./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN --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 14e3e63e231fa0c862b0912d52fb4325a0198eb4d9a43387e9996f85700980cb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:17:28,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:17:28,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:17:28,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:17:28,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:17:28,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:17:28,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:17:28,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:17:28,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:17:28,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:17:28,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:17:28,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:17:28,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:17:28,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:17:28,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:17:28,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:17:28,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:17:28,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:17:28,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:17:28,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:17:28,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:17:28,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:17:28,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:17:28,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:17:28,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:17:28,155 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:17:28,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:17:28,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:17:28,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:17:28,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:17:28,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:17:28,159 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:17:28,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:17:28,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:17:28,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:17:28,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:17:28,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:17:28,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:17:28,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:17:28,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:17:28,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:17:28,170 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-20 12:17:28,195 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:17:28,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:17:28,196 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:17:28,196 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:17:28,197 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:17:28,197 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:17:28,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:17:28,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:17:28,198 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:17:28,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:17:28,199 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:17:28,199 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:17:28,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:17:28,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:17:28,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:17:28,200 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 12:17:28,200 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 12:17:28,200 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 12:17:28,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:17:28,201 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:17:28,201 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:17:28,201 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:17:28,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:17:28,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:17:28,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:17:28,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:17:28,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:17:28,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:17:28,203 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:17:28,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:17:28,203 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_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14e3e63e231fa0c862b0912d52fb4325a0198eb4d9a43387e9996f85700980cb [2022-11-20 12:17:28,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:17:28,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:17:28,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:17:28,491 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:17:28,493 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:17:28,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i [2022-11-20 12:17:31,546 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:17:31,920 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:17:31,921 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i [2022-11-20 12:17:31,935 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/data/0986706e9/1147f25609644ede90803a2199b510ed/FLAG3eefad051 [2022-11-20 12:17:31,956 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/data/0986706e9/1147f25609644ede90803a2199b510ed [2022-11-20 12:17:31,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:17:31,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:17:31,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:17:31,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:17:31,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:17:31,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:17:31" (1/1) ... [2022-11-20 12:17:31,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a7e569d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:31, skipping insertion in model container [2022-11-20 12:17:31,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:17:31" (1/1) ... [2022-11-20 12:17:31,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:17:32,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:17:32,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:17:32,524 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-11-20 12:17:32,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@9739e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:32, skipping insertion in model container [2022-11-20 12:17:32,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:17:32,526 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-20 12:17:32,528 INFO L158 Benchmark]: Toolchain (without parser) took 561.29ms. Allocated memory is still 148.9MB. Free memory was 117.7MB in the beginning and 104.0MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 12:17:32,529 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 148.9MB. Free memory was 109.5MB in the beginning and 109.3MB in the end (delta: 148.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:17:32,530 INFO L158 Benchmark]: CACSL2BoogieTranslator took 556.93ms. Allocated memory is still 148.9MB. Free memory was 117.7MB in the beginning and 104.0MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 12:17:32,532 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 148.9MB. Free memory was 109.5MB in the beginning and 109.3MB in the end (delta: 148.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 556.93ms. Allocated memory is still 148.9MB. Free memory was 117.7MB in the beginning and 104.0MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN --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 14e3e63e231fa0c862b0912d52fb4325a0198eb4d9a43387e9996f85700980cb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:17:34,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:17:34,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:17:34,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:17:34,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:17:34,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:17:34,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:17:34,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:17:34,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:17:34,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:17:34,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:17:34,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:17:34,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:17:34,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:17:34,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:17:34,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:17:34,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:17:34,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:17:34,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:17:34,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:17:34,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:17:34,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:17:34,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:17:34,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:17:34,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:17:34,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:17:34,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:17:34,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:17:34,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:17:34,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:17:34,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:17:34,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:17:34,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:17:34,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:17:34,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:17:34,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:17:34,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:17:34,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:17:34,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:17:34,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:17:34,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:17:34,998 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-20 12:17:35,027 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:17:35,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:17:35,030 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:17:35,030 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:17:35,031 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:17:35,031 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:17:35,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:17:35,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:17:35,033 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:17:35,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:17:35,034 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:17:35,034 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:17:35,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:17:35,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:17:35,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:17:35,035 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 12:17:35,035 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 12:17:35,035 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 12:17:35,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:17:35,036 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:17:35,036 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:17:35,036 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:17:35,036 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:17:35,037 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:17:35,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:17:35,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:17:35,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:17:35,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:17:35,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:17:35,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:17:35,038 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:17:35,038 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:17:35,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:17:35,039 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_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14e3e63e231fa0c862b0912d52fb4325a0198eb4d9a43387e9996f85700980cb [2022-11-20 12:17:35,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:17:35,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:17:35,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:17:35,446 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:17:35,447 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:17:35,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i [2022-11-20 12:17:38,545 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:17:38,843 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:17:38,851 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i [2022-11-20 12:17:38,871 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/data/f719b3a29/2229824d1f054911b23f0676f8a392ef/FLAG0d7b6cf69 [2022-11-20 12:17:38,889 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/data/f719b3a29/2229824d1f054911b23f0676f8a392ef [2022-11-20 12:17:38,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:17:38,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:17:38,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:17:38,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:17:38,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:17:38,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:17:38" (1/1) ... [2022-11-20 12:17:38,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d80e72f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:38, skipping insertion in model container [2022-11-20 12:17:38,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:17:38" (1/1) ... [2022-11-20 12:17:38,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:17:38,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:17:39,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:17:39,481 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 12:17:39,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:17:39,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:17:39,548 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:17:39,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:17:39,691 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:17:39,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:39 WrapperNode [2022-11-20 12:17:39,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:17:39,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:17:39,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:17:39,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:17:39,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:39" (1/1) ... [2022-11-20 12:17:39,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:39" (1/1) ... [2022-11-20 12:17:39,780 INFO L138 Inliner]: procedures = 165, calls = 70, calls flagged for inlining = 22, calls inlined = 14, statements flattened = 100 [2022-11-20 12:17:39,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:17:39,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:17:39,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:17:39,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:17:39,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:39" (1/1) ... [2022-11-20 12:17:39,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:39" (1/1) ... [2022-11-20 12:17:39,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:39" (1/1) ... [2022-11-20 12:17:39,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:39" (1/1) ... [2022-11-20 12:17:39,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:39" (1/1) ... [2022-11-20 12:17:39,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:39" (1/1) ... [2022-11-20 12:17:39,838 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:39" (1/1) ... [2022-11-20 12:17:39,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:39" (1/1) ... [2022-11-20 12:17:39,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:17:39,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:17:39,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:17:39,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:17:39,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:39" (1/1) ... [2022-11-20 12:17:39,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:17:39,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:17:39,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:17:39,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:17:39,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 12:17:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2022-11-20 12:17:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2022-11-20 12:17:39,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 12:17:39,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 12:17:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2022-11-20 12:17:39,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2022-11-20 12:17:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:17:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:17:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:17:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:17:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 12:17:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:17:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:17:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:17:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:17:40,116 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:17:40,129 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:17:40,656 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:17:40,663 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:17:40,670 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:17:40,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:17:40 BoogieIcfgContainer [2022-11-20 12:17:40,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:17:40,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:17:40,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:17:40,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:17:40,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:17:38" (1/3) ... [2022-11-20 12:17:40,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e727b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:17:40, skipping insertion in model container [2022-11-20 12:17:40,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:17:39" (2/3) ... [2022-11-20 12:17:40,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e727b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:17:40, skipping insertion in model container [2022-11-20 12:17:40,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:17:40" (3/3) ... [2022-11-20 12:17:40,688 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test22_3-2.i [2022-11-20 12:17:40,708 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:17:40,709 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2022-11-20 12:17:40,775 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:17:40,784 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@50a70244, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:17:40,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-20 12:17:40,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 48 states have (on average 1.6041666666666667) internal successors, (77), 70 states have internal predecessors, (77), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 12:17:40,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 12:17:40,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:40,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:40,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:40,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:40,811 INFO L85 PathProgramCache]: Analyzing trace with hash 265003773, now seen corresponding path program 1 times [2022-11-20 12:17:40,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:40,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971545900] [2022-11-20 12:17:40,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:40,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:40,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:40,840 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:40,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 12:17:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:40,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:17:40,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:41,066 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-20 12:17:41,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:41,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:41,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:41,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971545900] [2022-11-20 12:17:41,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971545900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:41,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:41,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:17:41,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185729460] [2022-11-20 12:17:41,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:41,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:17:41,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:41,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:17:41,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:17:41,234 INFO L87 Difference]: Start difference. First operand has 77 states, 48 states have (on average 1.6041666666666667) internal successors, (77), 70 states have internal predecessors, (77), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:41,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:41,673 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2022-11-20 12:17:41,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:17:41,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-20 12:17:41,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:41,686 INFO L225 Difference]: With dead ends: 101 [2022-11-20 12:17:41,686 INFO L226 Difference]: Without dead ends: 99 [2022-11-20 12:17:41,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:17:41,692 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 52 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:41,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 283 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:17:41,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-20 12:17:41,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 80. [2022-11-20 12:17:41,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 51 states have (on average 1.5686274509803921) internal successors, (80), 72 states have internal predecessors, (80), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-20 12:17:41,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2022-11-20 12:17:41,742 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 10 [2022-11-20 12:17:41,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:41,743 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2022-11-20 12:17:41,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:41,743 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2022-11-20 12:17:41,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 12:17:41,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:41,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:41,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:41,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:41,957 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:41,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:41,957 INFO L85 PathProgramCache]: Analyzing trace with hash 293632924, now seen corresponding path program 1 times [2022-11-20 12:17:41,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:41,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771125382] [2022-11-20 12:17:41,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:41,960 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:41,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:41,964 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:41,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 12:17:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:42,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:17:42,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:42,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:42,118 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:42,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:42,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771125382] [2022-11-20 12:17:42,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [771125382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:42,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:42,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:17:42,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790835995] [2022-11-20 12:17:42,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:42,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:17:42,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:42,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:17:42,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:17:42,123 INFO L87 Difference]: Start difference. First operand 80 states and 89 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:42,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:42,159 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2022-11-20 12:17:42,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:17:42,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-20 12:17:42,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:42,161 INFO L225 Difference]: With dead ends: 84 [2022-11-20 12:17:42,161 INFO L226 Difference]: Without dead ends: 84 [2022-11-20 12:17:42,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:17:42,163 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 3 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:42,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 329 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:17:42,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-20 12:17:42,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 78. [2022-11-20 12:17:42,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 50 states have (on average 1.54) internal successors, (77), 70 states have internal predecessors, (77), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-20 12:17:42,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2022-11-20 12:17:42,172 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 10 [2022-11-20 12:17:42,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:42,172 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2022-11-20 12:17:42,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:42,173 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2022-11-20 12:17:42,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 12:17:42,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:42,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:42,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:42,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:42,385 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:42,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:42,386 INFO L85 PathProgramCache]: Analyzing trace with hash -374817580, now seen corresponding path program 1 times [2022-11-20 12:17:42,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:42,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119898105] [2022-11-20 12:17:42,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:42,387 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:42,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:42,389 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:42,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 12:17:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:42,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-20 12:17:42,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:42,495 INFO L350 Elim1Store]: Elim1 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 [2022-11-20 12:17:42,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:42,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:42,626 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:42,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119898105] [2022-11-20 12:17:42,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1119898105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:42,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:42,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:17:42,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365064644] [2022-11-20 12:17:42,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:42,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:17:42,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:42,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:17:42,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:17:42,630 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:43,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:43,015 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2022-11-20 12:17:43,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:17:43,017 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-20 12:17:43,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:43,019 INFO L225 Difference]: With dead ends: 89 [2022-11-20 12:17:43,019 INFO L226 Difference]: Without dead ends: 89 [2022-11-20 12:17:43,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:17:43,020 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 41 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:43,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 365 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:17:43,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-11-20 12:17:43,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 77. [2022-11-20 12:17:43,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 50 states have (on average 1.52) internal successors, (76), 69 states have internal predecessors, (76), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-20 12:17:43,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2022-11-20 12:17:43,029 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 11 [2022-11-20 12:17:43,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:43,030 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2022-11-20 12:17:43,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:43,030 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2022-11-20 12:17:43,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 12:17:43,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:43,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:43,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:43,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:43,242 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:43,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:43,243 INFO L85 PathProgramCache]: Analyzing trace with hash 700915977, now seen corresponding path program 1 times [2022-11-20 12:17:43,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:43,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340805359] [2022-11-20 12:17:43,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:43,244 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:43,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:43,246 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:43,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 12:17:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:43,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:17:43,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:43,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:43,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:43,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:43,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340805359] [2022-11-20 12:17:43,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340805359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:43,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:43,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:17:43,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46823348] [2022-11-20 12:17:43,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:43,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:17:43,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:43,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:17:43,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:17:43,362 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:43,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:43,394 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2022-11-20 12:17:43,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:17:43,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-20 12:17:43,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:43,396 INFO L225 Difference]: With dead ends: 83 [2022-11-20 12:17:43,396 INFO L226 Difference]: Without dead ends: 83 [2022-11-20 12:17:43,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:17:43,398 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 19 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:43,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 311 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:17:43,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-20 12:17:43,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 77. [2022-11-20 12:17:43,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 50 states have (on average 1.5) internal successors, (75), 69 states have internal predecessors, (75), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-20 12:17:43,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2022-11-20 12:17:43,406 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 14 [2022-11-20 12:17:43,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:43,407 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2022-11-20 12:17:43,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:43,407 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2022-11-20 12:17:43,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 12:17:43,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:43,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:43,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:43,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:43,620 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:43,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:43,622 INFO L85 PathProgramCache]: Analyzing trace with hash 504402472, now seen corresponding path program 1 times [2022-11-20 12:17:43,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:43,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091077484] [2022-11-20 12:17:43,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:43,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:43,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:43,629 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:43,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 12:17:43,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:43,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:17:43,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:43,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:43,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:43,813 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:43,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091077484] [2022-11-20 12:17:43,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091077484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:43,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:43,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:17:43,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129069005] [2022-11-20 12:17:43,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:43,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:17:43,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:43,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:17:43,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:17:43,816 INFO L87 Difference]: Start difference. First operand 77 states and 84 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:43,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:43,903 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2022-11-20 12:17:43,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:17:43,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-20 12:17:43,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:43,906 INFO L225 Difference]: With dead ends: 89 [2022-11-20 12:17:43,907 INFO L226 Difference]: Without dead ends: 89 [2022-11-20 12:17:43,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:17:43,914 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 11 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:43,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 378 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:17:43,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-11-20 12:17:43,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 84. [2022-11-20 12:17:43,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 54 states have (on average 1.462962962962963) internal successors, (79), 74 states have internal predecessors, (79), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-20 12:17:43,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2022-11-20 12:17:43,939 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 14 [2022-11-20 12:17:43,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:43,940 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2022-11-20 12:17:43,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:43,941 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2022-11-20 12:17:43,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 12:17:43,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:43,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:43,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:44,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:44,154 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:44,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:44,154 INFO L85 PathProgramCache]: Analyzing trace with hash 458362539, now seen corresponding path program 1 times [2022-11-20 12:17:44,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:44,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230086978] [2022-11-20 12:17:44,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:44,155 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:44,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:44,157 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:44,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 12:17:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:44,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:17:44,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:44,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:44,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:44,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:44,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230086978] [2022-11-20 12:17:44,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230086978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:44,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:44,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:17:44,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018307623] [2022-11-20 12:17:44,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:44,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:17:44,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:44,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:17:44,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:17:44,281 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:44,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:44,318 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2022-11-20 12:17:44,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:17:44,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-20 12:17:44,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:44,320 INFO L225 Difference]: With dead ends: 88 [2022-11-20 12:17:44,320 INFO L226 Difference]: Without dead ends: 88 [2022-11-20 12:17:44,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:17:44,323 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 18 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:44,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 232 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:17:44,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-20 12:17:44,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2022-11-20 12:17:44,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 75 states have internal predecessors, (80), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-20 12:17:44,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2022-11-20 12:17:44,350 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 16 [2022-11-20 12:17:44,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:44,350 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2022-11-20 12:17:44,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:44,351 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2022-11-20 12:17:44,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 12:17:44,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:44,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:44,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:44,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:44,564 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:44,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:44,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1265077694, now seen corresponding path program 1 times [2022-11-20 12:17:44,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:44,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1085049994] [2022-11-20 12:17:44,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:44,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:44,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:44,566 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:44,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 12:17:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:44,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:17:44,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:44,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:44,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:17:44,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:44,750 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:44,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1085049994] [2022-11-20 12:17:44,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1085049994] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:17:44,751 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:17:44,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 12:17:44,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622304112] [2022-11-20 12:17:44,752 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:17:44,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:17:44,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:44,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:17:44,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:17:44,753 INFO L87 Difference]: Start difference. First operand 85 states and 93 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:44,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:44,872 INFO L93 Difference]: Finished difference Result 91 states and 98 transitions. [2022-11-20 12:17:44,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:17:44,873 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-20 12:17:44,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:44,874 INFO L225 Difference]: With dead ends: 91 [2022-11-20 12:17:44,874 INFO L226 Difference]: Without dead ends: 91 [2022-11-20 12:17:44,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:17:44,875 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 42 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:44,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 343 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:17:44,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-20 12:17:44,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 88. [2022-11-20 12:17:44,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 58 states have (on average 1.4310344827586208) internal successors, (83), 78 states have internal predecessors, (83), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-20 12:17:44,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2022-11-20 12:17:44,887 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 17 [2022-11-20 12:17:44,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:44,888 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2022-11-20 12:17:44,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:44,888 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2022-11-20 12:17:44,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 12:17:44,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:44,889 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:44,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:45,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:45,101 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:45,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:45,102 INFO L85 PathProgramCache]: Analyzing trace with hash 876788587, now seen corresponding path program 2 times [2022-11-20 12:17:45,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:45,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669423436] [2022-11-20 12:17:45,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:17:45,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:45,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:45,103 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:45,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 12:17:45,186 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:17:45,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:17:45,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 12:17:45,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:45,197 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-20 12:17:45,296 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 12:17:45,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:45,297 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:45,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669423436] [2022-11-20 12:17:45,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669423436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:45,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:45,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:17:45,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43618960] [2022-11-20 12:17:45,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:45,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:17:45,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:45,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:17:45,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:17:45,300 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:45,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:45,688 INFO L93 Difference]: Finished difference Result 94 states and 104 transitions. [2022-11-20 12:17:45,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:17:45,689 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-20 12:17:45,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:45,690 INFO L225 Difference]: With dead ends: 94 [2022-11-20 12:17:45,690 INFO L226 Difference]: Without dead ends: 94 [2022-11-20 12:17:45,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:17:45,691 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 35 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:45,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 370 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:17:45,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-11-20 12:17:45,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 87. [2022-11-20 12:17:45,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 77 states have internal predecessors, (82), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-20 12:17:45,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2022-11-20 12:17:45,696 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 20 [2022-11-20 12:17:45,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:45,696 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2022-11-20 12:17:45,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:45,696 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2022-11-20 12:17:45,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 12:17:45,697 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:45,697 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:45,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:45,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:45,898 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:45,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:45,898 INFO L85 PathProgramCache]: Analyzing trace with hash 876788588, now seen corresponding path program 1 times [2022-11-20 12:17:45,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:45,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512540079] [2022-11-20 12:17:45,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:45,899 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:45,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:45,901 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:45,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 12:17:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:46,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:17:46,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:46,134 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:46,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:17:46,377 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:46,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:46,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512540079] [2022-11-20 12:17:46,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [512540079] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:17:46,377 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:17:46,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-20 12:17:46,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464718168] [2022-11-20 12:17:46,378 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:17:46,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 12:17:46,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:46,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 12:17:46,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:17:46,379 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:46,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:46,726 INFO L93 Difference]: Finished difference Result 96 states and 103 transitions. [2022-11-20 12:17:46,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:17:46,727 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-20 12:17:46,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:46,728 INFO L225 Difference]: With dead ends: 96 [2022-11-20 12:17:46,728 INFO L226 Difference]: Without dead ends: 96 [2022-11-20 12:17:46,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:17:46,729 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 52 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:46,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 550 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:17:46,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-20 12:17:46,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 93. [2022-11-20 12:17:46,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 64 states have (on average 1.375) internal successors, (88), 83 states have internal predecessors, (88), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-20 12:17:46,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 101 transitions. [2022-11-20 12:17:46,734 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 101 transitions. Word has length 20 [2022-11-20 12:17:46,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:46,734 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 101 transitions. [2022-11-20 12:17:46,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:46,735 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 101 transitions. [2022-11-20 12:17:46,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 12:17:46,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:46,745 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:46,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:46,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:46,946 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:46,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:46,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1295948282, now seen corresponding path program 1 times [2022-11-20 12:17:46,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:46,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75752352] [2022-11-20 12:17:46,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:46,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:46,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:46,948 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:46,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 12:17:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:47,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:17:47,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:47,071 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 12:17:47,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:47,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:47,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [75752352] [2022-11-20 12:17:47,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [75752352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:47,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:47,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:17:47,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999426342] [2022-11-20 12:17:47,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:47,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:17:47,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:47,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:17:47,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:17:47,074 INFO L87 Difference]: Start difference. First operand 93 states and 101 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:17:47,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:47,222 INFO L93 Difference]: Finished difference Result 99 states and 107 transitions. [2022-11-20 12:17:47,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 12:17:47,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2022-11-20 12:17:47,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:47,223 INFO L225 Difference]: With dead ends: 99 [2022-11-20 12:17:47,223 INFO L226 Difference]: Without dead ends: 86 [2022-11-20 12:17:47,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:17:47,224 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 31 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:47,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 144 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:17:47,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-20 12:17:47,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 82. [2022-11-20 12:17:47,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 57 states have (on average 1.4035087719298245) internal successors, (80), 75 states have internal predecessors, (80), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 12:17:47,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2022-11-20 12:17:47,228 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 22 [2022-11-20 12:17:47,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:47,228 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2022-11-20 12:17:47,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 12:17:47,228 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2022-11-20 12:17:47,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 12:17:47,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:47,229 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:47,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:47,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:47,430 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:47,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:47,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1092187508, now seen corresponding path program 2 times [2022-11-20 12:17:47,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:47,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814892948] [2022-11-20 12:17:47,431 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:17:47,431 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:47,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:47,432 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:47,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 12:17:47,523 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:17:47,523 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:17:47,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 12:17:47,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:47,548 INFO L350 Elim1Store]: Elim1 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 [2022-11-20 12:17:47,763 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-20 12:17:47,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:47,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:47,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814892948] [2022-11-20 12:17:47,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814892948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:47,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:47,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 12:17:47,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957501500] [2022-11-20 12:17:47,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:47,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 12:17:47,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:47,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 12:17:47,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:17:47,766 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:48,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:48,245 INFO L93 Difference]: Finished difference Result 96 states and 104 transitions. [2022-11-20 12:17:48,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:17:48,246 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-20 12:17:48,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:48,247 INFO L225 Difference]: With dead ends: 96 [2022-11-20 12:17:48,247 INFO L226 Difference]: Without dead ends: 96 [2022-11-20 12:17:48,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:17:48,248 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 43 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:48,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 430 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:17:48,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-20 12:17:48,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 81. [2022-11-20 12:17:48,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 74 states have internal predecessors, (79), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 12:17:48,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 87 transitions. [2022-11-20 12:17:48,251 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 87 transitions. Word has length 26 [2022-11-20 12:17:48,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:48,252 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 87 transitions. [2022-11-20 12:17:48,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:48,252 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions. [2022-11-20 12:17:48,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 12:17:48,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:48,253 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:48,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:48,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:48,453 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:48,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:48,454 INFO L85 PathProgramCache]: Analyzing trace with hash 2084512317, now seen corresponding path program 1 times [2022-11-20 12:17:48,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:48,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964202271] [2022-11-20 12:17:48,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:48,455 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:48,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:48,456 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:48,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 12:17:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:48,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-20 12:17:48,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:48,839 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:48,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:17:49,465 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:17:49,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:49,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964202271] [2022-11-20 12:17:49,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964202271] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:17:49,465 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:17:49,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2022-11-20 12:17:49,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458464343] [2022-11-20 12:17:49,466 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:17:49,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-20 12:17:49,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:49,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-20 12:17:49,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2022-11-20 12:17:49,467 INFO L87 Difference]: Start difference. First operand 81 states and 87 transitions. Second operand has 26 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 26 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:50,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:50,094 INFO L93 Difference]: Finished difference Result 87 states and 93 transitions. [2022-11-20 12:17:50,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 12:17:50,095 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 26 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-11-20 12:17:50,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:50,096 INFO L225 Difference]: With dead ends: 87 [2022-11-20 12:17:50,096 INFO L226 Difference]: Without dead ends: 87 [2022-11-20 12:17:50,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=278, Invalid=652, Unknown=0, NotChecked=0, Total=930 [2022-11-20 12:17:50,097 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 31 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:50,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 958 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:17:50,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-20 12:17:50,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-11-20 12:17:50,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 63 states have (on average 1.3492063492063493) internal successors, (85), 80 states have internal predecessors, (85), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 12:17:50,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2022-11-20 12:17:50,101 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 30 [2022-11-20 12:17:50,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:50,101 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2022-11-20 12:17:50,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 26 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:50,102 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2022-11-20 12:17:50,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 12:17:50,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:50,103 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:50,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:50,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:50,318 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:50,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:50,319 INFO L85 PathProgramCache]: Analyzing trace with hash -532510371, now seen corresponding path program 2 times [2022-11-20 12:17:50,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:50,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829668236] [2022-11-20 12:17:50,320 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:17:50,320 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:50,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:50,321 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:50,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 12:17:50,470 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:17:50,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:17:50,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 12:17:50,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:50,486 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-20 12:17:50,633 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-20 12:17:50,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:50,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:50,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829668236] [2022-11-20 12:17:50,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1829668236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:50,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:50,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 12:17:50,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182955872] [2022-11-20 12:17:50,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:50,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 12:17:50,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:50,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 12:17:50,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:17:50,636 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:51,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:51,030 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2022-11-20 12:17:51,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:17:51,031 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-11-20 12:17:51,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:51,032 INFO L225 Difference]: With dead ends: 88 [2022-11-20 12:17:51,032 INFO L226 Difference]: Without dead ends: 88 [2022-11-20 12:17:51,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:17:51,033 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 34 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:51,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 341 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:17:51,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-20 12:17:51,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2022-11-20 12:17:51,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 78 states have internal predecessors, (83), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 12:17:51,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2022-11-20 12:17:51,041 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 36 [2022-11-20 12:17:51,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:51,043 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2022-11-20 12:17:51,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:51,044 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2022-11-20 12:17:51,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 12:17:51,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:51,048 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:51,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:51,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:51,260 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:51,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:51,260 INFO L85 PathProgramCache]: Analyzing trace with hash -532510370, now seen corresponding path program 1 times [2022-11-20 12:17:51,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:51,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186704826] [2022-11-20 12:17:51,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:51,261 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:51,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:51,262 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:51,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 12:17:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:51,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 12:17:51,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:51,507 INFO L350 Elim1Store]: Elim1 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 [2022-11-20 12:17:51,799 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-20 12:17:51,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:51,800 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:51,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186704826] [2022-11-20 12:17:51,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186704826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:51,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:51,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 12:17:51,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773048027] [2022-11-20 12:17:51,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:51,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:17:51,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:51,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:17:51,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:17:51,802 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:52,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:52,305 INFO L93 Difference]: Finished difference Result 90 states and 97 transitions. [2022-11-20 12:17:52,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:17:52,306 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-11-20 12:17:52,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:52,307 INFO L225 Difference]: With dead ends: 90 [2022-11-20 12:17:52,307 INFO L226 Difference]: Without dead ends: 90 [2022-11-20 12:17:52,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:17:52,308 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 38 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:52,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 429 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:17:52,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-20 12:17:52,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 83. [2022-11-20 12:17:52,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 76 states have internal predecessors, (81), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 12:17:52,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2022-11-20 12:17:52,312 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 36 [2022-11-20 12:17:52,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:52,312 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2022-11-20 12:17:52,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:52,312 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2022-11-20 12:17:52,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 12:17:52,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:52,313 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:52,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:52,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:52,514 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:52,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:52,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1979095631, now seen corresponding path program 1 times [2022-11-20 12:17:52,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:52,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753266963] [2022-11-20 12:17:52,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:52,515 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:52,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:52,516 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:52,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 12:17:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:52,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:17:52,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:52,800 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-20 12:17:52,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:52,801 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:52,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753266963] [2022-11-20 12:17:52,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753266963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:52,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:52,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:17:52,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141263168] [2022-11-20 12:17:52,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:52,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:17:52,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:52,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:17:52,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:17:52,803 INFO L87 Difference]: Start difference. First operand 83 states and 89 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:52,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:52,848 INFO L93 Difference]: Finished difference Result 83 states and 88 transitions. [2022-11-20 12:17:52,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:17:52,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-11-20 12:17:52,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:52,850 INFO L225 Difference]: With dead ends: 83 [2022-11-20 12:17:52,850 INFO L226 Difference]: Without dead ends: 83 [2022-11-20 12:17:52,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:17:52,851 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 21 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:52,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 303 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:17:52,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-20 12:17:52,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-11-20 12:17:52,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 63 states have (on average 1.2698412698412698) internal successors, (80), 76 states have internal predecessors, (80), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 12:17:52,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 88 transitions. [2022-11-20 12:17:52,855 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 88 transitions. Word has length 36 [2022-11-20 12:17:52,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:52,855 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 88 transitions. [2022-11-20 12:17:52,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:52,856 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 88 transitions. [2022-11-20 12:17:52,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-20 12:17:52,857 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:52,857 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:52,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:53,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:53,070 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:53,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:53,071 INFO L85 PathProgramCache]: Analyzing trace with hash -2103088419, now seen corresponding path program 1 times [2022-11-20 12:17:53,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:53,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398142516] [2022-11-20 12:17:53,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:53,071 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:53,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:53,072 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:53,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-20 12:17:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:53,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:17:53,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:53,386 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-20 12:17:53,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:53,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:53,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398142516] [2022-11-20 12:17:53,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398142516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:53,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:53,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:17:53,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464374168] [2022-11-20 12:17:53,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:53,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:17:53,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:53,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:17:53,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:17:53,390 INFO L87 Difference]: Start difference. First operand 83 states and 88 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:53,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:53,459 INFO L93 Difference]: Finished difference Result 83 states and 87 transitions. [2022-11-20 12:17:53,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:17:53,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-11-20 12:17:53,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:53,461 INFO L225 Difference]: With dead ends: 83 [2022-11-20 12:17:53,461 INFO L226 Difference]: Without dead ends: 83 [2022-11-20 12:17:53,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:17:53,461 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 27 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:53,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 348 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:17:53,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-20 12:17:53,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-11-20 12:17:53,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 63 states have (on average 1.253968253968254) internal successors, (79), 75 states have internal predecessors, (79), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 12:17:53,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2022-11-20 12:17:53,464 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 38 [2022-11-20 12:17:53,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:53,465 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2022-11-20 12:17:53,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:17:53,465 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2022-11-20 12:17:53,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-20 12:17:53,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:53,466 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:53,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:53,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:53,675 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:53,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:53,675 INFO L85 PathProgramCache]: Analyzing trace with hash 633351514, now seen corresponding path program 1 times [2022-11-20 12:17:53,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:53,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296041836] [2022-11-20 12:17:53,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:53,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:53,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:53,677 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:53,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-20 12:17:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:53,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 12:17:53,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:53,930 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-20 12:17:54,144 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-20 12:17:54,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:54,144 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:54,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296041836] [2022-11-20 12:17:54,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296041836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:54,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:54,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 12:17:54,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258974207] [2022-11-20 12:17:54,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:54,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 12:17:54,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:54,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 12:17:54,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:17:54,146 INFO L87 Difference]: Start difference. First operand 83 states and 87 transitions. Second operand has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:17:54,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:54,468 INFO L93 Difference]: Finished difference Result 109 states and 115 transitions. [2022-11-20 12:17:54,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 12:17:54,469 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2022-11-20 12:17:54,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:54,470 INFO L225 Difference]: With dead ends: 109 [2022-11-20 12:17:54,470 INFO L226 Difference]: Without dead ends: 109 [2022-11-20 12:17:54,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-11-20 12:17:54,471 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 110 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:54,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 223 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 21 Unchecked, 0.3s Time] [2022-11-20 12:17:54,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-20 12:17:54,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 95. [2022-11-20 12:17:54,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 74 states have (on average 1.2702702702702702) internal successors, (94), 86 states have internal predecessors, (94), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-20 12:17:54,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 103 transitions. [2022-11-20 12:17:54,476 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 103 transitions. Word has length 46 [2022-11-20 12:17:54,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:54,476 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 103 transitions. [2022-11-20 12:17:54,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:17:54,477 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 103 transitions. [2022-11-20 12:17:54,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-20 12:17:54,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:54,478 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:54,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:54,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:54,692 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_kobject_putErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:54,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:54,693 INFO L85 PathProgramCache]: Analyzing trace with hash 633351515, now seen corresponding path program 1 times [2022-11-20 12:17:54,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:54,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862770522] [2022-11-20 12:17:54,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:54,693 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:54,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:54,695 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:54,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-20 12:17:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:54,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-20 12:17:54,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:54,981 INFO L350 Elim1Store]: Elim1 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 [2022-11-20 12:17:55,381 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-20 12:17:55,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:55,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:55,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862770522] [2022-11-20 12:17:55,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [862770522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:55,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:55,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:17:55,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27346560] [2022-11-20 12:17:55,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:55,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 12:17:55,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:55,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 12:17:55,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:17:55,384 INFO L87 Difference]: Start difference. First operand 95 states and 103 transitions. Second operand has 12 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:17:55,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:55,903 INFO L93 Difference]: Finished difference Result 97 states and 103 transitions. [2022-11-20 12:17:55,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 12:17:55,904 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2022-11-20 12:17:55,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:55,905 INFO L225 Difference]: With dead ends: 97 [2022-11-20 12:17:55,905 INFO L226 Difference]: Without dead ends: 97 [2022-11-20 12:17:55,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-11-20 12:17:55,906 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 127 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:55,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 330 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 205 Invalid, 0 Unknown, 7 Unchecked, 0.4s Time] [2022-11-20 12:17:55,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-20 12:17:55,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2022-11-20 12:17:55,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 75 states have (on average 1.2133333333333334) internal successors, (91), 86 states have internal predecessors, (91), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-20 12:17:55,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 101 transitions. [2022-11-20 12:17:55,910 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 101 transitions. Word has length 46 [2022-11-20 12:17:55,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:55,910 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 101 transitions. [2022-11-20 12:17:55,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:17:55,910 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 101 transitions. [2022-11-20 12:17:55,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-20 12:17:55,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:55,923 INFO L195 NwaCegarLoop]: trace histogram [16, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:55,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:56,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:56,123 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:56,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:56,124 INFO L85 PathProgramCache]: Analyzing trace with hash 438707658, now seen corresponding path program 1 times [2022-11-20 12:17:56,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:56,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118070931] [2022-11-20 12:17:56,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:56,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:56,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:56,125 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:56,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-20 12:17:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:56,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:17:56,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:56,519 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-20 12:17:56,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:56,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:56,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118070931] [2022-11-20 12:17:56,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118070931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:56,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:56,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 12:17:56,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072398095] [2022-11-20 12:17:56,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:56,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 12:17:56,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:56,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 12:17:56,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 12:17:56,522 INFO L87 Difference]: Start difference. First operand 95 states and 101 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 12:17:56,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:56,653 INFO L93 Difference]: Finished difference Result 97 states and 101 transitions. [2022-11-20 12:17:56,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:17:56,654 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 51 [2022-11-20 12:17:56,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:56,655 INFO L225 Difference]: With dead ends: 97 [2022-11-20 12:17:56,655 INFO L226 Difference]: Without dead ends: 93 [2022-11-20 12:17:56,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:17:56,656 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 45 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:56,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 407 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:17:56,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-20 12:17:56,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-11-20 12:17:56,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 74 states have (on average 1.1891891891891893) internal successors, (88), 84 states have internal predecessors, (88), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-20 12:17:56,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 97 transitions. [2022-11-20 12:17:56,659 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 97 transitions. Word has length 51 [2022-11-20 12:17:56,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:56,659 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 97 transitions. [2022-11-20 12:17:56,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 8 states have internal predecessors, (29), 4 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 12:17:56,660 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 97 transitions. [2022-11-20 12:17:56,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-20 12:17:56,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:56,660 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:56,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:56,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:56,874 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_kobject_putErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:56,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:56,875 INFO L85 PathProgramCache]: Analyzing trace with hash 885076734, now seen corresponding path program 1 times [2022-11-20 12:17:56,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:56,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539842611] [2022-11-20 12:17:56,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:56,876 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:56,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:56,877 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:56,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-20 12:17:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:57,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-20 12:17:57,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:57,182 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-20 12:17:57,416 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-20 12:17:57,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:57,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:57,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539842611] [2022-11-20 12:17:57,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539842611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:57,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:57,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:17:57,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723289521] [2022-11-20 12:17:57,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:57,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 12:17:57,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:57,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 12:17:57,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-20 12:17:57,419 INFO L87 Difference]: Start difference. First operand 93 states and 97 transitions. Second operand has 12 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:17:57,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:57,880 INFO L93 Difference]: Finished difference Result 119 states and 124 transitions. [2022-11-20 12:17:57,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:17:57,881 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2022-11-20 12:17:57,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:57,882 INFO L225 Difference]: With dead ends: 119 [2022-11-20 12:17:57,882 INFO L226 Difference]: Without dead ends: 119 [2022-11-20 12:17:57,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-11-20 12:17:57,883 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 81 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:57,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 278 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 235 Invalid, 0 Unknown, 20 Unchecked, 0.4s Time] [2022-11-20 12:17:57,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-20 12:17:57,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 111. [2022-11-20 12:17:57,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 90 states have (on average 1.2222222222222223) internal successors, (110), 100 states have internal predecessors, (110), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-11-20 12:17:57,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 122 transitions. [2022-11-20 12:17:57,887 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 122 transitions. Word has length 52 [2022-11-20 12:17:57,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:57,887 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 122 transitions. [2022-11-20 12:17:57,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:17:57,887 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 122 transitions. [2022-11-20 12:17:57,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-20 12:17:57,888 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:57,888 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:57,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-20 12:17:58,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:58,099 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_kobject_putErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:58,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:58,099 INFO L85 PathProgramCache]: Analyzing trace with hash 885076735, now seen corresponding path program 1 times [2022-11-20 12:17:58,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:58,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [452113186] [2022-11-20 12:17:58,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:58,100 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:58,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:58,101 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:58,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-20 12:17:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:17:58,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-20 12:17:58,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:17:58,410 INFO L350 Elim1Store]: Elim1 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 [2022-11-20 12:17:58,874 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-20 12:17:58,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:17:58,875 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:17:58,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [452113186] [2022-11-20 12:17:58,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [452113186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:17:58,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:17:58,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 12:17:58,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600264753] [2022-11-20 12:17:58,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:17:58,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 12:17:58,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:17:58,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:17:58,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:17:58,877 INFO L87 Difference]: Start difference. First operand 111 states and 122 transitions. Second operand has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:17:59,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:17:59,488 INFO L93 Difference]: Finished difference Result 131 states and 142 transitions. [2022-11-20 12:17:59,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:17:59,489 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2022-11-20 12:17:59,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:17:59,490 INFO L225 Difference]: With dead ends: 131 [2022-11-20 12:17:59,490 INFO L226 Difference]: Without dead ends: 131 [2022-11-20 12:17:59,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:17:59,491 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 153 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:17:59,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 343 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 199 Invalid, 0 Unknown, 12 Unchecked, 0.4s Time] [2022-11-20 12:17:59,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-11-20 12:17:59,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 127. [2022-11-20 12:17:59,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 105 states have (on average 1.2380952380952381) internal successors, (130), 116 states have internal predecessors, (130), 5 states have call successors, (5), 5 states have call predecessors, (5), 6 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-11-20 12:17:59,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 142 transitions. [2022-11-20 12:17:59,506 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 142 transitions. Word has length 52 [2022-11-20 12:17:59,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:17:59,507 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 142 transitions. [2022-11-20 12:17:59,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:17:59,507 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 142 transitions. [2022-11-20 12:17:59,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-20 12:17:59,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:17:59,508 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:17:59,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2022-11-20 12:17:59,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:59,720 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_kobject_putErr7ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:17:59,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:17:59,721 INFO L85 PathProgramCache]: Analyzing trace with hash 516809115, now seen corresponding path program 1 times [2022-11-20 12:17:59,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:17:59,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1776270139] [2022-11-20 12:17:59,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:17:59,721 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:17:59,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:17:59,722 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:17:59,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-20 12:18:00,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:00,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-20 12:18:00,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:18:00,636 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-20 12:18:00,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:18:00,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:18:00,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1776270139] [2022-11-20 12:18:00,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1776270139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:18:00,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:18:00,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:18:00,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605925916] [2022-11-20 12:18:00,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:18:00,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 12:18:00,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:18:00,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:18:00,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:18:00,638 INFO L87 Difference]: Start difference. First operand 127 states and 142 transitions. Second operand has 13 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:18:01,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:18:01,169 INFO L93 Difference]: Finished difference Result 130 states and 141 transitions. [2022-11-20 12:18:01,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:18:01,170 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 55 [2022-11-20 12:18:01,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:18:01,171 INFO L225 Difference]: With dead ends: 130 [2022-11-20 12:18:01,171 INFO L226 Difference]: Without dead ends: 130 [2022-11-20 12:18:01,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:18:01,172 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 202 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:18:01,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 429 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 180 Invalid, 0 Unknown, 11 Unchecked, 0.3s Time] [2022-11-20 12:18:01,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-11-20 12:18:01,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2022-11-20 12:18:01,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 105 states have (on average 1.2285714285714286) internal successors, (129), 116 states have internal predecessors, (129), 5 states have call successors, (5), 5 states have call predecessors, (5), 6 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-11-20 12:18:01,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 141 transitions. [2022-11-20 12:18:01,176 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 141 transitions. Word has length 55 [2022-11-20 12:18:01,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:18:01,177 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 141 transitions. [2022-11-20 12:18:01,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 12:18:01,177 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 141 transitions. [2022-11-20 12:18:01,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 12:18:01,178 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:18:01,178 INFO L195 NwaCegarLoop]: trace histogram [16, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:18:01,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-20 12:18:01,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:01,388 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:18:01,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:18:01,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1999474558, now seen corresponding path program 1 times [2022-11-20 12:18:01,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:18:01,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1601107156] [2022-11-20 12:18:01,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:18:01,389 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:01,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:18:01,390 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:18:01,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-20 12:18:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:01,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-20 12:18:01,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:18:01,728 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-20 12:18:01,984 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-20 12:18:01,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:18:02,225 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-20 12:18:02,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:18:02,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1601107156] [2022-11-20 12:18:02,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1601107156] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:18:02,226 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:18:02,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 12 [2022-11-20 12:18:02,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305611163] [2022-11-20 12:18:02,227 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:18:02,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 12:18:02,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:18:02,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:18:02,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:18:02,228 INFO L87 Difference]: Start difference. First operand 127 states and 141 transitions. Second operand has 13 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-20 12:18:02,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:18:02,730 INFO L93 Difference]: Finished difference Result 137 states and 145 transitions. [2022-11-20 12:18:02,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:18:02,730 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 59 [2022-11-20 12:18:02,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:18:02,732 INFO L225 Difference]: With dead ends: 137 [2022-11-20 12:18:02,732 INFO L226 Difference]: Without dead ends: 137 [2022-11-20 12:18:02,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:18:02,732 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 97 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:18:02,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 328 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 223 Invalid, 0 Unknown, 44 Unchecked, 0.4s Time] [2022-11-20 12:18:02,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-20 12:18:02,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 131. [2022-11-20 12:18:02,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 108 states have (on average 1.2037037037037037) internal successors, (130), 120 states have internal predecessors, (130), 5 states have call successors, (5), 5 states have call predecessors, (5), 7 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-20 12:18:02,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 143 transitions. [2022-11-20 12:18:02,738 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 143 transitions. Word has length 59 [2022-11-20 12:18:02,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:18:02,738 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 143 transitions. [2022-11-20 12:18:02,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-20 12:18:02,738 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 143 transitions. [2022-11-20 12:18:02,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-20 12:18:02,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:18:02,739 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:18:02,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-20 12:18:02,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:02,954 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_kobject_putErr9ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:18:02,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:18:02,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1197288958, now seen corresponding path program 1 times [2022-11-20 12:18:02,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:18:02,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1907213321] [2022-11-20 12:18:02,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:18:02,955 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:02,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:18:02,956 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:18:02,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-20 12:18:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:03,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 122 conjunts are in the unsatisfiable core [2022-11-20 12:18:03,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:18:03,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-20 12:18:03,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-11-20 12:18:03,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:03,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:03,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:03,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:03,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:03,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:03,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:03,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:03,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:03,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:04,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:04,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:04,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:04,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:04,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:04,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:04,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:04,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:04,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:04,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:04,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:04,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:04,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:04,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:04,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:04,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:04,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:04,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:04,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-11-20 12:18:05,188 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1756 (_ BitVec 32)) (v_ArrVal_1757 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_$Pointer$.offset)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_1756) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_1757)) |c_#memory_$Pointer$.offset|)) is different from true [2022-11-20 12:18:05,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:05,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:05,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-20 12:18:05,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:05,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:05,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:05,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:05,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:05,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:05,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 45 [2022-11-20 12:18:05,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-20 12:18:05,900 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:18:05,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:18:07,263 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:18:07,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1907213321] [2022-11-20 12:18:07,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1907213321] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:18:07,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [950296374] [2022-11-20 12:18:07,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:18:07,263 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 12:18:07,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 12:18:07,265 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 12:18:07,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2022-11-20 12:18:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:08,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 118 conjunts are in the unsatisfiable core [2022-11-20 12:18:08,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:18:08,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 12:18:08,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-11-20 12:18:08,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:08,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:08,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:08,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:08,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:08,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:08,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:08,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:08,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:08,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:08,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:08,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:08,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:08,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:08,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:08,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:08,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:08,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:08,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:08,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:08,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:08,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:08,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:08,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:08,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:08,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:08,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:08,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:08,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-11-20 12:18:08,929 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1756 (_ BitVec 32)) (v_ArrVal_1953 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_$Pointer$.offset)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_1756) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_1953)))) is different from true [2022-11-20 12:18:08,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:08,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:08,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-20 12:18:09,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 39 [2022-11-20 12:18:09,276 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:18:09,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-20 12:18:09,416 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:18:09,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:18:11,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [950296374] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:18:11,824 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:18:11,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 39] total 44 [2022-11-20 12:18:11,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236874748] [2022-11-20 12:18:11,824 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:18:11,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-11-20 12:18:11,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:18:11,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-11-20 12:18:11,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=3198, Unknown=2, NotChecked=230, Total=3660 [2022-11-20 12:18:11,827 INFO L87 Difference]: Start difference. First operand 131 states and 143 transitions. Second operand has 45 states, 43 states have (on average 1.5116279069767442) internal successors, (65), 42 states have internal predecessors, (65), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 12:18:15,980 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_old(#memory_$Pointer$.offset)| |c_LDV_INIT_LIST_HEAD_#in~list.base|)) (.cse1 (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) (and (exists ((v_ArrVal_1756 (_ BitVec 32)) (v_ArrVal_1757 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store .cse0 |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_1756) .cse1 v_ArrVal_1757)) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_1756 (_ BitVec 32)) (v_ArrVal_1953 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store .cse0 |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_1756) .cse1 v_ArrVal_1953)))))) is different from true [2022-11-20 12:18:17,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:18:17,692 INFO L93 Difference]: Finished difference Result 129 states and 139 transitions. [2022-11-20 12:18:17,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-20 12:18:17,693 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 43 states have (on average 1.5116279069767442) internal successors, (65), 42 states have internal predecessors, (65), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 58 [2022-11-20 12:18:17,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:18:17,693 INFO L225 Difference]: With dead ends: 129 [2022-11-20 12:18:17,694 INFO L226 Difference]: Without dead ends: 129 [2022-11-20 12:18:17,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 93 SyntacticMatches, 2 SemanticMatches, 87 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1644 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=530, Invalid=6789, Unknown=3, NotChecked=510, Total=7832 [2022-11-20 12:18:17,697 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 226 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 251 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:18:17,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 655 Invalid, 1659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1379 Invalid, 0 Unknown, 251 Unchecked, 3.3s Time] [2022-11-20 12:18:17,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-11-20 12:18:17,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2022-11-20 12:18:17,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 108 states have (on average 1.1666666666666667) internal successors, (126), 118 states have internal predecessors, (126), 5 states have call successors, (5), 5 states have call predecessors, (5), 7 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-20 12:18:17,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 139 transitions. [2022-11-20 12:18:17,703 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 139 transitions. Word has length 58 [2022-11-20 12:18:17,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:18:17,704 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 139 transitions. [2022-11-20 12:18:17,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 43 states have (on average 1.5116279069767442) internal successors, (65), 42 states have internal predecessors, (65), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 12:18:17,704 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 139 transitions. [2022-11-20 12:18:17,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 12:18:17,705 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:18:17,705 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:18:17,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2022-11-20 12:18:17,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-20 12:18:18,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:18,113 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_kobject_putErr10ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:18:18,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:18:18,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1538748096, now seen corresponding path program 1 times [2022-11-20 12:18:18,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:18:18,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1443119611] [2022-11-20 12:18:18,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:18:18,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:18,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:18:18,115 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:18:18,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-20 12:18:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:18,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 122 conjunts are in the unsatisfiable core [2022-11-20 12:18:18,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:18:18,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 12:18:18,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:18,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:18,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:18,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:18,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:18,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:18,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:18,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:18,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:18,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:19,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:19,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:19,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:19,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:19,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:19,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:19,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:19,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:19,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:19,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:19,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:19,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:19,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:19,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:19,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:19,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:19,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:19,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:19,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:19,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:19,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-11-20 12:18:20,158 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2147 (_ BitVec 32)) (v_ArrVal_2145 (_ BitVec 32))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2145) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_2147)))) is different from true [2022-11-20 12:18:20,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:20,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:20,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-20 12:18:20,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:20,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:20,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:20,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:20,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:20,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:20,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 45 [2022-11-20 12:18:20,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-20 12:18:20,813 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:18:20,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:18:22,149 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:18:22,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1443119611] [2022-11-20 12:18:22,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1443119611] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:18:22,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [891925838] [2022-11-20 12:18:22,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:18:22,150 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 12:18:22,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 12:18:22,151 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 12:18:22,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2022-11-20 12:18:23,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:23,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 119 conjunts are in the unsatisfiable core [2022-11-20 12:18:23,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:18:23,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-20 12:18:23,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:23,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:23,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:23,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:23,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:23,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:23,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:23,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:23,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:23,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:23,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:23,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:23,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:23,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:23,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:23,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:23,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:23,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:23,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:23,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:23,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:23,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:23,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:23,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:23,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:23,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-11-20 12:18:23,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:23,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:23,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:23,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-20 12:18:23,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2022-11-20 12:18:23,784 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2344 (_ BitVec 32)) (v_ArrVal_2145 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2145) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_2344)) |c_#memory_$Pointer$.base|)) is different from true [2022-11-20 12:18:23,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:23,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:23,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-20 12:18:23,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 39 [2022-11-20 12:18:24,117 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:18:24,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-20 12:18:24,268 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:18:24,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:18:26,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [891925838] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:18:26,792 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:18:26,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 41] total 46 [2022-11-20 12:18:26,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171474239] [2022-11-20 12:18:26,793 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:18:26,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-20 12:18:26,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:18:26,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-20 12:18:26,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=3299, Unknown=2, NotChecked=234, Total=3782 [2022-11-20 12:18:26,794 INFO L87 Difference]: Start difference. First operand 129 states and 139 transitions. Second operand has 46 states, 45 states have (on average 1.4666666666666666) internal successors, (66), 43 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 12:18:30,299 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_old(#memory_$Pointer$.base)| |c_LDV_INIT_LIST_HEAD_#in~list.base|)) (.cse1 (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) (and (exists ((v_ArrVal_2344 (_ BitVec 32)) (v_ArrVal_2145 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store .cse0 |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2145) .cse1 v_ArrVal_2344)) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_2147 (_ BitVec 32)) (v_ArrVal_2145 (_ BitVec 32))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store .cse0 |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2145) .cse1 v_ArrVal_2147)))))) is different from true [2022-11-20 12:18:32,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:18:32,624 INFO L93 Difference]: Finished difference Result 123 states and 129 transitions. [2022-11-20 12:18:32,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-20 12:18:32,625 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 1.4666666666666666) internal successors, (66), 43 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 59 [2022-11-20 12:18:32,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:18:32,626 INFO L225 Difference]: With dead ends: 123 [2022-11-20 12:18:32,626 INFO L226 Difference]: Without dead ends: 121 [2022-11-20 12:18:32,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 96 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1561 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=478, Invalid=5231, Unknown=3, NotChecked=450, Total=6162 [2022-11-20 12:18:32,628 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 224 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 1948 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 2224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 245 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:18:32,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 664 Invalid, 2224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1948 Invalid, 0 Unknown, 245 Unchecked, 4.6s Time] [2022-11-20 12:18:32,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-20 12:18:32,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-11-20 12:18:32,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 102 states have (on average 1.1176470588235294) internal successors, (114), 110 states have internal predecessors, (114), 5 states have call successors, (5), 5 states have call predecessors, (5), 7 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-20 12:18:32,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 127 transitions. [2022-11-20 12:18:32,633 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 127 transitions. Word has length 59 [2022-11-20 12:18:32,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:18:32,634 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 127 transitions. [2022-11-20 12:18:32,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 1.4666666666666666) internal successors, (66), 43 states have internal predecessors, (66), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 12:18:32,634 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 127 transitions. [2022-11-20 12:18:32,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-20 12:18:32,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:18:32,635 INFO L195 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:18:32,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2022-11-20 12:18:32,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2022-11-20 12:18:33,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt [2022-11-20 12:18:33,040 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_kobject_putErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:18:33,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:18:33,041 INFO L85 PathProgramCache]: Analyzing trace with hash 130971687, now seen corresponding path program 1 times [2022-11-20 12:18:33,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:18:33,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875240660] [2022-11-20 12:18:33,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:18:33,042 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:33,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:18:33,043 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:18:33,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-20 12:18:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:33,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-20 12:18:33,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:18:33,513 INFO L350 Elim1Store]: Elim1 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 [2022-11-20 12:18:34,086 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-20 12:18:34,086 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:18:34,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:18:34,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875240660] [2022-11-20 12:18:34,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875240660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:18:34,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:18:34,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 12:18:34,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192153158] [2022-11-20 12:18:34,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:18:34,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 12:18:34,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:18:34,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:18:34,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:18:34,088 INFO L87 Difference]: Start difference. First operand 121 states and 127 transitions. Second operand has 13 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 12:18:34,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:18:34,737 INFO L93 Difference]: Finished difference Result 120 states and 125 transitions. [2022-11-20 12:18:34,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:18:34,738 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 65 [2022-11-20 12:18:34,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:18:34,739 INFO L225 Difference]: With dead ends: 120 [2022-11-20 12:18:34,739 INFO L226 Difference]: Without dead ends: 120 [2022-11-20 12:18:34,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 50 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:18:34,739 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 108 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 12:18:34,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 262 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 230 Invalid, 0 Unknown, 7 Unchecked, 0.5s Time] [2022-11-20 12:18:34,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-11-20 12:18:34,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2022-11-20 12:18:34,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 102 states have (on average 1.0980392156862746) internal successors, (112), 109 states have internal predecessors, (112), 5 states have call successors, (5), 5 states have call predecessors, (5), 7 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-20 12:18:34,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 125 transitions. [2022-11-20 12:18:34,744 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 125 transitions. Word has length 65 [2022-11-20 12:18:34,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:18:34,744 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 125 transitions. [2022-11-20 12:18:34,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 12:18:34,745 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 125 transitions. [2022-11-20 12:18:34,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-20 12:18:34,745 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:18:34,746 INFO L195 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:18:34,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-20 12:18:34,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:34,946 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_kobject_putErr7ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:18:34,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:18:34,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1947249523, now seen corresponding path program 1 times [2022-11-20 12:18:34,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:18:34,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524517547] [2022-11-20 12:18:34,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:18:34,948 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:34,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:18:34,948 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:18:34,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-20 12:18:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:35,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-20 12:18:35,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:18:35,990 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-20 12:18:35,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:18:35,990 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:18:35,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524517547] [2022-11-20 12:18:35,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524517547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:18:35,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:18:35,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 12:18:35,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166189952] [2022-11-20 12:18:35,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:18:35,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 12:18:35,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:18:35,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 12:18:35,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:18:35,992 INFO L87 Difference]: Start difference. First operand 120 states and 125 transitions. Second operand has 13 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 12:18:36,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:18:36,475 INFO L93 Difference]: Finished difference Result 119 states and 123 transitions. [2022-11-20 12:18:36,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 12:18:36,476 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 68 [2022-11-20 12:18:36,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:18:36,477 INFO L225 Difference]: With dead ends: 119 [2022-11-20 12:18:36,477 INFO L226 Difference]: Without dead ends: 119 [2022-11-20 12:18:36,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 53 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:18:36,478 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 102 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:18:36,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 294 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 151 Invalid, 0 Unknown, 8 Unchecked, 0.3s Time] [2022-11-20 12:18:36,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-20 12:18:36,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2022-11-20 12:18:36,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 102 states have (on average 1.0784313725490196) internal successors, (110), 108 states have internal predecessors, (110), 5 states have call successors, (5), 5 states have call predecessors, (5), 7 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-20 12:18:36,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 123 transitions. [2022-11-20 12:18:36,482 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 123 transitions. Word has length 68 [2022-11-20 12:18:36,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:18:36,482 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 123 transitions. [2022-11-20 12:18:36,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 12:18:36,482 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 123 transitions. [2022-11-20 12:18:36,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-20 12:18:36,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:18:36,483 INFO L195 NwaCegarLoop]: trace histogram [16, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:18:36,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-20 12:18:36,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:36,684 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-11-20 12:18:36,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:18:36,684 INFO L85 PathProgramCache]: Analyzing trace with hash -418298125, now seen corresponding path program 1 times [2022-11-20 12:18:36,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:18:36,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203529292] [2022-11-20 12:18:36,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:18:36,685 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:36,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:18:36,686 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:18:36,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-20 12:18:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:18:37,164 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:18:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:18:37,492 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-20 12:18:37,492 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:18:37,493 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 21 remaining) [2022-11-20 12:18:37,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE (19 of 21 remaining) [2022-11-20 12:18:37,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (18 of 21 remaining) [2022-11-20 12:18:37,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 21 remaining) [2022-11-20 12:18:37,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 21 remaining) [2022-11-20 12:18:37,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (15 of 21 remaining) [2022-11-20 12:18:37,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 21 remaining) [2022-11-20 12:18:37,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 21 remaining) [2022-11-20 12:18:37,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 21 remaining) [2022-11-20 12:18:37,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 21 remaining) [2022-11-20 12:18:37,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 21 remaining) [2022-11-20 12:18:37,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 21 remaining) [2022-11-20 12:18:37,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 21 remaining) [2022-11-20 12:18:37,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 21 remaining) [2022-11-20 12:18:37,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 21 remaining) [2022-11-20 12:18:37,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr6ASSERT_VIOLATIONMEMORY_FREE (5 of 21 remaining) [2022-11-20 12:18:37,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr7ASSERT_VIOLATIONMEMORY_FREE (4 of 21 remaining) [2022-11-20 12:18:37,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr8ASSERT_VIOLATIONMEMORY_FREE (3 of 21 remaining) [2022-11-20 12:18:37,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr9ASSERT_VIOLATIONMEMORY_FREE (2 of 21 remaining) [2022-11-20 12:18:37,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr10ASSERT_VIOLATIONMEMORY_FREE (1 of 21 remaining) [2022-11-20 12:18:37,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr11ASSERT_VIOLATIONMEMORY_FREE (0 of 21 remaining) [2022-11-20 12:18:37,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-20 12:18:37,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:18:37,721 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:18:37,724 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:18:37,734 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,738 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,739 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,739 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,739 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,739 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,740 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,740 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,740 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,740 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,741 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,741 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,744 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,745 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,745 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,747 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,748 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,750 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,751 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,751 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,751 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,752 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,752 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,753 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,753 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,757 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,757 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,757 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,758 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,758 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,758 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,758 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,758 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,759 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,759 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,759 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,759 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,760 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,760 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,760 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,760 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,765 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,766 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,766 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,766 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,766 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,767 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,767 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,767 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,767 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,768 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,768 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,768 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,768 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,768 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,769 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,769 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,769 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,769 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,770 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,770 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,770 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,770 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,771 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,771 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,771 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,771 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,778 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,778 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,779 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,779 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,779 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,779 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,780 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,780 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,780 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,783 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,783 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,783 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,784 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:18:37 BoogieIcfgContainer [2022-11-20 12:18:37,825 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:18:37,826 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:18:37,826 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:18:37,826 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:18:37,827 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:17:40" (3/4) ... [2022-11-20 12:18:37,829 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 12:18:37,841 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,842 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,842 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,842 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,842 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,842 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,843 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,843 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,843 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,843 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,843 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,843 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,844 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,844 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,844 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,844 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,844 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,844 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,845 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,845 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,845 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,845 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,845 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,846 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,846 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,846 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,846 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,846 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,846 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,847 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,847 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,847 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,847 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,847 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,847 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,848 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,848 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,848 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,848 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,848 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,848 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,849 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,849 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,849 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,849 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,849 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,849 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,850 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,850 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,850 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,850 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,850 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,850 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,851 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,851 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,851 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,851 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,851 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,851 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,852 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,852 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,852 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,852 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,853 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,853 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,853 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,853 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,853 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,853 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,854 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,854 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,854 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,854 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,854 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,854 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,855 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,857 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,858 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,858 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-11-20 12:18:37,858 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-11-20 12:18:37,913 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:18:37,913 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:18:37,914 INFO L158 Benchmark]: Toolchain (without parser) took 59020.51ms. Allocated memory was 86.0MB in the beginning and 144.7MB in the end (delta: 58.7MB). Free memory was 45.3MB in the beginning and 108.7MB in the end (delta: -63.4MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. [2022-11-20 12:18:37,914 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 86.0MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:18:37,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 797.60ms. Allocated memory is still 86.0MB. Free memory was 45.0MB in the beginning and 48.8MB in the end (delta: -3.8MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2022-11-20 12:18:37,915 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.85ms. Allocated memory is still 86.0MB. Free memory was 48.8MB in the beginning and 46.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:18:37,915 INFO L158 Benchmark]: Boogie Preprocessor took 68.34ms. Allocated memory is still 86.0MB. Free memory was 46.1MB in the beginning and 44.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:18:37,915 INFO L158 Benchmark]: RCFGBuilder took 825.69ms. Allocated memory is still 86.0MB. Free memory was 44.0MB in the beginning and 52.6MB in the end (delta: -8.6MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2022-11-20 12:18:37,915 INFO L158 Benchmark]: TraceAbstraction took 57147.34ms. Allocated memory was 86.0MB in the beginning and 144.7MB in the end (delta: 58.7MB). Free memory was 51.8MB in the beginning and 36.7MB in the end (delta: 15.1MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. [2022-11-20 12:18:37,916 INFO L158 Benchmark]: Witness Printer took 87.38ms. Allocated memory is still 144.7MB. Free memory was 36.7MB in the beginning and 108.7MB in the end (delta: -72.0MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2022-11-20 12:18:37,917 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 86.0MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 797.60ms. Allocated memory is still 86.0MB. Free memory was 45.0MB in the beginning and 48.8MB in the end (delta: -3.8MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.85ms. Allocated memory is still 86.0MB. Free memory was 48.8MB in the beginning and 46.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.34ms. Allocated memory is still 86.0MB. Free memory was 46.1MB in the beginning and 44.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 825.69ms. Allocated memory is still 86.0MB. Free memory was 44.0MB in the beginning and 52.6MB in the end (delta: -8.6MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * TraceAbstraction took 57147.34ms. Allocated memory was 86.0MB in the beginning and 144.7MB in the end (delta: 58.7MB). Free memory was 51.8MB in the beginning and 36.7MB in the end (delta: 15.1MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. * Witness Printer took 87.38ms. Allocated memory is still 144.7MB. Free memory was 36.7MB in the beginning and 108.7MB in the end (delta: -72.0MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled * 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 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [ldv_global_msg_list={1:0}] [L764] CALL entry_point() [L758] struct ldv_kobject *kobj; [L759] CALL, EXPR ldv_kobject_create() [L740] struct ldv_kobject *kobj; VAL [ldv_global_msg_list={1:0}] [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) VAL [\old(size)=16, ldv_global_msg_list={1:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) VAL [ldv_global_msg_list={1:0}, ldv_malloc(sizeof(*kobj))={2:0}] [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) [L744] FCALL memset(kobj, 0, sizeof(*kobj)) [L745] CALL ldv_kobject_init(kobj) [L730] COND FALSE !(!kobj) [L733] CALL ldv_kobject_init_internal(kobj) [L723] COND FALSE !(!kobj) [L725] CALL ldv_kref_init(&kobj->kref) [L682] ((&kref->refcount)->counter) = (1) VAL [kref={2:12}, kref={2:12}, ldv_global_msg_list={1:0}] [L725] RET ldv_kref_init(&kobj->kref) [L726] CALL LDV_INIT_LIST_HEAD(&kobj->entry) VAL [ldv_global_msg_list={1:0}, list={2:4}] [L540] list->next = list VAL [ldv_global_msg_list={1:0}, list={2:4}, list={2:4}] [L541] list->prev = list VAL [ldv_global_msg_list={1:0}, list={2:4}, list={2:4}] [L726] RET LDV_INIT_LIST_HEAD(&kobj->entry) VAL [kobj={2:0}, kobj={2:0}, ldv_global_msg_list={1:0}] [L733] RET ldv_kobject_init_internal(kobj) [L745] RET ldv_kobject_init(kobj) [L746] return kobj; VAL [\result={2:0}, kobj={2:0}, ldv_global_msg_list={1:0}] [L759] RET, EXPR ldv_kobject_create() [L759] kobj = ldv_kobject_create() [L760] CALL ldv_kobject_put(kobj) VAL [ldv_global_msg_list={1:0}] [L711] COND TRUE \read(*kobj) [L712] CALL ldv_kref_put(&kobj->kref, ldv_kobject_release) [L690] CALL, EXPR ldv_kref_sub(kref, 1, release) [L674] CALL, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L665] int temp; VAL [\old(i)=1, i=1, ldv_global_msg_list={1:0}, v={2:12}, v={2:12}] [L666] EXPR v->counter VAL [\old(i)=1, i=1, ldv_global_msg_list={1:0}, v={2:12}, v={2:12}, v->counter=1] [L666] temp = v->counter [L667] temp -= i VAL [\old(i)=1, i=1, ldv_global_msg_list={1:0}, temp=0, v={2:12}, v={2:12}] [L668] v->counter = temp VAL [\old(i)=1, i=1, ldv_global_msg_list={1:0}, temp=0, v={2:12}, v={2:12}] [L669] return temp; VAL [\old(i)=1, \result=0, i=1, ldv_global_msg_list={1:0}, temp=0, v={2:12}, v={2:12}] [L674] RET, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L674] COND TRUE (ldv_atomic_sub_return(((int) count), (&kref->refcount)) == 0) [L675] CALL release(kref) [L706] const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); [L706] struct ldv_kobject *kobj = ({ const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) );}); [L707] CALL ldv_kobject_cleanup(kobj) [L699] EXPR kobj->name VAL [kobj={2:0}, kobj={2:0}, kobj->name={0:0}, ldv_global_msg_list={1:0}] [L699] char *name = kobj->name; [L700] free(kobj) VAL [kobj={2:0}, kobj={2:0}, ldv_global_msg_list={1:0}, name={0:0}] [L700] free(kobj) VAL [kobj={2:0}, kobj={2:0}, ldv_global_msg_list={1:0}, name={0:0}] [L700] free(kobj) [L701] COND FALSE !(\read(*name)) VAL [kobj={2:0}, kobj={2:0}, ldv_global_msg_list={1:0}, name={0:0}] [L707] RET ldv_kobject_cleanup(kobj) [L675] RET release(kref) [L676] return 1; VAL [\old(count)=1, \result=1, count=1, kref={2:12}, kref={2:12}, ldv_global_msg_list={1:0}, release={-1:0}, release={-1:0}] [L690] RET, EXPR ldv_kref_sub(kref, 1, release) [L690] return ldv_kref_sub(kref, 1, release); [L712] RET ldv_kref_put(&kobj->kref, ldv_kobject_release) [L760] RET ldv_kobject_put(kobj) VAL [kobj={2:0}, ldv_global_msg_list={1:0}] [L761] CALL ldv_kobject_put(kobj) VAL [ldv_global_msg_list={1:0}] [L711] COND TRUE \read(*kobj) [L712] CALL ldv_kref_put(&kobj->kref, ldv_kobject_release) [L690] CALL ldv_kref_sub(kref, 1, release) [L674] CALL ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L665] int temp; VAL [\old(i)=1, i=1, ldv_global_msg_list={1:0}, v={2:12}, v={2:12}] [L666] v->counter - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 21 error locations. Started 1 CEGAR loops. OverallTime: 57.0s, OverallIterations: 28, TraceHistogramMax: 16, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 20.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1995 SdHoareTripleChecker+Valid, 13.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1973 mSDsluCounter, 10327 SdHoareTripleChecker+Invalid, 12.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 626 IncrementalHoareTripleChecker+Unchecked, 8630 mSDsCounter, 227 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6584 IncrementalHoareTripleChecker+Invalid, 7437 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 227 mSolverCounterUnsat, 1697 mSDtfsCounter, 6584 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1384 GetRequests, 932 SyntacticMatches, 16 SemanticMatches, 436 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 3619 ImplicationChecksByTransitivity, 19.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=23, InterpolantAutomatonStates: 320, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 27 MinimizatonAttempts, 130 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 4.3s SatisfiabilityAnalysisTime, 21.7s InterpolantComputationTime, 1152 NumberOfCodeBlocks, 1122 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 1177 ConstructedInterpolants, 88 QuantifiedInterpolants, 8306 SizeOfPredicates, 425 NumberOfNonLiveVariables, 7083 ConjunctsInSsa, 870 ConjunctsInUnsatCore, 33 InterpolantComputations, 21 PerfectInterpolantSequences, 1991/2673 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-20 12:18:37,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea5139a7-101d-4af8-9138-e4609ab0b39e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)