./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.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_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg --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 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 ................................................................................................................................... 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_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg --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 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:38:05,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:38:05,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:38:06,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:38:06,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:38:06,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:38:06,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:38:06,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:38:06,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:38:06,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:38:06,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:38:06,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:38:06,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:38:06,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:38:06,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:38:06,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:38:06,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:38:06,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:38:06,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:38:06,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:38:06,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:38:06,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:38:06,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:38:06,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:38:06,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:38:06,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:38:06,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:38:06,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:38:06,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:38:06,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:38:06,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:38:06,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:38:06,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:38:06,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:38:06,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:38:06,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:38:06,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:38:06,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:38:06,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:38:06,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:38:06,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:38:06,070 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 09:38:06,112 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:38:06,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:38:06,117 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:38:06,117 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:38:06,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:38:06,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:38:06,120 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:38:06,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:38:06,120 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:38:06,121 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:38:06,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:38:06,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:38:06,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:38:06,123 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:38:06,123 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:38:06,123 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:38:06,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:38:06,124 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:38:06,124 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:38:06,124 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:38:06,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:38:06,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:38:06,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:38:06,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:38:06,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:38:06,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:38:06,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:38:06,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:38:06,130 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:38:06,131 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_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 [2021-10-28 09:38:06,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:38:06,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:38:06,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:38:06,395 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:38:06,396 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:38:06,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-10-28 09:38:06,468 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/data/657785e19/166e7677ac984f3590840e0438c555ea/FLAG95ec06b33 [2021-10-28 09:38:06,956 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:38:06,957 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-10-28 09:38:06,979 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/data/657785e19/166e7677ac984f3590840e0438c555ea/FLAG95ec06b33 [2021-10-28 09:38:07,282 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/data/657785e19/166e7677ac984f3590840e0438c555ea [2021-10-28 09:38:07,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:38:07,286 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:38:07,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:38:07,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:38:07,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:38:07,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:38:07" (1/1) ... [2021-10-28 09:38:07,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1393b6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:07, skipping insertion in model container [2021-10-28 09:38:07,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:38:07" (1/1) ... [2021-10-28 09:38:07,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:38:07,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:38:07,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:38:07,749 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 09:38:07,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@40c50b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:07, skipping insertion in model container [2021-10-28 09:38:07,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:38:07,753 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 09:38:07,755 INFO L168 Benchmark]: Toolchain (without parser) took 468.18 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 60.5 MB in the beginning and 94.7 MB in the end (delta: -34.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:38:07,758 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 96.5 MB. Free memory was 66.8 MB in the beginning and 66.8 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:38:07,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 465.57 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 60.5 MB in the beginning and 94.7 MB in the end (delta: -34.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:38:07,762 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 96.5 MB. Free memory was 66.8 MB in the beginning and 66.8 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 465.57 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 60.5 MB in the beginning and 94.7 MB in the end (delta: -34.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:38:09,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:38:09,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:38:10,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:38:10,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:38:10,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:38:10,059 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:38:10,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:38:10,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:38:10,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:38:10,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:38:10,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:38:10,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:38:10,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:38:10,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:38:10,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:38:10,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:38:10,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:38:10,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:38:10,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:38:10,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:38:10,101 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:38:10,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:38:10,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:38:10,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:38:10,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:38:10,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:38:10,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:38:10,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:38:10,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:38:10,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:38:10,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:38:10,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:38:10,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:38:10,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:38:10,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:38:10,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:38:10,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:38:10,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:38:10,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:38:10,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:38:10,131 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 09:38:10,174 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:38:10,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:38:10,174 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:38:10,175 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:38:10,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:38:10,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:38:10,176 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:38:10,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:38:10,177 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:38:10,177 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:38:10,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:38:10,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:38:10,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:38:10,178 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:38:10,178 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:38:10,178 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:38:10,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:38:10,179 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:38:10,179 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:38:10,179 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:38:10,180 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:38:10,180 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:38:10,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:38:10,180 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:38:10,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:38:10,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:38:10,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:38:10,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:38:10,181 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:38:10,182 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:38:10,182 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:38:10,182 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:38:10,182 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_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98678a21a2b37b871d00192aacebe14c4ee9cc87b75400dd7a4adc0ccfa93151 [2021-10-28 09:38:10,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:38:10,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:38:10,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:38:10,588 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:38:10,590 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:38:10,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-10-28 09:38:10,675 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/data/cde5eb909/03f14d05e98e43aa8402448997d3b031/FLAGfedb0e58f [2021-10-28 09:38:11,350 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:38:11,350 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2021-10-28 09:38:11,376 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/data/cde5eb909/03f14d05e98e43aa8402448997d3b031/FLAGfedb0e58f [2021-10-28 09:38:11,613 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/data/cde5eb909/03f14d05e98e43aa8402448997d3b031 [2021-10-28 09:38:11,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:38:11,622 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:38:11,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:38:11,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:38:11,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:38:11,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:38:11" (1/1) ... [2021-10-28 09:38:11,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449cfce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:11, skipping insertion in model container [2021-10-28 09:38:11,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:38:11" (1/1) ... [2021-10-28 09:38:11,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:38:11,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:38:12,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:38:12,216 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 09:38:12,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:38:12,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:38:12,331 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:38:12,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:38:12,475 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:38:12,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:12 WrapperNode [2021-10-28 09:38:12,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:38:12,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:38:12,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:38:12,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:38:12,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:12" (1/1) ... [2021-10-28 09:38:12,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:12" (1/1) ... [2021-10-28 09:38:12,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:12" (1/1) ... [2021-10-28 09:38:12,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:12" (1/1) ... [2021-10-28 09:38:12,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:12" (1/1) ... [2021-10-28 09:38:12,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:12" (1/1) ... [2021-10-28 09:38:12,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:12" (1/1) ... [2021-10-28 09:38:12,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:38:12,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:38:12,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:38:12,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:38:12,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:12" (1/1) ... [2021-10-28 09:38:12,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:38:12,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:38:12,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:38:12,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:38:12,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:38:12,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:38:12,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 09:38:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:38:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 09:38:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 09:38:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 09:38:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 09:38:12,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 09:38:12,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 09:38:12,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 09:38:12,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 09:38:12,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 09:38:12,733 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 09:38:12,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 09:38:12,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 09:38:12,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 09:38:12,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 09:38:12,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 09:38:12,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 09:38:12,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 09:38:12,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 09:38:12,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 09:38:12,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 09:38:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 09:38:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 09:38:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 09:38:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 09:38:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 09:38:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 09:38:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 09:38:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 09:38:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 09:38:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 09:38:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 09:38:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 09:38:12,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 09:38:12,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 09:38:12,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 09:38:12,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 09:38:12,742 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 09:38:12,742 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 09:38:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 09:38:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:38:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 09:38:12,743 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 09:38:12,744 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 09:38:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 09:38:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 09:38:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 09:38:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 09:38:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 09:38:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 09:38:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 09:38:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 09:38:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 09:38:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 09:38:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 09:38:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 09:38:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 09:38:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 09:38:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 09:38:12,749 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 09:38:12,750 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 09:38:12,750 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 09:38:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 09:38:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 09:38:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 09:38:12,751 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 09:38:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 09:38:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 09:38:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 09:38:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 09:38:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 09:38:12,752 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 09:38:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 09:38:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 09:38:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 09:38:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 09:38:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 09:38:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 09:38:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 09:38:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 09:38:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 09:38:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 09:38:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 09:38:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 09:38:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 09:38:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 09:38:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 09:38:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 09:38:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 09:38:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 09:38:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 09:38:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 09:38:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 09:38:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 09:38:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 09:38:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 09:38:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 09:38:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 09:38:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 09:38:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 09:38:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 09:38:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 09:38:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 09:38:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 09:38:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 09:38:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 09:38:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 09:38:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 09:38:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 09:38:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 09:38:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 09:38:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 09:38:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 09:38:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 09:38:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 09:38:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 09:38:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 09:38:12,763 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 09:38:12,763 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 09:38:12,764 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 09:38:12,764 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 09:38:12,767 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 09:38:12,767 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 09:38:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 09:38:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 09:38:12,770 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 09:38:12,770 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 09:38:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 09:38:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 09:38:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 09:38:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 09:38:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 09:38:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 09:38:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 09:38:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 09:38:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 09:38:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 09:38:12,782 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 09:38:12,782 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 09:38:12,782 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 09:38:12,782 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 09:38:12,782 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 09:38:12,782 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 09:38:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 09:38:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 09:38:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 09:38:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 09:38:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 09:38:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 09:38:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 09:38:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 09:38:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 09:38:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:38:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 09:38:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 09:38:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 09:38:12,784 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 09:38:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 09:38:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:38:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 09:38:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 09:38:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 09:38:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 09:38:12,785 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 09:38:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 09:38:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 09:38:12,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 09:38:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 09:38:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 09:38:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 09:38:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 09:38:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 09:38:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 09:38:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:38:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 09:38:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 09:38:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 09:38:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 09:38:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 09:38:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 09:38:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 09:38:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 09:38:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 09:38:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 09:38:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 09:38:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 09:38:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 09:38:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 09:38:12,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 09:38:12,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 09:38:12,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 09:38:12,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 09:38:12,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 09:38:12,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 09:38:12,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 09:38:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 09:38:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 09:38:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 09:38:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 09:38:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:38:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:38:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:38:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 09:38:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:38:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:38:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 09:38:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 09:38:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 09:38:12,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 09:38:13,392 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:38:13,811 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:38:14,172 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:38:14,172 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-10-28 09:38:14,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:38:14 BoogieIcfgContainer [2021-10-28 09:38:14,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:38:14,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:38:14,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:38:14,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:38:14,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:38:11" (1/3) ... [2021-10-28 09:38:14,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f533f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:38:14, skipping insertion in model container [2021-10-28 09:38:14,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:38:12" (2/3) ... [2021-10-28 09:38:14,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f533f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:38:14, skipping insertion in model container [2021-10-28 09:38:14,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:38:14" (3/3) ... [2021-10-28 09:38:14,182 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test18.i [2021-10-28 09:38:14,187 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:38:14,187 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2021-10-28 09:38:14,229 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:38:14,235 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 09:38:14,235 INFO L340 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2021-10-28 09:38:14,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-10-28 09:38:14,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 09:38:14,258 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:14,259 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:14,259 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:38:14,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:14,264 INFO L85 PathProgramCache]: Analyzing trace with hash 917895108, now seen corresponding path program 1 times [2021-10-28 09:38:14,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:14,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361176373] [2021-10-28 09:38:14,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:14,277 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:14,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:14,280 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:14,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:38:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:14,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:38:14,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:14,623 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 09:38:14,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:14,745 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 09:38:14,745 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:14,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361176373] [2021-10-28 09:38:14,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361176373] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:14,747 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:14,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 09:38:14,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608587832] [2021-10-28 09:38:14,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:38:14,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:14,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:38:14,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:38:14,795 INFO L87 Difference]: Start difference. First operand has 117 states, 66 states have (on average 1.606060606060606) internal successors, (106), 94 states have internal predecessors, (106), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:38:14,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:14,936 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2021-10-28 09:38:14,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:38:14,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-10-28 09:38:14,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:14,946 INFO L225 Difference]: With dead ends: 78 [2021-10-28 09:38:14,946 INFO L226 Difference]: Without dead ends: 75 [2021-10-28 09:38:14,948 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 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 09:38:14,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-28 09:38:14,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2021-10-28 09:38:14,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 38 states have internal predecessors, (43), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 09:38:14,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2021-10-28 09:38:14,986 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 17 [2021-10-28 09:38:14,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:14,986 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2021-10-28 09:38:14,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:38:14,987 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2021-10-28 09:38:14,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 09:38:14,988 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:14,988 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:15,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:15,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:15,200 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:38:15,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:15,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1634261853, now seen corresponding path program 1 times [2021-10-28 09:38:15,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:15,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1538635316] [2021-10-28 09:38:15,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:15,202 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:15,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:15,203 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:15,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:38:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:15,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:38:15,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:15,445 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 09:38:15,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:15,538 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 09:38:15,539 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:15,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1538635316] [2021-10-28 09:38:15,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1538635316] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:15,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:15,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 09:38:15,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959186739] [2021-10-28 09:38:15,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:38:15,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:15,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:38:15,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:15,549 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:38:15,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:15,649 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2021-10-28 09:38:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:38:15,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2021-10-28 09:38:15,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:15,651 INFO L225 Difference]: With dead ends: 76 [2021-10-28 09:38:15,651 INFO L226 Difference]: Without dead ends: 73 [2021-10-28 09:38:15,651 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:38:15,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-28 09:38:15,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 44. [2021-10-28 09:38:15,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 25 states have (on average 1.56) internal successors, (39), 35 states have internal predecessors, (39), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-28 09:38:15,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2021-10-28 09:38:15,659 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 17 [2021-10-28 09:38:15,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:15,659 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2021-10-28 09:38:15,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:38:15,659 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2021-10-28 09:38:15,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 09:38:15,660 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:15,660 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:15,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:15,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:15,872 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:38:15,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:15,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1661450729, now seen corresponding path program 1 times [2021-10-28 09:38:15,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:15,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [228150675] [2021-10-28 09:38:15,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:15,875 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:15,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:15,876 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:15,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 09:38:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:16,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:38:16,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:16,110 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 09:38:16,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:16,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:16,183 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:16,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [228150675] [2021-10-28 09:38:16,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [228150675] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:38:16,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:38:16,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 09:38:16,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585584500] [2021-10-28 09:38:16,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:38:16,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:16,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:38:16,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:38:16,186 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 09:38:16,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:16,263 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2021-10-28 09:38:16,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:38:16,264 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 18 [2021-10-28 09:38:16,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:16,266 INFO L225 Difference]: With dead ends: 93 [2021-10-28 09:38:16,266 INFO L226 Difference]: Without dead ends: 93 [2021-10-28 09:38:16,266 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:38:16,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-28 09:38:16,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 51. [2021-10-28 09:38:16,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 41 states have internal predecessors, (48), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 09:38:16,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2021-10-28 09:38:16,274 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 18 [2021-10-28 09:38:16,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:16,274 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2021-10-28 09:38:16,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 09:38:16,275 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2021-10-28 09:38:16,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 09:38:16,276 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:16,276 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:16,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:16,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:16,488 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:38:16,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:16,488 INFO L85 PathProgramCache]: Analyzing trace with hash -2108901776, now seen corresponding path program 1 times [2021-10-28 09:38:16,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:16,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704490558] [2021-10-28 09:38:16,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:16,489 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:16,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:16,490 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:16,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 09:38:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:16,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:38:16,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:16,739 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 09:38:16,887 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 09:38:16,888 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 21 treesize of output 26 [2021-10-28 09:38:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:16,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:17,233 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:17,234 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:17,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704490558] [2021-10-28 09:38:17,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1704490558] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 09:38:17,235 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:38:17,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-10-28 09:38:17,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959900277] [2021-10-28 09:38:17,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:38:17,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:17,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:38:17,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:38:17,237 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:38:17,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:38:17,922 INFO L93 Difference]: Finished difference Result 157 states and 185 transitions. [2021-10-28 09:38:17,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:38:17,923 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 23 [2021-10-28 09:38:17,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:38:17,925 INFO L225 Difference]: With dead ends: 157 [2021-10-28 09:38:17,926 INFO L226 Difference]: Without dead ends: 157 [2021-10-28 09:38:17,926 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:38:17,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-10-28 09:38:17,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 70. [2021-10-28 09:38:17,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 47 states have (on average 1.4893617021276595) internal successors, (70), 57 states have internal predecessors, (70), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2021-10-28 09:38:17,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 87 transitions. [2021-10-28 09:38:17,937 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 87 transitions. Word has length 23 [2021-10-28 09:38:17,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:38:17,938 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 87 transitions. [2021-10-28 09:38:17,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:38:17,938 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 87 transitions. [2021-10-28 09:38:17,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 09:38:17,939 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:38:17,939 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:38:17,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:38:18,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:38:18,151 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:38:18,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:38:18,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2108901775, now seen corresponding path program 1 times [2021-10-28 09:38:18,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:38:18,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439715497] [2021-10-28 09:38:18,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:38:18,152 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:38:18,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:38:18,153 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:38:18,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 09:38:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:38:18,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 09:38:18,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:38:18,384 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 09:38:18,401 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 09:38:20,784 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 09:38:20,784 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 32 treesize of output 34 [2021-10-28 09:38:20,797 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 09:38:20,798 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 26 treesize of output 26 [2021-10-28 09:38:20,878 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:20,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:38:38,394 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 29 treesize of output 27 [2021-10-28 09:38:39,044 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 27 treesize of output 25 [2021-10-28 09:38:39,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:38:39,220 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:38:39,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439715497] [2021-10-28 09:38:39,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439715497] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 09:38:39,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:38:39,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2021-10-28 09:38:39,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114424701] [2021-10-28 09:38:39,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 09:38:39,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:38:39,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 09:38:39,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=324, Unknown=6, NotChecked=0, Total=380 [2021-10-28 09:38:39,223 INFO L87 Difference]: Start difference. First operand 70 states and 87 transitions. Second operand has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 09:39:47,730 WARN L207 SmtUtils]: Spent 8.26 s on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-10-28 09:40:38,972 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (let ((.cse1 (bvadd (_ bv4 32) .cse0 c_entry_point_~array~0.offset))) (and (bvule (bvadd .cse0 c_entry_point_~array~0.offset) .cse1) (= |c_old(#valid)| |c_#valid|) (= |c_#length| |c_old(#length)|) (= c_entry_point_~len~0 (_ bv10 32)) (bvule .cse1 (select |c_#length| c_entry_point_~array~0.base)) (forall ((|v_ldv_malloc_#res.base_31| (_ BitVec 32))) (or (and (let ((.cse2 (bvmul c_entry_point_~i~0 (_ bv4 32)))) (bvule (bvadd .cse2 c_entry_point_~array~0.offset) (bvadd (_ bv4 32) .cse2 c_entry_point_~array~0.offset))) (forall ((v_ldv_malloc_~size_28 (_ BitVec 32))) (bvule (bvadd (_ bv4 32) (bvmul c_entry_point_~i~0 (_ bv4 32)) c_entry_point_~array~0.offset) (select (store |c_#length| |v_ldv_malloc_#res.base_31| v_ldv_malloc_~size_28) c_entry_point_~array~0.base)))) (not (= (_ bv0 1) (bvneg (select |c_#valid| |v_ldv_malloc_#res.base_31|))))))))) is different from false [2021-10-28 09:42:13,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:13,781 INFO L93 Difference]: Finished difference Result 352 states and 409 transitions. [2021-10-28 09:42:13,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-28 09:42:13,782 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 23 [2021-10-28 09:42:13,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:13,785 INFO L225 Difference]: With dead ends: 352 [2021-10-28 09:42:13,786 INFO L226 Difference]: Without dead ends: 352 [2021-10-28 09:42:13,794 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 57.4s TimeCoverageRelationStatistics Valid=213, Invalid=1106, Unknown=17, NotChecked=70, Total=1406 [2021-10-28 09:42:13,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2021-10-28 09:42:13,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 113. [2021-10-28 09:42:13,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 86 states have (on average 1.4767441860465116) internal successors, (127), 94 states have internal predecessors, (127), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (18), 13 states have call predecessors, (18), 10 states have call successors, (18) [2021-10-28 09:42:13,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 156 transitions. [2021-10-28 09:42:13,816 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 156 transitions. Word has length 23 [2021-10-28 09:42:13,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:13,817 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 156 transitions. [2021-10-28 09:42:13,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 5 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-28 09:42:13,817 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 156 transitions. [2021-10-28 09:42:13,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 09:42:13,818 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:13,819 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:42:13,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:42:14,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:42:14,021 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:42:14,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:14,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1680506895, now seen corresponding path program 1 times [2021-10-28 09:42:14,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:42:14,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082067207] [2021-10-28 09:42:14,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:14,022 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:42:14,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:42:14,023 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:42:14,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 09:42:14,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:14,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:42:14,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:42:14,366 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:42:14,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:42:14,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:42:14,535 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:42:14,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082067207] [2021-10-28 09:42:14,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1082067207] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-28 09:42:14,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:42:14,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-10-28 09:42:14,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268510745] [2021-10-28 09:42:14,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:42:14,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:42:14,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:42:14,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:42:14,537 INFO L87 Difference]: Start difference. First operand 113 states and 156 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:42:14,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:14,626 INFO L93 Difference]: Finished difference Result 104 states and 142 transitions. [2021-10-28 09:42:14,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:42:14,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-10-28 09:42:14,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:14,629 INFO L225 Difference]: With dead ends: 104 [2021-10-28 09:42:14,629 INFO L226 Difference]: Without dead ends: 100 [2021-10-28 09:42:14,630 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 09:42:14,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-10-28 09:42:14,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2021-10-28 09:42:14,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 76 states have (on average 1.486842105263158) internal successors, (113), 83 states have internal predecessors, (113), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (15), 11 states have call predecessors, (15), 9 states have call successors, (15) [2021-10-28 09:42:14,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 138 transitions. [2021-10-28 09:42:14,640 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 138 transitions. Word has length 23 [2021-10-28 09:42:14,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:14,640 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 138 transitions. [2021-10-28 09:42:14,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:42:14,641 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 138 transitions. [2021-10-28 09:42:14,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:42:14,642 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:14,642 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:42:14,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:42:14,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:42:14,860 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:42:14,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:14,861 INFO L85 PathProgramCache]: Analyzing trace with hash 569916636, now seen corresponding path program 1 times [2021-10-28 09:42:14,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:42:14,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2145085020] [2021-10-28 09:42:14,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:14,862 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:42:14,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:42:14,864 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:42:14,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 09:42:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:15,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:42:15,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:42:15,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:42:15,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:42:15,351 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:42:15,352 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:42:15,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2145085020] [2021-10-28 09:42:15,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2145085020] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:42:15,352 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:42:15,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 09:42:15,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071520597] [2021-10-28 09:42:15,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:42:15,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:42:15,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:42:15,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:42:15,354 INFO L87 Difference]: Start difference. First operand 100 states and 138 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:42:15,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:15,453 INFO L93 Difference]: Finished difference Result 145 states and 194 transitions. [2021-10-28 09:42:15,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:42:15,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2021-10-28 09:42:15,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:15,456 INFO L225 Difference]: With dead ends: 145 [2021-10-28 09:42:15,456 INFO L226 Difference]: Without dead ends: 145 [2021-10-28 09:42:15,456 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:42:15,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-10-28 09:42:15,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 104. [2021-10-28 09:42:15,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 80 states have (on average 1.4375) internal successors, (115), 85 states have internal predecessors, (115), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (15), 13 states have call predecessors, (15), 9 states have call successors, (15) [2021-10-28 09:42:15,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 140 transitions. [2021-10-28 09:42:15,479 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 140 transitions. Word has length 25 [2021-10-28 09:42:15,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:15,481 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 140 transitions. [2021-10-28 09:42:15,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 09:42:15,481 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 140 transitions. [2021-10-28 09:42:15,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 09:42:15,482 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:15,483 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:42:15,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:42:15,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:42:15,693 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting entry_pointErr3REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:42:15,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:15,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1982240325, now seen corresponding path program 1 times [2021-10-28 09:42:15,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:42:15,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988726332] [2021-10-28 09:42:15,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:15,694 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:42:15,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:42:15,694 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:42:15,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 09:42:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:15,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:42:15,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:42:16,018 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:42:16,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:42:16,142 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:42:16,142 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:42:16,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1988726332] [2021-10-28 09:42:16,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1988726332] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:42:16,143 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:42:16,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-28 09:42:16,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486091971] [2021-10-28 09:42:16,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:42:16,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:42:16,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:42:16,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:42:16,144 INFO L87 Difference]: Start difference. First operand 104 states and 140 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 09:42:16,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:16,250 INFO L93 Difference]: Finished difference Result 102 states and 130 transitions. [2021-10-28 09:42:16,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:42:16,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2021-10-28 09:42:16,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:16,253 INFO L225 Difference]: With dead ends: 102 [2021-10-28 09:42:16,253 INFO L226 Difference]: Without dead ends: 102 [2021-10-28 09:42:16,253 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:42:16,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-28 09:42:16,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 96. [2021-10-28 09:42:16,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 72 states have (on average 1.375) internal successors, (99), 77 states have internal predecessors, (99), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (15), 13 states have call predecessors, (15), 9 states have call successors, (15) [2021-10-28 09:42:16,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 124 transitions. [2021-10-28 09:42:16,261 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 124 transitions. Word has length 25 [2021-10-28 09:42:16,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:16,261 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 124 transitions. [2021-10-28 09:42:16,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 09:42:16,262 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 124 transitions. [2021-10-28 09:42:16,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 09:42:16,262 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:16,263 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 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 09:42:16,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:42:16,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:42:16,463 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:42:16,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:16,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1319909042, now seen corresponding path program 1 times [2021-10-28 09:42:16,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:42:16,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281631756] [2021-10-28 09:42:16,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:16,464 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:42:16,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:42:16,465 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:42:16,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 09:42:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:16,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:42:16,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:42:17,189 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:42:17,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:42:17,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:42:17,499 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:42:17,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281631756] [2021-10-28 09:42:17,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [281631756] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-28 09:42:17,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:42:17,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-10-28 09:42:17,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313244840] [2021-10-28 09:42:17,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:42:17,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:42:17,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:42:17,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:42:17,502 INFO L87 Difference]: Start difference. First operand 96 states and 124 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 09:42:17,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:42:17,881 INFO L93 Difference]: Finished difference Result 95 states and 122 transitions. [2021-10-28 09:42:17,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:42:17,883 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 26 [2021-10-28 09:42:17,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:42:17,884 INFO L225 Difference]: With dead ends: 95 [2021-10-28 09:42:17,884 INFO L226 Difference]: Without dead ends: 95 [2021-10-28 09:42:17,885 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:42:17,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-28 09:42:17,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-10-28 09:42:17,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 72 states have (on average 1.3472222222222223) internal successors, (97), 76 states have internal predecessors, (97), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (15), 13 states have call predecessors, (15), 9 states have call successors, (15) [2021-10-28 09:42:17,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 122 transitions. [2021-10-28 09:42:17,896 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 122 transitions. Word has length 26 [2021-10-28 09:42:17,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:42:17,897 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 122 transitions. [2021-10-28 09:42:17,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 4 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 09:42:17,897 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 122 transitions. [2021-10-28 09:42:17,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-28 09:42:17,899 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:42:17,899 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:42:17,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:42:18,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:42:18,105 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 77 more)] === [2021-10-28 09:42:18,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:42:18,105 INFO L85 PathProgramCache]: Analyzing trace with hash -446583614, now seen corresponding path program 1 times [2021-10-28 09:42:18,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:42:18,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [228853257] [2021-10-28 09:42:18,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:18,106 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:42:18,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:42:18,107 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:42:18,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 09:42:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:18,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 09:42:18,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:42:18,895 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:42:18,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:42:23,177 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_8| |c_#valid|) (exists ((v_entry_point_~array~0.base_29 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_8| (store |c_old(#valid)| v_entry_point_~array~0.base_29 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~array~0.base_29)))))))))))))) is different from false [2021-10-28 09:42:23,537 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_old(#valid)_BEFORE_CALL_8| (Array (_ BitVec 32) (_ BitVec 1)))) (or (= |v_old(#valid)_BEFORE_CALL_8| (store |c_#valid| c_entry_point_~array~0.base (_ bv0 1))) (exists ((v_entry_point_~array~0.base_29 (_ BitVec 32))) (and (not (= |v_old(#valid)_BEFORE_CALL_8| (store |c_old(#valid)| v_entry_point_~array~0.base_29 (_ bv0 1)))) (= (_ bv0 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_old(#valid)| v_entry_point_~array~0.base_29)))))))))))))) is different from false [2021-10-28 09:42:23,977 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:42:23,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [228853257] [2021-10-28 09:42:23,978 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~array~0.base_29 (_ bv0 1)) v_prenex_3)=(= (select v_prenex_3 v_antiDerIndex_entry0_1) (select (store |v_old(#valid)_BEFORE_CALL_9| v_entry_point_~array~0.base_29 (_ bv0 1)) v_antiDerIndex_entry0_1))} [2021-10-28 09:42:23,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1519437630] [2021-10-28 09:42:23,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:23,979 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-28 09:42:23,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/cvc4 [2021-10-28 09:42:23,982 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-28 09:42:24,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-28 09:42:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:24,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 09:42:24,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:42:24,456 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 09:42:24,457 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 09:42:29,114 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:42:29,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:42:42,105 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(= (store |v_old(#valid)_BEFORE_CALL_14| v_entry_point_~array~0.base_29 (_ bv0 1)) v_prenex_5)=(= (select v_prenex_5 v_antiDerIndex_entry0_2) (select (store |v_old(#valid)_BEFORE_CALL_14| v_entry_point_~array~0.base_29 (_ bv0 1)) v_antiDerIndex_entry0_2))} [2021-10-28 09:42:42,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073741222] [2021-10-28 09:42:42,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:42:42,106 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:42:42,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:42:42,113 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:42:42,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-28 09:42:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:42:42,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:42:42,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:42:42,843 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:42:42,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:42:54,190 INFO L354 Elim1Store]: treesize reduction 16, result has 78.1 percent of original size [2021-10-28 09:42:54,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 72 treesize of output 119 [2021-10-28 09:42:54,848 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Substitution failed: {(not (= (store |old(#valid)| v_entry_point_~array~0.base_BEFORE_CALL_12 (_ bv0 1)) v_prenex_9))=(not (= (select v_prenex_9 v_antiDerIndex_entry0_4) (select (store |old(#valid)| v_entry_point_~array~0.base_BEFORE_CALL_12 (_ bv0 1)) v_antiDerIndex_entry0_4)))} [2021-10-28 09:42:54,848 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:42:54,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-28 09:42:54,849 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-10-28 09:42:54,849 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-28 09:42:54,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:42:54,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 09:42:54,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 09:42:54,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 09:42:54,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 09:42:54,859 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 09:42:54,859 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 09:42:54,859 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 09:42:54,859 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 09:42:54,859 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 09:42:54,860 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 09:42:54,860 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 09:42:54,860 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 09:42:54,860 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 09:42:54,860 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 09:42:54,861 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 09:42:54,861 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 09:42:54,861 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 09:42:54,861 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 09:42:54,862 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 09:42:54,862 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 09:42:54,862 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 09:42:54,862 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 09:42:54,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 09:42:54,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 09:42:54,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 09:42:54,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 09:42:54,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 09:42:54,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 09:42:54,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 09:42:54,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 09:42:54,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 09:42:54,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 09:42:54,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 09:42:54,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 09:42:54,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 09:42:54,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 09:42:54,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 09:42:54,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 09:42:54,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 09:42:54,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 09:42:54,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 09:42:54,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 09:42:54,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:42:54,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:42:54,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:42:54,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:42:54,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:42:54,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:42:54,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 09:42:54,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 09:42:54,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 09:42:54,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 09:42:54,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 09:42:54,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 09:42:54,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 09:42:54,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 09:42:54,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:42:54,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:42:54,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:42:54,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:42:54,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:42:54,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:42:54,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 09:42:54,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 09:42:54,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 09:42:54,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 09:42:54,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 09:42:54,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 09:42:54,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 09:42:54,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 09:42:54,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-10-28 09:42:54,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-10-28 09:42:54,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2REQUIRES_VIOLATION [2021-10-28 09:42:54,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr3REQUIRES_VIOLATION [2021-10-28 09:42:54,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:42:54,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:42:54,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:42:54,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:42:54,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:42:54,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:42:54,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:42:55,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:42:55,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:42:55,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:42:55,482 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:42:55,485 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:42:55,487 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 09:42:55,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:42:55 BoogieIcfgContainer [2021-10-28 09:42:55,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:42:55,496 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:42:55,496 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:42:55,497 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:42:55,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:38:14" (3/4) ... [2021-10-28 09:42:55,500 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:42:55,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:42:55,501 INFO L168 Benchmark]: Toolchain (without parser) took 283878.77 ms. Allocated memory was 65.0 MB in the beginning and 98.6 MB in the end (delta: 33.6 MB). Free memory was 42.5 MB in the beginning and 22.0 MB in the end (delta: 20.5 MB). Peak memory consumption was 53.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:42:55,501 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 65.0 MB. Free memory is still 45.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:42:55,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 854.12 ms. Allocated memory is still 65.0 MB. Free memory was 42.4 MB in the beginning and 29.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:42:55,502 INFO L168 Benchmark]: Boogie Preprocessor took 168.15 ms. Allocated memory is still 65.0 MB. Free memory was 29.8 MB in the beginning and 45.6 MB in the end (delta: -15.7 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:42:55,502 INFO L168 Benchmark]: RCFGBuilder took 1527.87 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 45.3 MB in the beginning and 54.7 MB in the end (delta: -9.5 MB). Peak memory consumption was 31.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:42:55,503 INFO L168 Benchmark]: TraceAbstraction took 281319.50 ms. Allocated memory was 79.7 MB in the beginning and 98.6 MB in the end (delta: 18.9 MB). Free memory was 54.3 MB in the beginning and 22.0 MB in the end (delta: 32.3 MB). Peak memory consumption was 56.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:42:55,503 INFO L168 Benchmark]: Witness Printer took 3.88 ms. Allocated memory is still 98.6 MB. Free memory is still 22.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:42:55,505 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 65.0 MB. Free memory is still 45.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 854.12 ms. Allocated memory is still 65.0 MB. Free memory was 42.4 MB in the beginning and 29.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 168.15 ms. Allocated memory is still 65.0 MB. Free memory was 29.8 MB in the beginning and 45.6 MB in the end (delta: -15.7 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1527.87 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 45.3 MB in the beginning and 54.7 MB in the end (delta: -9.5 MB). Peak memory consumption was 31.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 281319.50 ms. Allocated memory was 79.7 MB in the beginning and 98.6 MB in the end (delta: 18.9 MB). Free memory was 54.3 MB in the beginning and 22.0 MB in the end (delta: 32.3 MB). Peak memory consumption was 56.2 MB. Max. memory is 16.1 GB. * Witness Printer took 3.88 ms. Allocated memory is still 98.6 MB. Free memory is still 22.0 MB. There was no memory consumed. 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: 780]: 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 780. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L781] CALL entry_point() [L761] int len = 10; [L762] CALL, EXPR ldv_malloc(sizeof(struct A18*)*len) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L762] RET, EXPR ldv_malloc(sizeof(struct A18*)*len) [L762] struct A18 **array = (struct A18 **)ldv_malloc(sizeof(struct A18*)*len); [L763] COND TRUE \read(**array) [L764] struct A18 *p; [L765] int i=0; [L766] int j; [L767] COND TRUE i=0) [L776] free(array) [L776] free(array) [L776] free(array) [L781] RET entry_point() - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 770]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 776]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 357 locations, 81 error locations. Started 1 CEGAR loops. OverallTime: 281.2s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 216.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 478 SDtfs, 1097 SDslu, 1515 SDs, 0 SdLazy, 1377 SolverSat, 181 SolverUnsat, 80 SolverUnknown, 0 SolverNotchecked, 171.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 414 GetRequests, 329 SyntacticMatches, 7 SemanticMatches, 78 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 58.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=0, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 471 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 29.1s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 405 ConstructedInterpolants, 26 QuantifiedInterpolants, 2075 SizeOfPredicates, 13 NumberOfNonLiveVariables, 916 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 19 InterpolantComputations, 11 PerfectInterpolantSequences, 34/52 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 09:42:55,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97684a7d-dea6-4408-b349-9bdfc4fd3f34/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...