./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bd16a09b8249550fe27ec1d3745982255d6ee9946403f6860cbcc4680185e804 ................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bd16a09b8249550fe27ec1d3745982255d6ee9946403f6860cbcc4680185e804 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:53:24,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:53:24,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:53:24,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:53:24,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:53:24,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:53:24,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:53:24,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:53:24,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:53:24,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:53:24,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:53:24,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:53:24,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:53:24,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:53:24,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:53:24,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:53:24,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:53:24,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:53:24,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:53:24,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:53:24,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:53:24,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:53:24,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:53:24,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:53:24,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:53:24,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:53:24,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:53:24,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:53:24,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:53:24,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:53:24,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:53:24,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:53:24,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:53:24,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:53:24,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:53:24,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:53:24,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:53:24,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:53:24,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:53:24,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:53:24,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:53:24,758 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-10-28 09:53:24,800 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:53:24,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:53:24,802 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:53:24,802 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:53:24,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:53:24,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:53:24,810 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:53:24,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:53:24,810 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:53:24,811 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:53:24,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:53:24,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:53:24,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:53:24,812 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:53:24,812 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:53:24,812 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:53:24,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:53:24,813 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:53:24,813 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:53:24,813 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:53:24,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:53:24,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:53:24,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:53:24,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:53:24,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:53:24,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:53:24,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:53:24,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:53:24,816 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:53:24,816 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_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd16a09b8249550fe27ec1d3745982255d6ee9946403f6860cbcc4680185e804 [2021-10-28 09:53:25,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:53:25,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:53:25,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:53:25,140 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:53:25,141 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:53:25,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i [2021-10-28 09:53:25,214 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/data/1817f5e10/5e9fec58e287475c8e9cf7dc42d157dc/FLAG140ceab3c [2021-10-28 09:53:25,754 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:53:25,754 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i [2021-10-28 09:53:25,775 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/data/1817f5e10/5e9fec58e287475c8e9cf7dc42d157dc/FLAG140ceab3c [2021-10-28 09:53:26,051 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/data/1817f5e10/5e9fec58e287475c8e9cf7dc42d157dc [2021-10-28 09:53:26,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:53:26,061 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:53:26,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:53:26,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:53:26,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:53:26,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:53:26" (1/1) ... [2021-10-28 09:53:26,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64953534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:53:26, skipping insertion in model container [2021-10-28 09:53:26,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:53:26" (1/1) ... [2021-10-28 09:53:26,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:53:26,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:53:26,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:53:26,568 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-28 09:53:26,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7d7613df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:53:26, skipping insertion in model container [2021-10-28 09:53:26,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:53:26,569 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-10-28 09:53:26,572 INFO L168 Benchmark]: Toolchain (without parser) took 509.02 ms. Allocated memory is still 121.6 MB. Free memory was 93.2 MB in the beginning and 91.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:53:26,573 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 121.6 MB. Free memory is still 76.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:53:26,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.37 ms. Allocated memory is still 121.6 MB. Free memory was 92.9 MB in the beginning and 91.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:53:26,575 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 121.6 MB. Free memory is still 76.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 505.37 ms. Allocated memory is still 121.6 MB. Free memory was 92.9 MB in the beginning and 91.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:53:28,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:53:28,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:53:28,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:53:28,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:53:28,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:53:28,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:53:28,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:53:28,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:53:28,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:53:28,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:53:28,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:53:28,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:53:28,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:53:28,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:53:28,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:53:28,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:53:28,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:53:28,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:53:28,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:53:28,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:53:28,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:53:28,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:53:28,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:53:28,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:53:28,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:53:28,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:53:28,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:53:28,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:53:28,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:53:28,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:53:28,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:53:28,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:53:28,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:53:28,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:53:28,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:53:28,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:53:28,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:53:28,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:53:28,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:53:28,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:53:28,896 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-10-28 09:53:28,943 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:53:28,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:53:28,944 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:53:28,944 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:53:28,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:53:28,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:53:28,946 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:53:28,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:53:28,947 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:53:28,947 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:53:28,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:53:28,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:53:28,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:53:28,949 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-28 09:53:28,949 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-28 09:53:28,949 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-28 09:53:28,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:53:28,950 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-28 09:53:28,950 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:53:28,950 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:53:28,950 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:53:28,951 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:53:28,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:53:28,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:53:28,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:53:28,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:53:28,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:53:28,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:53:28,952 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:53:28,953 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:53:28,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:53:28,953 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:53:28,953 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_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd16a09b8249550fe27ec1d3745982255d6ee9946403f6860cbcc4680185e804 [2021-10-28 09:53:29,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:53:29,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:53:29,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:53:29,391 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:53:29,392 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:53:29,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i [2021-10-28 09:53:29,470 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/data/318f2aa91/bb805d1a71c74bdf92bdd3a810c421b2/FLAG9b0e86624 [2021-10-28 09:53:30,137 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:53:30,137 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i [2021-10-28 09:53:30,166 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/data/318f2aa91/bb805d1a71c74bdf92bdd3a810c421b2/FLAG9b0e86624 [2021-10-28 09:53:30,387 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/data/318f2aa91/bb805d1a71c74bdf92bdd3a810c421b2 [2021-10-28 09:53:30,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:53:30,390 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-28 09:53:30,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:53:30,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:53:30,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:53:30,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:53:30" (1/1) ... [2021-10-28 09:53:30,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4015d2b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:53:30, skipping insertion in model container [2021-10-28 09:53:30,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:53:30" (1/1) ... [2021-10-28 09:53:30,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:53:30,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:53:30,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:53:30,961 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-28 09:53:30,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:53:31,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:53:31,052 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:53:31,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:53:31,189 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:53:31,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:53:31 WrapperNode [2021-10-28 09:53:31,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:53:31,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:53:31,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:53:31,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:53:31,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:53:31" (1/1) ... [2021-10-28 09:53:31,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:53:31" (1/1) ... [2021-10-28 09:53:31,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:53:31" (1/1) ... [2021-10-28 09:53:31,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:53:31" (1/1) ... [2021-10-28 09:53:31,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:53:31" (1/1) ... [2021-10-28 09:53:31,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:53:31" (1/1) ... [2021-10-28 09:53:31,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:53:31" (1/1) ... [2021-10-28 09:53:31,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:53:31,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:53:31,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:53:31,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:53:31,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:53:31" (1/1) ... [2021-10-28 09:53:31,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:53:31,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:53:31,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:53:31,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:53:31,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-28 09:53:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:53:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 09:53:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:53:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-10-28 09:53:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-10-28 09:53:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-10-28 09:53:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-10-28 09:53:31,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-10-28 09:53:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-10-28 09:53:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-10-28 09:53:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-10-28 09:53:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-10-28 09:53:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-10-28 09:53:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-10-28 09:53:31,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-10-28 09:53:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-10-28 09:53:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-10-28 09:53:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-10-28 09:53:31,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-10-28 09:53:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-10-28 09:53:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-10-28 09:53:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-10-28 09:53:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-10-28 09:53:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-10-28 09:53:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-10-28 09:53:31,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-10-28 09:53:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-10-28 09:53:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-10-28 09:53:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-10-28 09:53:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-10-28 09:53:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-10-28 09:53:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-10-28 09:53:31,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-10-28 09:53:31,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-10-28 09:53:31,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-10-28 09:53:31,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-10-28 09:53:31,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-10-28 09:53:31,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-10-28 09:53:31,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-10-28 09:53:31,417 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-28 09:53:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-10-28 09:53:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure f6 [2021-10-28 09:53:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure g6 [2021-10-28 09:53:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure probe2_6 [2021-10-28 09:53:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_6 [2021-10-28 09:53:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-10-28 09:53:31,418 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-28 09:53:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-10-28 09:53:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-10-28 09:53:31,419 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-10-28 09:53:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-28 09:53:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-28 09:53:31,419 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-28 09:53:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-28 09:53:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-28 09:53:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-28 09:53:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-28 09:53:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-28 09:53:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-28 09:53:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-28 09:53:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-28 09:53:31,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-28 09:53:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-28 09:53:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-28 09:53:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-28 09:53:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-28 09:53:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-10-28 09:53:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-10-28 09:53:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-10-28 09:53:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-10-28 09:53:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-10-28 09:53:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-28 09:53:31,421 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-28 09:53:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-28 09:53:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-28 09:53:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-28 09:53:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-28 09:53:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-28 09:53:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-28 09:53:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-28 09:53:31,422 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-28 09:53:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-28 09:53:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-28 09:53:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-28 09:53:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-28 09:53:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-28 09:53:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-28 09:53:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-28 09:53:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-28 09:53:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-28 09:53:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-28 09:53:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-28 09:53:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-28 09:53:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-28 09:53:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-28 09:53:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-28 09:53:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-28 09:53:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-28 09:53:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-28 09:53:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-28 09:53:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-28 09:53:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-28 09:53:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-28 09:53:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-28 09:53:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-28 09:53:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-28 09:53:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-28 09:53:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-28 09:53:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-28 09:53:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-28 09:53:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-28 09:53:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-28 09:53:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-28 09:53:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-28 09:53:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-28 09:53:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-28 09:53:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-28 09:53:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-28 09:53:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-28 09:53:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-28 09:53:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-28 09:53:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-28 09:53:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-28 09:53:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-28 09:53:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-28 09:53:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-28 09:53:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-28 09:53:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-28 09:53:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-28 09:53:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-28 09:53:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-28 09:53:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-28 09:53:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-28 09:53:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-28 09:53:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-28 09:53:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-28 09:53:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-28 09:53:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-28 09:53:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-28 09:53:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-28 09:53:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-28 09:53:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-28 09:53:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-28 09:53:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-28 09:53:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-28 09:53:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-28 09:53:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-28 09:53:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-28 09:53:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-28 09:53:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-28 09:53:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-28 09:53:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-28 09:53:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-28 09:53:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-28 09:53:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-28 09:53:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-28 09:53:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-28 09:53:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-10-28 09:53:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-28 09:53:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-10-28 09:53:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-10-28 09:53:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-10-28 09:53:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-10-28 09:53:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-10-28 09:53:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:53:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-10-28 09:53:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-10-28 09:53:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-10-28 09:53:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 09:53:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-10-28 09:53:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-10-28 09:53:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-10-28 09:53:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-28 09:53:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-10-28 09:53:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-10-28 09:53:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-10-28 09:53:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-10-28 09:53:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-10-28 09:53:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-10-28 09:53:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:53:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-10-28 09:53:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-10-28 09:53:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-10-28 09:53:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-10-28 09:53:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-10-28 09:53:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 09:53:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 09:53:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-10-28 09:53:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-10-28 09:53:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-10-28 09:53:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-10-28 09:53:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-10-28 09:53:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-10-28 09:53:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-10-28 09:53:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-10-28 09:53:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-10-28 09:53:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-10-28 09:53:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-10-28 09:53:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-10-28 09:53:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-10-28 09:53:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-10-28 09:53:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-10-28 09:53:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-28 09:53:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-10-28 09:53:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure f6 [2021-10-28 09:53:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure g6 [2021-10-28 09:53:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure probe2_6 [2021-10-28 09:53:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_6 [2021-10-28 09:53:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-10-28 09:53:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-28 09:53:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-28 09:53:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:53:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 09:53:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:53:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-10-28 09:53:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-10-28 09:53:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-10-28 09:53:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-10-28 09:53:31,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-10-28 09:53:32,047 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:53:32,355 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-28 09:53:32,692 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:53:32,692 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-10-28 09:53:32,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:53:32 BoogieIcfgContainer [2021-10-28 09:53:32,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:53:32,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:53:32,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:53:32,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:53:32,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:53:30" (1/3) ... [2021-10-28 09:53:32,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5989d652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:53:32, skipping insertion in model container [2021-10-28 09:53:32,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:53:31" (2/3) ... [2021-10-28 09:53:32,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5989d652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:53:32, skipping insertion in model container [2021-10-28 09:53:32,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:53:32" (3/3) ... [2021-10-28 09:53:32,702 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test6_1.i [2021-10-28 09:53:32,707 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:53:32,707 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 83 error locations. [2021-10-28 09:53:32,750 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:53:32,755 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 09:53:32,755 INFO L340 AbstractCegarLoop]: Starting to check reachability of 83 error locations. [2021-10-28 09:53:32,771 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 74 states have (on average 1.5405405405405406) internal successors, (114), 105 states have internal predecessors, (114), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-10-28 09:53:32,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 09:53:32,779 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:32,779 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] [2021-10-28 09:53:32,780 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 79 more)] === [2021-10-28 09:53:32,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:32,785 INFO L85 PathProgramCache]: Analyzing trace with hash -42624849, now seen corresponding path program 1 times [2021-10-28 09:53:32,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:53:32,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268632998] [2021-10-28 09:53:32,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:32,798 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:53:32,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:53:32,801 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:53:32,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:53:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:33,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:53:33,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:53:33,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:33,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:53:33,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:33,346 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:53:33,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268632998] [2021-10-28 09:53:33,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268632998] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:33,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:33,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 09:53:33,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717199579] [2021-10-28 09:53:33,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:53:33,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:53:33,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:53:33,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:53:33,379 INFO L87 Difference]: Start difference. First operand has 134 states, 74 states have (on average 1.5405405405405406) internal successors, (114), 105 states have internal predecessors, (114), 15 states have call successors, (15), 14 states have call predecessors, (15), 14 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-10-28 09:53:33,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:33,466 INFO L93 Difference]: Finished difference Result 85 states and 94 transitions. [2021-10-28 09:53:33,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:53:33,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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 20 [2021-10-28 09:53:33,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:33,479 INFO L225 Difference]: With dead ends: 85 [2021-10-28 09:53:33,479 INFO L226 Difference]: Without dead ends: 82 [2021-10-28 09:53:33,481 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:53:33,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-28 09:53:33,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 65. [2021-10-28 09:53:33,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 49 states have internal predecessors, (53), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-10-28 09:53:33,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2021-10-28 09:53:33,522 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 20 [2021-10-28 09:53:33,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:33,523 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2021-10-28 09:53:33,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 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) [2021-10-28 09:53:33,523 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2021-10-28 09:53:33,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 09:53:33,524 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:33,525 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] [2021-10-28 09:53:33,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:53:33,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:53:33,736 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting entry_pointErr1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 79 more)] === [2021-10-28 09:53:33,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:33,742 INFO L85 PathProgramCache]: Analyzing trace with hash -239138354, now seen corresponding path program 1 times [2021-10-28 09:53:33,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:53:33,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263913325] [2021-10-28 09:53:33,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:33,743 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:53:33,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:53:33,755 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:53:33,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:53:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:33,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:53:33,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:53:34,002 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 09:53:34,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-28 09:53:34,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-10-28 09:53:34,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:34,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:53:34,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-10-28 09:53:34,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:34,792 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:53:34,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263913325] [2021-10-28 09:53:34,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1263913325] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:34,793 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:34,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-28 09:53:34,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449359201] [2021-10-28 09:53:34,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:53:34,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:53:34,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:53:34,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:53:34,796 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-10-28 09:53:35,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:35,057 INFO L93 Difference]: Finished difference Result 110 states and 116 transitions. [2021-10-28 09:53:35,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:53:35,058 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 20 [2021-10-28 09:53:35,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:35,060 INFO L225 Difference]: With dead ends: 110 [2021-10-28 09:53:35,060 INFO L226 Difference]: Without dead ends: 110 [2021-10-28 09:53:35,060 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:53:35,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-10-28 09:53:35,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 95. [2021-10-28 09:53:35,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 59 states have (on average 1.5254237288135593) internal successors, (90), 73 states have internal predecessors, (90), 11 states have call successors, (11), 11 states have call predecessors, (11), 12 states have return successors, (12), 12 states have call predecessors, (12), 10 states have call successors, (12) [2021-10-28 09:53:35,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 113 transitions. [2021-10-28 09:53:35,072 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 113 transitions. Word has length 20 [2021-10-28 09:53:35,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:35,072 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 113 transitions. [2021-10-28 09:53:35,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 5 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-10-28 09:53:35,073 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 113 transitions. [2021-10-28 09:53:35,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 09:53:35,073 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:35,074 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] [2021-10-28 09:53:35,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-28 09:53:35,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:53:35,294 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 79 more)] === [2021-10-28 09:53:35,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:35,295 INFO L85 PathProgramCache]: Analyzing trace with hash -239138355, now seen corresponding path program 1 times [2021-10-28 09:53:35,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:53:35,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144535968] [2021-10-28 09:53:35,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:35,296 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:53:35,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:53:35,297 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:53:35,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 09:53:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:35,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:53:35,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:53:35,527 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-10-28 09:53:35,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-10-28 09:53:35,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-10-28 09:53:35,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:35,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:53:35,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-28 09:53:35,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:35,865 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:53:35,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144535968] [2021-10-28 09:53:35,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144535968] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:35,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:35,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-28 09:53:35,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786171288] [2021-10-28 09:53:35,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:53:35,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:53:35,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:53:35,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:53:35,868 INFO L87 Difference]: Start difference. First operand 95 states and 113 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-10-28 09:53:36,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:36,035 INFO L93 Difference]: Finished difference Result 131 states and 152 transitions. [2021-10-28 09:53:36,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:53:36,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 20 [2021-10-28 09:53:36,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:36,037 INFO L225 Difference]: With dead ends: 131 [2021-10-28 09:53:36,038 INFO L226 Difference]: Without dead ends: 127 [2021-10-28 09:53:36,038 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:53:36,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-10-28 09:53:36,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 104. [2021-10-28 09:53:36,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 66 states have (on average 1.5) internal successors, (99), 80 states have internal predecessors, (99), 11 states have call successors, (11), 11 states have call predecessors, (11), 14 states have return successors, (14), 14 states have call predecessors, (14), 10 states have call successors, (14) [2021-10-28 09:53:36,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 124 transitions. [2021-10-28 09:53:36,049 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 124 transitions. Word has length 20 [2021-10-28 09:53:36,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:36,049 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 124 transitions. [2021-10-28 09:53:36,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-10-28 09:53:36,050 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 124 transitions. [2021-10-28 09:53:36,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 09:53:36,051 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:36,051 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:53:36,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:53:36,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:53:36,262 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 79 more)] === [2021-10-28 09:53:36,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:36,263 INFO L85 PathProgramCache]: Analyzing trace with hash 240943427, now seen corresponding path program 1 times [2021-10-28 09:53:36,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:53:36,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038642739] [2021-10-28 09:53:36,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:36,264 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:53:36,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:53:36,266 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:53:36,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-28 09:53:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:36,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:53:36,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:53:36,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:36,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:53:36,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:36,608 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:53:36,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038642739] [2021-10-28 09:53:36,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1038642739] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:36,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:36,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-28 09:53:36,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380688985] [2021-10-28 09:53:36,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:53:36,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:53:36,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:53:36,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:53:36,610 INFO L87 Difference]: Start difference. First operand 104 states and 124 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:53:36,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:36,647 INFO L93 Difference]: Finished difference Result 103 states and 122 transitions. [2021-10-28 09:53:36,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:53:36,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2021-10-28 09:53:36,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:36,653 INFO L225 Difference]: With dead ends: 103 [2021-10-28 09:53:36,653 INFO L226 Difference]: Without dead ends: 103 [2021-10-28 09:53:36,653 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:53:36,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-10-28 09:53:36,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2021-10-28 09:53:36,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 66 states have (on average 1.4696969696969697) internal successors, (97), 79 states have internal predecessors, (97), 11 states have call successors, (11), 11 states have call predecessors, (11), 14 states have return successors, (14), 14 states have call predecessors, (14), 10 states have call successors, (14) [2021-10-28 09:53:36,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 122 transitions. [2021-10-28 09:53:36,668 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 122 transitions. Word has length 22 [2021-10-28 09:53:36,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:36,669 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 122 transitions. [2021-10-28 09:53:36,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:53:36,669 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 122 transitions. [2021-10-28 09:53:36,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-28 09:53:36,670 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:36,670 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:53:36,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:53:36,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:53:36,882 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting disconnect_6Err0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 79 more)] === [2021-10-28 09:53:36,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:36,882 INFO L85 PathProgramCache]: Analyzing trace with hash 2116285580, now seen corresponding path program 1 times [2021-10-28 09:53:36,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:53:36,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054935391] [2021-10-28 09:53:36,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:36,883 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:53:36,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:53:36,884 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:53:36,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-28 09:53:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:37,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:53:37,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:53:37,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:37,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:53:37,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:37,294 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:53:37,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054935391] [2021-10-28 09:53:37,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054935391] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:37,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:37,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-28 09:53:37,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167498332] [2021-10-28 09:53:37,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:53:37,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:53:37,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:53:37,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:53:37,296 INFO L87 Difference]: Start difference. First operand 103 states and 122 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:53:37,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:37,354 INFO L93 Difference]: Finished difference Result 121 states and 137 transitions. [2021-10-28 09:53:37,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:53:37,355 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 22 [2021-10-28 09:53:37,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:37,356 INFO L225 Difference]: With dead ends: 121 [2021-10-28 09:53:37,356 INFO L226 Difference]: Without dead ends: 113 [2021-10-28 09:53:37,357 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:53:37,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-28 09:53:37,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 107. [2021-10-28 09:53:37,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 69 states have (on average 1.391304347826087) internal successors, (96), 82 states have internal predecessors, (96), 11 states have call successors, (11), 11 states have call predecessors, (11), 15 states have return successors, (15), 15 states have call predecessors, (15), 10 states have call successors, (15) [2021-10-28 09:53:37,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2021-10-28 09:53:37,366 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 22 [2021-10-28 09:53:37,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:37,366 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2021-10-28 09:53:37,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 8 states have internal predecessors, (19), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:53:37,367 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2021-10-28 09:53:37,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 09:53:37,368 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:37,368 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:53:37,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:53:37,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:53:37,579 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 79 more)] === [2021-10-28 09:53:37,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:37,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1120687975, now seen corresponding path program 1 times [2021-10-28 09:53:37,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:53:37,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042673418] [2021-10-28 09:53:37,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:37,580 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:53:37,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:53:37,582 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:53:37,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-28 09:53:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:37,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:53:37,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:53:38,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:38,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:53:38,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:38,211 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:53:38,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042673418] [2021-10-28 09:53:38,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042673418] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:38,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:38,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2021-10-28 09:53:38,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067393829] [2021-10-28 09:53:38,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:53:38,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:53:38,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:53:38,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:53:38,213 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 09:53:38,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:38,485 INFO L93 Difference]: Finished difference Result 118 states and 123 transitions. [2021-10-28 09:53:38,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:53:38,486 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 23 [2021-10-28 09:53:38,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:38,487 INFO L225 Difference]: With dead ends: 118 [2021-10-28 09:53:38,487 INFO L226 Difference]: Without dead ends: 118 [2021-10-28 09:53:38,487 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:53:38,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-10-28 09:53:38,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2021-10-28 09:53:38,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 81 states have internal predecessors, (94), 11 states have call successors, (11), 11 states have call predecessors, (11), 15 states have return successors, (15), 15 states have call predecessors, (15), 10 states have call successors, (15) [2021-10-28 09:53:38,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 120 transitions. [2021-10-28 09:53:38,494 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 120 transitions. Word has length 23 [2021-10-28 09:53:38,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:38,495 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 120 transitions. [2021-10-28 09:53:38,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 09:53:38,495 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 120 transitions. [2021-10-28 09:53:38,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 09:53:38,496 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:38,496 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] [2021-10-28 09:53:38,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:53:38,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:53:38,708 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 79 more)] === [2021-10-28 09:53:38,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:38,708 INFO L85 PathProgramCache]: Analyzing trace with hash -381588475, now seen corresponding path program 1 times [2021-10-28 09:53:38,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:53:38,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229452586] [2021-10-28 09:53:38,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:38,709 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:53:38,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:53:38,710 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:53:38,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-28 09:53:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:38,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:53:38,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:53:38,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 09:53:39,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:39,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:53:39,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:39,157 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:53:39,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1229452586] [2021-10-28 09:53:39,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1229452586] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:39,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:39,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2021-10-28 09:53:39,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795606658] [2021-10-28 09:53:39,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:53:39,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:53:39,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:53:39,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:53:39,160 INFO L87 Difference]: Start difference. First operand 106 states and 120 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:53:39,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:39,328 INFO L93 Difference]: Finished difference Result 109 states and 119 transitions. [2021-10-28 09:53:39,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:53:39,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2021-10-28 09:53:39,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:39,330 INFO L225 Difference]: With dead ends: 109 [2021-10-28 09:53:39,330 INFO L226 Difference]: Without dead ends: 109 [2021-10-28 09:53:39,330 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:53:39,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-28 09:53:39,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2021-10-28 09:53:39,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 69 states have (on average 1.3478260869565217) internal successors, (93), 81 states have internal predecessors, (93), 11 states have call successors, (11), 11 states have call predecessors, (11), 15 states have return successors, (15), 15 states have call predecessors, (15), 10 states have call successors, (15) [2021-10-28 09:53:39,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 119 transitions. [2021-10-28 09:53:39,336 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 119 transitions. Word has length 24 [2021-10-28 09:53:39,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:39,337 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 119 transitions. [2021-10-28 09:53:39,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:53:39,337 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 119 transitions. [2021-10-28 09:53:39,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 09:53:39,338 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:39,338 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] [2021-10-28 09:53:39,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-28 09:53:39,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:53:39,553 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 79 more)] === [2021-10-28 09:53:39,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:39,553 INFO L85 PathProgramCache]: Analyzing trace with hash -887147100, now seen corresponding path program 1 times [2021-10-28 09:53:39,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:53:39,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624084227] [2021-10-28 09:53:39,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:39,554 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:53:39,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:53:39,555 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:53:39,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-28 09:53:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:39,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:53:39,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:53:39,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:39,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:53:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:39,963 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:53:39,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624084227] [2021-10-28 09:53:39,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624084227] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:39,964 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:39,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-28 09:53:39,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194532070] [2021-10-28 09:53:39,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:53:39,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:53:39,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:53:39,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:53:39,965 INFO L87 Difference]: Start difference. First operand 106 states and 119 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, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:53:39,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:39,985 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2021-10-28 09:53:39,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:53:39,986 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, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2021-10-28 09:53:39,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:39,986 INFO L225 Difference]: With dead ends: 71 [2021-10-28 09:53:39,987 INFO L226 Difference]: Without dead ends: 67 [2021-10-28 09:53:39,987 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:53:39,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-10-28 09:53:39,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-10-28 09:53:39,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 40 states have (on average 1.325) internal successors, (53), 50 states have internal predecessors, (53), 8 states have call successors, (8), 8 states have call predecessors, (8), 9 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2021-10-28 09:53:39,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2021-10-28 09:53:39,990 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 24 [2021-10-28 09:53:39,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:39,990 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2021-10-28 09:53:39,990 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, (7), 2 states have call predecessors, (7), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:53:39,990 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2021-10-28 09:53:39,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 09:53:39,991 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:39,991 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] [2021-10-28 09:53:40,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:53:40,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:53:40,192 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting probe2_6Err0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 79 more)] === [2021-10-28 09:53:40,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:40,192 INFO L85 PathProgramCache]: Analyzing trace with hash 783543578, now seen corresponding path program 1 times [2021-10-28 09:53:40,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:53:40,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871454028] [2021-10-28 09:53:40,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:40,193 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:53:40,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:53:40,194 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:53:40,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-28 09:53:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:40,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:53:40,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:53:40,479 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-10-28 09:53:40,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-10-28 09:53:40,636 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-10-28 09:53:40,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 22 [2021-10-28 09:53:40,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:40,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:53:41,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:41,009 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:53:41,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871454028] [2021-10-28 09:53:41,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871454028] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:41,010 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:41,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 8 [2021-10-28 09:53:41,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218670939] [2021-10-28 09:53:41,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:53:41,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:53:41,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:53:41,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:53:41,011 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:53:41,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:41,333 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2021-10-28 09:53:41,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:53:41,336 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 28 [2021-10-28 09:53:41,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:41,337 INFO L225 Difference]: With dead ends: 71 [2021-10-28 09:53:41,337 INFO L226 Difference]: Without dead ends: 71 [2021-10-28 09:53:41,337 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 38 SyntacticMatches, 11 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:53:41,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-28 09:53:41,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 66. [2021-10-28 09:53:41,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 40 states have (on average 1.3) internal successors, (52), 49 states have internal predecessors, (52), 8 states have call successors, (8), 8 states have call predecessors, (8), 9 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2021-10-28 09:53:41,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2021-10-28 09:53:41,341 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 28 [2021-10-28 09:53:41,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:41,341 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2021-10-28 09:53:41,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 09:53:41,341 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2021-10-28 09:53:41,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 09:53:41,342 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:41,342 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] [2021-10-28 09:53:41,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:53:41,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:53:41,554 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting probe2_6Err1REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 79 more)] === [2021-10-28 09:53:41,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:41,554 INFO L85 PathProgramCache]: Analyzing trace with hash 783543579, now seen corresponding path program 1 times [2021-10-28 09:53:41,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:53:41,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158861640] [2021-10-28 09:53:41,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:41,555 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:53:41,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:53:41,556 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:53:41,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-28 09:53:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:41,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 09:53:41,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:53:41,814 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-28 09:53:41,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-28 09:53:46,040 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-28 09:53:46,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-10-28 09:53:46,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:46,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:53:49,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:49,164 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:53:49,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158861640] [2021-10-28 09:53:49,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [158861640] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:49,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:49,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2021-10-28 09:53:49,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438620544] [2021-10-28 09:53:49,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 09:53:49,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:53:49,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 09:53:49,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=167, Unknown=2, NotChecked=0, Total=210 [2021-10-28 09:53:49,167 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 09:53:57,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:53:57,493 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2021-10-28 09:53:57,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:53:57,494 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 28 [2021-10-28 09:53:57,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:53:57,495 INFO L225 Difference]: With dead ends: 64 [2021-10-28 09:53:57,495 INFO L226 Difference]: Without dead ends: 64 [2021-10-28 09:53:57,495 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=123, Invalid=381, Unknown=2, NotChecked=0, Total=506 [2021-10-28 09:53:57,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-28 09:53:57,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-10-28 09:53:57,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 40 states have (on average 1.225) internal successors, (49), 47 states have internal predecessors, (49), 8 states have call successors, (8), 8 states have call predecessors, (8), 9 states have return successors, (9), 9 states have call predecessors, (9), 7 states have call successors, (9) [2021-10-28 09:53:57,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2021-10-28 09:53:57,499 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 28 [2021-10-28 09:53:57,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:53:57,499 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2021-10-28 09:53:57,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 12 states have internal predecessors, (34), 6 states have call successors, (13), 8 states have call predecessors, (13), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 09:53:57,499 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2021-10-28 09:53:57,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 09:53:57,500 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:53:57,501 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] [2021-10-28 09:53:57,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:53:57,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:53:57,711 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting entry_pointErr0REQUIRES_VIOLATION === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 79 more)] === [2021-10-28 09:53:57,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:53:57,711 INFO L85 PathProgramCache]: Analyzing trace with hash 558976828, now seen corresponding path program 1 times [2021-10-28 09:53:57,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:53:57,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [881748639] [2021-10-28 09:53:57,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:53:57,712 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:53:57,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:53:57,713 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:53:57,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-28 09:53:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:53:57,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 09:53:57,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:53:58,039 INFO L354 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2021-10-28 09:53:58,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 26 [2021-10-28 09:53:58,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-10-28 09:53:58,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 18 [2021-10-28 09:53:58,437 INFO L354 Elim1Store]: treesize reduction 20, result has 28.6 percent of original size [2021-10-28 09:53:58,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 30 treesize of output 33 [2021-10-28 09:53:58,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:58,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:53:58,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2021-10-28 09:53:59,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:53:59,008 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:53:59,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [881748639] [2021-10-28 09:53:59,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [881748639] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:53:59,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:53:59,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 6] imperfect sequences [] total 13 [2021-10-28 09:53:59,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259097457] [2021-10-28 09:53:59,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 09:53:59,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:53:59,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 09:53:59,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:53:59,011 INFO L87 Difference]: Start difference. First operand 64 states and 66 transitions. Second operand has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-28 09:54:47,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:54:47,733 INFO L93 Difference]: Finished difference Result 68 states and 69 transitions. [2021-10-28 09:54:47,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:54:47,733 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 29 [2021-10-28 09:54:47,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:54:47,734 INFO L225 Difference]: With dead ends: 68 [2021-10-28 09:54:47,734 INFO L226 Difference]: Without dead ends: 57 [2021-10-28 09:54:47,735 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 8 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=95, Invalid=283, Unknown=2, NotChecked=0, Total=380 [2021-10-28 09:54:47,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-28 09:54:47,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-10-28 09:54:47,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 40 states have internal predecessors, (42), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2021-10-28 09:54:47,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2021-10-28 09:54:47,737 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 29 [2021-10-28 09:54:47,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:54:47,737 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2021-10-28 09:54:47,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 12 states have internal predecessors, (36), 6 states have call successors, (9), 5 states have call predecessors, (9), 7 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-10-28 09:54:47,738 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2021-10-28 09:54:47,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-28 09:54:47,739 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:54:47,739 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] [2021-10-28 09:54:47,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:47,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:54:47,942 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 79 more)] === [2021-10-28 09:54:47,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:54:47,943 INFO L85 PathProgramCache]: Analyzing trace with hash 249986399, now seen corresponding path program 1 times [2021-10-28 09:54:47,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:54:47,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005816029] [2021-10-28 09:54:47,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:54:47,943 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:54:47,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:54:47,944 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:54:47,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-28 09:54:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:48,227 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:54:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:54:48,302 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 09:54:48,302 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:54:48,303 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-10-28 09:54:48,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-10-28 09:54:48,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-10-28 09:54:48,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-10-28 09:54:48,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-10-28 09:54:48,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-10-28 09:54:48,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-10-28 09:54:48,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-10-28 09:54:48,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-10-28 09:54:48,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-10-28 09:54:48,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-10-28 09:54:48,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-10-28 09:54:48,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-10-28 09:54:48,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 09:54:48,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 09:54:48,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-10-28 09:54:48,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-10-28 09:54:48,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-10-28 09:54:48,308 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-10-28 09:54:48,308 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-10-28 09:54:48,308 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-10-28 09:54:48,308 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-10-28 09:54:48,308 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-10-28 09:54:48,308 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 09:54:48,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 09:54:48,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 09:54:48,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 09:54:48,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-10-28 09:54:48,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-10-28 09:54:48,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-10-28 09:54:48,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-10-28 09:54:48,310 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-10-28 09:54:48,310 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-10-28 09:54:48,310 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-10-28 09:54:48,310 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-10-28 09:54:48,310 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-10-28 09:54:48,310 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-10-28 09:54:48,311 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-10-28 09:54:48,311 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-10-28 09:54:48,311 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-10-28 09:54:48,311 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-10-28 09:54:48,311 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-10-28 09:54:48,311 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-10-28 09:54:48,312 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:48,312 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:48,312 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:48,312 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:48,312 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:48,313 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:48,313 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-10-28 09:54:48,313 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-10-28 09:54:48,313 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-10-28 09:54:48,313 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-10-28 09:54:48,313 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-10-28 09:54:48,314 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-10-28 09:54:48,314 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-10-28 09:54:48,314 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-10-28 09:54:48,314 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:48,314 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:48,315 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:48,315 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:48,315 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:48,315 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:48,315 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe2_6Err0REQUIRES_VIOLATION [2021-10-28 09:54:48,315 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe2_6Err1REQUIRES_VIOLATION [2021-10-28 09:54:48,316 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe2_6Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:48,316 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe2_6Err3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:48,316 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location probe2_6Err4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:48,316 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-10-28 09:54:48,316 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-10-28 09:54:48,317 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-10-28 09:54:48,317 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-10-28 09:54:48,317 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-10-28 09:54:48,317 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-10-28 09:54:48,317 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-10-28 09:54:48,317 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-10-28 09:54:48,318 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0REQUIRES_VIOLATION [2021-10-28 09:54:48,318 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1REQUIRES_VIOLATION [2021-10-28 09:54:48,318 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err0REQUIRES_VIOLATION [2021-10-28 09:54:48,318 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err1REQUIRES_VIOLATION [2021-10-28 09:54:48,318 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:48,318 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:48,319 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE [2021-10-28 09:54:48,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:54:48,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:54:48,553 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:54:48,557 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:54:48,572 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-10-28 09:54:48,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:54:48 BoogieIcfgContainer [2021-10-28 09:54:48,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:54:48,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:54:48,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:54:48,594 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:54:48,595 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:53:32" (3/4) ... [2021-10-28 09:54:48,598 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:54:48,598 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:54:48,599 INFO L168 Benchmark]: Toolchain (without parser) took 78208.60 ms. Allocated memory was 65.0 MB in the beginning and 121.6 MB in the end (delta: 56.6 MB). Free memory was 40.9 MB in the beginning and 42.5 MB in the end (delta: -1.7 MB). Peak memory consumption was 56.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:48,600 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 65.0 MB. Free memory was 44.7 MB in the beginning and 44.7 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:54:48,600 INFO L168 Benchmark]: CACSL2BoogieTranslator took 799.78 ms. Allocated memory is still 65.0 MB. Free memory was 40.8 MB in the beginning and 45.4 MB in the end (delta: -4.6 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:48,601 INFO L168 Benchmark]: Boogie Preprocessor took 135.87 ms. Allocated memory is still 65.0 MB. Free memory was 45.4 MB in the beginning and 40.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:48,601 INFO L168 Benchmark]: RCFGBuilder took 1365.93 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 40.5 MB in the beginning and 48.7 MB in the end (delta: -8.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:48,602 INFO L168 Benchmark]: TraceAbstraction took 75897.45 ms. Allocated memory was 81.8 MB in the beginning and 121.6 MB in the end (delta: 39.8 MB). Free memory was 48.3 MB in the beginning and 42.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 45.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:54:48,602 INFO L168 Benchmark]: Witness Printer took 4.34 ms. Allocated memory is still 121.6 MB. Free memory is still 42.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:54:48,604 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 65.0 MB. Free memory was 44.7 MB in the beginning and 44.7 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 799.78 ms. Allocated memory is still 65.0 MB. Free memory was 40.8 MB in the beginning and 45.4 MB in the end (delta: -4.6 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 135.87 ms. Allocated memory is still 65.0 MB. Free memory was 45.4 MB in the beginning and 40.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1365.93 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 40.5 MB in the beginning and 48.7 MB in the end (delta: -8.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 75897.45 ms. Allocated memory was 81.8 MB in the beginning and 121.6 MB in the end (delta: 39.8 MB). Free memory was 48.3 MB in the beginning and 42.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 45.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.34 ms. Allocated memory is still 121.6 MB. Free memory is still 42.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s 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: 791]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 791. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L783] struct A a6; VAL [\old(a6)=null, \old(a6)=null, \old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L792] CALL entry_point() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L785] CALL, EXPR probe2_6(&a6) VAL [a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L764] int ret = - -3; VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=3] [L765] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L765] RET, EXPR ldv_malloc(sizeof(int)) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(int))={1:0}, ret=3] [L765] int *p = (int *)ldv_malloc(sizeof(int)); [L766] COND FALSE !(p==0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=3] [L768] CALL, EXPR f6() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L758] return __VERIFIER_nondet_int(); [L768] RET, EXPR f6() VAL [a={3:0}, a={3:0}, a6={3:0}, f6()=0, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=3] [L768] ret = f6() [L769] COND FALSE !(ret<0) VAL [a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L771] CALL, EXPR g6() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] [L761] return __VERIFIER_nondet_int(); [L771] RET, EXPR g6() VAL [a={3:0}, a={3:0}, a6={3:0}, g6()=-2147483648, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=0] [L771] ret = g6() [L772] COND TRUE ret<0 [L773] return ret; VAL [\result=-2147483648, a={3:0}, a={3:0}, a6={3:0}, ldv_global_msg_list={-2147483648:0}, p={1:0}, ret=2147483648] [L785] RET, EXPR probe2_6(&a6) VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, probe2_6(&a6)=-2147483648] [L785] int ret = probe2_6(&a6); [L786] COND FALSE !(ret==0) VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=2147483648] [L789] a6.p = 0 VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}, ret=2147483648] [L792] RET entry_point() VAL [a6={3:0}, ldv_global_msg_list={-2147483648:0}] - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 51 procedures, 374 locations, 83 error locations. Started 1 CEGAR loops. OverallTime: 75.8s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 58.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 647 SDtfs, 962 SDslu, 1596 SDs, 0 SdLazy, 985 SolverSat, 263 SolverUnsat, 24 SolverUnknown, 0 SolverNotchecked, 50.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 535 GetRequests, 414 SyntacticMatches, 30 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 14.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=0, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 81 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 295 NumberOfCodeBlocks, 295 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 498 ConstructedInterpolants, 45 QuantifiedInterpolants, 3168 SizeOfPredicates, 29 NumberOfNonLiveVariables, 1202 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 09:54:48,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85acce5c-58bf-4a15-a062-40aedabf98cd/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...