44.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:08:32,217 INFO L168 Benchmark]: RCFGBuilder took 1481.65 ms. Allocated memory is still 69.2 MB. Free memory was 44.0 MB in the beginning and 35.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:08:32,217 INFO L168 Benchmark]: TraceAbstraction took 358260.51 ms. Allocated memory was 69.2 MB in the beginning and 100.7 MB in the end (delta: 31.5 MB). Free memory was 34.6 MB in the beginning and 36.3 MB in the end (delta: -1.7 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:08:32,218 INFO L168 Benchmark]: Witness Printer took 4.04 ms. Allocated memory is still 100.7 MB. Free memory was 36.3 MB in the beginning and 35.4 MB in the end (delta: 902.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:08:32,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 54.5 MB. Free memory was 34.2 MB in the beginning and 34.2 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 758.94 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 28.7 MB in the beginning and 48.6 MB in the end (delta: -19.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 103.55 ms. Allocated memory is still 69.2 MB. Free memory was 48.6 MB in the beginning and 44.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1481.65 ms. Allocated memory is still 69.2 MB. Free memory was 44.0 MB in the beginning and 35.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 358260.51 ms. Allocated memory was 69.2 MB in the beginning and 100.7 MB in the end (delta: 31.5 MB). Free memory was 34.6 MB in the beginning and 36.3 MB in the end (delta: -1.7 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.04 ms. Allocated memory is still 100.7 MB. Free memory was 36.3 MB in the beginning and 35.4 MB in the end (delta: 902.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 771]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: unable to decide satisfiability of path constraint, overapproximation of memtrack at line 771. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L772] CALL entry_point() [L768] struct ldv_list_head list_14 = { &(list_14), &(list_14) }; [L769] CALL alloc_14(&list_14) [L762] CALL, EXPR ldv_malloc(sizeof(struct A14)) [L526] COND FALSE !(__VERIFIER_nondet_int()) [L529] return 0; [L762] RET, EXPR ldv_malloc(sizeof(struct A14)) [L762] struct A14 *p = (struct A14 *)ldv_malloc(sizeof(struct A14)); [L763] COND FALSE !(\read(*p)) [L769] RET alloc_14(&list_14) [L768] struct ldv_list_head list_14 = { &(list_14), &(list_14) }; [L772] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 48 procedures, 337 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 358.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 278.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 258 SDtfs, 353 SDslu, 1259 SDs, 0 SdLazy, 1670 SolverSat, 144 SolverUnsat, 98 SolverUnknown, 0 SolverNotchecked, 207.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 377 GetRequests, 237 SyntacticMatches, 17 SemanticMatches, 123 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 89.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=0, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 45 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 47.9s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 351 ConstructedInterpolants, 37 QuantifiedInterpolants, 2962 SizeOfPredicates, 57 NumberOfNonLiveVariables, 1134 ConjunctsInSsa, 138 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 23:08:32,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fda0eae-bc18-4b57-8e36-1782953cabd3/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...