./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8 --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 cac2372de612a50e6cea0e2672ab51101a6ffa3bb2603a06b5c5aa59090db116 --- 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-2329fc7 [2022-12-13 19:36:32,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:36:32,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:36:32,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:36:32,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:36:32,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:36:32,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:36:32,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:36:32,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:36:32,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:36:32,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:36:32,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:36:32,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:36:32,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:36:32,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:36:32,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:36:32,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:36:32,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:36:32,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:36:32,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:36:32,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:36:32,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:36:32,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:36:32,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:36:32,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:36:32,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:36:32,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:36:32,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:36:32,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:36:32,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:36:32,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:36:32,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:36:32,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:36:32,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:36:32,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:36:32,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:36:32,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:36:32,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:36:32,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:36:32,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:36:32,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:36:32,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 19:36:32,086 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:36:32,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:36:32,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:36:32,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:36:32,087 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:36:32,087 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:36:32,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:36:32,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:36:32,088 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:36:32,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:36:32,089 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:36:32,089 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:36:32,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:36:32,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:36:32,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:36:32,089 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 19:36:32,089 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 19:36:32,089 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 19:36:32,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:36:32,090 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 19:36:32,090 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:36:32,090 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:36:32,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:36:32,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:36:32,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:36:32,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:36:32,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:36:32,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:36:32,091 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:36:32,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:36:32,091 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:36:32,091 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:36:32,091 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:36:32,091 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:36:32,091 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cac2372de612a50e6cea0e2672ab51101a6ffa3bb2603a06b5c5aa59090db116 [2022-12-13 19:36:32,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:36:32,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:36:32,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:36:32,297 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:36:32,297 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:36:32,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i [2022-12-13 19:36:34,842 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:36:35,031 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:36:35,032 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i [2022-12-13 19:36:35,043 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/data/9f2d3bf09/da397f435eda452db76e7c06c3620137/FLAG67b21c620 [2022-12-13 19:36:35,402 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/data/9f2d3bf09/da397f435eda452db76e7c06c3620137 [2022-12-13 19:36:35,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:36:35,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:36:35,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:36:35,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:36:35,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:36:35,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:36:35" (1/1) ... [2022-12-13 19:36:35,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@96e0254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:36:35, skipping insertion in model container [2022-12-13 19:36:35,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:36:35" (1/1) ... [2022-12-13 19:36:35,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:36:35,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:36:35,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:36:35,713 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) [2022-12-13 19:36:35,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@65f9f042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:36:35, skipping insertion in model container [2022-12-13 19:36:35,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:36:35,714 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-13 19:36:35,715 INFO L158 Benchmark]: Toolchain (without parser) took 310.39ms. Allocated memory is still 127.9MB. Free memory was 91.1MB in the beginning and 77.5MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 19:36:35,716 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:36:35,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.77ms. Allocated memory is still 127.9MB. Free memory was 90.7MB in the beginning and 77.5MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 19:36:35,717 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.77ms. Allocated memory is still 127.9MB. Free memory was 90.7MB in the beginning and 77.5MB in the end (delta: 13.2MB). 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8 --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 cac2372de612a50e6cea0e2672ab51101a6ffa3bb2603a06b5c5aa59090db116 --- 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-2329fc7 [2022-12-13 19:36:37,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:36:37,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:36:37,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:36:37,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:36:37,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:36:37,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:36:37,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:36:37,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:36:37,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:36:37,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:36:37,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:36:37,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:36:37,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:36:37,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:36:37,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:36:37,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:36:37,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:36:37,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:36:37,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:36:37,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:36:37,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:36:37,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:36:37,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:36:37,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:36:37,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:36:37,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:36:37,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:36:37,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:36:37,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:36:37,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:36:37,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:36:37,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:36:37,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:36:37,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:36:37,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:36:37,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:36:37,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:36:37,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:36:37,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:36:37,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:36:37,281 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 19:36:37,311 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:36:37,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:36:37,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:36:37,312 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:36:37,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:36:37,312 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:36:37,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:36:37,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:36:37,313 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:36:37,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:36:37,314 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:36:37,314 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:36:37,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:36:37,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:36:37,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:36:37,315 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 19:36:37,315 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 19:36:37,315 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 19:36:37,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:36:37,315 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 19:36:37,315 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 19:36:37,315 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 19:36:37,316 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:36:37,316 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:36:37,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:36:37,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:36:37,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:36:37,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:36:37,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:36:37,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:36:37,317 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 19:36:37,317 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 19:36:37,317 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:36:37,317 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:36:37,317 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:36:37,317 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 19:36:37,317 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:36:37,317 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cac2372de612a50e6cea0e2672ab51101a6ffa3bb2603a06b5c5aa59090db116 [2022-12-13 19:36:37,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:36:37,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:36:37,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:36:37,547 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:36:37,547 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:36:37,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i [2022-12-13 19:36:40,212 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:36:40,427 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:36:40,427 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i [2022-12-13 19:36:40,437 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/data/80853d91e/36a3b9dadd534bbba8ecd063c2e25b50/FLAG586e33545 [2022-12-13 19:36:40,447 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/data/80853d91e/36a3b9dadd534bbba8ecd063c2e25b50 [2022-12-13 19:36:40,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:36:40,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:36:40,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:36:40,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:36:40,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:36:40,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:36:40" (1/1) ... [2022-12-13 19:36:40,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d3d528e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:36:40, skipping insertion in model container [2022-12-13 19:36:40,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:36:40" (1/1) ... [2022-12-13 19:36:40,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:36:40,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:36:40,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:36:40,784 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-13 19:36:40,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:36:40,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:36:40,842 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:36:40,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:36:40,933 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:36:40,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:36:40 WrapperNode [2022-12-13 19:36:40,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:36:40,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:36:40,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:36:40,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:36:40,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:36:40" (1/1) ... [2022-12-13 19:36:40,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:36:40" (1/1) ... [2022-12-13 19:36:40,971 INFO L138 Inliner]: procedures = 167, calls = 73, calls flagged for inlining = 25, calls inlined = 19, statements flattened = 124 [2022-12-13 19:36:40,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:36:40,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:36:40,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:36:40,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:36:40,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:36:40" (1/1) ... [2022-12-13 19:36:40,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:36:40" (1/1) ... [2022-12-13 19:36:40,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:36:40" (1/1) ... [2022-12-13 19:36:40,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:36:40" (1/1) ... [2022-12-13 19:36:40,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:36:40" (1/1) ... [2022-12-13 19:36:40,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:36:40" (1/1) ... [2022-12-13 19:36:40,993 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:36:40" (1/1) ... [2022-12-13 19:36:40,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:36:40" (1/1) ... [2022-12-13 19:36:40,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:36:40,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:36:40,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:36:40,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:36:40,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:36:40" (1/1) ... [2022-12-13 19:36:41,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:36:41,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:36:41,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:36:41,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:36:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 19:36:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2022-12-13 19:36:41,059 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2022-12-13 19:36:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-13 19:36:41,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-13 19:36:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2022-12-13 19:36:41,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2022-12-13 19:36:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 19:36:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:36:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 19:36:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 19:36:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 19:36:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:36:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 19:36:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:36:41,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:36:41,176 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:36:41,178 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:36:41,518 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:36:41,523 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:36:41,523 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:36:41,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:36:41 BoogieIcfgContainer [2022-12-13 19:36:41,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:36:41,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:36:41,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:36:41,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:36:41,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:36:40" (1/3) ... [2022-12-13 19:36:41,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546b9650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:36:41, skipping insertion in model container [2022-12-13 19:36:41,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:36:40" (2/3) ... [2022-12-13 19:36:41,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546b9650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:36:41, skipping insertion in model container [2022-12-13 19:36:41,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:36:41" (3/3) ... [2022-12-13 19:36:41,531 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test22_3-1.i [2022-12-13 19:36:41,544 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:36:41,544 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2022-12-13 19:36:41,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:36:41,587 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=PETRI_NET, 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;@710da0c4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:36:41,587 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-12-13 19:36:41,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 59 states have (on average 1.576271186440678) internal successors, (93), 85 states have internal predecessors, (93), 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) [2022-12-13 19:36:41,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 19:36:41,596 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:41,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:36:41,597 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:41,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:41,601 INFO L85 PathProgramCache]: Analyzing trace with hash 886333963, now seen corresponding path program 1 times [2022-12-13 19:36:41,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:41,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977433680] [2022-12-13 19:36:41,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:41,610 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 [2022-12-13 19:36:41,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:41,611 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:41,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:41,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 19:36:41,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:41,735 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 [2022-12-13 19:36:41,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:36:41,776 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:41,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:41,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977433680] [2022-12-13 19:36:41,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977433680] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:41,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:41,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:36:41,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102128374] [2022-12-13 19:36:41,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:41,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:36:41,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:41,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:36:41,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:36:41,817 INFO L87 Difference]: Start difference. First operand has 92 states, 59 states have (on average 1.576271186440678) internal successors, (93), 85 states have internal predecessors, (93), 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) [2022-12-13 19:36:42,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:42,198 INFO L93 Difference]: Finished difference Result 158 states and 178 transitions. [2022-12-13 19:36:42,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:36:42,200 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 [2022-12-13 19:36:42,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:42,208 INFO L225 Difference]: With dead ends: 158 [2022-12-13 19:36:42,208 INFO L226 Difference]: Without dead ends: 156 [2022-12-13 19:36:42,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:36:42,213 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 97 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:42,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 387 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 19:36:42,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-12-13 19:36:42,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 95. [2022-12-13 19:36:42,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 62 states have (on average 1.5483870967741935) internal successors, (96), 87 states have internal predecessors, (96), 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) [2022-12-13 19:36:42,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 105 transitions. [2022-12-13 19:36:42,250 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 105 transitions. Word has length 10 [2022-12-13 19:36:42,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:42,250 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 105 transitions. [2022-12-13 19:36:42,250 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) [2022-12-13 19:36:42,256 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 105 transitions. [2022-12-13 19:36:42,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 19:36:42,256 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:42,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:36:42,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:42,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:42,459 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:42,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:42,461 INFO L85 PathProgramCache]: Analyzing trace with hash 914963114, now seen corresponding path program 1 times [2022-12-13 19:36:42,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:42,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893365367] [2022-12-13 19:36:42,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:42,466 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 [2022-12-13 19:36:42,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:42,470 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:42,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:42,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 19:36:42,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:42,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:36:42,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:42,658 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:42,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893365367] [2022-12-13 19:36:42,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893365367] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:42,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:42,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:36:42,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939532993] [2022-12-13 19:36:42,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:42,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:36:42,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:42,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:36:42,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:36:42,661 INFO L87 Difference]: Start difference. First operand 95 states and 105 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) [2022-12-13 19:36:42,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:42,689 INFO L93 Difference]: Finished difference Result 114 states and 125 transitions. [2022-12-13 19:36:42,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:36:42,690 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 [2022-12-13 19:36:42,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:42,691 INFO L225 Difference]: With dead ends: 114 [2022-12-13 19:36:42,691 INFO L226 Difference]: Without dead ends: 114 [2022-12-13 19:36:42,691 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 [2022-12-13 19:36:42,692 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 19 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 393 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 [2022-12-13 19:36:42,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 393 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:36:42,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-12-13 19:36:42,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 93. [2022-12-13 19:36:42,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 61 states have (on average 1.5245901639344261) internal successors, (93), 85 states have internal predecessors, (93), 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) [2022-12-13 19:36:42,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 102 transitions. [2022-12-13 19:36:42,700 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 102 transitions. Word has length 10 [2022-12-13 19:36:42,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:42,700 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 102 transitions. [2022-12-13 19:36:42,700 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) [2022-12-13 19:36:42,700 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 102 transitions. [2022-12-13 19:36:42,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 19:36:42,701 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:42,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:36:42,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:42,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:42,903 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:42,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:42,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1706549126, now seen corresponding path program 1 times [2022-12-13 19:36:42,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:42,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915400807] [2022-12-13 19:36:42,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:42,907 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 [2022-12-13 19:36:42,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:42,910 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:42,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:43,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 19:36:43,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:43,058 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 [2022-12-13 19:36:43,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:36:43,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:43,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:43,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915400807] [2022-12-13 19:36:43,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [915400807] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:43,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:43,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 19:36:43,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504072195] [2022-12-13 19:36:43,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:43,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:36:43,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:43,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:36:43,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:36:43,145 INFO L87 Difference]: Start difference. First operand 93 states and 102 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) [2022-12-13 19:36:43,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:43,528 INFO L93 Difference]: Finished difference Result 134 states and 147 transitions. [2022-12-13 19:36:43,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:36:43,529 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 [2022-12-13 19:36:43,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:43,530 INFO L225 Difference]: With dead ends: 134 [2022-12-13 19:36:43,530 INFO L226 Difference]: Without dead ends: 134 [2022-12-13 19:36:43,530 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 [2022-12-13 19:36:43,531 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 73 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:43,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 469 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 19:36:43,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-12-13 19:36:43,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 92. [2022-12-13 19:36:43,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 61 states have (on average 1.5081967213114753) internal successors, (92), 84 states have internal predecessors, (92), 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) [2022-12-13 19:36:43,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2022-12-13 19:36:43,536 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 11 [2022-12-13 19:36:43,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:43,536 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2022-12-13 19:36:43,536 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) [2022-12-13 19:36:43,536 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2022-12-13 19:36:43,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 19:36:43,537 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:43,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:36:43,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:43,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:43,739 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:43,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:43,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1363388625, now seen corresponding path program 1 times [2022-12-13 19:36:43,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:43,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1382777420] [2022-12-13 19:36:43,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:43,742 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 [2022-12-13 19:36:43,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:43,745 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:43,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:43,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 19:36:43,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:43,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:36:43,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:43,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:43,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1382777420] [2022-12-13 19:36:43,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1382777420] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:43,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:43,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:36:43,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026216653] [2022-12-13 19:36:43,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:43,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:36:43,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:43,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:36:43,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:36:43,875 INFO L87 Difference]: Start difference. First operand 92 states and 101 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (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) [2022-12-13 19:36:43,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:43,895 INFO L93 Difference]: Finished difference Result 113 states and 123 transitions. [2022-12-13 19:36:43,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:36:43,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (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 12 [2022-12-13 19:36:43,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:43,897 INFO L225 Difference]: With dead ends: 113 [2022-12-13 19:36:43,897 INFO L226 Difference]: Without dead ends: 113 [2022-12-13 19:36:43,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:36:43,898 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 35 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 423 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 [2022-12-13 19:36:43,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 423 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:36:43,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-12-13 19:36:43,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 92. [2022-12-13 19:36:43,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 61 states have (on average 1.4918032786885247) internal successors, (91), 84 states have internal predecessors, (91), 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) [2022-12-13 19:36:43,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 100 transitions. [2022-12-13 19:36:43,906 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 100 transitions. Word has length 12 [2022-12-13 19:36:43,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:43,906 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 100 transitions. [2022-12-13 19:36:43,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (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) [2022-12-13 19:36:43,906 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 100 transitions. [2022-12-13 19:36:43,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 19:36:43,907 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:43,907 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:36:43,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:44,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:44,109 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:44,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:44,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1188768336, now seen corresponding path program 1 times [2022-12-13 19:36:44,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:44,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228378115] [2022-12-13 19:36:44,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:44,112 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 [2022-12-13 19:36:44,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:44,115 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:44,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:44,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 19:36:44,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:44,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:36:44,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:44,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:44,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1228378115] [2022-12-13 19:36:44,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1228378115] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:44,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:44,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:36:44,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137257674] [2022-12-13 19:36:44,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:44,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:36:44,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:44,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:36:44,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:36:44,225 INFO L87 Difference]: Start difference. First operand 92 states and 100 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-12-13 19:36:44,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:44,256 INFO L93 Difference]: Finished difference Result 112 states and 122 transitions. [2022-12-13 19:36:44,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:36:44,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 12 [2022-12-13 19:36:44,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:44,257 INFO L225 Difference]: With dead ends: 112 [2022-12-13 19:36:44,258 INFO L226 Difference]: Without dead ends: 112 [2022-12-13 19:36:44,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:36:44,259 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 21 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:44,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 288 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:36:44,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-12-13 19:36:44,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 94. [2022-12-13 19:36:44,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 63 states have (on average 1.4761904761904763) internal successors, (93), 86 states have internal predecessors, (93), 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) [2022-12-13 19:36:44,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 102 transitions. [2022-12-13 19:36:44,266 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 102 transitions. Word has length 12 [2022-12-13 19:36:44,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:44,267 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 102 transitions. [2022-12-13 19:36:44,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-12-13 19:36:44,267 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 102 transitions. [2022-12-13 19:36:44,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 19:36:44,268 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:44,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:36:44,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:44,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:44,468 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:44,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:44,469 INFO L85 PathProgramCache]: Analyzing trace with hash 86428473, now seen corresponding path program 1 times [2022-12-13 19:36:44,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:44,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040433345] [2022-12-13 19:36:44,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:44,469 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 [2022-12-13 19:36:44,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:44,470 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:44,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:44,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:36:44,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:44,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:36:44,535 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:44,535 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:44,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040433345] [2022-12-13 19:36:44,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1040433345] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:44,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:44,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:36:44,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385180690] [2022-12-13 19:36:44,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:44,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:36:44,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:44,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:36:44,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:36:44,536 INFO L87 Difference]: Start difference. First operand 94 states and 102 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) [2022-12-13 19:36:44,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:44,561 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2022-12-13 19:36:44,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:36:44,562 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 [2022-12-13 19:36:44,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:44,563 INFO L225 Difference]: With dead ends: 104 [2022-12-13 19:36:44,563 INFO L226 Difference]: Without dead ends: 104 [2022-12-13 19:36:44,563 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 [2022-12-13 19:36:44,564 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 33 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 208 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 [2022-12-13 19:36:44,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 208 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:36:44,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-12-13 19:36:44,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 95. [2022-12-13 19:36:44,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 64 states have (on average 1.46875) internal successors, (94), 87 states have internal predecessors, (94), 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) [2022-12-13 19:36:44,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 103 transitions. [2022-12-13 19:36:44,568 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 103 transitions. Word has length 16 [2022-12-13 19:36:44,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:44,569 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 103 transitions. [2022-12-13 19:36:44,569 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) [2022-12-13 19:36:44,569 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 103 transitions. [2022-12-13 19:36:44,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 19:36:44,569 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:44,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:36:44,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:44,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:44,771 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:44,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:44,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1674943760, now seen corresponding path program 1 times [2022-12-13 19:36:44,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:44,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548315046] [2022-12-13 19:36:44,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:44,774 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 [2022-12-13 19:36:44,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:44,777 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:44,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:44,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 19:36:44,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:44,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:36:44,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:36:44,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:36:44,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:44,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548315046] [2022-12-13 19:36:44,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [548315046] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:36:44,951 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:36:44,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-12-13 19:36:44,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077531557] [2022-12-13 19:36:44,951 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:36:44,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 19:36:44,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:44,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 19:36:44,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 19:36:44,952 INFO L87 Difference]: Start difference. First operand 95 states and 103 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) [2022-12-13 19:36:45,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:45,027 INFO L93 Difference]: Finished difference Result 107 states and 116 transitions. [2022-12-13 19:36:45,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:36:45,027 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 [2022-12-13 19:36:45,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:45,028 INFO L225 Difference]: With dead ends: 107 [2022-12-13 19:36:45,028 INFO L226 Difference]: Without dead ends: 107 [2022-12-13 19:36:45,028 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 [2022-12-13 19:36:45,029 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 70 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:45,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 381 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:36:45,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-12-13 19:36:45,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 98. [2022-12-13 19:36:45,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 67 states have (on average 1.4477611940298507) internal successors, (97), 90 states have internal predecessors, (97), 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) [2022-12-13 19:36:45,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2022-12-13 19:36:45,034 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 17 [2022-12-13 19:36:45,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:45,035 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2022-12-13 19:36:45,035 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) [2022-12-13 19:36:45,035 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2022-12-13 19:36:45,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-13 19:36:45,036 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:45,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:36:45,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:45,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:45,237 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:45,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:45,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1276371002, now seen corresponding path program 1 times [2022-12-13 19:36:45,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:45,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241817965] [2022-12-13 19:36:45,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:45,240 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 [2022-12-13 19:36:45,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:45,243 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:45,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:45,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 19:36:45,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:45,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:36:45,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:45,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:45,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241817965] [2022-12-13 19:36:45,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241817965] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:45,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:45,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 19:36:45,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581634613] [2022-12-13 19:36:45,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:45,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:36:45,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:45,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:36:45,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:36:45,461 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2022-12-13 19:36:45,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:45,532 INFO L93 Difference]: Finished difference Result 113 states and 122 transitions. [2022-12-13 19:36:45,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 19:36:45,532 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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 18 [2022-12-13 19:36:45,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:45,533 INFO L225 Difference]: With dead ends: 113 [2022-12-13 19:36:45,533 INFO L226 Difference]: Without dead ends: 113 [2022-12-13 19:36:45,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 19:36:45,534 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 21 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:45,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 545 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:36:45,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-12-13 19:36:45,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 108. [2022-12-13 19:36:45,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 74 states have (on average 1.4054054054054055) internal successors, (104), 98 states have internal predecessors, (104), 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) [2022-12-13 19:36:45,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 117 transitions. [2022-12-13 19:36:45,540 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 117 transitions. Word has length 18 [2022-12-13 19:36:45,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:45,540 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 117 transitions. [2022-12-13 19:36:45,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2022-12-13 19:36:45,540 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 117 transitions. [2022-12-13 19:36:45,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 19:36:45,541 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:45,541 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:36:45,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:45,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:45,742 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:45,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:45,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1965719801, now seen corresponding path program 2 times [2022-12-13 19:36:45,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:45,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255360825] [2022-12-13 19:36:45,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:36:45,744 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 [2022-12-13 19:36:45,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:45,745 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:45,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:45,867 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 19:36:45,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:36:45,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 19:36:45,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:45,875 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 [2022-12-13 19:36:45,939 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 19:36:45,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:45,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:45,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255360825] [2022-12-13 19:36:45,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255360825] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:45,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:45,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 19:36:45,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89175136] [2022-12-13 19:36:45,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:45,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 19:36:45,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:45,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 19:36:45,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 19:36:45,941 INFO L87 Difference]: Start difference. First operand 108 states and 117 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) [2022-12-13 19:36:46,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:46,401 INFO L93 Difference]: Finished difference Result 142 states and 155 transitions. [2022-12-13 19:36:46,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 19:36:46,402 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 [2022-12-13 19:36:46,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:46,403 INFO L225 Difference]: With dead ends: 142 [2022-12-13 19:36:46,403 INFO L226 Difference]: Without dead ends: 142 [2022-12-13 19:36:46,403 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 [2022-12-13 19:36:46,404 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 95 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:46,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 537 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 19:36:46,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-12-13 19:36:46,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 107. [2022-12-13 19:36:46,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 97 states have internal predecessors, (103), 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) [2022-12-13 19:36:46,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 116 transitions. [2022-12-13 19:36:46,409 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 116 transitions. Word has length 20 [2022-12-13 19:36:46,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:46,409 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 116 transitions. [2022-12-13 19:36:46,409 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) [2022-12-13 19:36:46,409 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 116 transitions. [2022-12-13 19:36:46,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 19:36:46,410 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:46,410 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:36:46,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:46,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:46,612 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:46,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:46,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1965719802, now seen corresponding path program 1 times [2022-12-13 19:36:46,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:46,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2124762412] [2022-12-13 19:36:46,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:46,628 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 [2022-12-13 19:36:46,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:46,631 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:46,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:46,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 19:36:46,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:46,769 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:36:46,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:36:46,933 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:36:46,933 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:46,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2124762412] [2022-12-13 19:36:46,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2124762412] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:36:46,934 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:36:46,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-12-13 19:36:46,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556364906] [2022-12-13 19:36:46,934 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:36:46,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 19:36:46,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:46,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 19:36:46,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-12-13 19:36:46,935 INFO L87 Difference]: Start difference. First operand 107 states and 116 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) [2022-12-13 19:36:47,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:47,173 INFO L93 Difference]: Finished difference Result 116 states and 124 transitions. [2022-12-13 19:36:47,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 19:36:47,173 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 [2022-12-13 19:36:47,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:47,174 INFO L225 Difference]: With dead ends: 116 [2022-12-13 19:36:47,174 INFO L226 Difference]: Without dead ends: 116 [2022-12-13 19:36:47,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2022-12-13 19:36:47,175 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 74 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:47,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 782 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:36:47,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-12-13 19:36:47,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 113. [2022-12-13 19:36:47,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 80 states have (on average 1.3625) internal successors, (109), 103 states have internal predecessors, (109), 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) [2022-12-13 19:36:47,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 122 transitions. [2022-12-13 19:36:47,177 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 122 transitions. Word has length 20 [2022-12-13 19:36:47,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:47,178 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 122 transitions. [2022-12-13 19:36:47,178 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) [2022-12-13 19:36:47,178 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 122 transitions. [2022-12-13 19:36:47,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-13 19:36:47,178 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:47,178 INFO L195 NwaCegarLoop]: trace 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] [2022-12-13 19:36:47,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:47,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:47,379 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:47,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:47,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1184735654, now seen corresponding path program 1 times [2022-12-13 19:36:47,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:47,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [890707573] [2022-12-13 19:36:47,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:47,380 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 [2022-12-13 19:36:47,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:47,381 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:47,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:47,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 19:36:47,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:47,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 19:36:47,466 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:47,466 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:47,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [890707573] [2022-12-13 19:36:47,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [890707573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:47,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:47,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:36:47,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196175125] [2022-12-13 19:36:47,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:47,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:36:47,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:47,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:36:47,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:36:47,467 INFO L87 Difference]: Start difference. First operand 113 states and 122 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-12-13 19:36:47,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:47,577 INFO L93 Difference]: Finished difference Result 119 states and 128 transitions. [2022-12-13 19:36:47,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:36:47,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 27 [2022-12-13 19:36:47,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:47,578 INFO L225 Difference]: With dead ends: 119 [2022-12-13 19:36:47,578 INFO L226 Difference]: Without dead ends: 101 [2022-12-13 19:36:47,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:36:47,579 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 31 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:47,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 184 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:36:47,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-12-13 19:36:47,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2022-12-13 19:36:47,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 68 states have (on average 1.411764705882353) internal successors, (96), 90 states have internal predecessors, (96), 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) [2022-12-13 19:36:47,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 104 transitions. [2022-12-13 19:36:47,583 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 104 transitions. Word has length 27 [2022-12-13 19:36:47,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:47,583 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 104 transitions. [2022-12-13 19:36:47,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2022-12-13 19:36:47,583 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 104 transitions. [2022-12-13 19:36:47,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-13 19:36:47,584 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:47,584 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:36:47,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:47,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:47,785 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:47,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:47,787 INFO L85 PathProgramCache]: Analyzing trace with hash -103060070, now seen corresponding path program 2 times [2022-12-13 19:36:47,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:47,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734763167] [2022-12-13 19:36:47,788 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:36:47,789 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 [2022-12-13 19:36:47,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:47,792 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:47,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:47,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 19:36:47,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:36:47,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 19:36:47,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:47,938 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 [2022-12-13 19:36:48,097 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 19:36:48,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:48,097 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:48,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734763167] [2022-12-13 19:36:48,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1734763167] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:48,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:48,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 19:36:48,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417479232] [2022-12-13 19:36:48,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:48,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 19:36:48,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:48,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 19:36:48,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 19:36:48,099 INFO L87 Difference]: Start difference. First operand 97 states and 104 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) [2022-12-13 19:36:48,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:48,666 INFO L93 Difference]: Finished difference Result 141 states and 152 transitions. [2022-12-13 19:36:48,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 19:36:48,666 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 [2022-12-13 19:36:48,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:48,667 INFO L225 Difference]: With dead ends: 141 [2022-12-13 19:36:48,667 INFO L226 Difference]: Without dead ends: 141 [2022-12-13 19:36:48,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-12-13 19:36:48,668 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 105 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:48,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 620 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 19:36:48,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-12-13 19:36:48,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 96. [2022-12-13 19:36:48,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 89 states have internal predecessors, (95), 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) [2022-12-13 19:36:48,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 103 transitions. [2022-12-13 19:36:48,672 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 103 transitions. Word has length 26 [2022-12-13 19:36:48,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:48,672 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 103 transitions. [2022-12-13 19:36:48,672 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) [2022-12-13 19:36:48,673 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 103 transitions. [2022-12-13 19:36:48,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-13 19:36:48,673 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:48,673 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:36:48,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:48,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:48,874 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:48,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:48,876 INFO L85 PathProgramCache]: Analyzing trace with hash -257987495, now seen corresponding path program 1 times [2022-12-13 19:36:48,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:48,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181493479] [2022-12-13 19:36:48,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:48,878 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 [2022-12-13 19:36:48,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:48,880 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:48,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:49,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 19:36:49,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:49,215 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:36:49,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:36:49,704 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:36:49,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:49,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181493479] [2022-12-13 19:36:49,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181493479] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:36:49,704 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:36:49,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2022-12-13 19:36:49,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720827086] [2022-12-13 19:36:49,704 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:36:49,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-13 19:36:49,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:49,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-13 19:36:49,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2022-12-13 19:36:49,706 INFO L87 Difference]: Start difference. First operand 96 states and 103 transitions. Second operand has 26 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 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) [2022-12-13 19:36:50,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:50,178 INFO L93 Difference]: Finished difference Result 102 states and 109 transitions. [2022-12-13 19:36:50,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 19:36:50,179 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 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 28 [2022-12-13 19:36:50,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:50,179 INFO L225 Difference]: With dead ends: 102 [2022-12-13 19:36:50,180 INFO L226 Difference]: Without dead ends: 102 [2022-12-13 19:36:50,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=278, Invalid=652, Unknown=0, NotChecked=0, Total=930 [2022-12-13 19:36:50,181 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 36 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:50,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1236 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 19:36:50,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-12-13 19:36:50,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-12-13 19:36:50,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 74 states have (on average 1.364864864864865) internal successors, (101), 95 states have internal predecessors, (101), 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) [2022-12-13 19:36:50,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 109 transitions. [2022-12-13 19:36:50,184 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 109 transitions. Word has length 28 [2022-12-13 19:36:50,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:50,184 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 109 transitions. [2022-12-13 19:36:50,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 26 states have internal predecessors, (40), 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) [2022-12-13 19:36:50,185 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 109 transitions. [2022-12-13 19:36:50,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-13 19:36:50,185 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:50,185 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:36:50,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:50,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:50,387 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:50,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:50,388 INFO L85 PathProgramCache]: Analyzing trace with hash -2039891719, now seen corresponding path program 2 times [2022-12-13 19:36:50,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:50,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [881581715] [2022-12-13 19:36:50,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:36:50,390 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 [2022-12-13 19:36:50,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:50,394 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:50,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:50,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 19:36:50,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:36:50,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 19:36:50,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:50,514 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 19:36:50,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:50,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:50,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [881581715] [2022-12-13 19:36:50,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [881581715] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:50,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:50,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 19:36:50,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620559282] [2022-12-13 19:36:50,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:50,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:36:50,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:50,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:36:50,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:36:50,516 INFO L87 Difference]: Start difference. First operand 102 states and 109 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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) [2022-12-13 19:36:50,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:50,539 INFO L93 Difference]: Finished difference Result 102 states and 108 transitions. [2022-12-13 19:36:50,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:36:50,539 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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 34 [2022-12-13 19:36:50,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:50,540 INFO L225 Difference]: With dead ends: 102 [2022-12-13 19:36:50,540 INFO L226 Difference]: Without dead ends: 102 [2022-12-13 19:36:50,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:36:50,541 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 53 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 371 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 [2022-12-13 19:36:50,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 371 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:36:50,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-12-13 19:36:50,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-12-13 19:36:50,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 74 states have (on average 1.3513513513513513) internal successors, (100), 95 states have internal predecessors, (100), 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) [2022-12-13 19:36:50,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 108 transitions. [2022-12-13 19:36:50,544 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 108 transitions. Word has length 34 [2022-12-13 19:36:50,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:50,544 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 108 transitions. [2022-12-13 19:36:50,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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) [2022-12-13 19:36:50,544 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 108 transitions. [2022-12-13 19:36:50,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-13 19:36:50,545 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:50,545 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] [2022-12-13 19:36:50,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:50,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:50,747 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:50,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:50,748 INFO L85 PathProgramCache]: Analyzing trace with hash -382086172, now seen corresponding path program 1 times [2022-12-13 19:36:50,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:50,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100955951] [2022-12-13 19:36:50,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:50,750 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 [2022-12-13 19:36:50,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:50,753 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:50,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:50,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 19:36:50,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:50,967 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 [2022-12-13 19:36:51,057 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 19:36:51,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:51,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:51,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100955951] [2022-12-13 19:36:51,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100955951] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:51,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:51,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 19:36:51,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492604951] [2022-12-13 19:36:51,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:51,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 19:36:51,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:51,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 19:36:51,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 19:36:51,059 INFO L87 Difference]: Start difference. First operand 102 states and 108 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) [2022-12-13 19:36:51,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:51,348 INFO L93 Difference]: Finished difference Result 100 states and 106 transitions. [2022-12-13 19:36:51,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 19:36:51,348 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 [2022-12-13 19:36:51,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:51,349 INFO L225 Difference]: With dead ends: 100 [2022-12-13 19:36:51,349 INFO L226 Difference]: Without dead ends: 100 [2022-12-13 19:36:51,349 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 [2022-12-13 19:36:51,350 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 77 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:51,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 391 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 19:36:51,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-12-13 19:36:51,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2022-12-13 19:36:51,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 74 states have (on average 1.3243243243243243) internal successors, (98), 93 states have internal predecessors, (98), 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) [2022-12-13 19:36:51,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 106 transitions. [2022-12-13 19:36:51,354 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 106 transitions. Word has length 36 [2022-12-13 19:36:51,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:51,354 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 106 transitions. [2022-12-13 19:36:51,354 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) [2022-12-13 19:36:51,355 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 106 transitions. [2022-12-13 19:36:51,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-13 19:36:51,355 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:51,355 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] [2022-12-13 19:36:51,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:51,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:51,557 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:51,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:51,558 INFO L85 PathProgramCache]: Analyzing trace with hash -382086171, now seen corresponding path program 1 times [2022-12-13 19:36:51,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:51,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338852616] [2022-12-13 19:36:51,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:51,560 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 [2022-12-13 19:36:51,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:51,563 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:51,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:51,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 19:36:51,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:51,785 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 [2022-12-13 19:36:51,989 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 19:36:51,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:51,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:51,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338852616] [2022-12-13 19:36:51,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338852616] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:51,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:51,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 19:36:51,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772413491] [2022-12-13 19:36:51,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:51,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 19:36:51,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:51,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 19:36:51,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 19:36:51,991 INFO L87 Difference]: Start difference. First operand 100 states and 106 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) [2022-12-13 19:36:52,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:52,343 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2022-12-13 19:36:52,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 19:36:52,343 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 [2022-12-13 19:36:52,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:52,344 INFO L225 Difference]: With dead ends: 98 [2022-12-13 19:36:52,344 INFO L226 Difference]: Without dead ends: 98 [2022-12-13 19:36:52,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-12-13 19:36:52,345 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 84 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:52,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 472 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 19:36:52,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-12-13 19:36:52,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-12-13 19:36:52,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 74 states have (on average 1.2972972972972974) internal successors, (96), 91 states have internal predecessors, (96), 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) [2022-12-13 19:36:52,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 104 transitions. [2022-12-13 19:36:52,349 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 104 transitions. Word has length 36 [2022-12-13 19:36:52,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:52,350 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 104 transitions. [2022-12-13 19:36:52,350 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) [2022-12-13 19:36:52,350 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 104 transitions. [2022-12-13 19:36:52,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-13 19:36:52,350 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:52,350 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] [2022-12-13 19:36:52,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:52,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:52,552 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:52,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:52,553 INFO L85 PathProgramCache]: Analyzing trace with hash -432796251, now seen corresponding path program 1 times [2022-12-13 19:36:52,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:52,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425370516] [2022-12-13 19:36:52,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:52,555 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 [2022-12-13 19:36:52,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:52,557 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:52,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:52,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 19:36:52,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:52,753 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 19:36:52,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:52,753 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:52,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425370516] [2022-12-13 19:36:52,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425370516] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:52,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:52,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 19:36:52,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794607524] [2022-12-13 19:36:52,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:52,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:36:52,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:52,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:36:52,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:36:52,755 INFO L87 Difference]: Start difference. First operand 98 states and 104 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) [2022-12-13 19:36:52,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:52,793 INFO L93 Difference]: Finished difference Result 98 states and 103 transitions. [2022-12-13 19:36:52,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:36:52,793 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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 36 [2022-12-13 19:36:52,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:52,794 INFO L225 Difference]: With dead ends: 98 [2022-12-13 19:36:52,794 INFO L226 Difference]: Without dead ends: 98 [2022-12-13 19:36:52,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-13 19:36:52,795 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 75 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 396 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 [2022-12-13 19:36:52,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 396 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:36:52,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-12-13 19:36:52,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-12-13 19:36:52,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 74 states have (on average 1.2837837837837838) internal successors, (95), 90 states have internal predecessors, (95), 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) [2022-12-13 19:36:52,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 103 transitions. [2022-12-13 19:36:52,798 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 103 transitions. Word has length 36 [2022-12-13 19:36:52,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:52,798 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 103 transitions. [2022-12-13 19:36:52,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) [2022-12-13 19:36:52,798 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 103 transitions. [2022-12-13 19:36:52,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-13 19:36:52,798 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:52,799 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] [2022-12-13 19:36:52,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:52,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:53,000 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:53,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:53,001 INFO L85 PathProgramCache]: Analyzing trace with hash 74876930, now seen corresponding path program 1 times [2022-12-13 19:36:53,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:53,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979794361] [2022-12-13 19:36:53,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:53,003 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 [2022-12-13 19:36:53,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:53,006 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:53,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:53,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 19:36:53,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:53,202 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 [2022-12-13 19:36:53,321 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 19:36:53,321 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:53,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:53,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979794361] [2022-12-13 19:36:53,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979794361] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:53,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:53,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 19:36:53,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875471512] [2022-12-13 19:36:53,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:53,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 19:36:53,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:53,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 19:36:53,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-13 19:36:53,323 INFO L87 Difference]: Start difference. First operand 98 states and 103 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 19:36:53,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:53,674 INFO L93 Difference]: Finished difference Result 114 states and 124 transitions. [2022-12-13 19:36:53,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 19:36:53,675 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-12-13 19:36:53,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:53,676 INFO L225 Difference]: With dead ends: 114 [2022-12-13 19:36:53,676 INFO L226 Difference]: Without dead ends: 114 [2022-12-13 19:36:53,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-12-13 19:36:53,677 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 90 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:53,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 339 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 19:36:53,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-12-13 19:36:53,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 96. [2022-12-13 19:36:53,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 74 states have (on average 1.2567567567567568) internal successors, (93), 88 states have internal predecessors, (93), 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) [2022-12-13 19:36:53,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 101 transitions. [2022-12-13 19:36:53,679 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 101 transitions. Word has length 44 [2022-12-13 19:36:53,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:53,680 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 101 transitions. [2022-12-13 19:36:53,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 19:36:53,680 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 101 transitions. [2022-12-13 19:36:53,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-13 19:36:53,680 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:53,681 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] [2022-12-13 19:36:53,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:53,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:53,882 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:53,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:53,883 INFO L85 PathProgramCache]: Analyzing trace with hash 74876931, now seen corresponding path program 1 times [2022-12-13 19:36:53,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:53,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272814638] [2022-12-13 19:36:53,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:53,886 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 [2022-12-13 19:36:53,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:53,889 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:53,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:54,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 19:36:54,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:54,071 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 [2022-12-13 19:36:54,287 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 19:36:54,287 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:54,287 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:54,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272814638] [2022-12-13 19:36:54,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272814638] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:54,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:54,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 19:36:54,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693508826] [2022-12-13 19:36:54,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:54,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 19:36:54,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:54,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 19:36:54,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-13 19:36:54,289 INFO L87 Difference]: Start difference. First operand 96 states and 101 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 19:36:54,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:54,667 INFO L93 Difference]: Finished difference Result 103 states and 109 transitions. [2022-12-13 19:36:54,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 19:36:54,668 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2022-12-13 19:36:54,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:54,668 INFO L225 Difference]: With dead ends: 103 [2022-12-13 19:36:54,668 INFO L226 Difference]: Without dead ends: 103 [2022-12-13 19:36:54,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-12-13 19:36:54,669 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 97 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:54,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 418 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 19:36:54,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-12-13 19:36:54,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 94. [2022-12-13 19:36:54,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 86 states have internal predecessors, (91), 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) [2022-12-13 19:36:54,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2022-12-13 19:36:54,671 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 44 [2022-12-13 19:36:54,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:54,671 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2022-12-13 19:36:54,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 19:36:54,671 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2022-12-13 19:36:54,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-13 19:36:54,672 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:54,672 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] [2022-12-13 19:36:54,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:54,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:54,873 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:54,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:54,873 INFO L85 PathProgramCache]: Analyzing trace with hash 496438540, now seen corresponding path program 1 times [2022-12-13 19:36:54,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:54,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791925406] [2022-12-13 19:36:54,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:54,874 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 [2022-12-13 19:36:54,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:54,875 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:54,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:55,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 19:36:55,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:55,123 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 19:36:55,123 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:55,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:55,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791925406] [2022-12-13 19:36:55,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791925406] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:55,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:55,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 19:36:55,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537661616] [2022-12-13 19:36:55,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:55,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:36:55,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:55,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:36:55,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:36:55,125 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 19:36:55,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:55,170 INFO L93 Difference]: Finished difference Result 94 states and 98 transitions. [2022-12-13 19:36:55,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:36:55,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (3), 2 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 50 [2022-12-13 19:36:55,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:55,171 INFO L225 Difference]: With dead ends: 94 [2022-12-13 19:36:55,171 INFO L226 Difference]: Without dead ends: 94 [2022-12-13 19:36:55,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-13 19:36:55,172 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 42 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:55,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 394 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:36:55,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-12-13 19:36:55,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-12-13 19:36:55,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 74 states have (on average 1.2162162162162162) internal successors, (90), 86 states have internal predecessors, (90), 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) [2022-12-13 19:36:55,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 98 transitions. [2022-12-13 19:36:55,174 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 98 transitions. Word has length 50 [2022-12-13 19:36:55,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:55,174 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 98 transitions. [2022-12-13 19:36:55,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 19:36:55,174 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 98 transitions. [2022-12-13 19:36:55,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 19:36:55,175 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:55,175 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] [2022-12-13 19:36:55,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:55,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:55,376 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:55,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:55,378 INFO L85 PathProgramCache]: Analyzing trace with hash -774905870, now seen corresponding path program 1 times [2022-12-13 19:36:55,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:55,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42841050] [2022-12-13 19:36:55,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:55,380 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 [2022-12-13 19:36:55,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:55,384 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:55,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:55,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:55,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-13 19:36:55,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:55,714 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 [2022-12-13 19:36:55,846 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 19:36:55,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:55,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:55,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42841050] [2022-12-13 19:36:55,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42841050] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:55,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:55,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 19:36:55,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255387444] [2022-12-13 19:36:55,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:55,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 19:36:55,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:55,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 19:36:55,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-13 19:36:55,848 INFO L87 Difference]: Start difference. First operand 94 states and 98 transitions. Second operand has 12 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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) [2022-12-13 19:36:56,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:56,306 INFO L93 Difference]: Finished difference Result 135 states and 143 transitions. [2022-12-13 19:36:56,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 19:36:56,307 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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 56 [2022-12-13 19:36:56,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:56,308 INFO L225 Difference]: With dead ends: 135 [2022-12-13 19:36:56,308 INFO L226 Difference]: Without dead ends: 135 [2022-12-13 19:36:56,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-12-13 19:36:56,309 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 166 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:56,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 354 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 19:36:56,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-12-13 19:36:56,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 115. [2022-12-13 19:36:56,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 92 states have (on average 1.2173913043478262) internal successors, (112), 104 states have internal predecessors, (112), 5 states have call successors, (5), 5 states have call predecessors, (5), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2022-12-13 19:36:56,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 126 transitions. [2022-12-13 19:36:56,313 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 126 transitions. Word has length 56 [2022-12-13 19:36:56,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:56,314 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 126 transitions. [2022-12-13 19:36:56,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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) [2022-12-13 19:36:56,314 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 126 transitions. [2022-12-13 19:36:56,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 19:36:56,314 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:56,314 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] [2022-12-13 19:36:56,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Forceful destruction successful, exit code 0 [2022-12-13 19:36:56,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:56,516 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_kobject_putErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:56,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:56,517 INFO L85 PathProgramCache]: Analyzing trace with hash -774905869, now seen corresponding path program 1 times [2022-12-13 19:36:56,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:56,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1108613636] [2022-12-13 19:36:56,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:56,519 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 [2022-12-13 19:36:56,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:56,522 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:56,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:56,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-13 19:36:56,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:56,761 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 [2022-12-13 19:36:56,987 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 19:36:56,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:56,987 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:56,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1108613636] [2022-12-13 19:36:56,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1108613636] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:56,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:56,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 19:36:56,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5392222] [2022-12-13 19:36:56,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:56,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 19:36:56,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:56,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 19:36:56,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-12-13 19:36:56,989 INFO L87 Difference]: Start difference. First operand 115 states and 126 transitions. Second operand has 13 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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) [2022-12-13 19:36:57,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:57,427 INFO L93 Difference]: Finished difference Result 117 states and 126 transitions. [2022-12-13 19:36:57,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 19:36:57,428 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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 56 [2022-12-13 19:36:57,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:57,428 INFO L225 Difference]: With dead ends: 117 [2022-12-13 19:36:57,428 INFO L226 Difference]: Without dead ends: 117 [2022-12-13 19:36:57,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-12-13 19:36:57,429 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 139 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:57,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 421 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 19:36:57,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-12-13 19:36:57,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 107. [2022-12-13 19:36:57,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 88 states have (on average 1.1704545454545454) internal successors, (103), 98 states have internal predecessors, (103), 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) [2022-12-13 19:36:57,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 113 transitions. [2022-12-13 19:36:57,432 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 113 transitions. Word has length 56 [2022-12-13 19:36:57,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:57,432 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 113 transitions. [2022-12-13 19:36:57,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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) [2022-12-13 19:36:57,432 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 113 transitions. [2022-12-13 19:36:57,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-13 19:36:57,432 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:57,432 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:36:57,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:57,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:57,634 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:57,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:57,635 INFO L85 PathProgramCache]: Analyzing trace with hash -178952659, now seen corresponding path program 1 times [2022-12-13 19:36:57,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:57,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [3439251] [2022-12-13 19:36:57,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:57,637 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 [2022-12-13 19:36:57,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:57,638 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:57,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:57,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 19:36:57,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:57,964 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 19:36:57,964 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:57,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:57,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [3439251] [2022-12-13 19:36:57,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [3439251] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:57,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:57,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 19:36:57,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726621078] [2022-12-13 19:36:57,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:57,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 19:36:57,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:57,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 19:36:57,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 19:36:57,965 INFO L87 Difference]: Start difference. First operand 107 states and 113 transitions. Second operand has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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) [2022-12-13 19:36:58,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:58,051 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2022-12-13 19:36:58,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 19:36:58,051 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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 62 [2022-12-13 19:36:58,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:58,052 INFO L225 Difference]: With dead ends: 111 [2022-12-13 19:36:58,052 INFO L226 Difference]: Without dead ends: 107 [2022-12-13 19:36:58,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-12-13 19:36:58,052 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 71 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:58,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 514 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:36:58,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-12-13 19:36:58,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-12-13 19:36:58,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 88 states have (on average 1.1477272727272727) internal successors, (101), 98 states have internal predecessors, (101), 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) [2022-12-13 19:36:58,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2022-12-13 19:36:58,055 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 62 [2022-12-13 19:36:58,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:58,056 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2022-12-13 19:36:58,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 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) [2022-12-13 19:36:58,056 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2022-12-13 19:36:58,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-13 19:36:58,056 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:58,057 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, 1, 1, 1] [2022-12-13 19:36:58,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:36:58,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:58,258 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_kobject_putErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:58,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:58,259 INFO L85 PathProgramCache]: Analyzing trace with hash 59491574, now seen corresponding path program 1 times [2022-12-13 19:36:58,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:58,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782812580] [2022-12-13 19:36:58,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:58,261 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 [2022-12-13 19:36:58,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:58,264 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:58,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:58,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:58,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-13 19:36:58,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:58,575 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 [2022-12-13 19:36:58,721 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 19:36:58,721 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:36:58,721 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:36:58,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782812580] [2022-12-13 19:36:58,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782812580] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:36:58,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:36:58,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 19:36:58,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127018833] [2022-12-13 19:36:58,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:36:58,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 19:36:58,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:36:58,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 19:36:58,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-12-13 19:36:58,723 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand has 13 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 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) [2022-12-13 19:36:59,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:36:59,229 INFO L93 Difference]: Finished difference Result 123 states and 128 transitions. [2022-12-13 19:36:59,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 19:36:59,229 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 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 62 [2022-12-13 19:36:59,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:36:59,230 INFO L225 Difference]: With dead ends: 123 [2022-12-13 19:36:59,230 INFO L226 Difference]: Without dead ends: 123 [2022-12-13 19:36:59,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2022-12-13 19:36:59,231 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 115 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 19:36:59,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 362 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 19:36:59,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-12-13 19:36:59,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 107. [2022-12-13 19:36:59,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 89 states have (on average 1.146067415730337) internal successors, (102), 98 states have internal predecessors, (102), 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) [2022-12-13 19:36:59,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 112 transitions. [2022-12-13 19:36:59,235 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 112 transitions. Word has length 62 [2022-12-13 19:36:59,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:36:59,235 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 112 transitions. [2022-12-13 19:36:59,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 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) [2022-12-13 19:36:59,235 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 112 transitions. [2022-12-13 19:36:59,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-13 19:36:59,236 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:36:59,236 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, 1, 1, 1] [2022-12-13 19:36:59,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:59,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:36:59,437 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_kobject_putErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:36:59,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:36:59,438 INFO L85 PathProgramCache]: Analyzing trace with hash 59491575, now seen corresponding path program 1 times [2022-12-13 19:36:59,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:36:59,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953243536] [2022-12-13 19:36:59,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:36:59,440 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 [2022-12-13 19:36:59,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:36:59,444 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:36:59,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 (26)] Waiting until timeout for monitored process [2022-12-13 19:36:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:36:59,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 47 conjunts are in the unsatisfiable core [2022-12-13 19:36:59,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:36:59,918 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 [2022-12-13 19:37:00,268 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 19:37:00,268 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:37:00,268 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:37:00,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953243536] [2022-12-13 19:37:00,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953243536] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:37:00,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:37:00,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 19:37:00,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639938287] [2022-12-13 19:37:00,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:37:00,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 19:37:00,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:37:00,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 19:37:00,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-12-13 19:37:00,270 INFO L87 Difference]: Start difference. First operand 107 states and 112 transitions. Second operand has 14 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 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) [2022-12-13 19:37:00,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:37:00,946 INFO L93 Difference]: Finished difference Result 105 states and 109 transitions. [2022-12-13 19:37:00,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 19:37:00,947 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 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 62 [2022-12-13 19:37:00,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:37:00,948 INFO L225 Difference]: With dead ends: 105 [2022-12-13 19:37:00,948 INFO L226 Difference]: Without dead ends: 105 [2022-12-13 19:37:00,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2022-12-13 19:37:00,949 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 144 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 19:37:00,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 420 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 19:37:00,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-12-13 19:37:00,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2022-12-13 19:37:00,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 89 states have (on average 1.1123595505617978) internal successors, (99), 96 states have internal predecessors, (99), 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) [2022-12-13 19:37:00,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 109 transitions. [2022-12-13 19:37:00,951 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 109 transitions. Word has length 62 [2022-12-13 19:37:00,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:37:00,951 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 109 transitions. [2022-12-13 19:37:00,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 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) [2022-12-13 19:37:00,951 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 109 transitions. [2022-12-13 19:37:00,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-13 19:37:00,951 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:37:00,952 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, 1, 1, 1, 1, 1, 1] [2022-12-13 19:37:00,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 (26)] Forceful destruction successful, exit code 0 [2022-12-13 19:37:01,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:37:01,153 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_kobject_putErr7ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:37:01,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:37:01,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1507930724, now seen corresponding path program 1 times [2022-12-13 19:37:01,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:37:01,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417432087] [2022-12-13 19:37:01,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:37:01,156 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 [2022-12-13 19:37:01,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:37:01,159 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:37:01,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:37:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:37:01,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-13 19:37:01,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:37:02,001 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 19:37:02,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:37:02,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:37:02,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417432087] [2022-12-13 19:37:02,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417432087] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:37:02,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:37:02,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 19:37:02,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145164978] [2022-12-13 19:37:02,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:37:02,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 19:37:02,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:37:02,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 19:37:02,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-12-13 19:37:02,003 INFO L87 Difference]: Start difference. First operand 105 states and 109 transitions. Second operand has 14 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 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) [2022-12-13 19:37:02,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:37:02,400 INFO L93 Difference]: Finished difference Result 104 states and 108 transitions. [2022-12-13 19:37:02,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 19:37:02,401 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 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 65 [2022-12-13 19:37:02,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:37:02,402 INFO L225 Difference]: With dead ends: 104 [2022-12-13 19:37:02,403 INFO L226 Difference]: Without dead ends: 104 [2022-12-13 19:37:02,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2022-12-13 19:37:02,404 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 154 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 19:37:02,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 427 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 19:37:02,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-12-13 19:37:02,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2022-12-13 19:37:02,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 89 states have (on average 1.101123595505618) internal successors, (98), 95 states have internal predecessors, (98), 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) [2022-12-13 19:37:02,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 108 transitions. [2022-12-13 19:37:02,407 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 108 transitions. Word has length 65 [2022-12-13 19:37:02,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:37:02,408 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 108 transitions. [2022-12-13 19:37:02,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 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) [2022-12-13 19:37:02,408 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 108 transitions. [2022-12-13 19:37:02,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-13 19:37:02,409 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:37:02,409 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:37:02,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:37:02,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:37:02,609 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_kobject_putErr9ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:37:02,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:37:02,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1701102758, now seen corresponding path program 1 times [2022-12-13 19:37:02,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:37:02,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268265860] [2022-12-13 19:37:02,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:37:02,610 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 [2022-12-13 19:37:02,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:37:02,611 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:37:02,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Waiting until timeout for monitored process [2022-12-13 19:37:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:37:03,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 86 conjunts are in the unsatisfiable core [2022-12-13 19:37:03,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:37:03,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 38 [2022-12-13 19:37:03,240 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2050 (_ BitVec 8)) (v_ArrVal_2049 (_ BitVec 8))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2049) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_2050)))) is different from true [2022-12-13 19:37:03,254 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 29 treesize of output 32 [2022-12-13 19:37:03,569 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:37:03,574 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:37:03,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 69 [2022-12-13 19:37:03,823 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:37:03,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 43 treesize of output 23 [2022-12-13 19:37:04,064 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 19:37:04,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:37:04,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:37:04,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268265860] [2022-12-13 19:37:04,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [268265860] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:37:04,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:37:04,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-12-13 19:37:04,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35980455] [2022-12-13 19:37:04,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:37:04,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-13 19:37:04,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:37:04,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-13 19:37:04,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=641, Unknown=1, NotChecked=50, Total=756 [2022-12-13 19:37:04,065 INFO L87 Difference]: Start difference. First operand 104 states and 108 transitions. Second operand has 28 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 25 states have internal predecessors, (48), 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) [2022-12-13 19:37:05,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:37:05,998 INFO L93 Difference]: Finished difference Result 103 states and 105 transitions. [2022-12-13 19:37:05,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 19:37:05,998 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 25 states have internal predecessors, (48), 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 68 [2022-12-13 19:37:05,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:37:05,999 INFO L225 Difference]: With dead ends: 103 [2022-12-13 19:37:05,999 INFO L226 Difference]: Without dead ends: 103 [2022-12-13 19:37:06,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=191, Invalid=1792, Unknown=1, NotChecked=86, Total=2070 [2022-12-13 19:37:06,001 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 67 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 95 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:37:06,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 896 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 648 Invalid, 0 Unknown, 95 Unchecked, 1.1s Time] [2022-12-13 19:37:06,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-12-13 19:37:06,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2022-12-13 19:37:06,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 85 states have (on average 1.0941176470588236) internal successors, (93), 90 states have internal predecessors, (93), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 19:37:06,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 101 transitions. [2022-12-13 19:37:06,003 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 101 transitions. Word has length 68 [2022-12-13 19:37:06,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:37:06,003 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 101 transitions. [2022-12-13 19:37:06,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 1.7777777777777777) internal successors, (48), 25 states have internal predecessors, (48), 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) [2022-12-13 19:37:06,003 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 101 transitions. [2022-12-13 19:37:06,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-12-13 19:37:06,003 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:37:06,003 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, 1, 1] [2022-12-13 19:37:06,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Forceful destruction successful, exit code 0 [2022-12-13 19:37:06,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:37:06,204 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:37:06,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:37:06,205 INFO L85 PathProgramCache]: Analyzing trace with hash -756328715, now seen corresponding path program 1 times [2022-12-13 19:37:06,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:37:06,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491941647] [2022-12-13 19:37:06,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:37:06,206 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 [2022-12-13 19:37:06,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:37:06,207 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:37:06,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:37:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:37:06,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-13 19:37:06,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:37:06,496 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 [2022-12-13 19:37:06,651 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 19:37:06,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:37:06,817 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 19:37:06,817 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:37:06,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [491941647] [2022-12-13 19:37:06,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [491941647] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:37:06,818 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:37:06,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 12 [2022-12-13 19:37:06,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082511150] [2022-12-13 19:37:06,818 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:37:06,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 19:37:06,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:37:06,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 19:37:06,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-13 19:37:06,819 INFO L87 Difference]: Start difference. First operand 99 states and 101 transitions. Second operand has 13 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 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) [2022-12-13 19:37:07,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:37:07,364 INFO L93 Difference]: Finished difference Result 105 states and 106 transitions. [2022-12-13 19:37:07,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 19:37:07,364 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 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 70 [2022-12-13 19:37:07,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:37:07,365 INFO L225 Difference]: With dead ends: 105 [2022-12-13 19:37:07,365 INFO L226 Difference]: Without dead ends: 105 [2022-12-13 19:37:07,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 127 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-12-13 19:37:07,366 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 112 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 19:37:07,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 340 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 19:37:07,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-12-13 19:37:07,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 98. [2022-12-13 19:37:07,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 85 states have (on average 1.0823529411764705) internal successors, (92), 89 states have internal predecessors, (92), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 19:37:07,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 100 transitions. [2022-12-13 19:37:07,369 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 100 transitions. Word has length 70 [2022-12-13 19:37:07,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:37:07,370 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 100 transitions. [2022-12-13 19:37:07,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 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) [2022-12-13 19:37:07,370 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 100 transitions. [2022-12-13 19:37:07,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-13 19:37:07,370 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:37:07,371 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:37:07,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:37:07,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:37:07,571 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_kobject_putErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:37:07,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:37:07,571 INFO L85 PathProgramCache]: Analyzing trace with hash 681881017, now seen corresponding path program 1 times [2022-12-13 19:37:07,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:37:07,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159279351] [2022-12-13 19:37:07,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:37:07,572 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 [2022-12-13 19:37:07,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:37:07,573 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:37:07,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:37:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:37:07,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-13 19:37:07,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:37:07,886 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 [2022-12-13 19:37:08,042 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 19:37:08,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:37:08,216 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 19:37:08,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:37:08,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159279351] [2022-12-13 19:37:08,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [159279351] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:37:08,217 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:37:08,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 13 [2022-12-13 19:37:08,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364015871] [2022-12-13 19:37:08,217 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:37:08,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 19:37:08,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:37:08,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 19:37:08,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-12-13 19:37:08,218 INFO L87 Difference]: Start difference. First operand 98 states and 100 transitions. Second operand has 14 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 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) [2022-12-13 19:37:08,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:37:08,814 INFO L93 Difference]: Finished difference Result 104 states and 105 transitions. [2022-12-13 19:37:08,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 19:37:08,814 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 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 76 [2022-12-13 19:37:08,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:37:08,815 INFO L225 Difference]: With dead ends: 104 [2022-12-13 19:37:08,815 INFO L226 Difference]: Without dead ends: 104 [2022-12-13 19:37:08,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 138 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2022-12-13 19:37:08,816 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 110 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 19:37:08,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 396 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 19:37:08,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-12-13 19:37:08,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 97. [2022-12-13 19:37:08,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 85 states have (on average 1.0705882352941176) internal successors, (91), 88 states have internal predecessors, (91), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 19:37:08,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 99 transitions. [2022-12-13 19:37:08,819 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 99 transitions. Word has length 76 [2022-12-13 19:37:08,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:37:08,819 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 99 transitions. [2022-12-13 19:37:08,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 12 states have internal predecessors, (69), 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) [2022-12-13 19:37:08,819 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 99 transitions. [2022-12-13 19:37:08,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-12-13 19:37:08,820 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:37:08,820 INFO L195 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2022-12-13 19:37:08,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:37:09,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:37:09,021 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:37:09,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:37:09,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1200120414, now seen corresponding path program 1 times [2022-12-13 19:37:09,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:37:09,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353567890] [2022-12-13 19:37:09,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:37:09,025 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 [2022-12-13 19:37:09,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:37:09,027 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:37:09,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:37:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:37:09,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 122 conjunts are in the unsatisfiable core [2022-12-13 19:37:09,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:37:09,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:37:09,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:37:09,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:37:09,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:37:09,583 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:37:09,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2022-12-13 19:37:09,710 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2561 (_ BitVec 8)) (v_ArrVal_2564 (_ BitVec 8))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2561) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_2564)))) is different from true [2022-12-13 19:37:09,723 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:37:09,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 71 [2022-12-13 19:37:10,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:37:10,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:37:10,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:37:10,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:37:10,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:37:10,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:37:10,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:37:10,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:37:10,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:37:10,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:37:10,161 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:37:10,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 193 treesize of output 165 [2022-12-13 19:37:10,909 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:37:10,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 249 treesize of output 137 [2022-12-13 19:37:15,734 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-12-13 19:37:15,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:37:57,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:37:57,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353567890] [2022-12-13 19:37:57,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353567890] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:37:57,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [898379454] [2022-12-13 19:37:57,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:37:57,013 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 19:37:57,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 19:37:57,014 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 19:37:57,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2022-12-13 19:37:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:37:58,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 139 conjunts are in the unsatisfiable core [2022-12-13 19:37:58,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:38:01,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:01,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:01,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:01,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:38:01,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:38:01,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2022-12-13 19:38:01,829 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2765 (_ BitVec 8)) (v_ArrVal_2561 (_ BitVec 8))) (= (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2561) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_2765)) |c_#memory_int|)) is different from true [2022-12-13 19:38:01,847 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:38:01,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 71 [2022-12-13 19:38:01,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:01,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:01,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:01,993 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:38:01,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:01,994 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:38:01,995 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:38:01,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:01,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:01,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:38:02,005 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:38:02,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 10 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 193 treesize of output 165 [2022-12-13 19:38:02,250 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:38:02,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 249 treesize of output 137 [2022-12-13 19:38:02,359 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 19:38:02,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:38:05,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [898379454] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:38:05,982 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:38:05,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 44] total 45 [2022-12-13 19:38:05,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481158197] [2022-12-13 19:38:05,982 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:38:05,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-12-13 19:38:05,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:38:05,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-12-13 19:38:05,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=4076, Unknown=12, NotChecked=258, Total=4556 [2022-12-13 19:38:05,984 INFO L87 Difference]: Start difference. First operand 97 states and 99 transitions. Second operand has 45 states, 44 states have (on average 1.6136363636363635) internal successors, (71), 43 states have internal predecessors, (71), 4 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-13 19:38:08,706 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|)) (.cse1 (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) (and (exists ((v_ArrVal_2561 (_ BitVec 8)) (v_ArrVal_2564 (_ BitVec 8))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store .cse0 |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2561) .cse1 v_ArrVal_2564)))) (exists ((v_ArrVal_2765 (_ BitVec 8)) (v_ArrVal_2561 (_ BitVec 8))) (= (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store .cse0 |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2561) .cse1 v_ArrVal_2765)) |c_#memory_int|)))) is different from true [2022-12-13 19:38:56,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:38:56,013 INFO L93 Difference]: Finished difference Result 101 states and 102 transitions. [2022-12-13 19:38:56,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-13 19:38:56,015 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 1.6136363636363635) internal successors, (71), 43 states have internal predecessors, (71), 4 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 81 [2022-12-13 19:38:56,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:38:56,015 INFO L225 Difference]: With dead ends: 101 [2022-12-13 19:38:56,015 INFO L226 Difference]: Without dead ends: 97 [2022-12-13 19:38:56,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 177 SyntacticMatches, 3 SemanticMatches, 93 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 2027 ImplicationChecksByTransitivity, 97.4s TimeCoverageRelationStatistics Valid=538, Invalid=7822, Unknown=24, NotChecked=546, Total=8930 [2022-12-13 19:38:56,018 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 125 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 198 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-13 19:38:56,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1028 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1455 Invalid, 0 Unknown, 198 Unchecked, 2.9s Time] [2022-12-13 19:38:56,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-12-13 19:38:56,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-12-13 19:38:56,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 85 states have (on average 1.0588235294117647) internal successors, (90), 88 states have internal predecessors, (90), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 19:38:56,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 98 transitions. [2022-12-13 19:38:56,020 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 98 transitions. Word has length 81 [2022-12-13 19:38:56,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:38:56,020 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 98 transitions. [2022-12-13 19:38:56,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 1.6136363636363635) internal successors, (71), 43 states have internal predecessors, (71), 4 states have call successors, (4), 2 states have call predecessors, (4), 5 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-13 19:38:56,020 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 98 transitions. [2022-12-13 19:38:56,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-12-13 19:38:56,020 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:38:56,021 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:38:56,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2022-12-13 19:38:56,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 19:38:56,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:38:56,423 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_kobject_putErr9ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:38:56,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:38:56,424 INFO L85 PathProgramCache]: Analyzing trace with hash 2126857693, now seen corresponding path program 1 times [2022-12-13 19:38:56,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:38:56,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870191512] [2022-12-13 19:38:56,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:38:56,426 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 [2022-12-13 19:38:56,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:38:56,427 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:38:56,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 (33)] Waiting until timeout for monitored process [2022-12-13 19:38:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:38:56,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 164 conjunts are in the unsatisfiable core [2022-12-13 19:38:56,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:38:57,025 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 [2022-12-13 19:38:57,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:57,054 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 [2022-12-13 19:38:57,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:57,089 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 [2022-12-13 19:38:57,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:57,127 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 [2022-12-13 19:38:57,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:57,157 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 [2022-12-13 19:38:57,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:57,194 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 [2022-12-13 19:38:57,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:57,234 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 [2022-12-13 19:38:57,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:57,268 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 [2022-12-13 19:38:57,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:57,312 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 [2022-12-13 19:38:57,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:57,360 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 [2022-12-13 19:38:57,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:57,412 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 [2022-12-13 19:38:57,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:57,450 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 [2022-12-13 19:38:57,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:57,488 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 [2022-12-13 19:38:57,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:57,527 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 [2022-12-13 19:38:57,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:57,568 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 22 treesize of output 21 [2022-12-13 19:38:57,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:57,627 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 [2022-12-13 19:38:57,862 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 [2022-12-13 19:38:57,989 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3001 (_ BitVec 32)) (v_ArrVal_2999 (_ BitVec 32))) (= |c_#memory_$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_2999) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_3001)))) is different from true [2022-12-13 19:38:58,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:58,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:58,001 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 [2022-12-13 19:38:58,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:58,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:58,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:58,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:58,150 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 [2022-12-13 19:38:58,381 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3010 (_ BitVec 32)) (v_ArrVal_3009 (_ BitVec 32)) (v_ArrVal_3007 (_ BitVec 32)) (v_ArrVal_3008 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_put_#in~kobj#1.base| (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_put_#in~kobj#1.base|) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv12 32)) v_ArrVal_3007) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv13 32)) v_ArrVal_3009) (bvadd (_ bv14 32) |c_ldv_kobject_put_#in~kobj#1.offset|) v_ArrVal_3008) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv15 32)) v_ArrVal_3010)) |c_#memory_$Pointer$.offset|)) is different from true [2022-12-13 19:38:58,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:58,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:58,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:58,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:58,433 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 [2022-12-13 19:38:58,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:58,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:58,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:58,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:58,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:58,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:38:58,600 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 [2022-12-13 19:38:58,715 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 [2022-12-13 19:38:58,798 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-12-13 19:38:58,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:39:00,308 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:39:00,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870191512] [2022-12-13 19:39:00,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1870191512] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:39:00,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [33265988] [2022-12-13 19:39:00,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:39:00,309 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 19:39:00,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 19:39:00,310 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 19:39:00,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2022-12-13 19:39:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:39:01,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 160 conjunts are in the unsatisfiable core [2022-12-13 19:39:01,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:39:01,341 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 [2022-12-13 19:39:01,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,358 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 [2022-12-13 19:39:01,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,373 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 [2022-12-13 19:39:01,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,393 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 [2022-12-13 19:39:01,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,407 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 [2022-12-13 19:39:01,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,436 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 [2022-12-13 19:39:01,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,454 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 [2022-12-13 19:39:01,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,469 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 [2022-12-13 19:39:01,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,488 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 [2022-12-13 19:39:01,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,501 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 [2022-12-13 19:39:01,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,524 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 [2022-12-13 19:39:01,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,539 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 [2022-12-13 19:39:01,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,565 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 [2022-12-13 19:39:01,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,582 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 [2022-12-13 19:39:01,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,601 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 [2022-12-13 19:39:01,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,614 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 [2022-12-13 19:39:01,669 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 [2022-12-13 19:39:01,770 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2999 (_ BitVec 32)) (v_ArrVal_3241 (_ BitVec 32))) (= |c_#memory_$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_2999) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_3241)))) is different from true [2022-12-13 19:39:01,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,783 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 [2022-12-13 19:39:01,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,844 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 [2022-12-13 19:39:01,936 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3250 (_ BitVec 32)) (v_ArrVal_3249 (_ BitVec 32)) (v_ArrVal_3247 (_ BitVec 32)) (v_ArrVal_3248 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_put_#in~kobj#1.base| (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |c_ldv_kobject_put_#in~kobj#1.base|) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv12 32)) v_ArrVal_3249) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv13 32)) v_ArrVal_3250) (bvadd (_ bv14 32) |c_ldv_kobject_put_#in~kobj#1.offset|) v_ArrVal_3247) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv15 32)) v_ArrVal_3248)))) is different from true [2022-12-13 19:39:01,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:01,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:02,000 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 [2022-12-13 19:39:02,126 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 [2022-12-13 19:39:02,275 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:39:02,276 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 [2022-12-13 19:39:02,421 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-12-13 19:39:02,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:39:04,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [33265988] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:39:04,595 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:39:04,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 45] total 51 [2022-12-13 19:39:04,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802906972] [2022-12-13 19:39:04,595 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:39:04,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-12-13 19:39:04,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:39:04,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-12-13 19:39:04,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=3347, Unknown=4, NotChecked=476, Total=4032 [2022-12-13 19:39:04,597 INFO L87 Difference]: Start difference. First operand 97 states and 98 transitions. Second operand has 52 states, 50 states have (on average 1.88) internal successors, (94), 49 states have internal predecessors, (94), 4 states have call successors, (4), 3 states have call predecessors, (4), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-13 19:39:07,736 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_old(#memory_$Pointer$.offset)| |c_LDV_INIT_LIST_HEAD_#in~list.base|)) (.cse1 (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) (and (exists ((v_ArrVal_2999 (_ BitVec 32)) (v_ArrVal_3241 (_ BitVec 32))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store .cse0 |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2999) .cse1 v_ArrVal_3241)))) (exists ((v_ArrVal_3001 (_ BitVec 32)) (v_ArrVal_2999 (_ BitVec 32))) (= |c_#memory_$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_2999) .cse1 v_ArrVal_3001)))))) is different from true [2022-12-13 19:39:11,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:39:11,675 INFO L93 Difference]: Finished difference Result 96 states and 97 transitions. [2022-12-13 19:39:11,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-13 19:39:11,675 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 50 states have (on average 1.88) internal successors, (94), 49 states have internal predecessors, (94), 4 states have call successors, (4), 3 states have call predecessors, (4), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 82 [2022-12-13 19:39:11,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:39:11,675 INFO L225 Difference]: With dead ends: 96 [2022-12-13 19:39:11,676 INFO L226 Difference]: Without dead ends: 96 [2022-12-13 19:39:11,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 135 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 2019 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=515, Invalid=7868, Unknown=9, NotChecked=920, Total=9312 [2022-12-13 19:39:11,677 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 268 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 349 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-13 19:39:11,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 592 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1438 Invalid, 0 Unknown, 349 Unchecked, 2.8s Time] [2022-12-13 19:39:11,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-12-13 19:39:11,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-12-13 19:39:11,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 85 states have (on average 1.0470588235294118) internal successors, (89), 87 states have internal predecessors, (89), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 19:39:11,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 97 transitions. [2022-12-13 19:39:11,679 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 97 transitions. Word has length 82 [2022-12-13 19:39:11,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:39:11,679 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 97 transitions. [2022-12-13 19:39:11,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 50 states have (on average 1.88) internal successors, (94), 49 states have internal predecessors, (94), 4 states have call successors, (4), 3 states have call predecessors, (4), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-13 19:39:11,679 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 97 transitions. [2022-12-13 19:39:11,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-12-13 19:39:11,679 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:39:11,679 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:39:11,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (34)] Forceful destruction successful, exit code 0 [2022-12-13 19:39:11,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 (33)] Ended with exit code 0 [2022-12-13 19:39:12,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:39:12,082 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_kobject_putErr10ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:39:12,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:39:12,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1508079198, now seen corresponding path program 1 times [2022-12-13 19:39:12,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:39:12,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530081449] [2022-12-13 19:39:12,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:39:12,084 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 [2022-12-13 19:39:12,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:39:12,085 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:39:12,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 (35)] Waiting until timeout for monitored process [2022-12-13 19:39:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:39:12,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 164 conjunts are in the unsatisfiable core [2022-12-13 19:39:12,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:39:12,727 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 [2022-12-13 19:39:12,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:12,773 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 [2022-12-13 19:39:12,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:12,818 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 [2022-12-13 19:39:12,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:12,867 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 [2022-12-13 19:39:12,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:12,932 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 [2022-12-13 19:39:12,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:12,990 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 [2022-12-13 19:39:13,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:13,052 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 [2022-12-13 19:39:13,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:13,116 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 [2022-12-13 19:39:13,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:13,174 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 [2022-12-13 19:39:13,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:13,243 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 [2022-12-13 19:39:13,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:13,296 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 [2022-12-13 19:39:13,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:13,368 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 [2022-12-13 19:39:13,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:13,430 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 [2022-12-13 19:39:13,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:13,488 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 [2022-12-13 19:39:13,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:13,547 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 [2022-12-13 19:39:13,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:13,608 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 [2022-12-13 19:39:13,843 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 [2022-12-13 19:39:14,050 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3480 (_ BitVec 32)) (v_ArrVal_3478 (_ BitVec 32))) (= |c_#memory_$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_3478) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_3480)))) is different from true [2022-12-13 19:39:14,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:14,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:14,064 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 [2022-12-13 19:39:14,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:14,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:14,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:14,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:14,315 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 [2022-12-13 19:39:14,685 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3488 (_ BitVec 32)) (v_ArrVal_3490 (_ BitVec 32)) (v_ArrVal_3491 (_ BitVec 32)) (v_ArrVal_3489 (_ BitVec 32))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_ldv_kobject_put_#in~kobj#1.base| (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_ldv_kobject_put_#in~kobj#1.base|) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv12 32)) v_ArrVal_3491) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv13 32)) v_ArrVal_3489) (bvadd (_ bv14 32) |c_ldv_kobject_put_#in~kobj#1.offset|) v_ArrVal_3490) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv15 32)) v_ArrVal_3488)))) is different from true [2022-12-13 19:39:14,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:14,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:14,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:14,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:14,741 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 [2022-12-13 19:39:14,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:14,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:14,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:14,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:14,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:14,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:14,998 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 [2022-12-13 19:39:15,133 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 [2022-12-13 19:39:15,316 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-12-13 19:39:15,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:39:16,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:39:16,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530081449] [2022-12-13 19:39:16,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530081449] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:39:16,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [332953039] [2022-12-13 19:39:16,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:39:16,972 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 19:39:16,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 19:39:16,973 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 19:39:16,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2022-12-13 19:39:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:39:17,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 160 conjunts are in the unsatisfiable core [2022-12-13 19:39:17,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:39:17,720 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 [2022-12-13 19:39:17,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:17,748 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 [2022-12-13 19:39:17,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:17,764 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 [2022-12-13 19:39:17,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:17,789 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 [2022-12-13 19:39:17,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:17,810 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 [2022-12-13 19:39:17,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:17,836 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 [2022-12-13 19:39:17,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:17,853 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 [2022-12-13 19:39:17,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:17,873 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 [2022-12-13 19:39:17,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:17,896 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 [2022-12-13 19:39:17,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:17,915 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 [2022-12-13 19:39:17,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:17,937 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 [2022-12-13 19:39:17,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:17,959 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 [2022-12-13 19:39:17,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:17,979 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 [2022-12-13 19:39:17,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:17,998 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 [2022-12-13 19:39:18,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:18,021 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 [2022-12-13 19:39:18,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:18,031 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 [2022-12-13 19:39:18,083 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 [2022-12-13 19:39:18,197 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3478 (_ BitVec 32)) (v_ArrVal_3721 (_ BitVec 32))) (= |c_#memory_$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_3478) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_3721)))) is different from true [2022-12-13 19:39:18,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:18,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:18,213 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 [2022-12-13 19:39:18,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:18,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:18,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:18,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:18,276 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 [2022-12-13 19:39:18,363 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3730 (_ BitVec 32)) (v_ArrVal_3728 (_ BitVec 32)) (v_ArrVal_3729 (_ BitVec 32)) (v_ArrVal_3731 (_ BitVec 32))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_ldv_kobject_put_#in~kobj#1.base| (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_ldv_kobject_put_#in~kobj#1.base|) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv12 32)) v_ArrVal_3731) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv13 32)) v_ArrVal_3729) (bvadd (_ bv14 32) |c_ldv_kobject_put_#in~kobj#1.offset|) v_ArrVal_3730) (bvadd |c_ldv_kobject_put_#in~kobj#1.offset| (_ bv15 32)) v_ArrVal_3728)))) is different from true [2022-12-13 19:39:18,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:18,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:18,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:18,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:39:18,428 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 [2022-12-13 19:39:18,569 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 [2022-12-13 19:39:18,759 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:39:18,759 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 [2022-12-13 19:39:18,906 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-12-13 19:39:18,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:39:21,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [332953039] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:39:21,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:39:21,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 47] total 53 [2022-12-13 19:39:21,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188411097] [2022-12-13 19:39:21,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:39:21,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-12-13 19:39:21,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:39:21,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-12-13 19:39:21,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=3450, Unknown=4, NotChecked=484, Total=4160 [2022-12-13 19:39:21,363 INFO L87 Difference]: Start difference. First operand 96 states and 97 transitions. Second operand has 53 states, 52 states have (on average 1.8269230769230769) internal successors, (95), 50 states have internal predecessors, (95), 4 states have call successors, (4), 3 states have call predecessors, (4), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-13 19:39:24,406 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_old(#memory_$Pointer$.base)| |c_LDV_INIT_LIST_HEAD_#in~list.base|)) (.cse1 (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) (and (exists ((v_ArrVal_3478 (_ BitVec 32)) (v_ArrVal_3721 (_ BitVec 32))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store .cse0 |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_3478) .cse1 v_ArrVal_3721)))) (exists ((v_ArrVal_3480 (_ BitVec 32)) (v_ArrVal_3478 (_ BitVec 32))) (= |c_#memory_$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_3478) .cse1 v_ArrVal_3480)))))) is different from true [2022-12-13 19:39:28,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:39:28,641 INFO L93 Difference]: Finished difference Result 92 states and 92 transitions. [2022-12-13 19:39:28,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-12-13 19:39:28,641 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 1.8269230769230769) internal successors, (95), 50 states have internal predecessors, (95), 4 states have call successors, (4), 3 states have call predecessors, (4), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 83 [2022-12-13 19:39:28,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:39:28,642 INFO L225 Difference]: With dead ends: 92 [2022-12-13 19:39:28,642 INFO L226 Difference]: Without dead ends: 91 [2022-12-13 19:39:28,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 137 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 1715 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=465, Invalid=5707, Unknown=10, NotChecked=790, Total=6972 [2022-12-13 19:39:28,643 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 194 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 338 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-12-13 19:39:28,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 587 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1574 Invalid, 0 Unknown, 338 Unchecked, 3.7s Time] [2022-12-13 19:39:28,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-12-13 19:39:28,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-12-13 19:39:28,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 82 states have (on average 1.0121951219512195) internal successors, (83), 82 states have internal predecessors, (83), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 19:39:28,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 91 transitions. [2022-12-13 19:39:28,645 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 91 transitions. Word has length 83 [2022-12-13 19:39:28,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:39:28,647 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 91 transitions. [2022-12-13 19:39:28,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 1.8269230769230769) internal successors, (95), 50 states have internal predecessors, (95), 4 states have call successors, (4), 3 states have call predecessors, (4), 5 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-13 19:39:28,648 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2022-12-13 19:39:28,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-12-13 19:39:28,648 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:39:28,648 INFO L195 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:39:28,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2022-12-13 19:39:28,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 (35)] Ended with exit code 0 [2022-12-13 19:39:29,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:39:29,050 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-13 19:39:29,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:39:29,052 INFO L85 PathProgramCache]: Analyzing trace with hash 102095468, now seen corresponding path program 1 times [2022-12-13 19:39:29,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:39:29,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [117349256] [2022-12-13 19:39:29,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:39:29,054 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 [2022-12-13 19:39:29,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:39:29,055 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 19:39:29,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 (37)] Waiting until timeout for monitored process [2022-12-13 19:39:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:39:29,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-13 19:39:29,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:39:29,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-12-13 19:39:30,108 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_entry_point_~kobj~2#1.base| (_ BitVec 32))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~kobj~2#1.base|) (_ bv0 1)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~kobj~2#1.base| (_ bv0 1))))) is different from true [2022-12-13 19:39:30,115 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-12-13 19:39:30,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:39:30,773 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_ldv_kobject_create_#t~ret34#1.base_39| (_ BitVec 32))) (or (= |c_ULTIMATE.start_main_old_#valid#1| (store |c_#valid| |v_ULTIMATE.start_ldv_kobject_create_#t~ret34#1.base_39| (_ bv0 1))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_ldv_kobject_create_#t~ret34#1.base_39|))))) is different from false [2022-12-13 19:39:30,775 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:39:30,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [117349256] [2022-12-13 19:39:30,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [117349256] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:39:30,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1759599102] [2022-12-13 19:39:30,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:39:30,776 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 19:39:30,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 19:39:30,777 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 19:39:30,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2022-12-13 19:39:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:39:31,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 19:39:31,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:39:31,950 INFO L321 Elim1Store]: treesize reduction 23, result has 32.4 percent of original size [2022-12-13 19:39:31,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 25 [2022-12-13 19:39:32,314 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-12-13 19:39:32,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:39:32,750 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_ldv_kobject_create_#t~ret34#1.base_42| (_ BitVec 32))) (or (= (store |c_#valid| |v_ULTIMATE.start_ldv_kobject_create_#t~ret34#1.base_42| (_ bv0 1)) |c_ULTIMATE.start_main_old_#valid#1|) (not (= (select |c_#valid| |v_ULTIMATE.start_ldv_kobject_create_#t~ret34#1.base_42|) (_ bv0 1))))) is different from false [2022-12-13 19:39:32,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1759599102] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:39:32,752 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:39:32,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2022-12-13 19:39:32,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666078410] [2022-12-13 19:39:32,752 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:39:32,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-13 19:39:32,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:39:32,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-13 19:39:32,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=625, Unknown=3, NotChecked=156, Total=870 [2022-12-13 19:39:32,753 INFO L87 Difference]: Start difference. First operand 91 states and 91 transitions. Second operand has 20 states, 18 states have (on average 5.333333333333333) internal successors, (96), 18 states have internal predecessors, (96), 6 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8) [2022-12-13 19:39:34,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:39:34,067 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2022-12-13 19:39:34,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 19:39:34,068 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 5.333333333333333) internal successors, (96), 18 states have internal predecessors, (96), 6 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8) Word has length 90 [2022-12-13 19:39:34,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:39:34,068 INFO L225 Difference]: With dead ends: 90 [2022-12-13 19:39:34,068 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 19:39:34,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 315 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 3 IntricatePredicates, 4 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=186, Invalid=1229, Unknown=3, NotChecked=222, Total=1640 [2022-12-13 19:39:34,069 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 137 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 19:39:34,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 359 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 366 Invalid, 0 Unknown, 65 Unchecked, 0.9s Time] [2022-12-13 19:39:34,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 19:39:34,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 19:39:34,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:39:34,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 19:39:34,070 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90 [2022-12-13 19:39:34,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:39:34,070 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 19:39:34,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 5.333333333333333) internal successors, (96), 18 states have internal predecessors, (96), 6 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 6 states have call successors, (8) [2022-12-13 19:39:34,071 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 19:39:34,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 19:39:34,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE (24 of 25 remaining) [2022-12-13 19:39:34,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (23 of 25 remaining) [2022-12-13 19:39:34,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 25 remaining) [2022-12-13 19:39:34,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 25 remaining) [2022-12-13 19:39:34,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 25 remaining) [2022-12-13 19:39:34,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 25 remaining) [2022-12-13 19:39:34,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 25 remaining) [2022-12-13 19:39:34,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 25 remaining) [2022-12-13 19:39:34,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (16 of 25 remaining) [2022-12-13 19:39:34,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 25 remaining) [2022-12-13 19:39:34,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 25 remaining) [2022-12-13 19:39:34,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 25 remaining) [2022-12-13 19:39:34,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 25 remaining) [2022-12-13 19:39:34,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 25 remaining) [2022-12-13 19:39:34,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 25 remaining) [2022-12-13 19:39:34,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 25 remaining) [2022-12-13 19:39:34,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 25 remaining) [2022-12-13 19:39:34,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 25 remaining) [2022-12-13 19:39:34,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 25 remaining) [2022-12-13 19:39:34,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr6ASSERT_VIOLATIONMEMORY_FREE (5 of 25 remaining) [2022-12-13 19:39:34,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr7ASSERT_VIOLATIONMEMORY_FREE (4 of 25 remaining) [2022-12-13 19:39:34,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr8ASSERT_VIOLATIONMEMORY_FREE (3 of 25 remaining) [2022-12-13 19:39:34,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr9ASSERT_VIOLATIONMEMORY_FREE (2 of 25 remaining) [2022-12-13 19:39:34,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr10ASSERT_VIOLATIONMEMORY_FREE (1 of 25 remaining) [2022-12-13 19:39:34,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_kobject_putErr11ASSERT_VIOLATIONMEMORY_FREE (0 of 25 remaining) [2022-12-13 19:39:34,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (38)] Forceful destruction successful, exit code 0 [2022-12-13 19:39:34,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 (37)] Ended with exit code 0 [2022-12-13 19:39:34,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 19:39:34,481 INFO L445 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, 1, 1, 1, 1, 1] [2022-12-13 19:39:34,483 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:39:34,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:39:34 BoogieIcfgContainer [2022-12-13 19:39:34,485 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:39:34,486 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:39:34,486 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:39:34,486 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:39:34,486 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:36:41" (3/4) ... [2022-12-13 19:39:34,488 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 19:39:34,493 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2022-12-13 19:39:34,494 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure LDV_INIT_LIST_HEAD [2022-12-13 19:39:34,494 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_kobject_put [2022-12-13 19:39:34,497 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2022-12-13 19:39:34,498 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-13 19:39:34,498 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 19:39:34,498 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 19:39:34,525 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 19:39:34,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:39:34,526 INFO L158 Benchmark]: Toolchain (without parser) took 174075.84ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 49.8MB in the beginning and 33.5MB in the end (delta: 16.2MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2022-12-13 19:39:34,526 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 73.4MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:39:34,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 482.67ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 49.8MB in the beginning and 59.6MB in the end (delta: -9.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-13 19:39:34,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.81ms. Allocated memory is still 88.1MB. Free memory was 59.6MB in the beginning and 56.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 19:39:34,527 INFO L158 Benchmark]: Boogie Preprocessor took 24.89ms. Allocated memory is still 88.1MB. Free memory was 56.9MB in the beginning and 54.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:39:34,527 INFO L158 Benchmark]: RCFGBuilder took 528.03ms. Allocated memory is still 88.1MB. Free memory was 54.3MB in the beginning and 29.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 19:39:34,527 INFO L158 Benchmark]: TraceAbstraction took 172958.93ms. Allocated memory is still 88.1MB. Free memory was 28.1MB in the beginning and 37.9MB in the end (delta: -9.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:39:34,527 INFO L158 Benchmark]: Witness Printer took 40.10ms. Allocated memory is still 88.1MB. Free memory was 37.9MB in the beginning and 33.5MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 19:39:34,527 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 73.4MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 482.67ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 49.8MB in the beginning and 59.6MB in the end (delta: -9.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.81ms. Allocated memory is still 88.1MB. Free memory was 59.6MB in the beginning and 56.9MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.89ms. Allocated memory is still 88.1MB. Free memory was 56.9MB in the beginning and 54.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 528.03ms. Allocated memory is still 88.1MB. Free memory was 54.3MB in the beginning and 29.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 172958.93ms. Allocated memory is still 88.1MB. Free memory was 28.1MB in the beginning and 37.9MB in the end (delta: -9.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 40.10ms. Allocated memory is still 88.1MB. Free memory was 37.9MB in the beginning and 33.5MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 770]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 700]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 700]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 700]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 702]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 702]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 702]: free always succeeds For all program executions holds that free always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 92 locations, 25 error locations. Started 1 CEGAR loops. OverallTime: 172.9s, OverallIterations: 33, TraceHistogramMax: 16, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 75.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3053 SdHoareTripleChecker+Valid, 17.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3030 mSDsluCounter, 15930 SdHoareTripleChecker+Invalid, 15.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1045 IncrementalHoareTripleChecker+Unchecked, 13450 mSDsCounter, 283 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10091 IncrementalHoareTripleChecker+Invalid, 11419 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 283 mSolverCounterUnsat, 2480 mSDtfsCounter, 10091 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2459 GetRequests, 1780 SyntacticMatches, 19 SemanticMatches, 660 ConstructedPredicates, 17 IntricatePredicates, 4 DeprecatedPredicates, 6906 ImplicationChecksByTransitivity, 121.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=21, InterpolantAutomatonStates: 445, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 33 MinimizatonAttempts, 364 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 6.8s SatisfiabilityAnalysisTime, 77.7s InterpolantComputationTime, 1756 NumberOfCodeBlocks, 1726 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 1925 ConstructedInterpolants, 225 QuantifiedInterpolants, 20935 SizeOfPredicates, 866 NumberOfNonLiveVariables, 11205 ConjunctsInSsa, 1496 ConjunctsInUnsatCore, 42 InterpolantComputations, 24 PerfectInterpolantSequences, 2959/3841 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 - AllSpecificationsHoldResult: All specifications hold 25 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 19:39:34,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73913fb-1717-448b-83e0-942e1b06049c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE