./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY --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 0739bef7461b62f52995e3feabe5faf9fb4f95fee3f2cf661c4248d2611e75f6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:43:32,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:43:32,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:43:32,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:43:32,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:43:32,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:43:32,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:43:32,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:43:32,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:43:32,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:43:32,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:43:32,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:43:32,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:43:32,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:43:32,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:43:32,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:43:32,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:43:32,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:43:32,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:43:32,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:43:32,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:43:32,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:43:32,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:43:32,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:43:32,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:43:32,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:43:32,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:43:32,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:43:32,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:43:32,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:43:32,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:43:32,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:43:32,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:43:32,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:43:32,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:43:32,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:43:32,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:43:32,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:43:32,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:43:32,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:43:32,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:43:32,696 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-07 07:43:32,750 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:43:32,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:43:32,751 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:43:32,751 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:43:32,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:43:32,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:43:32,759 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:43:32,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:43:32,760 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:43:32,760 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 07:43:32,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:43:32,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:43:32,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:43:32,762 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-07 07:43:32,762 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-07 07:43:32,762 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-07 07:43:32,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:43:32,763 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 07:43:32,763 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:43:32,763 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:43:32,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:43:32,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:43:32,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:43:32,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:43:32,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:43:32,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:43:32,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:43:32,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:43:32,765 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:43:32,767 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_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0739bef7461b62f52995e3feabe5faf9fb4f95fee3f2cf661c4248d2611e75f6 [2021-11-07 07:43:33,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:43:33,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:43:33,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:43:33,081 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:43:33,082 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:43:33,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2021-11-07 07:43:33,185 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/data/b1bc811e5/fa3f4449d3364b63aefe032ffde407c7/FLAG3ce152661 [2021-11-07 07:43:33,804 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:43:33,808 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2021-11-07 07:43:33,829 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/data/b1bc811e5/fa3f4449d3364b63aefe032ffde407c7/FLAG3ce152661 [2021-11-07 07:43:34,077 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/data/b1bc811e5/fa3f4449d3364b63aefe032ffde407c7 [2021-11-07 07:43:34,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:43:34,083 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-07 07:43:34,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:43:34,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:43:34,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:43:34,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:43:34" (1/1) ... [2021-11-07 07:43:34,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b37e99f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:34, skipping insertion in model container [2021-11-07 07:43:34,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:43:34" (1/1) ... [2021-11-07 07:43:34,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:43:34,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:43:34,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:43:34,577 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) [2021-11-07 07:43:34,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4e5021f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:34, skipping insertion in model container [2021-11-07 07:43:34,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:43:34,578 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-11-07 07:43:34,580 INFO L168 Benchmark]: Toolchain (without parser) took 495.40 ms. Allocated memory is still 111.1 MB. Free memory was 78.4 MB in the beginning and 84.2 MB in the end (delta: -5.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 07:43:34,581 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 111.1 MB. Free memory is still 65.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:43:34,581 INFO L168 Benchmark]: CACSL2BoogieTranslator took 489.45 ms. Allocated memory is still 111.1 MB. Free memory was 78.1 MB in the beginning and 84.5 MB in the end (delta: -6.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 07:43:34,583 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 111.1 MB. Free memory is still 65.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 489.45 ms. Allocated memory is still 111.1 MB. Free memory was 78.1 MB in the beginning and 84.5 MB in the end (delta: -6.4 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY --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 0739bef7461b62f52995e3feabe5faf9fb4f95fee3f2cf661c4248d2611e75f6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:43:36,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:43:36,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:43:36,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:43:36,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:43:36,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:43:36,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:43:36,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:43:36,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:43:36,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:43:36,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:43:36,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:43:36,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:43:36,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:43:36,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:43:36,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:43:36,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:43:36,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:43:36,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:43:36,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:43:36,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:43:36,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:43:36,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:43:36,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:43:36,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:43:36,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:43:36,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:43:36,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:43:36,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:43:36,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:43:36,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:43:36,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:43:36,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:43:36,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:43:36,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:43:36,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:43:36,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:43:36,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:43:36,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:43:36,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:43:36,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:43:36,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-11-07 07:43:36,902 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:43:36,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:43:36,906 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:43:36,906 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:43:36,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:43:36,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:43:36,909 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:43:36,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:43:36,910 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:43:36,910 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 07:43:36,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:43:36,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:43:36,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:43:36,912 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-07 07:43:36,912 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-07 07:43:36,913 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-07 07:43:36,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:43:36,913 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 07:43:36,914 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 07:43:36,914 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 07:43:36,914 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:43:36,914 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:43:36,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:43:36,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:43:36,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:43:36,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:43:36,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:43:36,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:43:36,917 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-07 07:43:36,917 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 07:43:36,917 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:43:36,917 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 07:43:36,918 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_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0739bef7461b62f52995e3feabe5faf9fb4f95fee3f2cf661c4248d2611e75f6 [2021-11-07 07:43:37,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:43:37,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:43:37,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:43:37,344 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:43:37,345 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:43:37,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2021-11-07 07:43:37,414 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/data/577fccd02/f676b295c0274d01948f9da6486360c5/FLAGc4feee5fa [2021-11-07 07:43:38,005 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:43:38,005 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2021-11-07 07:43:38,031 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/data/577fccd02/f676b295c0274d01948f9da6486360c5/FLAGc4feee5fa [2021-11-07 07:43:38,291 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/data/577fccd02/f676b295c0274d01948f9da6486360c5 [2021-11-07 07:43:38,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:43:38,300 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-07 07:43:38,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:43:38,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:43:38,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:43:38,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:43:38" (1/1) ... [2021-11-07 07:43:38,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14cf5b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:38, skipping insertion in model container [2021-11-07 07:43:38,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:43:38" (1/1) ... [2021-11-07 07:43:38,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:43:38,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:43:38,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:43:38,969 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 07:43:38,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:43:39,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:43:39,078 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:43:39,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:43:39,177 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:43:39,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:39 WrapperNode [2021-11-07 07:43:39,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:43:39,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:43:39,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:43:39,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:43:39,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:39" (1/1) ... [2021-11-07 07:43:39,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:39" (1/1) ... [2021-11-07 07:43:39,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:39" (1/1) ... [2021-11-07 07:43:39,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:39" (1/1) ... [2021-11-07 07:43:39,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:39" (1/1) ... [2021-11-07 07:43:39,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:39" (1/1) ... [2021-11-07 07:43:39,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:39" (1/1) ... [2021-11-07 07:43:39,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:43:39,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:43:39,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:43:39,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:43:39,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:39" (1/1) ... [2021-11-07 07:43:39,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:43:39,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:43:39,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:43:39,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:43:39,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-11-07 07:43:39,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:43:39,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 07:43:39,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-11-07 07:43:39,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-11-07 07:43:39,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-11-07 07:43:39,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-11-07 07:43:39,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-11-07 07:43:39,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-11-07 07:43:39,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-11-07 07:43:39,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-11-07 07:43:39,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-07 07:43:39,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-07 07:43:39,373 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-11-07 07:43:39,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-11-07 07:43:39,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-11-07 07:43:39,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-11-07 07:43:39,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-11-07 07:43:39,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-11-07 07:43:39,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-11-07 07:43:39,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-11-07 07:43:39,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-11-07 07:43:39,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-11-07 07:43:39,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-11-07 07:43:39,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-07 07:43:39,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-07 07:43:39,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-11-07 07:43:39,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-11-07 07:43:39,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-11-07 07:43:39,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-11-07 07:43:39,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-11-07 07:43:39,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-11-07 07:43:39,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-11-07 07:43:39,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-11-07 07:43:39,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-11-07 07:43:39,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-11-07 07:43:39,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-11-07 07:43:39,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-11-07 07:43:39,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-11-07 07:43:39,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-11-07 07:43:39,378 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-07 07:43:39,378 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-11-07 07:43:39,378 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_get [2021-11-07 07:43:39,379 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_put [2021-11-07 07:43:39,379 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-11-07 07:43:39,379 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-11-07 07:43:39,379 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-07 07:43:39,380 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-07 07:43:39,381 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-07 07:43:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-11-07 07:43:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-11-07 07:43:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-11-07 07:43:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-11-07 07:43:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-11-07 07:43:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-11-07 07:43:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-11-07 07:43:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-11-07 07:43:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-11-07 07:43:39,383 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-11-07 07:43:39,383 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-11-07 07:43:39,383 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-11-07 07:43:39,383 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-11-07 07:43:39,385 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-11-07 07:43:39,385 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-11-07 07:43:39,385 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-11-07 07:43:39,386 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-11-07 07:43:39,386 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-11-07 07:43:39,386 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-11-07 07:43:39,386 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-11-07 07:43:39,386 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-11-07 07:43:39,387 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-11-07 07:43:39,387 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-11-07 07:43:39,387 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-11-07 07:43:39,387 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-11-07 07:43:39,387 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-11-07 07:43:39,387 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-11-07 07:43:39,388 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-11-07 07:43:39,388 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-11-07 07:43:39,389 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-11-07 07:43:39,389 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-11-07 07:43:39,389 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-11-07 07:43:39,389 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-11-07 07:43:39,389 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-11-07 07:43:39,389 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-11-07 07:43:39,390 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-11-07 07:43:39,390 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-11-07 07:43:39,390 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-11-07 07:43:39,390 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-11-07 07:43:39,390 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-11-07 07:43:39,390 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-11-07 07:43:39,390 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-11-07 07:43:39,391 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-11-07 07:43:39,391 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-11-07 07:43:39,391 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-11-07 07:43:39,391 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-11-07 07:43:39,391 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-11-07 07:43:39,391 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-11-07 07:43:39,392 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-11-07 07:43:39,392 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-11-07 07:43:39,392 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-11-07 07:43:39,392 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-11-07 07:43:39,393 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-11-07 07:43:39,393 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-11-07 07:43:39,393 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-11-07 07:43:39,393 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-11-07 07:43:39,393 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-11-07 07:43:39,393 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-11-07 07:43:39,393 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-11-07 07:43:39,394 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-11-07 07:43:39,394 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-11-07 07:43:39,394 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-11-07 07:43:39,394 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-11-07 07:43:39,394 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-11-07 07:43:39,394 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-11-07 07:43:39,394 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-11-07 07:43:39,395 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-11-07 07:43:39,395 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-11-07 07:43:39,395 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-11-07 07:43:39,395 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-11-07 07:43:39,396 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-11-07 07:43:39,396 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-11-07 07:43:39,396 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-11-07 07:43:39,397 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-11-07 07:43:39,397 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-11-07 07:43:39,400 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-11-07 07:43:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-11-07 07:43:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-11-07 07:43:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-11-07 07:43:39,402 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-11-07 07:43:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-11-07 07:43:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-11-07 07:43:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-11-07 07:43:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-11-07 07:43:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-11-07 07:43:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-11-07 07:43:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-11-07 07:43:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-11-07 07:43:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-11-07 07:43:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-11-07 07:43:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-11-07 07:43:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-11-07 07:43:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-11-07 07:43:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-11-07 07:43:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-11-07 07:43:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-11-07 07:43:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-11-07 07:43:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-11-07 07:43:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-11-07 07:43:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-11-07 07:43:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-11-07 07:43:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-11-07 07:43:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-11-07 07:43:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-11-07 07:43:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-11-07 07:43:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-11-07 07:43:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-11-07 07:43:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-07 07:43:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-11-07 07:43:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-11-07 07:43:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-11-07 07:43:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-11-07 07:43:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-11-07 07:43:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-07 07:43:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 07:43:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-07 07:43:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-07 07:43:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-11-07 07:43:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 07:43:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-11-07 07:43:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-11-07 07:43:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-11-07 07:43:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 07:43:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-11-07 07:43:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-11-07 07:43:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-11-07 07:43:39,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-11-07 07:43:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-07 07:43:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-11-07 07:43:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 07:43:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-11-07 07:43:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-11-07 07:43:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-07 07:43:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-07 07:43:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-11-07 07:43:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 07:43:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 07:43:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-11-07 07:43:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-11-07 07:43:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 07:43:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-11-07 07:43:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-11-07 07:43:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-11-07 07:43:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-11-07 07:43:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-11-07 07:43:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-11-07 07:43:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-11-07 07:43:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-11-07 07:43:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-11-07 07:43:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-11-07 07:43:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-11-07 07:43:39,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-07 07:43:39,432 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-07 07:43:39,432 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-11-07 07:43:39,432 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_get [2021-11-07 07:43:39,432 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_put [2021-11-07 07:43:39,432 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-11-07 07:43:39,432 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-11-07 07:43:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-11-07 07:43:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:43:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 07:43:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:43:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-11-07 07:43:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 07:43:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 07:43:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 07:43:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 07:43:40,017 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 07:43:40,397 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 07:43:40,726 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:43:40,726 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-07 07:43:40,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:43:40 BoogieIcfgContainer [2021-11-07 07:43:40,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:43:40,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:43:40,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:43:40,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:43:40,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:43:38" (1/3) ... [2021-11-07 07:43:40,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3947357d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:43:40, skipping insertion in model container [2021-11-07 07:43:40,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:43:39" (2/3) ... [2021-11-07 07:43:40,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3947357d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:43:40, skipping insertion in model container [2021-11-07 07:43:40,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:43:40" (3/3) ... [2021-11-07 07:43:40,752 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_4.i [2021-11-07 07:43:40,758 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:43:40,758 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 71 error locations. [2021-11-07 07:43:40,816 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:43:40,834 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 [2021-11-07 07:43:40,834 INFO L340 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2021-11-07 07:43:40,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 100 states have (on average 1.44) internal successors, (144), 135 states have internal predecessors, (144), 23 states have call successors, (23), 22 states have call predecessors, (23), 22 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-07 07:43:40,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 07:43:40,882 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:40,883 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:40,883 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:43:40,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:40,889 INFO L85 PathProgramCache]: Analyzing trace with hash -604206848, now seen corresponding path program 1 times [2021-11-07 07:43:40,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:43:40,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100304005] [2021-11-07 07:43:40,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:40,901 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:43:40,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:43:40,905 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:43:40,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 07:43:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:41,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 07:43:41,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:43:41,262 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 [2021-11-07 07:43:41,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:41,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:43:41,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:41,422 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:43:41,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100304005] [2021-11-07 07:43:41,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2100304005] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:41,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:41,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 07:43:41,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361159825] [2021-11-07 07:43:41,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:43:41,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:43:41,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:43:41,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:43:41,448 INFO L87 Difference]: Start difference. First operand has 180 states, 100 states have (on average 1.44) internal successors, (144), 135 states have internal predecessors, (144), 23 states have call successors, (23), 22 states have call predecessors, (23), 22 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 07:43:41,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:43:41,710 INFO L93 Difference]: Finished difference Result 160 states and 171 transitions. [2021-11-07 07:43:41,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:43:41,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-11-07 07:43:41,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:43:41,725 INFO L225 Difference]: With dead ends: 160 [2021-11-07 07:43:41,725 INFO L226 Difference]: Without dead ends: 157 [2021-11-07 07:43:41,726 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:43:41,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-11-07 07:43:41,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 151. [2021-11-07 07:43:41,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 85 states have (on average 1.388235294117647) internal successors, (118), 111 states have internal predecessors, (118), 22 states have call successors, (22), 21 states have call predecessors, (22), 21 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2021-11-07 07:43:41,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 162 transitions. [2021-11-07 07:43:41,782 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 162 transitions. Word has length 17 [2021-11-07 07:43:41,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:43:41,783 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 162 transitions. [2021-11-07 07:43:41,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 07:43:41,783 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 162 transitions. [2021-11-07 07:43:41,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 07:43:41,784 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:41,784 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:41,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 07:43:41,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:43:41,995 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_kobject_createErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:43:41,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:41,996 INFO L85 PathProgramCache]: Analyzing trace with hash -604206847, now seen corresponding path program 1 times [2021-11-07 07:43:41,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:43:41,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588750014] [2021-11-07 07:43:41,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:41,997 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:43:41,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:43:41,998 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:43:42,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 07:43:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:42,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 07:43:42,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:43:42,209 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 [2021-11-07 07:43:42,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:42,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:43:42,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:42,737 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:43:42,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588750014] [2021-11-07 07:43:42,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588750014] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:42,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:42,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-07 07:43:42,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088122944] [2021-11-07 07:43:42,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 07:43:42,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:43:42,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 07:43:42,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-07 07:43:42,741 INFO L87 Difference]: Start difference. First operand 151 states and 162 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-07 07:43:43,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:43:43,405 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2021-11-07 07:43:43,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:43:43,406 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2021-11-07 07:43:43,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:43:43,408 INFO L225 Difference]: With dead ends: 156 [2021-11-07 07:43:43,408 INFO L226 Difference]: Without dead ends: 156 [2021-11-07 07:43:43,409 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-07 07:43:43,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-11-07 07:43:43,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 151. [2021-11-07 07:43:43,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 111 states have internal predecessors, (117), 22 states have call successors, (22), 21 states have call predecessors, (22), 21 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2021-11-07 07:43:43,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 161 transitions. [2021-11-07 07:43:43,424 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 161 transitions. Word has length 17 [2021-11-07 07:43:43,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:43:43,424 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 161 transitions. [2021-11-07 07:43:43,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-07 07:43:43,425 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 161 transitions. [2021-11-07 07:43:43,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 07:43:43,426 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:43,426 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:43,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 07:43:43,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:43:43,641 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_kobject_createErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:43:43,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:43,642 INFO L85 PathProgramCache]: Analyzing trace with hash -575577697, now seen corresponding path program 1 times [2021-11-07 07:43:43,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:43:43,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449559035] [2021-11-07 07:43:43,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:43,643 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:43:43,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:43:43,644 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:43:43,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 07:43:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:43,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 07:43:43,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:43:43,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:43,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:43:44,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:44,040 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:43:44,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449559035] [2021-11-07 07:43:44,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449559035] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:44,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:44,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 07:43:44,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939266096] [2021-11-07 07:43:44,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:43:44,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:43:44,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:43:44,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:43:44,046 INFO L87 Difference]: Start difference. First operand 151 states and 161 transitions. 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 07:43:44,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:43:44,088 INFO L93 Difference]: Finished difference Result 150 states and 158 transitions. [2021-11-07 07:43:44,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:43:44,093 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-11-07 07:43:44,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:43:44,095 INFO L225 Difference]: With dead ends: 150 [2021-11-07 07:43:44,095 INFO L226 Difference]: Without dead ends: 150 [2021-11-07 07:43:44,096 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 [2021-11-07 07:43:44,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-07 07:43:44,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2021-11-07 07:43:44,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 83 states have (on average 1.3734939759036144) internal successors, (114), 108 states have internal predecessors, (114), 21 states have call successors, (21), 21 states have call predecessors, (21), 21 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-11-07 07:43:44,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 156 transitions. [2021-11-07 07:43:44,118 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 156 transitions. Word has length 17 [2021-11-07 07:43:44,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:43:44,119 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 156 transitions. [2021-11-07 07:43:44,119 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, (5), 1 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-07 07:43:44,119 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 156 transitions. [2021-11-07 07:43:44,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 07:43:44,120 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:44,120 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:44,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 07:43:44,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:43:44,332 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_atomic_add_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:43:44,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:44,333 INFO L85 PathProgramCache]: Analyzing trace with hash 300911328, now seen corresponding path program 1 times [2021-11-07 07:43:44,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:43:44,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [93292619] [2021-11-07 07:43:44,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:44,335 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:43:44,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:43:44,336 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:43:44,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 07:43:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:44,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 07:43:44,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:43:44,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:44,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:43:44,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:44,788 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:43:44,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [93292619] [2021-11-07 07:43:44,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [93292619] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:44,789 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:44,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 07:43:44,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510320821] [2021-11-07 07:43:44,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:43:44,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:43:44,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:43:44,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:43:44,795 INFO L87 Difference]: Start difference. First operand 148 states and 156 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-07 07:43:44,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:43:44,827 INFO L93 Difference]: Finished difference Result 150 states and 157 transitions. [2021-11-07 07:43:44,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 07:43:44,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2021-11-07 07:43:44,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:43:44,833 INFO L225 Difference]: With dead ends: 150 [2021-11-07 07:43:44,834 INFO L226 Difference]: Without dead ends: 150 [2021-11-07 07:43:44,834 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:43:44,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-07 07:43:44,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2021-11-07 07:43:44,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 108 states have internal predecessors, (113), 21 states have call successors, (21), 21 states have call predecessors, (21), 21 states have return successors, (21), 21 states have call predecessors, (21), 20 states have call successors, (21) [2021-11-07 07:43:44,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 155 transitions. [2021-11-07 07:43:44,862 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 155 transitions. Word has length 29 [2021-11-07 07:43:44,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:43:44,863 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 155 transitions. [2021-11-07 07:43:44,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-07 07:43:44,863 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 155 transitions. [2021-11-07 07:43:44,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-07 07:43:44,865 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:44,865 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:44,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 07:43:45,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:43:45,077 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_atomic_add_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:43:45,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:45,077 INFO L85 PathProgramCache]: Analyzing trace with hash -696161025, now seen corresponding path program 1 times [2021-11-07 07:43:45,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:43:45,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074487007] [2021-11-07 07:43:45,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:45,079 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:43:45,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:43:45,080 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:43:45,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 07:43:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:45,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 07:43:45,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:43:45,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:45,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:43:45,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:45,668 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:43:45,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074487007] [2021-11-07 07:43:45,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074487007] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:45,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:45,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-11-07 07:43:45,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847576613] [2021-11-07 07:43:45,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:43:45,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:43:45,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:43:45,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:43:45,671 INFO L87 Difference]: Start difference. First operand 148 states and 155 transitions. Second operand has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-07 07:43:45,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:43:45,769 INFO L93 Difference]: Finished difference Result 168 states and 176 transitions. [2021-11-07 07:43:45,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 07:43:45,770 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2021-11-07 07:43:45,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:43:45,771 INFO L225 Difference]: With dead ends: 168 [2021-11-07 07:43:45,772 INFO L226 Difference]: Without dead ends: 168 [2021-11-07 07:43:45,772 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-07 07:43:45,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-07 07:43:45,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 162. [2021-11-07 07:43:45,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 92 states have (on average 1.326086956521739) internal successors, (122), 118 states have internal predecessors, (122), 23 states have call successors, (23), 23 states have call predecessors, (23), 24 states have return successors, (24), 23 states have call predecessors, (24), 22 states have call successors, (24) [2021-11-07 07:43:45,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 169 transitions. [2021-11-07 07:43:45,781 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 169 transitions. Word has length 29 [2021-11-07 07:43:45,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:43:45,782 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 169 transitions. [2021-11-07 07:43:45,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-07 07:43:45,782 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 169 transitions. [2021-11-07 07:43:45,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 07:43:45,783 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:45,783 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:45,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 07:43:45,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:43:45,995 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:43:45,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:45,996 INFO L85 PathProgramCache]: Analyzing trace with hash 536113147, now seen corresponding path program 1 times [2021-11-07 07:43:45,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:43:45,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588161173] [2021-11-07 07:43:45,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:45,996 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:43:45,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:43:45,998 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:43:46,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 07:43:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:46,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 07:43:46,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:43:46,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:46,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:43:46,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:46,459 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:43:46,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588161173] [2021-11-07 07:43:46,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1588161173] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:46,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:46,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 07:43:46,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649854292] [2021-11-07 07:43:46,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 07:43:46,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:43:46,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 07:43:46,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:43:46,465 INFO L87 Difference]: Start difference. First operand 162 states and 169 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-07 07:43:46,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:43:46,506 INFO L93 Difference]: Finished difference Result 168 states and 175 transitions. [2021-11-07 07:43:46,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:43:46,508 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2021-11-07 07:43:46,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:43:46,511 INFO L225 Difference]: With dead ends: 168 [2021-11-07 07:43:46,511 INFO L226 Difference]: Without dead ends: 164 [2021-11-07 07:43:46,511 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:43:46,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-11-07 07:43:46,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2021-11-07 07:43:46,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 94 states have (on average 1.3191489361702127) internal successors, (124), 120 states have internal predecessors, (124), 23 states have call successors, (23), 23 states have call predecessors, (23), 24 states have return successors, (24), 23 states have call predecessors, (24), 22 states have call successors, (24) [2021-11-07 07:43:46,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 171 transitions. [2021-11-07 07:43:46,519 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 171 transitions. Word has length 32 [2021-11-07 07:43:46,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:43:46,519 INFO L470 AbstractCegarLoop]: Abstraction has 164 states and 171 transitions. [2021-11-07 07:43:46,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-07 07:43:46,519 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 171 transitions. [2021-11-07 07:43:46,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 07:43:46,521 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:46,521 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:46,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 07:43:46,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:43:46,738 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:43:46,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:46,739 INFO L85 PathProgramCache]: Analyzing trace with hash 690495131, now seen corresponding path program 1 times [2021-11-07 07:43:46,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:43:46,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169524677] [2021-11-07 07:43:46,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:46,740 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:43:46,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:43:46,741 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:43:46,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 07:43:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:47,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 07:43:47,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:43:47,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:47,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:43:47,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:47,310 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:43:47,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169524677] [2021-11-07 07:43:47,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169524677] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 07:43:47,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:43:47,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-11-07 07:43:47,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800793408] [2021-11-07 07:43:47,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 07:43:47,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:43:47,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 07:43:47,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-07 07:43:47,318 INFO L87 Difference]: Start difference. First operand 164 states and 171 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-07 07:43:47,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:43:47,507 INFO L93 Difference]: Finished difference Result 172 states and 181 transitions. [2021-11-07 07:43:47,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 07:43:47,508 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2021-11-07 07:43:47,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:43:47,509 INFO L225 Difference]: With dead ends: 172 [2021-11-07 07:43:47,509 INFO L226 Difference]: Without dead ends: 168 [2021-11-07 07:43:47,510 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-11-07 07:43:47,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-07 07:43:47,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2021-11-07 07:43:47,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 124 states have internal predecessors, (128), 23 states have call successors, (23), 23 states have call predecessors, (23), 24 states have return successors, (24), 23 states have call predecessors, (24), 22 states have call successors, (24) [2021-11-07 07:43:47,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 175 transitions. [2021-11-07 07:43:47,518 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 175 transitions. Word has length 34 [2021-11-07 07:43:47,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:43:47,518 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 175 transitions. [2021-11-07 07:43:47,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-07 07:43:47,519 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 175 transitions. [2021-11-07 07:43:47,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-07 07:43:47,520 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:47,521 INFO L513 BasicCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:47,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 07:43:47,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:43:47,732 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_kref_initErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:43:47,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:47,733 INFO L85 PathProgramCache]: Analyzing trace with hash -2002385957, now seen corresponding path program 2 times [2021-11-07 07:43:47,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:43:47,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770505318] [2021-11-07 07:43:47,734 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:43:47,734 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:43:47,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:43:47,738 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:43:47,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 07:43:47,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 07:43:47,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:43:47,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:43:47,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:43:47,989 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 [2021-11-07 07:43:48,267 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-07 07:43:48,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:43:48,477 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-07 07:43:48,477 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:43:48,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770505318] [2021-11-07 07:43:48,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [770505318] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:48,478 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:48,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-11-07 07:43:48,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719389290] [2021-11-07 07:43:48,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 07:43:48,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:43:48,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 07:43:48,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:43:48,480 INFO L87 Difference]: Start difference. First operand 168 states and 175 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-07 07:43:49,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:43:49,411 INFO L93 Difference]: Finished difference Result 179 states and 185 transitions. [2021-11-07 07:43:49,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 07:43:49,411 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2021-11-07 07:43:49,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:43:49,413 INFO L225 Difference]: With dead ends: 179 [2021-11-07 07:43:49,413 INFO L226 Difference]: Without dead ends: 179 [2021-11-07 07:43:49,413 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 56 SyntacticMatches, 9 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-07 07:43:49,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-11-07 07:43:49,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 167. [2021-11-07 07:43:49,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 98 states have (on average 1.2959183673469388) internal successors, (127), 123 states have internal predecessors, (127), 23 states have call successors, (23), 23 states have call predecessors, (23), 24 states have return successors, (24), 23 states have call predecessors, (24), 22 states have call successors, (24) [2021-11-07 07:43:49,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 174 transitions. [2021-11-07 07:43:49,420 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 174 transitions. Word has length 38 [2021-11-07 07:43:49,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:43:49,420 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 174 transitions. [2021-11-07 07:43:49,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-07 07:43:49,421 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 174 transitions. [2021-11-07 07:43:49,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-07 07:43:49,422 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:49,423 INFO L513 BasicCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:49,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 07:43:49,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:43:49,634 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:43:49,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:49,634 INFO L85 PathProgramCache]: Analyzing trace with hash -2002385956, now seen corresponding path program 1 times [2021-11-07 07:43:49,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:43:49,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799667429] [2021-11-07 07:43:49,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:49,635 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:43:49,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:43:49,638 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:43:49,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 07:43:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:49,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 07:43:49,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:43:50,089 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:50,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:43:50,538 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:50,539 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:43:50,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799667429] [2021-11-07 07:43:50,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799667429] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 07:43:50,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:43:50,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-11-07 07:43:50,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655999027] [2021-11-07 07:43:50,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-07 07:43:50,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:43:50,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-07 07:43:50,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-11-07 07:43:50,541 INFO L87 Difference]: Start difference. First operand 167 states and 174 transitions. Second operand has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-07 07:43:51,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:43:51,203 INFO L93 Difference]: Finished difference Result 179 states and 192 transitions. [2021-11-07 07:43:51,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 07:43:51,210 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2021-11-07 07:43:51,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:43:51,212 INFO L225 Difference]: With dead ends: 179 [2021-11-07 07:43:51,212 INFO L226 Difference]: Without dead ends: 175 [2021-11-07 07:43:51,213 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2021-11-07 07:43:51,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-11-07 07:43:51,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2021-11-07 07:43:51,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 106 states have (on average 1.2735849056603774) internal successors, (135), 131 states have internal predecessors, (135), 23 states have call successors, (23), 23 states have call predecessors, (23), 24 states have return successors, (24), 23 states have call predecessors, (24), 22 states have call successors, (24) [2021-11-07 07:43:51,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 182 transitions. [2021-11-07 07:43:51,220 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 182 transitions. Word has length 38 [2021-11-07 07:43:51,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:43:51,220 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 182 transitions. [2021-11-07 07:43:51,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 18 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-07 07:43:51,221 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 182 transitions. [2021-11-07 07:43:51,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 07:43:51,222 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:51,223 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:51,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 07:43:51,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:43:51,435 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:43:51,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:51,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1347385061, now seen corresponding path program 1 times [2021-11-07 07:43:51,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:43:51,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87595278] [2021-11-07 07:43:51,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:51,436 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:43:51,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:43:51,437 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:43:51,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 07:43:51,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:51,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:43:51,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:43:51,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:51,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:43:52,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:52,124 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:43:52,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87595278] [2021-11-07 07:43:52,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87595278] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:52,125 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:52,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-07 07:43:52,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356694321] [2021-11-07 07:43:52,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 07:43:52,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:43:52,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 07:43:52,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:43:52,129 INFO L87 Difference]: Start difference. First operand 175 states and 182 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-07 07:43:52,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:43:52,185 INFO L93 Difference]: Finished difference Result 184 states and 191 transitions. [2021-11-07 07:43:52,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 07:43:52,187 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2021-11-07 07:43:52,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:43:52,189 INFO L225 Difference]: With dead ends: 184 [2021-11-07 07:43:52,189 INFO L226 Difference]: Without dead ends: 184 [2021-11-07 07:43:52,189 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:43:52,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-11-07 07:43:52,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 180. [2021-11-07 07:43:52,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 109 states have (on average 1.2660550458715596) internal successors, (138), 134 states have internal predecessors, (138), 24 states have call successors, (24), 24 states have call predecessors, (24), 25 states have return successors, (25), 24 states have call predecessors, (25), 23 states have call successors, (25) [2021-11-07 07:43:52,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 187 transitions. [2021-11-07 07:43:52,201 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 187 transitions. Word has length 40 [2021-11-07 07:43:52,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:43:52,201 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 187 transitions. [2021-11-07 07:43:52,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-07 07:43:52,202 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 187 transitions. [2021-11-07 07:43:52,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-07 07:43:52,203 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:52,203 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:52,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 07:43:52,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:43:52,404 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:43:52,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:52,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1156201438, now seen corresponding path program 1 times [2021-11-07 07:43:52,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:43:52,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [117711334] [2021-11-07 07:43:52,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:52,405 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:43:52,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:43:52,406 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:43:52,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 07:43:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:52,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 07:43:52,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:43:52,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:52,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:43:53,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:53,028 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:43:53,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [117711334] [2021-11-07 07:43:53,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [117711334] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:53,028 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:53,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 07:43:53,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403626851] [2021-11-07 07:43:53,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:43:53,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:43:53,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:43:53,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:43:53,030 INFO L87 Difference]: Start difference. First operand 180 states and 187 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-07 07:43:53,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:43:53,208 INFO L93 Difference]: Finished difference Result 191 states and 197 transitions. [2021-11-07 07:43:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:43:53,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 38 [2021-11-07 07:43:53,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:43:53,210 INFO L225 Difference]: With dead ends: 191 [2021-11-07 07:43:53,210 INFO L226 Difference]: Without dead ends: 165 [2021-11-07 07:43:53,210 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:43:53,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-11-07 07:43:53,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 157. [2021-11-07 07:43:53,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 94 states have (on average 1.297872340425532) internal successors, (122), 118 states have internal predecessors, (122), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 07:43:53,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 163 transitions. [2021-11-07 07:43:53,216 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 163 transitions. Word has length 38 [2021-11-07 07:43:53,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:43:53,216 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 163 transitions. [2021-11-07 07:43:53,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-07 07:43:53,216 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 163 transitions. [2021-11-07 07:43:53,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-07 07:43:53,217 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:53,223 INFO L513 BasicCegarLoop]: trace histogram [14, 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, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:53,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 07:43:53,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:43:53,434 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_kref_initErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:43:53,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:53,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1528032860, now seen corresponding path program 2 times [2021-11-07 07:43:53,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:43:53,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709819145] [2021-11-07 07:43:53,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:43:53,435 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:43:53,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:43:53,436 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:43:53,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 07:43:53,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 07:43:53,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:43:53,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-07 07:43:53,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:43:53,769 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 [2021-11-07 07:43:54,209 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-07 07:43:54,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:43:55,431 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-07 07:43:55,431 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:43:55,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709819145] [2021-11-07 07:43:55,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709819145] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:43:55,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:43:55,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-11-07 07:43:55,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788287920] [2021-11-07 07:43:55,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-07 07:43:55,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:43:55,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-07 07:43:55,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-11-07 07:43:55,434 INFO L87 Difference]: Start difference. First operand 157 states and 163 transitions. Second operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-07 07:43:57,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:43:57,794 INFO L93 Difference]: Finished difference Result 156 states and 162 transitions. [2021-11-07 07:43:57,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 07:43:57,795 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2021-11-07 07:43:57,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:43:57,796 INFO L225 Difference]: With dead ends: 156 [2021-11-07 07:43:57,796 INFO L226 Difference]: Without dead ends: 156 [2021-11-07 07:43:57,797 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-11-07 07:43:57,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-11-07 07:43:57,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-11-07 07:43:57,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 94 states have (on average 1.2872340425531914) internal successors, (121), 117 states have internal predecessors, (121), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 07:43:57,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 162 transitions. [2021-11-07 07:43:57,803 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 162 transitions. Word has length 46 [2021-11-07 07:43:57,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:43:57,803 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 162 transitions. [2021-11-07 07:43:57,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 15 states have internal predecessors, (38), 7 states have call successors, (13), 8 states have call predecessors, (13), 4 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-07 07:43:57,804 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 162 transitions. [2021-11-07 07:43:57,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 07:43:57,807 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:43:57,807 INFO L513 BasicCegarLoop]: trace histogram [14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:43:57,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 07:43:58,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:43:58,008 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:43:58,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:43:58,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1472640772, now seen corresponding path program 1 times [2021-11-07 07:43:58,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:43:58,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466650955] [2021-11-07 07:43:58,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:43:58,009 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:43:58,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:43:58,010 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:43:58,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 07:43:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:43:58,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 07:43:58,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:43:58,655 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:58,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:43:59,593 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:43:59,593 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:43:59,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466650955] [2021-11-07 07:43:59,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [466650955] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 07:43:59,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:43:59,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-11-07 07:43:59,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916586714] [2021-11-07 07:43:59,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-07 07:43:59,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:43:59,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-07 07:43:59,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2021-11-07 07:43:59,596 INFO L87 Difference]: Start difference. First operand 156 states and 162 transitions. Second operand has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-07 07:44:00,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:44:00,103 INFO L93 Difference]: Finished difference Result 162 states and 168 transitions. [2021-11-07 07:44:00,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-07 07:44:00,105 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2021-11-07 07:44:00,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:44:00,107 INFO L225 Difference]: With dead ends: 162 [2021-11-07 07:44:00,107 INFO L226 Difference]: Without dead ends: 158 [2021-11-07 07:44:00,108 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2021-11-07 07:44:00,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-11-07 07:44:00,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2021-11-07 07:44:00,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 96 states have (on average 1.28125) internal successors, (123), 119 states have internal predecessors, (123), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 07:44:00,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 164 transitions. [2021-11-07 07:44:00,115 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 164 transitions. Word has length 51 [2021-11-07 07:44:00,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:44:00,116 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 164 transitions. [2021-11-07 07:44:00,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 34 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-07 07:44:00,116 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 164 transitions. [2021-11-07 07:44:00,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 07:44:00,117 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:44:00,117 INFO L513 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:44:00,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-07 07:44:00,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:44:00,339 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:44:00,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:44:00,339 INFO L85 PathProgramCache]: Analyzing trace with hash 680412260, now seen corresponding path program 2 times [2021-11-07 07:44:00,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:44:00,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261061684] [2021-11-07 07:44:00,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:44:00,340 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:44:00,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:44:00,342 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:44:00,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-07 07:44:00,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 07:44:00,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:44:00,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:44:00,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:44:00,749 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 [2021-11-07 07:44:01,091 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:01,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:44:01,338 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:01,338 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:44:01,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [261061684] [2021-11-07 07:44:01,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [261061684] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:44:01,338 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:44:01,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 11 [2021-11-07 07:44:01,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704247389] [2021-11-07 07:44:01,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 07:44:01,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:44:01,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 07:44:01,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:44:01,340 INFO L87 Difference]: Start difference. First operand 158 states and 164 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-07 07:44:02,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:44:02,112 INFO L93 Difference]: Finished difference Result 168 states and 173 transitions. [2021-11-07 07:44:02,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 07:44:02,113 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2021-11-07 07:44:02,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:44:02,115 INFO L225 Difference]: With dead ends: 168 [2021-11-07 07:44:02,115 INFO L226 Difference]: Without dead ends: 168 [2021-11-07 07:44:02,115 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 85 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-07 07:44:02,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-07 07:44:02,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 156. [2021-11-07 07:44:02,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 96 states have (on average 1.2604166666666667) internal successors, (121), 117 states have internal predecessors, (121), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 07:44:02,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 162 transitions. [2021-11-07 07:44:02,121 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 162 transitions. Word has length 53 [2021-11-07 07:44:02,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:44:02,121 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 162 transitions. [2021-11-07 07:44:02,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 8 states have internal predecessors, (32), 4 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-07 07:44:02,122 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 162 transitions. [2021-11-07 07:44:02,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 07:44:02,122 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:44:02,123 INFO L513 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:44:02,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-07 07:44:02,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:44:02,335 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:44:02,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:44:02,335 INFO L85 PathProgramCache]: Analyzing trace with hash 680412261, now seen corresponding path program 1 times [2021-11-07 07:44:02,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:44:02,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737693375] [2021-11-07 07:44:02,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:44:02,336 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:44:02,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:44:02,337 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:44:02,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-07 07:44:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:44:02,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-07 07:44:02,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:44:02,781 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 [2021-11-07 07:44:03,242 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:03,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:44:04,439 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:04,439 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:44:04,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737693375] [2021-11-07 07:44:04,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737693375] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:44:04,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:44:04,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2021-11-07 07:44:04,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553718065] [2021-11-07 07:44:04,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-07 07:44:04,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:44:04,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-07 07:44:04,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-11-07 07:44:04,441 INFO L87 Difference]: Start difference. First operand 156 states and 162 transitions. Second operand has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-11-07 07:44:06,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:44:06,653 INFO L93 Difference]: Finished difference Result 154 states and 160 transitions. [2021-11-07 07:44:06,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 07:44:06,654 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) Word has length 53 [2021-11-07 07:44:06,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:44:06,655 INFO L225 Difference]: With dead ends: 154 [2021-11-07 07:44:06,655 INFO L226 Difference]: Without dead ends: 154 [2021-11-07 07:44:06,656 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2021-11-07 07:44:06,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-07 07:44:06,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-11-07 07:44:06,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 96 states have (on average 1.2395833333333333) internal successors, (119), 115 states have internal predecessors, (119), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 07:44:06,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 160 transitions. [2021-11-07 07:44:06,661 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 160 transitions. Word has length 53 [2021-11-07 07:44:06,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:44:06,661 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 160 transitions. [2021-11-07 07:44:06,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (15), 8 states have call predecessors, (15), 4 states have return successors, (7), 7 states have call predecessors, (7), 5 states have call successors, (7) [2021-11-07 07:44:06,662 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 160 transitions. [2021-11-07 07:44:06,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 07:44:06,662 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:44:06,663 INFO L513 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:44:06,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-07 07:44:06,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:44:06,874 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_atomic_add_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:44:06,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:44:06,875 INFO L85 PathProgramCache]: Analyzing trace with hash -2141011139, now seen corresponding path program 1 times [2021-11-07 07:44:06,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:44:06,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373338693] [2021-11-07 07:44:06,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:44:06,875 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:44:06,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:44:06,877 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:44:06,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-07 07:44:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:44:07,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 07:44:07,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:44:07,522 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:07,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:44:07,766 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:07,766 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:44:07,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373338693] [2021-11-07 07:44:07,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [373338693] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:44:07,767 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:44:07,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-11-07 07:44:07,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672405181] [2021-11-07 07:44:07,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 07:44:07,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:44:07,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 07:44:07,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:44:07,769 INFO L87 Difference]: Start difference. First operand 154 states and 160 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-07 07:44:07,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:44:07,814 INFO L93 Difference]: Finished difference Result 156 states and 161 transitions. [2021-11-07 07:44:07,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:44:07,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2021-11-07 07:44:07,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:44:07,817 INFO L225 Difference]: With dead ends: 156 [2021-11-07 07:44:07,817 INFO L226 Difference]: Without dead ends: 154 [2021-11-07 07:44:07,817 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:44:07,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-07 07:44:07,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-11-07 07:44:07,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 96 states have (on average 1.2291666666666667) internal successors, (118), 114 states have internal predecessors, (118), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 07:44:07,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 159 transitions. [2021-11-07 07:44:07,826 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 159 transitions. Word has length 58 [2021-11-07 07:44:07,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:44:07,826 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 159 transitions. [2021-11-07 07:44:07,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-07 07:44:07,827 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 159 transitions. [2021-11-07 07:44:07,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-07 07:44:07,828 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:44:07,828 INFO L513 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:44:07,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-07 07:44:08,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:44:08,041 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_atomic_add_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:44:08,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:44:08,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1283825080, now seen corresponding path program 1 times [2021-11-07 07:44:08,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:44:08,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670168627] [2021-11-07 07:44:08,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:44:08,042 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:44:08,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:44:08,043 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:44:08,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-07 07:44:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:44:08,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 07:44:08,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:44:08,674 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:08,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:44:08,987 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:08,987 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:44:08,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670168627] [2021-11-07 07:44:08,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1670168627] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:44:08,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:44:08,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-11-07 07:44:08,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706299833] [2021-11-07 07:44:08,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 07:44:08,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:44:08,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 07:44:08,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-07 07:44:08,989 INFO L87 Difference]: Start difference. First operand 154 states and 159 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-11-07 07:44:09,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:44:09,067 INFO L93 Difference]: Finished difference Result 158 states and 162 transitions. [2021-11-07 07:44:09,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:44:09,067 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 63 [2021-11-07 07:44:09,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:44:09,069 INFO L225 Difference]: With dead ends: 158 [2021-11-07 07:44:09,070 INFO L226 Difference]: Without dead ends: 154 [2021-11-07 07:44:09,070 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 07:44:09,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-07 07:44:09,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-11-07 07:44:09,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 96 states have (on average 1.21875) internal successors, (117), 113 states have internal predecessors, (117), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 07:44:09,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 158 transitions. [2021-11-07 07:44:09,080 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 158 transitions. Word has length 63 [2021-11-07 07:44:09,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:44:09,081 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 158 transitions. [2021-11-07 07:44:09,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 5 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-11-07 07:44:09,081 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 158 transitions. [2021-11-07 07:44:09,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 07:44:09,082 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:44:09,082 INFO L513 BasicCegarLoop]: trace histogram [16, 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, 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, 1, 1, 1, 1, 1, 1] [2021-11-07 07:44:09,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-07 07:44:09,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:44:09,295 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_atomic_add_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:44:09,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:44:09,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1405000591, now seen corresponding path program 1 times [2021-11-07 07:44:09,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:44:09,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608096546] [2021-11-07 07:44:09,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:44:09,297 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:44:09,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:44:09,297 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:44:09,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-07 07:44:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:44:09,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 07:44:09,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:44:09,904 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 [2021-11-07 07:44:10,405 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:10,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:44:10,836 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:10,837 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:44:10,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608096546] [2021-11-07 07:44:10,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608096546] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:44:10,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:44:10,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 15] imperfect sequences [] total 16 [2021-11-07 07:44:10,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360202347] [2021-11-07 07:44:10,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-07 07:44:10,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:44:10,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-07 07:44:10,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-11-07 07:44:10,839 INFO L87 Difference]: Start difference. First operand 154 states and 158 transitions. Second operand has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-07 07:44:11,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:44:11,864 INFO L93 Difference]: Finished difference Result 164 states and 167 transitions. [2021-11-07 07:44:11,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 07:44:11,865 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 74 [2021-11-07 07:44:11,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:44:11,866 INFO L225 Difference]: With dead ends: 164 [2021-11-07 07:44:11,866 INFO L226 Difference]: Without dead ends: 164 [2021-11-07 07:44:11,867 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 117 SyntacticMatches, 15 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2021-11-07 07:44:11,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-11-07 07:44:11,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 152. [2021-11-07 07:44:11,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 96 states have (on average 1.1979166666666667) internal successors, (115), 111 states have internal predecessors, (115), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 07:44:11,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 156 transitions. [2021-11-07 07:44:11,872 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 156 transitions. Word has length 74 [2021-11-07 07:44:11,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:44:11,873 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 156 transitions. [2021-11-07 07:44:11,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 4.230769230769231) internal successors, (55), 11 states have internal predecessors, (55), 7 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-07 07:44:11,873 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 156 transitions. [2021-11-07 07:44:11,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 07:44:11,883 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:44:11,883 INFO L513 BasicCegarLoop]: trace histogram [16, 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, 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, 1, 1, 1, 1, 1, 1] [2021-11-07 07:44:11,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-07 07:44:12,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:44:12,094 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_atomic_add_returnErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:44:12,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:44:12,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1405000592, now seen corresponding path program 1 times [2021-11-07 07:44:12,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:44:12,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201783056] [2021-11-07 07:44:12,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:44:12,095 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:44:12,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:44:12,096 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:44:12,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-07 07:44:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:44:12,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-07 07:44:12,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:44:12,797 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 [2021-11-07 07:44:13,502 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:13,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:44:15,447 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:15,447 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:44:15,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201783056] [2021-11-07 07:44:15,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201783056] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:44:15,448 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:44:15,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 16] imperfect sequences [] total 32 [2021-11-07 07:44:15,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952915189] [2021-11-07 07:44:15,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-07 07:44:15,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:44:15,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-07 07:44:15,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2021-11-07 07:44:15,450 INFO L87 Difference]: Start difference. First operand 152 states and 156 transitions. Second operand has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-07 07:44:19,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:44:19,029 INFO L93 Difference]: Finished difference Result 150 states and 154 transitions. [2021-11-07 07:44:19,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 07:44:19,030 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) Word has length 74 [2021-11-07 07:44:19,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:44:19,031 INFO L225 Difference]: With dead ends: 150 [2021-11-07 07:44:19,031 INFO L226 Difference]: Without dead ends: 150 [2021-11-07 07:44:19,032 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 113 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=132, Invalid=1350, Unknown=0, NotChecked=0, Total=1482 [2021-11-07 07:44:19,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-07 07:44:19,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2021-11-07 07:44:19,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 96 states have (on average 1.1770833333333333) internal successors, (113), 109 states have internal predecessors, (113), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 07:44:19,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 154 transitions. [2021-11-07 07:44:19,037 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 154 transitions. Word has length 74 [2021-11-07 07:44:19,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:44:19,037 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 154 transitions. [2021-11-07 07:44:19,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 26 states have (on average 2.6923076923076925) internal successors, (70), 21 states have internal predecessors, (70), 12 states have call successors, (23), 10 states have call predecessors, (23), 6 states have return successors, (15), 8 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-07 07:44:19,038 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 154 transitions. [2021-11-07 07:44:19,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 07:44:19,039 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:44:19,039 INFO L513 BasicCegarLoop]: trace histogram [16, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:44:19,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-11-07 07:44:19,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:44:19,252 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:44:19,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:44:19,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1519816277, now seen corresponding path program 1 times [2021-11-07 07:44:19,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:44:19,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775122756] [2021-11-07 07:44:19,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:44:19,254 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:44:19,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:44:19,256 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:44:19,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-07 07:44:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:44:19,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:44:19,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:44:20,139 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:20,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:44:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:20,548 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:44:20,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775122756] [2021-11-07 07:44:20,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775122756] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:44:20,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:44:20,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 14 [2021-11-07 07:44:20,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388877052] [2021-11-07 07:44:20,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 07:44:20,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:44:20,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 07:44:20,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-07 07:44:20,550 INFO L87 Difference]: Start difference. First operand 150 states and 154 transitions. Second operand has 14 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 6 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2021-11-07 07:44:20,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:44:20,703 INFO L93 Difference]: Finished difference Result 156 states and 159 transitions. [2021-11-07 07:44:20,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 07:44:20,707 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 6 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 85 [2021-11-07 07:44:20,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:44:20,709 INFO L225 Difference]: With dead ends: 156 [2021-11-07 07:44:20,709 INFO L226 Difference]: Without dead ends: 150 [2021-11-07 07:44:20,709 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-11-07 07:44:20,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-07 07:44:20,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2021-11-07 07:44:20,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 96 states have (on average 1.1666666666666667) internal successors, (112), 108 states have internal predecessors, (112), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 07:44:20,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 153 transitions. [2021-11-07 07:44:20,714 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 153 transitions. Word has length 85 [2021-11-07 07:44:20,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:44:20,714 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 153 transitions. [2021-11-07 07:44:20,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 6 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2021-11-07 07:44:20,714 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 153 transitions. [2021-11-07 07:44:20,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-07 07:44:20,715 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:44:20,716 INFO L513 BasicCegarLoop]: trace histogram [16, 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, 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, 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, 1, 1, 1, 1] [2021-11-07 07:44:20,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-07 07:44:20,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:44:20,932 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_atomic_sub_returnErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:44:20,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:44:20,933 INFO L85 PathProgramCache]: Analyzing trace with hash 2050797402, now seen corresponding path program 1 times [2021-11-07 07:44:20,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:44:20,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340085669] [2021-11-07 07:44:20,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:44:20,933 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:44:20,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:44:20,934 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:44:20,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-07 07:44:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:44:21,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-07 07:44:21,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:44:21,655 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 [2021-11-07 07:44:22,341 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:22,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:44:22,773 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:22,773 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:44:22,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340085669] [2021-11-07 07:44:22,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340085669] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:44:22,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:44:22,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16, 15] imperfect sequences [] total 16 [2021-11-07 07:44:22,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472989142] [2021-11-07 07:44:22,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-07 07:44:22,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:44:22,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-07 07:44:22,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-11-07 07:44:22,776 INFO L87 Difference]: Start difference. First operand 150 states and 153 transitions. Second operand has 17 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 11 states have internal predecessors, (87), 7 states have call successors, (27), 6 states have call predecessors, (27), 4 states have return successors, (21), 6 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-07 07:44:23,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:44:23,973 INFO L93 Difference]: Finished difference Result 164 states and 166 transitions. [2021-11-07 07:44:23,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 07:44:23,974 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 11 states have internal predecessors, (87), 7 states have call successors, (27), 6 states have call predecessors, (27), 4 states have return successors, (21), 6 states have call predecessors, (21), 4 states have call successors, (21) Word has length 98 [2021-11-07 07:44:23,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:44:23,975 INFO L225 Difference]: With dead ends: 164 [2021-11-07 07:44:23,975 INFO L226 Difference]: Without dead ends: 164 [2021-11-07 07:44:23,976 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 163 SyntacticMatches, 17 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2021-11-07 07:44:23,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-11-07 07:44:23,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 148. [2021-11-07 07:44:23,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 96 states have (on average 1.1458333333333333) internal successors, (110), 106 states have internal predecessors, (110), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 07:44:23,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 151 transitions. [2021-11-07 07:44:23,980 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 151 transitions. Word has length 98 [2021-11-07 07:44:23,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:44:23,981 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 151 transitions. [2021-11-07 07:44:23,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 11 states have internal predecessors, (87), 7 states have call successors, (27), 6 states have call predecessors, (27), 4 states have return successors, (21), 6 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-07 07:44:23,981 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 151 transitions. [2021-11-07 07:44:23,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-07 07:44:23,983 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:44:23,983 INFO L513 BasicCegarLoop]: trace histogram [16, 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, 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, 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, 1, 1, 1, 1] [2021-11-07 07:44:24,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-07 07:44:24,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:44:24,196 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_atomic_sub_returnErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:44:24,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:44:24,196 INFO L85 PathProgramCache]: Analyzing trace with hash 2050797403, now seen corresponding path program 1 times [2021-11-07 07:44:24,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:44:24,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1374178435] [2021-11-07 07:44:24,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:44:24,197 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:44:24,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:44:24,198 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:44:24,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-07 07:44:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:44:24,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-07 07:44:24,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:44:25,008 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 [2021-11-07 07:44:25,872 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:25,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:44:27,969 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:27,970 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:44:27,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1374178435] [2021-11-07 07:44:27,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1374178435] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:44:27,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:44:27,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17, 16] imperfect sequences [] total 32 [2021-11-07 07:44:27,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046810293] [2021-11-07 07:44:27,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-07 07:44:27,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:44:27,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-07 07:44:27,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=965, Unknown=0, NotChecked=0, Total=1056 [2021-11-07 07:44:27,972 INFO L87 Difference]: Start difference. First operand 148 states and 151 transitions. Second operand has 33 states, 26 states have (on average 3.923076923076923) internal successors, (102), 21 states have internal predecessors, (102), 12 states have call successors, (31), 10 states have call predecessors, (31), 6 states have return successors, (23), 10 states have call predecessors, (23), 6 states have call successors, (23) [2021-11-07 07:44:31,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:44:31,701 INFO L93 Difference]: Finished difference Result 146 states and 149 transitions. [2021-11-07 07:44:31,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 07:44:31,704 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 26 states have (on average 3.923076923076923) internal successors, (102), 21 states have internal predecessors, (102), 12 states have call successors, (31), 10 states have call predecessors, (31), 6 states have return successors, (23), 10 states have call predecessors, (23), 6 states have call successors, (23) Word has length 98 [2021-11-07 07:44:31,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:44:31,705 INFO L225 Difference]: With dead ends: 146 [2021-11-07 07:44:31,705 INFO L226 Difference]: Without dead ends: 146 [2021-11-07 07:44:31,706 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 159 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=132, Invalid=1350, Unknown=0, NotChecked=0, Total=1482 [2021-11-07 07:44:31,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-07 07:44:31,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-11-07 07:44:31,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 96 states have (on average 1.125) internal successors, (108), 104 states have internal predecessors, (108), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 07:44:31,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 149 transitions. [2021-11-07 07:44:31,711 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 149 transitions. Word has length 98 [2021-11-07 07:44:31,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:44:31,711 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 149 transitions. [2021-11-07 07:44:31,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 26 states have (on average 3.923076923076923) internal successors, (102), 21 states have internal predecessors, (102), 12 states have call successors, (31), 10 states have call predecessors, (31), 6 states have return successors, (23), 10 states have call predecessors, (23), 6 states have call successors, (23) [2021-11-07 07:44:31,711 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 149 transitions. [2021-11-07 07:44:31,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-07 07:44:31,712 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:44:31,712 INFO L513 BasicCegarLoop]: trace histogram [16, 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, 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, 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, 1, 1] [2021-11-07 07:44:31,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-07 07:44:31,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:44:31,928 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:44:31,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:44:31,928 INFO L85 PathProgramCache]: Analyzing trace with hash -797927977, now seen corresponding path program 1 times [2021-11-07 07:44:31,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:44:31,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862242306] [2021-11-07 07:44:31,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:44:31,929 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:44:31,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:44:31,930 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:44:31,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-07 07:44:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:44:32,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 07:44:32,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:44:32,922 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:32,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:44:33,304 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:33,304 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:44:33,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862242306] [2021-11-07 07:44:33,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1862242306] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:44:33,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:44:33,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2021-11-07 07:44:33,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528152019] [2021-11-07 07:44:33,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 07:44:33,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:44:33,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 07:44:33,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-07 07:44:33,306 INFO L87 Difference]: Start difference. First operand 146 states and 149 transitions. Second operand has 11 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (15), 1 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-07 07:44:33,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:44:33,359 INFO L93 Difference]: Finished difference Result 148 states and 150 transitions. [2021-11-07 07:44:33,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 07:44:33,373 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (15), 1 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14) Word has length 96 [2021-11-07 07:44:33,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:44:33,375 INFO L225 Difference]: With dead ends: 148 [2021-11-07 07:44:33,375 INFO L226 Difference]: Without dead ends: 146 [2021-11-07 07:44:33,375 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-11-07 07:44:33,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-07 07:44:33,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-11-07 07:44:33,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 96 states have (on average 1.1145833333333333) internal successors, (107), 104 states have internal predecessors, (107), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 07:44:33,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 148 transitions. [2021-11-07 07:44:33,381 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 148 transitions. Word has length 96 [2021-11-07 07:44:33,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:44:33,381 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 148 transitions. [2021-11-07 07:44:33,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (15), 1 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-07 07:44:33,381 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 148 transitions. [2021-11-07 07:44:33,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-07 07:44:33,385 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:44:33,385 INFO L513 BasicCegarLoop]: trace histogram [16, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:44:33,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-07 07:44:33,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:44:33,604 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_kobject_cleanupErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:44:33,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:44:33,604 INFO L85 PathProgramCache]: Analyzing trace with hash 693754465, now seen corresponding path program 1 times [2021-11-07 07:44:33,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:44:33,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607771641] [2021-11-07 07:44:33,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:44:33,605 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:44:33,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:44:33,610 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:44:33,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-07 07:44:34,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:44:34,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-07 07:44:34,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:44:34,495 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 [2021-11-07 07:44:35,279 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:35,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:44:35,858 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:35,858 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:44:35,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607771641] [2021-11-07 07:44:35,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [607771641] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:44:35,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:44:35,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20, 19] imperfect sequences [] total 20 [2021-11-07 07:44:35,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813802990] [2021-11-07 07:44:35,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-07 07:44:35,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:44:35,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-07 07:44:35,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:44:35,861 INFO L87 Difference]: Start difference. First operand 146 states and 148 transitions. Second operand has 21 states, 16 states have (on average 6.375) internal successors, (102), 13 states have internal predecessors, (102), 9 states have call successors, (31), 8 states have call predecessors, (31), 4 states have return successors, (23), 7 states have call predecessors, (23), 5 states have call successors, (23) [2021-11-07 07:44:37,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:44:37,113 INFO L93 Difference]: Finished difference Result 156 states and 157 transitions. [2021-11-07 07:44:37,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-07 07:44:37,114 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 6.375) internal successors, (102), 13 states have internal predecessors, (102), 9 states have call successors, (31), 8 states have call predecessors, (31), 4 states have return successors, (23), 7 states have call predecessors, (23), 5 states have call successors, (23) Word has length 111 [2021-11-07 07:44:37,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:44:37,115 INFO L225 Difference]: With dead ends: 156 [2021-11-07 07:44:37,115 INFO L226 Difference]: Without dead ends: 156 [2021-11-07 07:44:37,115 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 180 SyntacticMatches, 22 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2021-11-07 07:44:37,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-11-07 07:44:37,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 144. [2021-11-07 07:44:37,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 96 states have (on average 1.09375) internal successors, (105), 102 states have internal predecessors, (105), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 07:44:37,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 146 transitions. [2021-11-07 07:44:37,128 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 146 transitions. Word has length 111 [2021-11-07 07:44:37,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:44:37,128 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 146 transitions. [2021-11-07 07:44:37,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 6.375) internal successors, (102), 13 states have internal predecessors, (102), 9 states have call successors, (31), 8 states have call predecessors, (31), 4 states have return successors, (23), 7 states have call predecessors, (23), 5 states have call successors, (23) [2021-11-07 07:44:37,129 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 146 transitions. [2021-11-07 07:44:37,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-07 07:44:37,130 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:44:37,130 INFO L513 BasicCegarLoop]: trace histogram [16, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:44:37,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-07 07:44:37,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:44:37,346 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_kobject_cleanupErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:44:37,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:44:37,347 INFO L85 PathProgramCache]: Analyzing trace with hash 693754466, now seen corresponding path program 1 times [2021-11-07 07:44:37,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:44:37,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083485936] [2021-11-07 07:44:37,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:44:37,348 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:44:37,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:44:37,349 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:44:37,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-07 07:44:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:44:38,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-07 07:44:38,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:44:38,424 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 [2021-11-07 07:44:39,423 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:39,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:44:42,160 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:42,160 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:44:42,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083485936] [2021-11-07 07:44:42,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2083485936] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:44:42,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:44:42,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 20] imperfect sequences [] total 40 [2021-11-07 07:44:42,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905792881] [2021-11-07 07:44:42,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-07 07:44:42,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:44:42,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-07 07:44:42,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1525, Unknown=0, NotChecked=0, Total=1640 [2021-11-07 07:44:42,162 INFO L87 Difference]: Start difference. First operand 144 states and 146 transitions. Second operand has 41 states, 32 states have (on average 3.75) internal successors, (120), 25 states have internal predecessors, (120), 16 states have call successors, (37), 14 states have call predecessors, (37), 6 states have return successors, (25), 12 states have call predecessors, (25), 8 states have call successors, (25) [2021-11-07 07:44:46,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:44:46,580 INFO L93 Difference]: Finished difference Result 142 states and 144 transitions. [2021-11-07 07:44:46,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-07 07:44:46,581 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 32 states have (on average 3.75) internal successors, (120), 25 states have internal predecessors, (120), 16 states have call successors, (37), 14 states have call predecessors, (37), 6 states have return successors, (25), 12 states have call predecessors, (25), 8 states have call successors, (25) Word has length 111 [2021-11-07 07:44:46,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:44:46,582 INFO L225 Difference]: With dead ends: 142 [2021-11-07 07:44:46,582 INFO L226 Difference]: Without dead ends: 142 [2021-11-07 07:44:46,583 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 175 SyntacticMatches, 7 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=170, Invalid=2182, Unknown=0, NotChecked=0, Total=2352 [2021-11-07 07:44:46,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-11-07 07:44:46,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2021-11-07 07:44:46,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 96 states have (on average 1.0729166666666667) internal successors, (103), 100 states have internal predecessors, (103), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 07:44:46,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 144 transitions. [2021-11-07 07:44:46,587 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 144 transitions. Word has length 111 [2021-11-07 07:44:46,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:44:46,587 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 144 transitions. [2021-11-07 07:44:46,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 32 states have (on average 3.75) internal successors, (120), 25 states have internal predecessors, (120), 16 states have call successors, (37), 14 states have call predecessors, (37), 6 states have return successors, (25), 12 states have call predecessors, (25), 8 states have call successors, (25) [2021-11-07 07:44:46,588 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 144 transitions. [2021-11-07 07:44:46,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-07 07:44:46,589 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:44:46,589 INFO L513 BasicCegarLoop]: trace histogram [16, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:44:46,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (26)] Ended with exit code 0 [2021-11-07 07:44:46,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:44:46,807 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:44:46,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:44:46,807 INFO L85 PathProgramCache]: Analyzing trace with hash 256905644, now seen corresponding path program 1 times [2021-11-07 07:44:46,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:44:46,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2009586114] [2021-11-07 07:44:46,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:44:46,808 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:44:46,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:44:46,808 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:44:46,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-07 07:44:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:44:47,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-07 07:44:47,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:44:49,359 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:49,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:44:50,371 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:44:50,371 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:44:50,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2009586114] [2021-11-07 07:44:50,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2009586114] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:44:50,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:44:50,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 19] imperfect sequences [] total 39 [2021-11-07 07:44:50,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746671741] [2021-11-07 07:44:50,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-07 07:44:50,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:44:50,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-07 07:44:50,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1410, Unknown=0, NotChecked=0, Total=1560 [2021-11-07 07:44:50,374 INFO L87 Difference]: Start difference. First operand 142 states and 144 transitions. Second operand has 40 states, 31 states have (on average 4.193548387096774) internal successors, (130), 24 states have internal predecessors, (130), 17 states have call successors, (41), 15 states have call predecessors, (41), 7 states have return successors, (26), 13 states have call predecessors, (26), 9 states have call successors, (26) [2021-11-07 07:44:52,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:44:52,016 INFO L93 Difference]: Finished difference Result 141 states and 143 transitions. [2021-11-07 07:44:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-07 07:44:52,017 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 31 states have (on average 4.193548387096774) internal successors, (130), 24 states have internal predecessors, (130), 17 states have call successors, (41), 15 states have call predecessors, (41), 7 states have return successors, (26), 13 states have call predecessors, (26), 9 states have call successors, (26) Word has length 114 [2021-11-07 07:44:52,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:44:52,018 INFO L225 Difference]: With dead ends: 141 [2021-11-07 07:44:52,018 INFO L226 Difference]: Without dead ends: 141 [2021-11-07 07:44:52,019 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 182 SyntacticMatches, 7 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=206, Invalid=1956, Unknown=0, NotChecked=0, Total=2162 [2021-11-07 07:44:52,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-11-07 07:44:52,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2021-11-07 07:44:52,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 96 states have (on average 1.0625) internal successors, (102), 99 states have internal predecessors, (102), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-07 07:44:52,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 143 transitions. [2021-11-07 07:44:52,024 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 143 transitions. Word has length 114 [2021-11-07 07:44:52,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:44:52,024 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 143 transitions. [2021-11-07 07:44:52,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 31 states have (on average 4.193548387096774) internal successors, (130), 24 states have internal predecessors, (130), 17 states have call successors, (41), 15 states have call predecessors, (41), 7 states have return successors, (26), 13 states have call predecessors, (26), 9 states have call successors, (26) [2021-11-07 07:44:52,025 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 143 transitions. [2021-11-07 07:44:52,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-07 07:44:52,026 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:44:52,026 INFO L513 BasicCegarLoop]: trace histogram [16, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:44:52,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2021-11-07 07:44:52,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:44:52,248 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 67 more)] === [2021-11-07 07:44:52,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:44:52,248 INFO L85 PathProgramCache]: Analyzing trace with hash -155348315, now seen corresponding path program 1 times [2021-11-07 07:44:52,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:44:52,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40044555] [2021-11-07 07:44:52,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:44:52,249 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:44:52,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:44:52,249 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:44:52,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-07 07:44:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:44:53,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 92 conjunts are in the unsatisfiable core [2021-11-07 07:44:53,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:44:53,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:44:53,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:44:53,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:44:53,570 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 07:44:53,571 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 07:44:53,618 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-07 07:44:53,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 36 [2021-11-07 07:44:55,895 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_1 (_ BitVec 8))) (= (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_DerPreprocessor_1) .cse0 (select (select |c_#memory_int| |c_LDV_INIT_LIST_HEAD_#in~list.base|) .cse0)))) |c_#memory_int|)) is different from true [2021-11-07 07:44:56,041 INFO L354 Elim1Store]: treesize reduction 360, result has 11.3 percent of original size [2021-11-07 07:44:56,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 62 treesize of output 59 [2021-11-07 07:44:58,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:44:58,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:44:58,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:44:58,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:44:58,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:44:58,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:44:58,313 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 07:44:58,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:44:58,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:44:58,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:44:58,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:44:58,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:44:58,319 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 07:44:58,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:44:58,320 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 07:44:58,321 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 07:44:58,331 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 07:44:58,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 190 treesize of output 162 [2021-11-07 07:45:00,096 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 07:45:00,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 64 [2021-11-07 07:45:00,213 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:45:00,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:45:05,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1212 treesize of output 1102 [2021-11-07 07:45:05,180 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-11-07 07:45:05,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 260773 treesize of output 129701 [2021-11-07 07:45:11,595 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_f_22_get_#in~kobj.base_BEFORE_CALL_4| (_ BitVec 32)) (|v_f_22_get_#in~kobj.offset_BEFORE_CALL_2| (_ BitVec 32))) (let ((.cse1 (bvadd (_ bv15 32) |v_f_22_get_#in~kobj.offset_BEFORE_CALL_2|)) (.cse2 (bvadd (_ bv14 32) |v_f_22_get_#in~kobj.offset_BEFORE_CALL_2|)) (.cse3 (bvadd (_ bv13 32) |v_f_22_get_#in~kobj.offset_BEFORE_CALL_2|)) (.cse4 (bvadd |v_f_22_get_#in~kobj.offset_BEFORE_CALL_2| (_ bv12 32)))) (or (not (= (let ((.cse0 (select |c_#memory_int| |v_f_22_get_#in~kobj.base_BEFORE_CALL_4|))) (concat (concat (concat (select .cse0 .cse1) (select .cse0 .cse2)) (select .cse0 .cse3)) (select .cse0 .cse4))) (_ bv1 32))) (= (let ((.cse5 (select (store |c_old(#memory_int)| |c_ldv_kobject_get_#in~kobj.base| (let ((.cse11 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv15 32))) (.cse10 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv14 32))) (.cse9 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv13 32))) (.cse6 (select |c_old(#memory_int)| |c_ldv_kobject_get_#in~kobj.base|)) (.cse7 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv12 32)))) (let ((.cse8 (bvadd (concat (concat (concat (select .cse6 .cse11) (select .cse6 .cse10)) (select .cse6 .cse9)) (select .cse6 .cse7)) (_ bv1 32)))) (store (store (store (store .cse6 .cse7 ((_ extract 7 0) .cse8)) .cse9 ((_ extract 15 8) .cse8)) .cse10 ((_ extract 23 16) .cse8)) .cse11 ((_ extract 31 24) .cse8))))) |v_f_22_get_#in~kobj.base_BEFORE_CALL_4|))) (concat (concat (concat (select .cse5 .cse1) (select .cse5 .cse2)) (select .cse5 .cse3)) (select .cse5 .cse4))) (_ bv1 32))))) is different from false [2021-11-07 07:45:13,967 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_f_22_get_#in~kobj.base_BEFORE_CALL_4| (_ BitVec 32)) (|v_f_22_get_#in~kobj.offset_BEFORE_CALL_2| (_ BitVec 32))) (let ((.cse1 (bvadd (_ bv15 32) |v_f_22_get_#in~kobj.offset_BEFORE_CALL_2|)) (.cse2 (bvadd (_ bv14 32) |v_f_22_get_#in~kobj.offset_BEFORE_CALL_2|)) (.cse3 (bvadd (_ bv13 32) |v_f_22_get_#in~kobj.offset_BEFORE_CALL_2|)) (.cse4 (bvadd |v_f_22_get_#in~kobj.offset_BEFORE_CALL_2| (_ bv12 32)))) (or (not (= (let ((.cse0 (select (store |c_#memory_int| c_ldv_kobject_get_~kobj.base (let ((.cse10 (bvadd c_ldv_kobject_get_~kobj.offset (_ bv15 32))) (.cse9 (bvadd c_ldv_kobject_get_~kobj.offset (_ bv14 32))) (.cse8 (bvadd c_ldv_kobject_get_~kobj.offset (_ bv13 32))) (.cse5 (select |c_#memory_int| c_ldv_kobject_get_~kobj.base)) (.cse6 (bvadd c_ldv_kobject_get_~kobj.offset (_ bv12 32)))) (let ((.cse7 (bvadd (concat (concat (concat (select .cse5 .cse10) (select .cse5 .cse9)) (select .cse5 .cse8)) (select .cse5 .cse6)) (_ bv1 32)))) (store (store (store (store .cse5 .cse6 ((_ extract 7 0) .cse7)) .cse8 ((_ extract 15 8) .cse7)) .cse9 ((_ extract 23 16) .cse7)) .cse10 ((_ extract 31 24) .cse7))))) |v_f_22_get_#in~kobj.base_BEFORE_CALL_4|))) (concat (concat (concat (select .cse0 .cse1) (select .cse0 .cse2)) (select .cse0 .cse3)) (select .cse0 .cse4))) (_ bv1 32))) (= (let ((.cse11 (select (store |c_old(#memory_int)| |c_ldv_kobject_get_#in~kobj.base| (let ((.cse17 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv15 32))) (.cse16 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv14 32))) (.cse15 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv13 32))) (.cse12 (select |c_old(#memory_int)| |c_ldv_kobject_get_#in~kobj.base|)) (.cse13 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv12 32)))) (let ((.cse14 (bvadd (concat (concat (concat (select .cse12 .cse17) (select .cse12 .cse16)) (select .cse12 .cse15)) (select .cse12 .cse13)) (_ bv1 32)))) (store (store (store (store .cse12 .cse13 ((_ extract 7 0) .cse14)) .cse15 ((_ extract 15 8) .cse14)) .cse16 ((_ extract 23 16) .cse14)) .cse17 ((_ extract 31 24) .cse14))))) |v_f_22_get_#in~kobj.base_BEFORE_CALL_4|))) (concat (concat (concat (select .cse11 .cse1) (select .cse11 .cse2)) (select .cse11 .cse3)) (select .cse11 .cse4))) (_ bv1 32))))) is different from false [2021-11-07 07:45:13,975 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:45:13,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40044555] [2021-11-07 07:45:13,978 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_f_22_get_#in~kobj.base_BEFORE_CALL_4|, |v_f_22_get_#in~kobj.offset_BEFORE_CALL_2|] [2021-11-07 07:45:13,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1586281891] [2021-11-07 07:45:13,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:45:13,979 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 07:45:13,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/cvc4 [2021-11-07 07:45:13,981 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 07:45:14,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2021-11-07 07:45:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:45:15,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 136 conjunts are in the unsatisfiable core [2021-11-07 07:45:15,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:45:16,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2021-11-07 07:45:16,302 INFO L354 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2021-11-07 07:45:16,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 24 [2021-11-07 07:45:16,534 INFO L354 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2021-11-07 07:45:16,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 38 [2021-11-07 07:45:16,801 INFO L354 Elim1Store]: treesize reduction 110, result has 19.1 percent of original size [2021-11-07 07:45:16,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 52 [2021-11-07 07:45:17,135 INFO L354 Elim1Store]: treesize reduction 172, result has 16.9 percent of original size [2021-11-07 07:45:17,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 66 [2021-11-07 07:45:17,628 INFO L354 Elim1Store]: treesize reduction 246, result has 15.2 percent of original size [2021-11-07 07:45:17,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 80 [2021-11-07 07:45:18,139 INFO L354 Elim1Store]: treesize reduction 332, result has 13.8 percent of original size [2021-11-07 07:45:18,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 80 treesize of output 94 [2021-11-07 07:45:18,800 INFO L354 Elim1Store]: treesize reduction 444, result has 12.3 percent of original size [2021-11-07 07:45:18,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 92 treesize of output 109 [2021-11-07 07:45:19,590 INFO L354 Elim1Store]: treesize reduction 566, result has 11.3 percent of original size [2021-11-07 07:45:19,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 104 treesize of output 124 [2021-11-07 07:45:20,650 INFO L354 Elim1Store]: treesize reduction 702, result has 10.5 percent of original size [2021-11-07 07:45:20,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 116 treesize of output 139 [2021-11-07 07:45:21,760 INFO L354 Elim1Store]: treesize reduction 796, result has 10.1 percent of original size [2021-11-07 07:45:21,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 124 treesize of output 150 [2021-11-07 07:45:23,136 INFO L354 Elim1Store]: treesize reduction 942, result has 9.4 percent of original size [2021-11-07 07:45:23,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 135 treesize of output 164 [2021-11-07 07:45:24,548 INFO L354 Elim1Store]: treesize reduction 1100, result has 8.9 percent of original size [2021-11-07 07:45:24,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 146 treesize of output 178 [2021-11-07 07:45:26,264 INFO L354 Elim1Store]: treesize reduction 1296, result has 8.2 percent of original size [2021-11-07 07:45:26,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 91 case distinctions, treesize of input 158 treesize of output 193 [2021-11-07 07:45:28,022 INFO L354 Elim1Store]: treesize reduction 1496, result has 7.8 percent of original size [2021-11-07 07:45:28,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 105 case distinctions, treesize of input 170 treesize of output 208 [2021-11-07 07:45:30,062 INFO L354 Elim1Store]: treesize reduction 1646, result has 7.5 percent of original size [2021-11-07 07:45:30,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 120 case distinctions, treesize of input 179 treesize of output 220 [2021-11-07 07:45:38,076 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_internal_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_internal_#in~kobj.base|) (bvadd |c_ldv_kobject_init_internal_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_2) (bvadd (_ bv13 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd (_ bv14 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_4) (bvadd (_ bv15 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) v_DerPreprocessor_5) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_internal_#in~kobj.offset|) .cse0))))) is different from true [2021-11-07 07:45:40,122 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_5 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base| (let ((.cse0 (bvadd (_ bv4 32) |c_ldv_kobject_init_#in~kobj.offset|))) (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_init_#in~kobj.base|) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv12 32)) v_DerPreprocessor_2) (bvadd (_ bv13 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_3) (bvadd (_ bv14 32) |c_ldv_kobject_init_#in~kobj.offset|) v_DerPreprocessor_4) (bvadd |c_ldv_kobject_init_#in~kobj.offset| (_ bv15 32)) v_DerPreprocessor_5) .cse0 .cse0) (bvadd (_ bv8 32) |c_ldv_kobject_init_#in~kobj.offset|) .cse0))))) is different from true [2021-11-07 07:45:40,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:40,320 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 07:45:40,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 185 treesize of output 195 [2021-11-07 07:45:48,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:45:48,420 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 07:45:48,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 163 treesize of output 147 [2021-11-07 07:45:54,296 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 07:45:54,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 120 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 121 treesize of output 121 [2021-11-07 07:45:58,783 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 07:45:58,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 66 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 92 treesize of output 136 [2021-11-07 07:46:00,559 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:46:00,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:46:19,004 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [v_DerPreprocessor_7, v_DerPreprocessor_6, v_DerPreprocessor_9, v_DerPreprocessor_8] [2021-11-07 07:46:19,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77750073] [2021-11-07 07:46:19,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:46:19,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:46:19,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:46:19,005 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:46:19,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-11-07 07:46:20,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:46:20,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 92 conjunts are in the unsatisfiable core [2021-11-07 07:46:20,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:46:20,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:46:20,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:46:20,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:46:20,709 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 07:46:20,710 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 07:46:20,772 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-07 07:46:20,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 36 [2021-11-07 07:46:22,934 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_18 (_ BitVec 8))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_DerPreprocessor_18) .cse0 (select (select |c_#memory_int| |c_LDV_INIT_LIST_HEAD_#in~list.base|) .cse0)))))) is different from true [2021-11-07 07:46:23,076 INFO L354 Elim1Store]: treesize reduction 360, result has 11.3 percent of original size [2021-11-07 07:46:23,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 62 treesize of output 59 [2021-11-07 07:46:23,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:46:23,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:46:23,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:46:23,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:46:23,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:46:23,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:46:23,673 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 07:46:23,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:46:23,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:46:23,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:46:23,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:46:23,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:46:23,678 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 07:46:23,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:46:23,679 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 07:46:23,679 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 07:46:23,690 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 07:46:23,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 190 treesize of output 162 [2021-11-07 07:46:24,098 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 07:46:24,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 64 [2021-11-07 07:46:24,135 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-07 07:46:24,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:46:25,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1212 treesize of output 1102 [2021-11-07 07:46:25,726 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-11-07 07:46:25,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33189 treesize of output 16805 [2021-11-07 07:46:28,326 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_f_22_get_#in~kobj.base_BEFORE_CALL_7| (_ BitVec 32)) (|v_f_22_get_#in~kobj.offset_BEFORE_CALL_5| (_ BitVec 32))) (let ((.cse1 (bvadd (_ bv15 32) |v_f_22_get_#in~kobj.offset_BEFORE_CALL_5|)) (.cse2 (bvadd (_ bv14 32) |v_f_22_get_#in~kobj.offset_BEFORE_CALL_5|)) (.cse3 (bvadd (_ bv13 32) |v_f_22_get_#in~kobj.offset_BEFORE_CALL_5|)) (.cse4 (bvadd |v_f_22_get_#in~kobj.offset_BEFORE_CALL_5| (_ bv12 32)))) (or (not (= (let ((.cse0 (select |c_#memory_int| |v_f_22_get_#in~kobj.base_BEFORE_CALL_7|))) (concat (concat (concat (select .cse0 .cse1) (select .cse0 .cse2)) (select .cse0 .cse3)) (select .cse0 .cse4))) (_ bv1 32))) (= (let ((.cse5 (select (store |c_old(#memory_int)| |c_ldv_kobject_get_#in~kobj.base| (let ((.cse11 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv15 32))) (.cse10 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv14 32))) (.cse9 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv13 32))) (.cse6 (select |c_old(#memory_int)| |c_ldv_kobject_get_#in~kobj.base|)) (.cse7 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv12 32)))) (let ((.cse8 (bvadd (concat (concat (concat (select .cse6 .cse11) (select .cse6 .cse10)) (select .cse6 .cse9)) (select .cse6 .cse7)) (_ bv1 32)))) (store (store (store (store .cse6 .cse7 ((_ extract 7 0) .cse8)) .cse9 ((_ extract 15 8) .cse8)) .cse10 ((_ extract 23 16) .cse8)) .cse11 ((_ extract 31 24) .cse8))))) |v_f_22_get_#in~kobj.base_BEFORE_CALL_7|))) (concat (concat (concat (select .cse5 .cse1) (select .cse5 .cse2)) (select .cse5 .cse3)) (select .cse5 .cse4))) (_ bv1 32))))) is different from false [2021-11-07 07:46:30,761 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_f_22_get_#in~kobj.base_BEFORE_CALL_7| (_ BitVec 32)) (|v_f_22_get_#in~kobj.offset_BEFORE_CALL_5| (_ BitVec 32))) (let ((.cse1 (bvadd (_ bv15 32) |v_f_22_get_#in~kobj.offset_BEFORE_CALL_5|)) (.cse2 (bvadd (_ bv14 32) |v_f_22_get_#in~kobj.offset_BEFORE_CALL_5|)) (.cse3 (bvadd (_ bv13 32) |v_f_22_get_#in~kobj.offset_BEFORE_CALL_5|)) (.cse4 (bvadd |v_f_22_get_#in~kobj.offset_BEFORE_CALL_5| (_ bv12 32)))) (or (not (= (let ((.cse0 (select (store |c_#memory_int| c_ldv_kobject_get_~kobj.base (let ((.cse10 (bvadd c_ldv_kobject_get_~kobj.offset (_ bv15 32))) (.cse9 (bvadd c_ldv_kobject_get_~kobj.offset (_ bv14 32))) (.cse8 (bvadd c_ldv_kobject_get_~kobj.offset (_ bv13 32))) (.cse5 (select |c_#memory_int| c_ldv_kobject_get_~kobj.base)) (.cse6 (bvadd c_ldv_kobject_get_~kobj.offset (_ bv12 32)))) (let ((.cse7 (bvadd (concat (concat (concat (select .cse5 .cse10) (select .cse5 .cse9)) (select .cse5 .cse8)) (select .cse5 .cse6)) (_ bv1 32)))) (store (store (store (store .cse5 .cse6 ((_ extract 7 0) .cse7)) .cse8 ((_ extract 15 8) .cse7)) .cse9 ((_ extract 23 16) .cse7)) .cse10 ((_ extract 31 24) .cse7))))) |v_f_22_get_#in~kobj.base_BEFORE_CALL_7|))) (concat (concat (concat (select .cse0 .cse1) (select .cse0 .cse2)) (select .cse0 .cse3)) (select .cse0 .cse4))) (_ bv1 32))) (= (let ((.cse11 (select (store |c_old(#memory_int)| |c_ldv_kobject_get_#in~kobj.base| (let ((.cse17 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv15 32))) (.cse16 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv14 32))) (.cse15 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv13 32))) (.cse12 (select |c_old(#memory_int)| |c_ldv_kobject_get_#in~kobj.base|)) (.cse13 (bvadd |c_ldv_kobject_get_#in~kobj.offset| (_ bv12 32)))) (let ((.cse14 (bvadd (concat (concat (concat (select .cse12 .cse17) (select .cse12 .cse16)) (select .cse12 .cse15)) (select .cse12 .cse13)) (_ bv1 32)))) (store (store (store (store .cse12 .cse13 ((_ extract 7 0) .cse14)) .cse15 ((_ extract 15 8) .cse14)) .cse16 ((_ extract 23 16) .cse14)) .cse17 ((_ extract 31 24) .cse14))))) |v_f_22_get_#in~kobj.base_BEFORE_CALL_7|))) (concat (concat (concat (select .cse11 .cse1) (select .cse11 .cse2)) (select .cse11 .cse3)) (select .cse11 .cse4))) (_ bv1 32))))) is different from false [2021-11-07 07:46:30,771 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_f_22_get_#in~kobj.base_BEFORE_CALL_7|, |v_f_22_get_#in~kobj.offset_BEFORE_CALL_5|] [2021-11-07 07:46:30,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:46:30,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-07 07:46:30,772 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-11-07 07:46:30,772 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-07 07:46:30,780 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:46:30,782 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-11-07 07:46:30,782 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-11-07 07:46:30,783 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-11-07 07:46:30,783 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-11-07 07:46:30,783 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-11-07 07:46:30,783 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-11-07 07:46:30,783 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-11-07 07:46:30,783 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-11-07 07:46:30,784 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-11-07 07:46:30,784 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-11-07 07:46:30,784 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-11-07 07:46:30,784 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-11-07 07:46:30,784 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-11-07 07:46:30,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-11-07 07:46:30,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-11-07 07:46:30,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-11-07 07:46:30,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-11-07 07:46:30,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-11-07 07:46:30,785 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-11-07 07:46:30,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-11-07 07:46:30,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-11-07 07:46:30,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-11-07 07:46:30,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-11-07 07:46:30,786 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-11-07 07:46:30,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-11-07 07:46:30,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-11-07 07:46:30,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-11-07 07:46:30,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-11-07 07:46:30,787 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-11-07 07:46:30,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-11-07 07:46:30,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-11-07 07:46:30,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-11-07 07:46:30,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-11-07 07:46:30,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-11-07 07:46:30,788 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-11-07 07:46:30,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-11-07 07:46:30,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-11-07 07:46:30,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-11-07 07:46:30,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-11-07 07:46:30,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-11-07 07:46:30,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-11-07 07:46:30,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-11-07 07:46:30,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:46:30,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:46:30,790 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:46:30,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:46:30,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:46:30,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:46:30,791 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-11-07 07:46:30,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-11-07 07:46:30,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-11-07 07:46:30,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-11-07 07:46:30,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-11-07 07:46:30,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-11-07 07:46:30,792 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-11-07 07:46:30,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-11-07 07:46:30,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-11-07 07:46:30,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:46:30,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:46:30,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:46:30,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:46:30,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 07:46:30,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-11-07 07:46:30,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-11-07 07:46:30,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-11-07 07:46:30,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-11-07 07:46:30,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-11-07 07:46:30,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-11-07 07:46:30,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-11-07 07:46:30,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-11-07 07:46:30,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-11-07 07:46:31,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-07 07:46:31,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2021-11-07 07:46:31,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/cvc4 --incremental --print-success --lang smt [2021-11-07 07:46:31,413 INFO L731 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:46:31,416 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 07:46:31,420 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-11-07 07:46:31,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:46:31 BoogieIcfgContainer [2021-11-07 07:46:31,432 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 07:46:31,433 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 07:46:31,433 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 07:46:31,433 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 07:46:31,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:43:40" (3/4) ... [2021-11-07 07:46:31,441 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 07:46:31,442 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 07:46:31,443 INFO L168 Benchmark]: Toolchain (without parser) took 173142.26 ms. Allocated memory was 60.8 MB in the beginning and 262.1 MB in the end (delta: 201.3 MB). Free memory was 37.1 MB in the beginning and 184.3 MB in the end (delta: -147.1 MB). Peak memory consumption was 53.7 MB. Max. memory is 16.1 GB. [2021-11-07 07:46:31,443 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 60.8 MB. Free memory was 40.9 MB in the beginning and 40.9 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:46:31,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 874.89 ms. Allocated memory is still 60.8 MB. Free memory was 37.0 MB in the beginning and 40.1 MB in the end (delta: -3.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2021-11-07 07:46:31,444 INFO L168 Benchmark]: Boogie Preprocessor took 92.93 ms. Allocated memory is still 60.8 MB. Free memory was 40.1 MB in the beginning and 35.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 07:46:31,444 INFO L168 Benchmark]: RCFGBuilder took 1456.84 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 35.4 MB in the beginning and 39.4 MB in the end (delta: -4.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2021-11-07 07:46:31,445 INFO L168 Benchmark]: TraceAbstraction took 170685.82 ms. Allocated memory was 75.5 MB in the beginning and 262.1 MB in the end (delta: 186.6 MB). Free memory was 39.0 MB in the beginning and 184.3 MB in the end (delta: -145.3 MB). Peak memory consumption was 42.4 MB. Max. memory is 16.1 GB. [2021-11-07 07:46:31,445 INFO L168 Benchmark]: Witness Printer took 9.26 ms. Allocated memory is still 262.1 MB. Free memory is still 184.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:46:31,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 60.8 MB. Free memory was 40.9 MB in the beginning and 40.9 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 874.89 ms. Allocated memory is still 60.8 MB. Free memory was 37.0 MB in the beginning and 40.1 MB in the end (delta: -3.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.93 ms. Allocated memory is still 60.8 MB. Free memory was 40.1 MB in the beginning and 35.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1456.84 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 35.4 MB in the beginning and 39.4 MB in the end (delta: -4.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 170685.82 ms. Allocated memory was 75.5 MB in the beginning and 262.1 MB in the end (delta: 186.6 MB). Free memory was 39.0 MB in the beginning and 184.3 MB in the end (delta: -145.3 MB). Peak memory consumption was 42.4 MB. Max. memory is 16.1 GB. * Witness Printer took 9.26 ms. Allocated memory is still 262.1 MB. Free memory is still 184.3 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 free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; 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: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L770] CALL entry_point() [L764] struct ldv_kobject *kobj; [L765] CALL, EXPR ldv_kobject_create() [L740] struct ldv_kobject *kobj; [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) [L744] FCALL memset(kobj, 0, sizeof(*kobj)) [L745] CALL ldv_kobject_init(kobj) [L730] COND FALSE !(!kobj) [L733] CALL ldv_kobject_init_internal(kobj) [L723] COND FALSE !(!kobj) [L725] CALL ldv_kref_init(&kobj->kref) [L682] ((&kref->refcount)->counter) = (1) [L725] RET ldv_kref_init(&kobj->kref) [L726] CALL LDV_INIT_LIST_HEAD(&kobj->entry) [L540] list->next = list [L541] list->prev = list [L726] RET LDV_INIT_LIST_HEAD(&kobj->entry) [L733] RET ldv_kobject_init_internal(kobj) [L745] RET ldv_kobject_init(kobj) [L746] return kobj; [L765] RET, EXPR ldv_kobject_create() [L765] kobj = ldv_kobject_create() [L766] CALL f_22_get(kobj) [L758] CALL ldv_kobject_get(kobj) [L717] COND TRUE \read(*kobj) [L718] CALL ldv_kref_get(&kobj->kref) [L686] CALL ldv_atomic_add_return(1, (&kref->refcount)) [L657] int temp; [L658] EXPR v->counter [L658] temp = v->counter [L659] temp += i [L660] v->counter = temp [L661] return temp; [L686] RET ldv_atomic_add_return(1, (&kref->refcount)) [L718] RET ldv_kref_get(&kobj->kref) [L719] return kobj; [L758] RET ldv_kobject_get(kobj) [L766] RET f_22_get(kobj) [L767] CALL ldv_kobject_put(kobj) [L711] COND TRUE \read(*kobj) [L712] CALL ldv_kref_put(&kobj->kref, ldv_kobject_release) [L690] CALL ldv_kref_sub(kref, 1, release) [L674] CALL, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L665] int temp; [L666] EXPR v->counter [L666] temp = v->counter [L667] temp -= i [L668] v->counter = temp [L669] return temp; [L674] RET, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L674] COND TRUE (ldv_atomic_sub_return(((int) count), (&kref->refcount)) == 0) [L675] CALL release(kref) [L706] const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); [L706] struct ldv_kobject *kobj = ({ const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) );}); [L707] CALL ldv_kobject_cleanup(kobj) [L699] EXPR kobj->name [L699] char *name = kobj->name; [L700] free(kobj) [L700] free(kobj) [L700] free(kobj) [L701] COND TRUE \read(*name) [L702] free(name) - 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: 769]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed 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: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 341 locations, 71 error locations. Started 1 CEGAR loops. OverallTime: 170.6s, OverallIterations: 27, TraceHistogramMax: 16, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 26.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3318 SDtfs, 1569 SDslu, 25532 SDs, 0 SdLazy, 12226 SolverSat, 376 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3084 GetRequests, 2524 SyntacticMatches, 102 SemanticMatches, 458 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2319 ImplicationChecksByTransitivity, 15.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=0, InterpolantAutomatonStates: 321, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 26 MinimizatonAttempts, 97 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 47.9s InterpolantComputationTime, 1631 NumberOfCodeBlocks, 1595 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3092 ConstructedInterpolants, 505 QuantifiedInterpolants, 16175 SizeOfPredicates, 155 NumberOfNonLiveVariables, 6642 ConjunctsInSsa, 489 ConjunctsInUnsatCore, 53 InterpolantComputations, 47 PerfectInterpolantSequences, 3924/4182 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 [2021-11-07 07:46:31,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f6153db-205c-498b-9783-6e928586ea8c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN