./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14e3e63e231fa0c862b0912d52fb4325a0198eb4d9a43387e9996f85700980cb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 11:19:02,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:19:02,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:19:02,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:19:02,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:19:02,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:19:02,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:19:02,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:19:02,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:19:02,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:19:02,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:19:02,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:19:02,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:19:02,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:19:02,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:19:02,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:19:02,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:19:02,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:19:02,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:19:02,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:19:02,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:19:02,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:19:02,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:19:02,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:19:02,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:19:02,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:19:02,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:19:02,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:19:02,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:19:02,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:19:02,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:19:02,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:19:02,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:19:02,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:19:02,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:19:02,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:19:02,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:19:02,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:19:02,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:19:02,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:19:02,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:19:02,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 11:19:02,306 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:19:02,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:19:02,306 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:19:02,307 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:19:02,307 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:19:02,307 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:19:02,307 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:19:02,308 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:19:02,308 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:19:02,308 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:19:02,308 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:19:02,308 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:19:02,308 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:19:02,309 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:19:02,309 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:19:02,309 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:19:02,309 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:19:02,309 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:19:02,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 11:19:02,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 11:19:02,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:19:02,310 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:19:02,311 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:19:02,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:19:02,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:19:02,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:19:02,311 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 11:19:02,311 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 11:19:02,311 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 11:19:02,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:19:02,312 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 11:19:02,312 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:19:02,312 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:19:02,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:19:02,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:19:02,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:19:02,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:19:02,313 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:19:02,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:19:02,313 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:19:02,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:19:02,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:19:02,314 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14e3e63e231fa0c862b0912d52fb4325a0198eb4d9a43387e9996f85700980cb [2022-12-14 11:19:02,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:19:02,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:19:02,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:19:02,506 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:19:02,506 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:19:02,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i [2022-12-14 11:19:05,034 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:19:05,260 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:19:05,260 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i [2022-12-14 11:19:05,271 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/data/18df791d0/21c0158de8e3453397bac68fbf441679/FLAG4ff1e9745 [2022-12-14 11:19:05,591 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/data/18df791d0/21c0158de8e3453397bac68fbf441679 [2022-12-14 11:19:05,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:19:05,594 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:19:05,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:19:05,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:19:05,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:19:05,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:19:05" (1/1) ... [2022-12-14 11:19:05,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1277ba90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:05, skipping insertion in model container [2022-12-14 11:19:05,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:19:05" (1/1) ... [2022-12-14 11:19:05,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:19:05,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:19:05,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:19:05,868 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) [2022-12-14 11:19:05,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@521f15a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:05, skipping insertion in model container [2022-12-14 11:19:05,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:19:05,869 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-14 11:19:05,871 INFO L158 Benchmark]: Toolchain (without parser) took 276.50ms. Allocated memory is still 136.3MB. Free memory was 104.6MB in the beginning and 90.6MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 11:19:05,872 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:19:05,872 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.89ms. Allocated memory is still 136.3MB. Free memory was 104.0MB in the beginning and 90.6MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 11:19:05,874 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.89ms. Allocated memory is still 136.3MB. Free memory was 104.0MB in the beginning and 90.6MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14e3e63e231fa0c862b0912d52fb4325a0198eb4d9a43387e9996f85700980cb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 11:19:07,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:19:07,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:19:07,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:19:07,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:19:07,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:19:07,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:19:07,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:19:07,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:19:07,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:19:07,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:19:07,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:19:07,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:19:07,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:19:07,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:19:07,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:19:07,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:19:07,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:19:07,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:19:07,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:19:07,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:19:07,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:19:07,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:19:07,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:19:07,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:19:07,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:19:07,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:19:07,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:19:07,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:19:07,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:19:07,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:19:07,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:19:07,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:19:07,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:19:07,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:19:07,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:19:07,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:19:07,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:19:07,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:19:07,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:19:07,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:19:07,462 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 11:19:07,486 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:19:07,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:19:07,487 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:19:07,487 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:19:07,487 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:19:07,487 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:19:07,487 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:19:07,488 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:19:07,488 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:19:07,488 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:19:07,488 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:19:07,488 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:19:07,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 11:19:07,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 11:19:07,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:19:07,489 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:19:07,489 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:19:07,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:19:07,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:19:07,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:19:07,489 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 11:19:07,489 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 11:19:07,489 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 11:19:07,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:19:07,490 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 11:19:07,490 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 11:19:07,490 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 11:19:07,490 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:19:07,490 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:19:07,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:19:07,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 11:19:07,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:19:07,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:19:07,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:19:07,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:19:07,491 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 11:19:07,491 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:07,491 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:19:07,491 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 11:19:07,491 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14e3e63e231fa0c862b0912d52fb4325a0198eb4d9a43387e9996f85700980cb [2022-12-14 11:19:07,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:19:07,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:19:07,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:19:07,736 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:19:07,736 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:19:07,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i [2022-12-14 11:19:10,296 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:19:10,497 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:19:10,498 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-2.i [2022-12-14 11:19:10,510 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/data/963ddd902/16dd3799c7be40679a18318c5c9d696c/FLAG6bfd52986 [2022-12-14 11:19:10,522 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/data/963ddd902/16dd3799c7be40679a18318c5c9d696c [2022-12-14 11:19:10,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:19:10,525 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:19:10,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:19:10,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:19:10,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:19:10,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:19:10" (1/1) ... [2022-12-14 11:19:10,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48eb47e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:10, skipping insertion in model container [2022-12-14 11:19:10,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:19:10" (1/1) ... [2022-12-14 11:19:10,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:19:10,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:19:10,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:19:10,872 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 11:19:10,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:19:10,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:19:10,907 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:19:10,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:19:10,959 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:19:10,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:10 WrapperNode [2022-12-14 11:19:10,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:19:10,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:19:10,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:19:10,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:19:10,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:10" (1/1) ... [2022-12-14 11:19:10,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:10" (1/1) ... [2022-12-14 11:19:11,005 INFO L138 Inliner]: procedures = 165, calls = 70, calls flagged for inlining = 22, calls inlined = 14, statements flattened = 100 [2022-12-14 11:19:11,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:19:11,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:19:11,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:19:11,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:19:11,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:10" (1/1) ... [2022-12-14 11:19:11,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:10" (1/1) ... [2022-12-14 11:19:11,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:10" (1/1) ... [2022-12-14 11:19:11,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:10" (1/1) ... [2022-12-14 11:19:11,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:10" (1/1) ... [2022-12-14 11:19:11,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:10" (1/1) ... [2022-12-14 11:19:11,036 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:10" (1/1) ... [2022-12-14 11:19:11,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:10" (1/1) ... [2022-12-14 11:19:11,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:19:11,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:19:11,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:19:11,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:19:11,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:10" (1/1) ... [2022-12-14 11:19:11,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:19:11,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:19:11,072 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:19:11,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:19:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 11:19:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2022-12-14 11:19:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2022-12-14 11:19:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 11:19:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 11:19:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2022-12-14 11:19:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2022-12-14 11:19:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 11:19:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:19:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 11:19:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 11:19:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 11:19:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:19:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 11:19:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:19:11,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:19:11,214 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:19:11,215 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:19:11,534 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:19:11,541 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:19:11,542 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 11:19:11,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:19:11 BoogieIcfgContainer [2022-12-14 11:19:11,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:19:11,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:19:11,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:19:11,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:19:11,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:19:10" (1/3) ... [2022-12-14 11:19:11,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691ce698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:19:11, skipping insertion in model container [2022-12-14 11:19:11,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:19:10" (2/3) ... [2022-12-14 11:19:11,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691ce698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:19:11, skipping insertion in model container [2022-12-14 11:19:11,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:19:11" (3/3) ... [2022-12-14 11:19:11,552 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test22_3-2.i [2022-12-14 11:19:11,566 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:19:11,567 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2022-12-14 11:19:11,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:19:11,603 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2a0b0968, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:19:11,603 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-12-14 11:19:11,606 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 48 states have (on average 1.6041666666666667) internal successors, (77), 70 states have internal predecessors, (77), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 11:19:11,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 11:19:11,612 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:11,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:11,612 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:11,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:11,616 INFO L85 PathProgramCache]: Analyzing trace with hash 265003773, now seen corresponding path program 1 times [2022-12-14 11:19:11,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:11,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915121979] [2022-12-14 11:19:11,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:11,629 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 [2022-12-14 11:19:11,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:11,630 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:11,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:11,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 11:19:11,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:11,768 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 [2022-12-14 11:19:11,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:11,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:11,814 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:11,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915121979] [2022-12-14 11:19:11,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [915121979] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:11,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:19:11,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:19:11,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490060806] [2022-12-14 11:19:11,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:11,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:19:11,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:11,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:19:11,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:19:11,857 INFO L87 Difference]: Start difference. First operand has 77 states, 48 states have (on average 1.6041666666666667) internal successors, (77), 70 states have internal predecessors, (77), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:19:12,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:12,125 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2022-12-14 11:19:12,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 11:19:12,127 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 [2022-12-14 11:19:12,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:12,133 INFO L225 Difference]: With dead ends: 101 [2022-12-14 11:19:12,134 INFO L226 Difference]: Without dead ends: 99 [2022-12-14 11:19:12,135 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 [2022-12-14 11:19:12,137 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 52 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:12,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 283 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 11:19:12,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-12-14 11:19:12,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 80. [2022-12-14 11:19:12,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 51 states have (on average 1.5686274509803921) internal successors, (80), 72 states have internal predecessors, (80), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-14 11:19:12,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2022-12-14 11:19:12,168 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 10 [2022-12-14 11:19:12,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:12,168 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2022-12-14 11:19:12,168 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) [2022-12-14 11:19:12,168 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2022-12-14 11:19:12,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 11:19:12,168 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:12,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:12,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:12,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:19:12,371 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:12,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:12,372 INFO L85 PathProgramCache]: Analyzing trace with hash 293632924, now seen corresponding path program 1 times [2022-12-14 11:19:12,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:12,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63496985] [2022-12-14 11:19:12,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:12,375 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 [2022-12-14 11:19:12,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:12,378 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:12,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:12,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:12,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:12,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:12,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:12,577 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:12,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63496985] [2022-12-14 11:19:12,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63496985] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:12,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:19:12,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:19:12,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146316571] [2022-12-14 11:19:12,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:12,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:19:12,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:12,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:19:12,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:19:12,580 INFO L87 Difference]: Start difference. First operand 80 states and 89 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:19:12,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:12,606 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2022-12-14 11:19:12,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:19:12,607 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 [2022-12-14 11:19:12,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:12,608 INFO L225 Difference]: With dead ends: 84 [2022-12-14 11:19:12,608 INFO L226 Difference]: Without dead ends: 84 [2022-12-14 11:19:12,608 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 [2022-12-14 11:19:12,610 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 3 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:12,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 329 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:19:12,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-12-14 11:19:12,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 78. [2022-12-14 11:19:12,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 50 states have (on average 1.54) internal successors, (77), 70 states have internal predecessors, (77), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-14 11:19:12,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2022-12-14 11:19:12,618 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 10 [2022-12-14 11:19:12,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:12,618 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2022-12-14 11:19:12,619 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) [2022-12-14 11:19:12,619 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2022-12-14 11:19:12,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 11:19:12,619 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:12,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:12,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:12,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:19:12,821 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:12,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:12,823 INFO L85 PathProgramCache]: Analyzing trace with hash -374817580, now seen corresponding path program 1 times [2022-12-14 11:19:12,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:12,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1905236938] [2022-12-14 11:19:12,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:12,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:19:12,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:12,830 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:12,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:12,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:12,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 11:19:12,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:12,982 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 [2022-12-14 11:19:13,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:13,069 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:13,069 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:13,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1905236938] [2022-12-14 11:19:13,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1905236938] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:13,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:19:13,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 11:19:13,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345783633] [2022-12-14 11:19:13,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:13,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 11:19:13,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:13,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 11:19:13,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 11:19:13,071 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:19:13,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:13,377 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2022-12-14 11:19:13,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 11:19:13,378 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 [2022-12-14 11:19:13,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:13,380 INFO L225 Difference]: With dead ends: 89 [2022-12-14 11:19:13,380 INFO L226 Difference]: Without dead ends: 89 [2022-12-14 11:19:13,380 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 [2022-12-14 11:19:13,382 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 41 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:13,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 365 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 11:19:13,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-12-14 11:19:13,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 77. [2022-12-14 11:19:13,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 50 states have (on average 1.52) internal successors, (76), 69 states have internal predecessors, (76), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-14 11:19:13,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2022-12-14 11:19:13,392 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 11 [2022-12-14 11:19:13,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:13,392 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2022-12-14 11:19:13,392 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) [2022-12-14 11:19:13,392 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2022-12-14 11:19:13,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 11:19:13,393 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:13,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:13,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:13,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:19:13,594 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:13,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:13,596 INFO L85 PathProgramCache]: Analyzing trace with hash 700915977, now seen corresponding path program 1 times [2022-12-14 11:19:13,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:13,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85195873] [2022-12-14 11:19:13,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:13,598 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 [2022-12-14 11:19:13,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:13,600 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:13,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:13,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 11:19:13,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:13,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:13,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:13,796 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:13,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85195873] [2022-12-14 11:19:13,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85195873] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:13,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:19:13,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:19:13,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915566966] [2022-12-14 11:19:13,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:13,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:19:13,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:13,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:19:13,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:19:13,798 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:19:13,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:13,822 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2022-12-14 11:19:13,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:19:13,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-12-14 11:19:13,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:13,824 INFO L225 Difference]: With dead ends: 83 [2022-12-14 11:19:13,824 INFO L226 Difference]: Without dead ends: 83 [2022-12-14 11:19:13,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:19:13,825 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 19 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:13,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 311 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:19:13,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-12-14 11:19:13,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 77. [2022-12-14 11:19:13,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 50 states have (on average 1.5) internal successors, (75), 69 states have internal predecessors, (75), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-14 11:19:13,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2022-12-14 11:19:13,829 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 14 [2022-12-14 11:19:13,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:13,829 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2022-12-14 11:19:13,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:19:13,829 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2022-12-14 11:19:13,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 11:19:13,830 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:13,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:13,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:14,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:19:14,031 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:14,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:14,031 INFO L85 PathProgramCache]: Analyzing trace with hash 504402472, now seen corresponding path program 1 times [2022-12-14 11:19:14,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:14,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552047005] [2022-12-14 11:19:14,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:14,032 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 [2022-12-14 11:19:14,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:14,033 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:14,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:14,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 11:19:14,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:14,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:14,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:14,182 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:14,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552047005] [2022-12-14 11:19:14,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552047005] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:14,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:19:14,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 11:19:14,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772947650] [2022-12-14 11:19:14,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:14,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:19:14,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:14,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:19:14,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:19:14,184 INFO L87 Difference]: Start difference. First operand 77 states and 84 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:19:14,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:14,245 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2022-12-14 11:19:14,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 11:19:14,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-12-14 11:19:14,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:14,246 INFO L225 Difference]: With dead ends: 89 [2022-12-14 11:19:14,246 INFO L226 Difference]: Without dead ends: 89 [2022-12-14 11:19:14,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 11:19:14,247 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 11 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:14,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 378 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:19:14,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-12-14 11:19:14,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 84. [2022-12-14 11:19:14,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 54 states have (on average 1.462962962962963) internal successors, (79), 74 states have internal predecessors, (79), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-12-14 11:19:14,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2022-12-14 11:19:14,255 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 14 [2022-12-14 11:19:14,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:14,255 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2022-12-14 11:19:14,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:19:14,255 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2022-12-14 11:19:14,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 11:19:14,256 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:14,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:14,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:14,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:19:14,457 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:14,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:14,458 INFO L85 PathProgramCache]: Analyzing trace with hash 458362539, now seen corresponding path program 1 times [2022-12-14 11:19:14,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:14,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759504931] [2022-12-14 11:19:14,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:14,461 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 [2022-12-14 11:19:14,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:14,463 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:14,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:14,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:19:14,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:14,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:14,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:14,635 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:14,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759504931] [2022-12-14 11:19:14,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [759504931] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:14,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:19:14,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:19:14,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054234890] [2022-12-14 11:19:14,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:14,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:19:14,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:14,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:19:14,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:19:14,636 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:19:14,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:14,655 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2022-12-14 11:19:14,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:19:14,655 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 [2022-12-14 11:19:14,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:14,656 INFO L225 Difference]: With dead ends: 88 [2022-12-14 11:19:14,656 INFO L226 Difference]: Without dead ends: 88 [2022-12-14 11:19:14,656 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 [2022-12-14 11:19:14,657 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 17 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:14,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 232 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:19:14,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-12-14 11:19:14,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2022-12-14 11:19:14,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 75 states have internal predecessors, (80), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-12-14 11:19:14,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2022-12-14 11:19:14,661 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 16 [2022-12-14 11:19:14,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:14,661 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2022-12-14 11:19:14,661 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) [2022-12-14 11:19:14,661 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2022-12-14 11:19:14,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 11:19:14,661 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:14,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:14,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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)] Ended with exit code 0 [2022-12-14 11:19:14,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:19:14,863 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:14,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:14,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1265077694, now seen corresponding path program 1 times [2022-12-14 11:19:14,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:14,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006667936] [2022-12-14 11:19:14,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:14,866 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 [2022-12-14 11:19:14,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:14,869 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:14,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:14,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:14,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 11:19:14,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:15,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:15,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:15,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:15,068 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:15,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006667936] [2022-12-14 11:19:15,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006667936] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:15,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [163022883] [2022-12-14 11:19:15,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:15,069 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:15,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 11:19:15,070 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 11:19:15,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-12-14 11:19:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:15,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 11:19:15,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:15,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:15,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:15,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:15,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [163022883] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:15,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752327291] [2022-12-14 11:19:15,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:15,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:15,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:19:15,189 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:19:15,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 11:19:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:15,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 11:19:15,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:15,257 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 [2022-12-14 11:19:15,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 11:19:15,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:15,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752327291] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:15,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-12-14 11:19:15,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5, 5, 5, 5] total 14 [2022-12-14 11:19:15,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111625156] [2022-12-14 11:19:15,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:15,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 11:19:15,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:15,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 11:19:15,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-12-14 11:19:15,334 INFO L87 Difference]: Start difference. First operand 85 states and 93 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) [2022-12-14 11:19:15,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:15,570 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2022-12-14 11:19:15,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 11:19:15,571 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 17 [2022-12-14 11:19:15,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:15,572 INFO L225 Difference]: With dead ends: 91 [2022-12-14 11:19:15,572 INFO L226 Difference]: Without dead ends: 91 [2022-12-14 11:19:15,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2022-12-14 11:19:15,573 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 35 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:15,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 370 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 11:19:15,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-12-14 11:19:15,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 84. [2022-12-14 11:19:15,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 74 states have internal predecessors, (79), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-12-14 11:19:15,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2022-12-14 11:19:15,577 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 17 [2022-12-14 11:19:15,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:15,577 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2022-12-14 11:19:15,577 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) [2022-12-14 11:19:15,577 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2022-12-14 11:19:15,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 11:19:15,578 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:15,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:15,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:15,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2022-12-14 11:19:15,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-14 11:19:16,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:16,181 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:16,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:16,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1265077695, now seen corresponding path program 1 times [2022-12-14 11:19:16,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:16,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87874711] [2022-12-14 11:19:16,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:16,184 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 [2022-12-14 11:19:16,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:16,187 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:16,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:16,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 11:19:16,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:16,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:16,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:16,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:16,309 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:16,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87874711] [2022-12-14 11:19:16,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87874711] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:16,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1034819745] [2022-12-14 11:19:16,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:16,309 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:16,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 11:19:16,310 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 11:19:16,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2022-12-14 11:19:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:16,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 11:19:16,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:16,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:16,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:16,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:16,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1034819745] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:16,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363621571] [2022-12-14 11:19:16,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:16,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:16,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:19:16,421 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:19:16,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 11:19:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:16,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 11:19:16,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:16,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:16,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:16,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:16,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363621571] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:16,504 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 11:19:16,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2022-12-14 11:19:16,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407899226] [2022-12-14 11:19:16,505 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 11:19:16,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 11:19:16,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:16,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 11:19:16,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 11:19:16,506 INFO L87 Difference]: Start difference. First operand 84 states and 92 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) [2022-12-14 11:19:16,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:16,569 INFO L93 Difference]: Finished difference Result 90 states and 97 transitions. [2022-12-14 11:19:16,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 11:19:16,570 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 [2022-12-14 11:19:16,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:16,571 INFO L225 Difference]: With dead ends: 90 [2022-12-14 11:19:16,571 INFO L226 Difference]: Without dead ends: 90 [2022-12-14 11:19:16,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-12-14 11:19:16,572 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 36 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 310 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 [2022-12-14 11:19:16,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 310 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:19:16,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-12-14 11:19:16,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 87. [2022-12-14 11:19:16,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 77 states have internal predecessors, (82), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-12-14 11:19:16,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2022-12-14 11:19:16,577 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 17 [2022-12-14 11:19:16,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:16,577 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2022-12-14 11:19:16,577 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) [2022-12-14 11:19:16,578 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2022-12-14 11:19:16,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 11:19:16,578 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:16,578 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:16,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:16,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2022-12-14 11:19:16,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-12-14 11:19:17,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:17,180 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:17,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:17,182 INFO L85 PathProgramCache]: Analyzing trace with hash 876788588, now seen corresponding path program 2 times [2022-12-14 11:19:17,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:17,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365651279] [2022-12-14 11:19:17,184 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 11:19:17,185 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 [2022-12-14 11:19:17,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:17,186 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:17,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:17,231 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-14 11:19:17,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 11:19:17,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 11:19:17,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:17,250 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 [2022-12-14 11:19:17,359 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 11:19:17,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:17,359 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:17,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365651279] [2022-12-14 11:19:17,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365651279] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:17,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:19:17,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 11:19:17,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845821166] [2022-12-14 11:19:17,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:17,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 11:19:17,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:17,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 11:19:17,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 11:19:17,361 INFO L87 Difference]: Start difference. First operand 87 states and 95 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) [2022-12-14 11:19:17,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:17,680 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2022-12-14 11:19:17,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 11:19:17,681 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 20 [2022-12-14 11:19:17,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:17,682 INFO L225 Difference]: With dead ends: 104 [2022-12-14 11:19:17,682 INFO L226 Difference]: Without dead ends: 104 [2022-12-14 11:19:17,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-12-14 11:19:17,682 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 45 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:17,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 500 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 11:19:17,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-12-14 11:19:17,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 86. [2022-12-14 11:19:17,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 58 states have (on average 1.396551724137931) internal successors, (81), 76 states have internal predecessors, (81), 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) [2022-12-14 11:19:17,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2022-12-14 11:19:17,688 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 20 [2022-12-14 11:19:17,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:17,688 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2022-12-14 11:19:17,688 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) [2022-12-14 11:19:17,688 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2022-12-14 11:19:17,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 11:19:17,689 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:17,689 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:17,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:17,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:19:17,890 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:17,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:17,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1295948282, now seen corresponding path program 1 times [2022-12-14 11:19:17,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:17,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785125544] [2022-12-14 11:19:17,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:17,892 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 [2022-12-14 11:19:17,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:17,895 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:17,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:17,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 11:19:17,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:17,994 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 11:19:17,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:17,994 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:17,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785125544] [2022-12-14 11:19:17,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785125544] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:17,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:19:17,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:19:17,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435905961] [2022-12-14 11:19:17,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:17,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:19:17,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:17,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:19:17,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:19:17,995 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 11:19:18,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:18,095 INFO L93 Difference]: Finished difference Result 92 states and 100 transitions. [2022-12-14 11:19:18,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:19:18,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2022-12-14 11:19:18,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:18,096 INFO L225 Difference]: With dead ends: 92 [2022-12-14 11:19:18,096 INFO L226 Difference]: Without dead ends: 79 [2022-12-14 11:19:18,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:19:18,097 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 31 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:18,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 141 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:19:18,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-12-14 11:19:18,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 75. [2022-12-14 11:19:18,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 68 states have internal predecessors, (73), 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) [2022-12-14 11:19:18,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 81 transitions. [2022-12-14 11:19:18,100 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 81 transitions. Word has length 22 [2022-12-14 11:19:18,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:18,100 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 81 transitions. [2022-12-14 11:19:18,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 11:19:18,100 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 81 transitions. [2022-12-14 11:19:18,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 11:19:18,100 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:18,101 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:18,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-12-14 11:19:18,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:19:18,301 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:18,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:18,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1806179555, now seen corresponding path program 1 times [2022-12-14 11:19:18,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:18,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206490951] [2022-12-14 11:19:18,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:18,302 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 [2022-12-14 11:19:18,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:18,304 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:18,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:18,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:18,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:18,438 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:18,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:18,624 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:18,624 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:18,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206490951] [2022-12-14 11:19:18,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206490951] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:18,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [347314300] [2022-12-14 11:19:18,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:18,624 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:18,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 11:19:18,625 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 11:19:18,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2022-12-14 11:19:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:18,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:18,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:18,769 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:18,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:18,795 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:18,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [347314300] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:18,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194695987] [2022-12-14 11:19:18,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:18,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:18,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:19:18,796 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:19:18,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-12-14 11:19:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:18,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 11:19:18,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:18,883 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 [2022-12-14 11:19:19,017 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 11:19:19,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:19,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194695987] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:19,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-12-14 11:19:19,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8, 8, 8] total 21 [2022-12-14 11:19:19,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074035034] [2022-12-14 11:19:19,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:19,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 11:19:19,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:19,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 11:19:19,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:19:19,019 INFO L87 Difference]: Start difference. First operand 75 states and 81 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) [2022-12-14 11:19:19,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:19,324 INFO L93 Difference]: Finished difference Result 76 states and 83 transitions. [2022-12-14 11:19:19,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 11:19:19,324 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 24 [2022-12-14 11:19:19,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:19,325 INFO L225 Difference]: With dead ends: 76 [2022-12-14 11:19:19,325 INFO L226 Difference]: Without dead ends: 76 [2022-12-14 11:19:19,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:19:19,326 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 34 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:19,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 341 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 11:19:19,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-12-14 11:19:19,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2022-12-14 11:19:19,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 51 states have (on average 1.392156862745098) internal successors, (71), 66 states have internal predecessors, (71), 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) [2022-12-14 11:19:19,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 79 transitions. [2022-12-14 11:19:19,330 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 79 transitions. Word has length 24 [2022-12-14 11:19:19,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:19,331 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 79 transitions. [2022-12-14 11:19:19,331 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) [2022-12-14 11:19:19,331 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 79 transitions. [2022-12-14 11:19:19,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 11:19:19,332 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:19,332 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:19,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:19,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-12-14 11:19:19,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2022-12-14 11:19:19,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:19,934 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:19,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:19,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1806179554, now seen corresponding path program 1 times [2022-12-14 11:19:19,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:19,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748011288] [2022-12-14 11:19:19,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:19,936 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 [2022-12-14 11:19:19,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:19,939 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:19,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:20,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:20,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:20,144 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:20,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:20,283 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:20,284 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:20,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748011288] [2022-12-14 11:19:20,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748011288] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:20,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1208413674] [2022-12-14 11:19:20,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:20,284 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:20,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 11:19:20,285 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 11:19:20,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-12-14 11:19:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:20,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:20,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:20,421 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:20,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:20,440 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:20,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1208413674] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:20,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735630026] [2022-12-14 11:19:20,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:20,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:20,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:19:20,441 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:19:20,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-12-14 11:19:20,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:20,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-14 11:19:20,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:20,544 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 [2022-12-14 11:19:20,767 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 11:19:20,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:20,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735630026] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:20,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-12-14 11:19:20,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8, 8, 8] total 22 [2022-12-14 11:19:20,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356286527] [2022-12-14 11:19:20,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:20,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 11:19:20,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:20,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 11:19:20,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2022-12-14 11:19:20,769 INFO L87 Difference]: Start difference. First operand 73 states and 79 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) [2022-12-14 11:19:21,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:21,166 INFO L93 Difference]: Finished difference Result 78 states and 85 transitions. [2022-12-14 11:19:21,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 11:19:21,167 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 24 [2022-12-14 11:19:21,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:21,167 INFO L225 Difference]: With dead ends: 78 [2022-12-14 11:19:21,167 INFO L226 Difference]: Without dead ends: 78 [2022-12-14 11:19:21,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2022-12-14 11:19:21,168 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 38 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:21,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 429 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 11:19:21,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-12-14 11:19:21,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 71. [2022-12-14 11:19:21,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 64 states have internal predecessors, (69), 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) [2022-12-14 11:19:21,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 77 transitions. [2022-12-14 11:19:21,171 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 77 transitions. Word has length 24 [2022-12-14 11:19:21,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:21,171 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 77 transitions. [2022-12-14 11:19:21,171 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) [2022-12-14 11:19:21,171 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 77 transitions. [2022-12-14 11:19:21,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 11:19:21,171 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:21,171 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:21,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:21,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2022-12-14 11:19:21,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-12-14 11:19:21,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:21,774 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:21,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:21,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1042202481, now seen corresponding path program 1 times [2022-12-14 11:19:21,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:21,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [860781325] [2022-12-14 11:19:21,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:21,778 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 [2022-12-14 11:19:21,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:21,781 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:21,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:21,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:21,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:21,903 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:21,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:22,029 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:22,029 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:22,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [860781325] [2022-12-14 11:19:22,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [860781325] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:22,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1166166970] [2022-12-14 11:19:22,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:22,029 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:22,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 11:19:22,030 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 11:19:22,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2022-12-14 11:19:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:22,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 11:19:22,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:22,221 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 11:19:22,221 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:22,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1166166970] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:22,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 11:19:22,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8] total 18 [2022-12-14 11:19:22,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237077653] [2022-12-14 11:19:22,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:22,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:19:22,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:22,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:19:22,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-12-14 11:19:22,222 INFO L87 Difference]: Start difference. First operand 71 states and 77 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:19:22,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:22,259 INFO L93 Difference]: Finished difference Result 71 states and 76 transitions. [2022-12-14 11:19:22,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:19:22,259 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-12-14 11:19:22,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:22,260 INFO L225 Difference]: With dead ends: 71 [2022-12-14 11:19:22,260 INFO L226 Difference]: Without dead ends: 71 [2022-12-14 11:19:22,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2022-12-14 11:19:22,261 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 21 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:22,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 303 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:19:22,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-12-14 11:19:22,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-12-14 11:19:22,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 64 states have internal predecessors, (68), 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) [2022-12-14 11:19:22,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 76 transitions. [2022-12-14 11:19:22,263 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 76 transitions. Word has length 24 [2022-12-14 11:19:22,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:22,263 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 76 transitions. [2022-12-14 11:19:22,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:19:22,264 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 76 transitions. [2022-12-14 11:19:22,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 11:19:22,264 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:22,264 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:22,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2022-12-14 11:19:22,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2022-12-14 11:19:22,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:19:22,665 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:22,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:22,665 INFO L85 PathProgramCache]: Analyzing trace with hash -2033494883, now seen corresponding path program 1 times [2022-12-14 11:19:22,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:22,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [473472975] [2022-12-14 11:19:22,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:22,666 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 [2022-12-14 11:19:22,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:22,667 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:22,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:22,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:22,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:22,825 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:22,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:22,967 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:22,967 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:22,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [473472975] [2022-12-14 11:19:22,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [473472975] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:22,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1686415295] [2022-12-14 11:19:22,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:22,967 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:22,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 11:19:22,968 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 11:19:22,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2022-12-14 11:19:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:23,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 11:19:23,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:23,144 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 11:19:23,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:23,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1686415295] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:23,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 11:19:23,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 8] total 19 [2022-12-14 11:19:23,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842971362] [2022-12-14 11:19:23,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:23,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 11:19:23,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:23,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 11:19:23,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-12-14 11:19:23,145 INFO L87 Difference]: Start difference. First operand 71 states and 76 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:19:23,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:23,204 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2022-12-14 11:19:23,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 11:19:23,204 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-12-14 11:19:23,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:23,205 INFO L225 Difference]: With dead ends: 71 [2022-12-14 11:19:23,205 INFO L226 Difference]: Without dead ends: 71 [2022-12-14 11:19:23,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:19:23,206 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 27 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:23,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 348 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:19:23,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-12-14 11:19:23,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-12-14 11:19:23,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 63 states have internal predecessors, (67), 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) [2022-12-14 11:19:23,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2022-12-14 11:19:23,208 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 26 [2022-12-14 11:19:23,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:23,208 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2022-12-14 11:19:23,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 11:19:23,208 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2022-12-14 11:19:23,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 11:19:23,209 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:23,209 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:23,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:23,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2022-12-14 11:19:23,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:23,611 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:23,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:23,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1321183462, now seen corresponding path program 1 times [2022-12-14 11:19:23,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:23,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89000128] [2022-12-14 11:19:23,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:23,614 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 [2022-12-14 11:19:23,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:23,617 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:23,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:23,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:23,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:23,773 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:23,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:23,904 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:23,904 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:23,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89000128] [2022-12-14 11:19:23,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89000128] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:23,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1261428338] [2022-12-14 11:19:23,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:23,904 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:23,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 11:19:23,905 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 11:19:23,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2022-12-14 11:19:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:24,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:24,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:24,115 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:24,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:24,135 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:24,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1261428338] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:24,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590169699] [2022-12-14 11:19:24,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:24,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:24,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:19:24,136 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:19:24,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-12-14 11:19:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:24,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 11:19:24,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:24,225 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 [2022-12-14 11:19:24,451 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 11:19:24,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:24,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590169699] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:24,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-12-14 11:19:24,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8, 8, 8, 8] total 23 [2022-12-14 11:19:24,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316123227] [2022-12-14 11:19:24,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:24,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 11:19:24,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:24,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 11:19:24,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2022-12-14 11:19:24,453 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 11:19:24,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:24,914 INFO L93 Difference]: Finished difference Result 107 states and 114 transitions. [2022-12-14 11:19:24,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:19:24,914 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2022-12-14 11:19:24,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:24,915 INFO L225 Difference]: With dead ends: 107 [2022-12-14 11:19:24,915 INFO L226 Difference]: Without dead ends: 107 [2022-12-14 11:19:24,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 143 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=591, Unknown=0, NotChecked=0, Total=702 [2022-12-14 11:19:24,916 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 97 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:24,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 328 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 11:19:24,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-12-14 11:19:24,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 87. [2022-12-14 11:19:24,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.2923076923076924) internal successors, (84), 77 states have internal predecessors, (84), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-14 11:19:24,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 97 transitions. [2022-12-14 11:19:24,919 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 97 transitions. Word has length 34 [2022-12-14 11:19:24,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:24,919 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 97 transitions. [2022-12-14 11:19:24,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 11:19:24,919 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2022-12-14 11:19:24,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 11:19:24,919 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:24,919 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:24,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2022-12-14 11:19:25,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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)] Ended with exit code 0 [2022-12-14 11:19:25,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2022-12-14 11:19:25,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:25,521 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_kobject_putErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:25,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:25,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1321183461, now seen corresponding path program 1 times [2022-12-14 11:19:25,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:25,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172855820] [2022-12-14 11:19:25,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:25,523 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 [2022-12-14 11:19:25,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:25,524 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:25,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:25,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:25,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:25,756 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:25,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:25,911 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:25,911 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:25,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172855820] [2022-12-14 11:19:25,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172855820] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:25,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1573685308] [2022-12-14 11:19:25,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:25,911 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:25,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 11:19:25,912 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 11:19:25,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2022-12-14 11:19:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:26,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:26,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:26,088 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:26,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:26,106 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:26,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1573685308] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:26,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225982161] [2022-12-14 11:19:26,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:26,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:26,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:19:26,108 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:19:26,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-12-14 11:19:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:26,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-14 11:19:26,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:26,221 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 [2022-12-14 11:19:26,580 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 11:19:26,581 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:26,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225982161] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:26,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-12-14 11:19:26,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8, 8, 8, 8] total 24 [2022-12-14 11:19:26,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370707930] [2022-12-14 11:19:26,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:26,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 11:19:26,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:26,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 11:19:26,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:19:26,583 INFO L87 Difference]: Start difference. First operand 87 states and 97 transitions. Second operand has 12 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 11:19:26,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:26,980 INFO L93 Difference]: Finished difference Result 89 states and 98 transitions. [2022-12-14 11:19:26,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:19:26,981 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2022-12-14 11:19:26,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:26,982 INFO L225 Difference]: With dead ends: 89 [2022-12-14 11:19:26,982 INFO L226 Difference]: Without dead ends: 89 [2022-12-14 11:19:26,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 142 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=116, Invalid=696, Unknown=0, NotChecked=0, Total=812 [2022-12-14 11:19:26,983 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 147 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:26,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 313 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 11:19:26,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-12-14 11:19:26,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 85. [2022-12-14 11:19:26,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 65 states have (on average 1.2307692307692308) internal successors, (80), 75 states have internal predecessors, (80), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-14 11:19:26,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2022-12-14 11:19:26,987 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 34 [2022-12-14 11:19:26,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:26,988 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2022-12-14 11:19:26,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 11:19:26,988 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2022-12-14 11:19:26,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-14 11:19:26,988 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:26,988 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:26,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2022-12-14 11:19:27,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2022-12-14 11:19:27,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:27,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:19:27,591 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_kobject_putErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:27,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:27,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1402270530, now seen corresponding path program 1 times [2022-12-14 11:19:27,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:27,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833431544] [2022-12-14 11:19:27,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:27,594 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 [2022-12-14 11:19:27,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:27,595 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:27,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-12-14 11:19:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:27,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:27,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:27,797 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:27,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:27,966 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:27,966 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:27,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [833431544] [2022-12-14 11:19:27,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [833431544] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:27,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1509792426] [2022-12-14 11:19:27,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:27,966 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:27,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 11:19:27,967 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 11:19:27,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2022-12-14 11:19:28,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:28,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:28,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:28,216 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:28,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:28,238 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:28,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1509792426] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:28,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436164888] [2022-12-14 11:19:28,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:28,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:28,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:19:28,239 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:19:28,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-12-14 11:19:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:28,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 11:19:28,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:28,340 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 [2022-12-14 11:19:28,613 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 11:19:28,613 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:28,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436164888] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:28,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-12-14 11:19:28,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8, 8, 8, 8] total 24 [2022-12-14 11:19:28,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338398263] [2022-12-14 11:19:28,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:28,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 11:19:28,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:28,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 11:19:28,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:19:28,615 INFO L87 Difference]: Start difference. First operand 85 states and 93 transitions. Second operand has 12 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 11:19:29,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:29,137 INFO L93 Difference]: Finished difference Result 102 states and 109 transitions. [2022-12-14 11:19:29,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:19:29,138 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2022-12-14 11:19:29,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:29,138 INFO L225 Difference]: With dead ends: 102 [2022-12-14 11:19:29,138 INFO L226 Difference]: Without dead ends: 102 [2022-12-14 11:19:29,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 172 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=123, Invalid=689, Unknown=0, NotChecked=0, Total=812 [2022-12-14 11:19:29,139 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 91 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:29,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 288 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 11:19:29,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-12-14 11:19:29,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 85. [2022-12-14 11:19:29,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 66 states have (on average 1.2272727272727273) internal successors, (81), 75 states have internal predecessors, (81), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-14 11:19:29,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2022-12-14 11:19:29,142 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 40 [2022-12-14 11:19:29,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:29,142 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2022-12-14 11:19:29,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 11:19:29,142 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2022-12-14 11:19:29,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-14 11:19:29,143 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:29,143 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:29,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-12-14 11:19:29,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2022-12-14 11:19:29,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2022-12-14 11:19:29,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:29,745 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_kobject_putErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:29,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:29,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1402270529, now seen corresponding path program 1 times [2022-12-14 11:19:29,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:29,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61152112] [2022-12-14 11:19:29,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:29,749 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 [2022-12-14 11:19:29,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:29,752 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:29,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:29,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:29,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:29,975 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:29,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:30,133 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:30,133 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:30,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61152112] [2022-12-14 11:19:30,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61152112] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:30,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1476639368] [2022-12-14 11:19:30,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:30,134 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:30,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 11:19:30,134 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 11:19:30,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2022-12-14 11:19:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:30,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:30,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:30,360 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:30,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:30,381 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:30,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1476639368] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:30,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6413594] [2022-12-14 11:19:30,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:30,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:30,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:19:30,382 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:19:30,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-12-14 11:19:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:30,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 42 conjunts are in the unsatisfiable core [2022-12-14 11:19:30,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:30,510 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 [2022-12-14 11:19:30,855 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 11:19:30,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:30,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6413594] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:30,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-12-14 11:19:30,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8, 8, 8, 8] total 25 [2022-12-14 11:19:30,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723161270] [2022-12-14 11:19:30,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:30,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:19:30,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:30,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:19:30,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=509, Unknown=0, NotChecked=0, Total=600 [2022-12-14 11:19:30,856 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 11:19:31,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:31,422 INFO L93 Difference]: Finished difference Result 87 states and 96 transitions. [2022-12-14 11:19:31,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:19:31,422 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2022-12-14 11:19:31,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:31,423 INFO L225 Difference]: With dead ends: 87 [2022-12-14 11:19:31,423 INFO L226 Difference]: Without dead ends: 87 [2022-12-14 11:19:31,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 171 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=802, Unknown=0, NotChecked=0, Total=930 [2022-12-14 11:19:31,424 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 119 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:31,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 319 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 11:19:31,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-12-14 11:19:31,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2022-12-14 11:19:31,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 73 states have internal predecessors, (78), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-14 11:19:31,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 91 transitions. [2022-12-14 11:19:31,426 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 91 transitions. Word has length 40 [2022-12-14 11:19:31,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:31,426 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 91 transitions. [2022-12-14 11:19:31,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 11:19:31,427 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 91 transitions. [2022-12-14 11:19:31,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-14 11:19:31,427 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:31,427 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-12-14 11:19:31,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2022-12-14 11:19:31,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 [2022-12-14 11:19:31,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2022-12-14 11:19:32,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:32,029 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:32,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:32,030 INFO L85 PathProgramCache]: Analyzing trace with hash 882776312, now seen corresponding path program 1 times [2022-12-14 11:19:32,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:32,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212668856] [2022-12-14 11:19:32,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:32,032 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 [2022-12-14 11:19:32,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:32,034 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:32,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-12-14 11:19:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:32,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:32,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:32,187 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 11:19:32,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:32,339 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 11:19:32,339 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:32,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212668856] [2022-12-14 11:19:32,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212668856] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:32,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [755747801] [2022-12-14 11:19:32,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:32,339 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:32,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 11:19:32,340 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 11:19:32,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2022-12-14 11:19:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:32,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 11:19:32,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:32,628 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 11:19:32,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:32,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [755747801] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:32,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 11:19:32,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 21 [2022-12-14 11:19:32,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177163910] [2022-12-14 11:19:32,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:32,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 11:19:32,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:32,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 11:19:32,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2022-12-14 11:19:32,630 INFO L87 Difference]: Start difference. First operand 83 states and 91 transitions. Second operand has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 11:19:32,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:32,732 INFO L93 Difference]: Finished difference Result 87 states and 93 transitions. [2022-12-14 11:19:32,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 11:19:32,733 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 42 [2022-12-14 11:19:32,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:32,734 INFO L225 Difference]: With dead ends: 87 [2022-12-14 11:19:32,734 INFO L226 Difference]: Without dead ends: 83 [2022-12-14 11:19:32,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:19:32,735 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 41 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:32,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 379 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:19:32,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-12-14 11:19:32,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-12-14 11:19:32,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 66 states have (on average 1.1515151515151516) internal successors, (76), 73 states have internal predecessors, (76), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-14 11:19:32,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2022-12-14 11:19:32,739 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 42 [2022-12-14 11:19:32,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:32,739 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2022-12-14 11:19:32,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 11:19:32,739 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2022-12-14 11:19:32,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 11:19:32,740 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:32,740 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:32,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2022-12-14 11:19:32,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2022-12-14 11:19:33,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:33,142 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_kobject_putErr7ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:33,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:33,143 INFO L85 PathProgramCache]: Analyzing trace with hash 2105585627, now seen corresponding path program 1 times [2022-12-14 11:19:33,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:33,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146264429] [2022-12-14 11:19:33,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:33,145 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 [2022-12-14 11:19:33,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:33,147 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:33,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-12-14 11:19:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:33,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:33,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:33,360 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:33,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:33,502 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:33,502 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:33,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [146264429] [2022-12-14 11:19:33,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [146264429] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:33,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [924569701] [2022-12-14 11:19:33,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:33,503 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:33,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 11:19:33,503 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 11:19:33,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2022-12-14 11:19:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:33,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 11:19:33,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:33,961 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 11:19:33,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:19:33,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [924569701] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:19:33,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 11:19:33,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8, 8] total 24 [2022-12-14 11:19:33,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586470976] [2022-12-14 11:19:33,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:19:33,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 11:19:33,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:33,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 11:19:33,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2022-12-14 11:19:33,964 INFO L87 Difference]: Start difference. First operand 83 states and 89 transitions. Second operand has 12 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 11:19:34,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:34,344 INFO L93 Difference]: Finished difference Result 82 states and 88 transitions. [2022-12-14 11:19:34,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 11:19:34,346 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2022-12-14 11:19:34,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:34,346 INFO L225 Difference]: With dead ends: 82 [2022-12-14 11:19:34,346 INFO L226 Difference]: Without dead ends: 82 [2022-12-14 11:19:34,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=123, Invalid=689, Unknown=0, NotChecked=0, Total=812 [2022-12-14 11:19:34,347 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 113 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:34,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 320 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 11:19:34,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-12-14 11:19:34,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-12-14 11:19:34,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 66 states have (on average 1.1363636363636365) internal successors, (75), 72 states have internal predecessors, (75), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-14 11:19:34,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2022-12-14 11:19:34,349 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 43 [2022-12-14 11:19:34,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:34,349 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2022-12-14 11:19:34,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 11:19:34,349 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2022-12-14 11:19:34,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 11:19:34,350 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:34,350 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:34,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2022-12-14 11:19:34,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2022-12-14 11:19:34,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:34,751 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_kobject_putErr9ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:34,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:34,752 INFO L85 PathProgramCache]: Analyzing trace with hash -495821886, now seen corresponding path program 1 times [2022-12-14 11:19:34,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:34,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081701698] [2022-12-14 11:19:34,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:34,754 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 [2022-12-14 11:19:34,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:34,757 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:34,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-12-14 11:19:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:34,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:34,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:34,954 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:34,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:35,104 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:35,104 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:35,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081701698] [2022-12-14 11:19:35,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081701698] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:35,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [204502940] [2022-12-14 11:19:35,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:35,104 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:35,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 11:19:35,105 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 11:19:35,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2022-12-14 11:19:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:35,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:19:35,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:35,360 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:35,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:35,380 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:35,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [204502940] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:35,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870210722] [2022-12-14 11:19:35,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:19:35,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:35,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:19:35,381 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:19:35,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2022-12-14 11:19:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:19:35,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 11:19:35,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:35,534 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:35,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:35,835 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:35,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870210722] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:35,835 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 11:19:35,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 19 [2022-12-14 11:19:35,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235940586] [2022-12-14 11:19:35,835 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 11:19:35,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-14 11:19:35,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:35,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-14 11:19:35,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2022-12-14 11:19:35,837 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand has 19 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 19 states have internal predecessors, (60), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 11:19:36,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:36,182 INFO L93 Difference]: Finished difference Result 88 states and 94 transitions. [2022-12-14 11:19:36,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 11:19:36,183 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 19 states have internal predecessors, (60), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2022-12-14 11:19:36,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:36,183 INFO L225 Difference]: With dead ends: 88 [2022-12-14 11:19:36,183 INFO L226 Difference]: Without dead ends: 88 [2022-12-14 11:19:36,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=202, Invalid=398, Unknown=0, NotChecked=0, Total=600 [2022-12-14 11:19:36,184 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 58 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:36,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 725 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:19:36,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-12-14 11:19:36,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-12-14 11:19:36,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 72 states have (on average 1.125) internal successors, (81), 78 states have internal predecessors, (81), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-14 11:19:36,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 94 transitions. [2022-12-14 11:19:36,186 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 94 transitions. Word has length 46 [2022-12-14 11:19:36,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:36,187 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 94 transitions. [2022-12-14 11:19:36,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 19 states have internal predecessors, (60), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 11:19:36,187 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 94 transitions. [2022-12-14 11:19:36,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 11:19:36,187 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:36,187 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:36,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2022-12-14 11:19:36,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2022-12-14 11:19:36,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2022-12-14 11:19:36,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:36,790 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_kobject_putErr9ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:36,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:36,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1308852962, now seen corresponding path program 2 times [2022-12-14 11:19:36,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:36,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046093207] [2022-12-14 11:19:36,792 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 11:19:36,792 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 [2022-12-14 11:19:36,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:36,795 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:36,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-12-14 11:19:37,028 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 11:19:37,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 11:19:37,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 11:19:37,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:37,177 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:37,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:38,075 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:38,075 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:38,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046093207] [2022-12-14 11:19:38,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046093207] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:38,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2061075511] [2022-12-14 11:19:38,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 11:19:38,076 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:38,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 11:19:38,076 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 11:19:38,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2022-12-14 11:19:38,599 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 11:19:38,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 11:19:38,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 11:19:38,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:38,672 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:38,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:38,978 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:38,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2061075511] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:38,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525829398] [2022-12-14 11:19:38,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 11:19:38,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:38,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:19:38,979 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:19:38,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2022-12-14 11:19:39,684 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 11:19:39,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 11:19:39,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 11:19:39,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:39,740 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:39,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:40,497 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:40,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525829398] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:19:40,498 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 11:19:40,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14, 14, 14, 14] total 35 [2022-12-14 11:19:40,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121354256] [2022-12-14 11:19:40,498 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 11:19:40,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-12-14 11:19:40,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:19:40,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-12-14 11:19:40,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 11:19:40,500 INFO L87 Difference]: Start difference. First operand 88 states and 94 transitions. Second operand has 35 states, 35 states have (on average 2.142857142857143) internal successors, (75), 35 states have internal predecessors, (75), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 11:19:42,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:19:42,422 INFO L93 Difference]: Finished difference Result 100 states and 107 transitions. [2022-12-14 11:19:42,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-14 11:19:42,423 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.142857142857143) internal successors, (75), 35 states have internal predecessors, (75), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 52 [2022-12-14 11:19:42,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:19:42,423 INFO L225 Difference]: With dead ends: 100 [2022-12-14 11:19:42,423 INFO L226 Difference]: Without dead ends: 100 [2022-12-14 11:19:42,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=615, Invalid=1547, Unknown=0, NotChecked=0, Total=2162 [2022-12-14 11:19:42,424 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 162 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:19:42,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 1038 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 11:19:42,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-12-14 11:19:42,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2022-12-14 11:19:42,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 84 states have (on average 1.119047619047619) internal successors, (94), 90 states have internal predecessors, (94), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-14 11:19:42,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 107 transitions. [2022-12-14 11:19:42,427 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 107 transitions. Word has length 52 [2022-12-14 11:19:42,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:19:42,427 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 107 transitions. [2022-12-14 11:19:42,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.142857142857143) internal successors, (75), 35 states have internal predecessors, (75), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 11:19:42,427 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 107 transitions. [2022-12-14 11:19:42,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-14 11:19:42,428 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:19:42,428 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:19:42,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2022-12-14 11:19:42,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2022-12-14 11:19:42,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Ended with exit code 0 [2022-12-14 11:19:43,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:19:43,030 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_kobject_putErr9ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:19:43,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:19:43,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1197288958, now seen corresponding path program 3 times [2022-12-14 11:19:43,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:19:43,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727671960] [2022-12-14 11:19:43,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 11:19:43,033 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 [2022-12-14 11:19:43,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:19:43,036 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:19:43,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-12-14 11:19:43,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2022-12-14 11:19:43,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 11:19:43,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 126 conjunts are in the unsatisfiable core [2022-12-14 11:19:43,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:43,703 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 16 treesize of output 12 [2022-12-14 11:19:43,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:43,753 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 23 treesize of output 22 [2022-12-14 11:19:43,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:43,802 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 23 treesize of output 22 [2022-12-14 11:19:43,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:43,846 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 23 treesize of output 22 [2022-12-14 11:19:43,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:43,906 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 23 treesize of output 22 [2022-12-14 11:19:43,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:43,967 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 23 treesize of output 22 [2022-12-14 11:19:44,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:44,020 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 23 treesize of output 22 [2022-12-14 11:19:44,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:44,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-14 11:19:44,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:44,130 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 23 treesize of output 22 [2022-12-14 11:19:44,188 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:19:44,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 27 [2022-12-14 11:19:44,251 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:19:44,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 11:19:44,352 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:19:44,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 34 [2022-12-14 11:19:44,459 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:19:44,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 37 [2022-12-14 11:19:44,588 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:19:44,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 40 [2022-12-14 11:19:44,724 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:19:44,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 43 [2022-12-14 11:19:44,857 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 11:19:44,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2022-12-14 11:19:45,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:19:45,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 51 [2022-12-14 11:19:45,552 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2114 (_ BitVec 32)) (v_ArrVal_2112 (_ BitVec 32))) (= |c_#memory_$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_2112) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_2114)))) is different from true [2022-12-14 11:19:45,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,565 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 [2022-12-14 11:19:45,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:45,850 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 [2022-12-14 11:19:45,934 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 [2022-12-14 11:19:46,012 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:46,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:47,118 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:19:47,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1727671960] [2022-12-14 11:19:47,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1727671960] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:19:47,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [118608915] [2022-12-14 11:19:47,118 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 11:19:47,118 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 11:19:47,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 11:19:47,119 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 11:19:47,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2022-12-14 11:19:49,472 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2022-12-14 11:19:49,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 11:19:49,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 133 conjunts are in the unsatisfiable core [2022-12-14 11:19:49,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:19:49,543 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 13 treesize of output 9 [2022-12-14 11:19:49,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 26 [2022-12-14 11:19:49,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:49,646 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 23 treesize of output 22 [2022-12-14 11:19:49,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:49,662 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 23 treesize of output 22 [2022-12-14 11:19:49,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:49,695 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 23 treesize of output 22 [2022-12-14 11:19:49,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:49,714 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 24 treesize of output 23 [2022-12-14 11:19:49,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:49,744 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 24 treesize of output 23 [2022-12-14 11:19:49,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:49,767 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 23 treesize of output 22 [2022-12-14 11:19:49,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:49,785 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 23 treesize of output 22 [2022-12-14 11:19:49,822 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:19:49,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 27 [2022-12-14 11:19:49,854 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:19:49,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 11:19:49,905 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:19:49,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 34 [2022-12-14 11:19:49,955 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:19:49,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 37 [2022-12-14 11:19:50,000 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:19:50,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 40 [2022-12-14 11:19:50,048 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:19:50,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 43 [2022-12-14 11:19:50,107 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 11:19:50,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2022-12-14 11:19:50,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:50,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:50,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:50,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:50,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:19:50,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 51 [2022-12-14 11:19:50,313 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2308 (_ BitVec 32)) (v_ArrVal_2112 (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.offset)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_$Pointer$.offset)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) |c_LDV_INIT_LIST_HEAD_#in~list.offset| v_ArrVal_2112) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_2308)) |c_#memory_$Pointer$.offset|)) is different from true [2022-12-14 11:19:50,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:50,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:50,326 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 [2022-12-14 11:19:50,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:50,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:50,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:50,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:50,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:50,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:19:50,369 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 [2022-12-14 11:19:50,391 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 11:19:50,391 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 10 [2022-12-14 11:19:50,482 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:19:50,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:19:51,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [118608915] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:19:51,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864159691] [2022-12-14 11:19:51,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 11:19:51,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:19:51,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:19:51,564 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:19:51,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2022-12-14 11:22:30,636 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2022-12-14 11:22:30,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 11:22:30,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 156 conjunts are in the unsatisfiable core [2022-12-14 11:22:30,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:22:30,742 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 [2022-12-14 11:22:31,190 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 13 treesize of output 9 [2022-12-14 11:22:31,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:31,316 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 23 treesize of output 22 [2022-12-14 11:22:31,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:31,499 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 23 treesize of output 22 [2022-12-14 11:22:31,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:31,663 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 24 treesize of output 23 [2022-12-14 11:22:31,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:31,824 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 23 treesize of output 22 [2022-12-14 11:22:31,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:31,964 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 26 treesize of output 25 [2022-12-14 11:22:32,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:32,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:32,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2022-12-14 11:22:32,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:32,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:32,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:32,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2022-12-14 11:22:32,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:32,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:32,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:32,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:32,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:32,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:32,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:32,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 65 [2022-12-14 11:22:32,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:32,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:32,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:32,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:32,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 66 [2022-12-14 11:22:33,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 81 [2022-12-14 11:22:33,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 82 [2022-12-14 11:22:33,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:33,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 95 [2022-12-14 11:22:34,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 92 [2022-12-14 11:22:34,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 93 [2022-12-14 11:22:34,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:34,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 92 [2022-12-14 11:22:35,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:35,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 55 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 119 [2022-12-14 11:22:35,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-12-14 11:22:37,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:37,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:37,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:37,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:37,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:37,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:37,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:37,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:37,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 36 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 101 [2022-12-14 11:22:38,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 11:22:38,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:38,522 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 11:22:38,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 55 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 76 treesize of output 105 [2022-12-14 11:22:38,946 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 11:22:38,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 57 treesize of output 28 [2022-12-14 11:22:38,957 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:22:38,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:22:41,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864159691] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:22:41,188 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:22:41,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 42, 42] total 82 [2022-12-14 11:22:41,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148593894] [2022-12-14 11:22:41,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 11:22:41,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-12-14 11:22:41,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:22:41,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-12-14 11:22:41,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=799, Invalid=11197, Unknown=2, NotChecked=434, Total=12432 [2022-12-14 11:22:41,191 INFO L87 Difference]: Start difference. First operand 100 states and 107 transitions. Second operand has 83 states, 80 states have (on average 1.2875) internal successors, (103), 77 states have internal predecessors, (103), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-14 11:22:56,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:22:56,408 INFO L93 Difference]: Finished difference Result 93 states and 98 transitions. [2022-12-14 11:22:56,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-14 11:22:56,409 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 80 states have (on average 1.2875) internal successors, (103), 77 states have internal predecessors, (103), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 58 [2022-12-14 11:22:56,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:22:56,410 INFO L225 Difference]: With dead ends: 93 [2022-12-14 11:22:56,410 INFO L226 Difference]: Without dead ends: 93 [2022-12-14 11:22:56,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 116 SyntacticMatches, 6 SemanticMatches, 139 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 7492 ImplicationChecksByTransitivity, 19.0s TimeCoverageRelationStatistics Valid=1401, Invalid=17787, Unknown=2, NotChecked=550, Total=19740 [2022-12-14 11:22:56,413 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 302 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 1564 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 1764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 155 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:22:56,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 417 Invalid, 1764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1564 Invalid, 0 Unknown, 155 Unchecked, 8.3s Time] [2022-12-14 11:22:56,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-12-14 11:22:56,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-12-14 11:22:56,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 78 states have (on average 1.0897435897435896) internal successors, (85), 83 states have internal predecessors, (85), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-14 11:22:56,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 98 transitions. [2022-12-14 11:22:56,416 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 98 transitions. Word has length 58 [2022-12-14 11:22:56,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:22:56,416 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 98 transitions. [2022-12-14 11:22:56,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 80 states have (on average 1.2875) internal successors, (103), 77 states have internal predecessors, (103), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-14 11:22:56,416 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 98 transitions. [2022-12-14 11:22:56,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-14 11:22:56,416 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:22:56,416 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:22:56,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Ended with exit code 0 [2022-12-14 11:22:56,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2022-12-14 11:22:56,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2022-12-14 11:22:57,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 11:22:57,019 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_kobject_putErr10ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:22:57,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:22:57,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1538748096, now seen corresponding path program 1 times [2022-12-14 11:22:57,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:22:57,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303774336] [2022-12-14 11:22:57,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:22:57,022 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 [2022-12-14 11:22:57,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:22:57,024 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:22:57,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2022-12-14 11:22:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:22:57,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 122 conjunts are in the unsatisfiable core [2022-12-14 11:22:57,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:22:57,462 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 [2022-12-14 11:22:57,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:57,499 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 [2022-12-14 11:22:57,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:57,541 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 [2022-12-14 11:22:57,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:57,577 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 [2022-12-14 11:22:57,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:57,627 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 22 treesize of output 21 [2022-12-14 11:22:57,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:57,678 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 [2022-12-14 11:22:57,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:57,723 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 [2022-12-14 11:22:57,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:57,763 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 [2022-12-14 11:22:57,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:57,805 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 [2022-12-14 11:22:57,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:57,847 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 [2022-12-14 11:22:57,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:57,893 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 [2022-12-14 11:22:57,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:57,939 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 [2022-12-14 11:22:57,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:57,999 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 [2022-12-14 11:22:58,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:58,046 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 [2022-12-14 11:22:58,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:58,091 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 [2022-12-14 11:22:58,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:58,133 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 [2022-12-14 11:22:58,283 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 [2022-12-14 11:22:58,419 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2697 (_ BitVec 32)) (v_ArrVal_2699 (_ BitVec 32))) (= |c_#memory_$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_2697) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_2699)))) is different from true [2022-12-14 11:22:58,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:58,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:58,438 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 [2022-12-14 11:22:58,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:58,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:58,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:58,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:58,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:58,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:22:58,651 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 [2022-12-14 11:22:58,733 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 [2022-12-14 11:22:58,825 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:22:58,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:22:59,731 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:22:59,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303774336] [2022-12-14 11:22:59,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303774336] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:22:59,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [574780750] [2022-12-14 11:22:59,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:22:59,731 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 11:22:59,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 11:22:59,732 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 11:22:59,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2022-12-14 11:23:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:00,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 119 conjunts are in the unsatisfiable core [2022-12-14 11:23:00,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:23:00,331 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 [2022-12-14 11:23:00,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-12-14 11:23:00,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:00,397 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 [2022-12-14 11:23:00,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:00,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 11:23:00,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:00,441 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 [2022-12-14 11:23:00,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:00,454 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 22 treesize of output 21 [2022-12-14 11:23:00,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:00,479 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 [2022-12-14 11:23:00,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:00,496 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 [2022-12-14 11:23:00,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:00,514 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 [2022-12-14 11:23:00,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:00,536 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 [2022-12-14 11:23:00,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:00,552 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 [2022-12-14 11:23:00,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:00,575 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 [2022-12-14 11:23:00,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:00,598 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 [2022-12-14 11:23:00,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:00,610 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 [2022-12-14 11:23:00,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:00,635 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 [2022-12-14 11:23:00,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:00,644 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 [2022-12-14 11:23:00,692 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 [2022-12-14 11:23:00,779 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2896 (_ BitVec 32)) (v_ArrVal_2697 (_ BitVec 32))) (= |c_#memory_$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_2697) (bvadd (_ bv4 32) |c_LDV_INIT_LIST_HEAD_#in~list.offset|) v_ArrVal_2896)))) is different from true [2022-12-14 11:23:00,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:00,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:00,791 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 [2022-12-14 11:23:00,919 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 [2022-12-14 11:23:01,068 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 11:23:01,068 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 [2022-12-14 11:23:01,201 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:01,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:23:03,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [574780750] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:23:03,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675550692] [2022-12-14 11:23:03,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:03,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:23:03,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:23:03,115 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:23:03,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2022-12-14 11:23:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:23:03,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 153 conjunts are in the unsatisfiable core [2022-12-14 11:23:03,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:23:03,447 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 [2022-12-14 11:23:03,916 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 [2022-12-14 11:23:04,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:04,040 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 [2022-12-14 11:23:04,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:04,189 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 [2022-12-14 11:23:04,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:04,313 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 [2022-12-14 11:23:04,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:04,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-14 11:23:04,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:04,608 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 22 treesize of output 21 [2022-12-14 11:23:04,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:04,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:04,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-12-14 11:23:05,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-12-14 11:23:05,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 57 [2022-12-14 11:23:05,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2022-12-14 11:23:05,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 69 [2022-12-14 11:23:05,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:05,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2022-12-14 11:23:06,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2022-12-14 11:23:06,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 81 [2022-12-14 11:23:06,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:06,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2022-12-14 11:23:07,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2022-12-14 11:23:07,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:07,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 45 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 107 [2022-12-14 11:23:08,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2022-12-14 11:23:09,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:09,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:09,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:09,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:09,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:09,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:09,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:09,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 89 [2022-12-14 11:23:10,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 11:23:10,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:23:10,757 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 11:23:10,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 45 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 95 [2022-12-14 11:23:11,222 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 11:23:11,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 50 treesize of output 25 [2022-12-14 11:23:11,453 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:23:11,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:23:14,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675550692] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 11:23:14,216 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 11:23:14,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 41, 43] total 85 [2022-12-14 11:23:14,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73939467] [2022-12-14 11:23:14,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 11:23:14,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2022-12-14 11:23:14,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:23:14,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2022-12-14 11:23:14,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=649, Invalid=11129, Unknown=2, NotChecked=430, Total=12210 [2022-12-14 11:23:14,219 INFO L87 Difference]: Start difference. First operand 93 states and 98 transitions. Second operand has 85 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 79 states have internal predecessors, (113), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-14 11:23:28,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:23:28,617 INFO L93 Difference]: Finished difference Result 89 states and 93 transitions. [2022-12-14 11:23:28,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-14 11:23:28,618 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 79 states have internal predecessors, (113), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 59 [2022-12-14 11:23:28,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:23:28,618 INFO L225 Difference]: With dead ends: 89 [2022-12-14 11:23:28,618 INFO L226 Difference]: Without dead ends: 88 [2022-12-14 11:23:28,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 124 SyntacticMatches, 5 SemanticMatches, 129 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5751 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=1046, Invalid=15472, Unknown=2, NotChecked=510, Total=17030 [2022-12-14 11:23:28,620 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 215 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 2442 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 2613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 145 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:23:28,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 735 Invalid, 2613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2442 Invalid, 0 Unknown, 145 Unchecked, 10.1s Time] [2022-12-14 11:23:28,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-12-14 11:23:28,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-12-14 11:23:28,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 75 states have (on average 1.0533333333333332) internal successors, (79), 78 states have internal predecessors, (79), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-14 11:23:28,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 92 transitions. [2022-12-14 11:23:28,622 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 92 transitions. Word has length 59 [2022-12-14 11:23:28,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:23:28,622 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 92 transitions. [2022-12-14 11:23:28,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 79 states have internal predecessors, (113), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-14 11:23:28,622 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 92 transitions. [2022-12-14 11:23:28,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-14 11:23:28,623 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:23:28,623 INFO L195 NwaCegarLoop]: trace histogram [16, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:23:28,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2022-12-14 11:23:28,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2022-12-14 11:23:29,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Ended with exit code 0 [2022-12-14 11:23:29,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:23:29,225 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 18 more)] === [2022-12-14 11:23:29,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:23:29,226 INFO L85 PathProgramCache]: Analyzing trace with hash -418298125, now seen corresponding path program 1 times [2022-12-14 11:23:29,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:23:29,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932196342] [2022-12-14 11:23:29,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:23:29,228 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 [2022-12-14 11:23:29,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:23:29,230 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -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) [2022-12-14 11:23:29,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2022-12-14 11:23:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:23:29,602 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 11:23:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:23:29,860 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 11:23:29,860 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 11:23:29,860 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_kobject_putErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 21 remaining) [2022-12-14 11:23:29,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE (19 of 21 remaining) [2022-12-14 11:23:29,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (18 of 21 remaining) [2022-12-14 11:23:29,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 21 remaining) [2022-12-14 11:23:29,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 21 remaining) [2022-12-14 11:23:29,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (15 of 21 remaining) [2022-12-14 11:23:29,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 21 remaining) [2022-12-14 11:23:29,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 21 remaining) [2022-12-14 11:23:29,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 21 remaining) [2022-12-14 11:23:29,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 21 remaining) [2022-12-14 11:23:29,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 21 remaining) [2022-12-14 11:23:29,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 21 remaining) [2022-12-14 11:23:29,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 21 remaining) [2022-12-14 11:23:29,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 21 remaining) [2022-12-14 11:23:29,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 21 remaining) [2022-12-14 11:23:29,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr6ASSERT_VIOLATIONMEMORY_FREE (5 of 21 remaining) [2022-12-14 11:23:29,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr7ASSERT_VIOLATIONMEMORY_FREE (4 of 21 remaining) [2022-12-14 11:23:29,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr8ASSERT_VIOLATIONMEMORY_FREE (3 of 21 remaining) [2022-12-14 11:23:29,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr9ASSERT_VIOLATIONMEMORY_FREE (2 of 21 remaining) [2022-12-14 11:23:29,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr10ASSERT_VIOLATIONMEMORY_FREE (1 of 21 remaining) [2022-12-14 11:23:29,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_putErr11ASSERT_VIOLATIONMEMORY_FREE (0 of 21 remaining) [2022-12-14 11:23:29,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (54)] Ended with exit code 0 [2022-12-14 11:23:30,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:23:30,074 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:23:30,077 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:23:30,083 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,084 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,084 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,084 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,084 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,085 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,085 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,085 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,085 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,085 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,085 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,086 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,086 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,086 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,086 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,086 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,086 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,086 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,087 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,087 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,087 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,087 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,087 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,087 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,088 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,088 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,088 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,088 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,088 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,088 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,088 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,089 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,089 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,089 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,089 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,089 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,089 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,090 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,090 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,090 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,090 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,090 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,090 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,090 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,090 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,091 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,091 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,091 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,091 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,091 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,091 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,091 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,092 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,092 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,092 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,092 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,092 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,092 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,092 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,093 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,093 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,093 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,093 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,094 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,094 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,094 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,094 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,094 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,094 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,094 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,094 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,095 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,095 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,095 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,095 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,095 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,098 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,098 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,098 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,099 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:23:30 BoogieIcfgContainer [2022-12-14 11:23:30,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:23:30,116 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:23:30,116 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:23:30,117 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:23:30,117 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:19:11" (3/4) ... [2022-12-14 11:23:30,118 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 11:23:30,119 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,120 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,120 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,120 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,120 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,120 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,120 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,120 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,120 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,120 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,120 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,120 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,120 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,120 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,120 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,120 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,120 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,121 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,121 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,121 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,121 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,121 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,121 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,121 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,121 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,121 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,121 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,121 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,121 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,121 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,121 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,121 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,121 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,121 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,122 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,122 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,122 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,122 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,122 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,122 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,122 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,122 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,122 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,122 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,122 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,122 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,122 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,122 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,122 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,122 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,122 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,122 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,123 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,123 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,123 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,123 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,123 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,123 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,123 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,123 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,123 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,123 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,123 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,123 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,123 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,123 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,123 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,124 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,124 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,124 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,124 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,124 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,124 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,124 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,124 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,124 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,126 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,126 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled [2022-12-14 11:23:30,126 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,126 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled [2022-12-14 11:23:30,155 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 11:23:30,155 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:23:30,156 INFO L158 Benchmark]: Toolchain (without parser) took 259630.74ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 39.4MB in the beginning and 26.7MB in the end (delta: 12.7MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. [2022-12-14 11:23:30,156 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 50.3MB. Free memory was 28.8MB in the beginning and 28.7MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:23:30,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.97ms. Allocated memory is still 62.9MB. Free memory was 39.2MB in the beginning and 26.8MB in the end (delta: 12.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 11:23:30,156 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.44ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 26.6MB in the beginning and 52.9MB in the end (delta: -26.3MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2022-12-14 11:23:30,156 INFO L158 Benchmark]: Boogie Preprocessor took 36.76ms. Allocated memory is still 75.5MB. Free memory was 52.9MB in the beginning and 50.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:23:30,157 INFO L158 Benchmark]: RCFGBuilder took 500.26ms. Allocated memory is still 75.5MB. Free memory was 50.5MB in the beginning and 47.9MB in the end (delta: 2.6MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2022-12-14 11:23:30,157 INFO L158 Benchmark]: TraceAbstraction took 258569.58ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 47.0MB in the beginning and 36.3MB in the end (delta: 10.8MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. [2022-12-14 11:23:30,157 INFO L158 Benchmark]: Witness Printer took 38.91ms. Allocated memory is still 92.3MB. Free memory was 36.3MB in the beginning and 26.7MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 11:23:30,158 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 50.3MB. Free memory was 28.8MB in the beginning and 28.7MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 433.97ms. Allocated memory is still 62.9MB. Free memory was 39.2MB in the beginning and 26.8MB in the end (delta: 12.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.44ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 26.6MB in the beginning and 52.9MB in the end (delta: -26.3MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.76ms. Allocated memory is still 75.5MB. Free memory was 52.9MB in the beginning and 50.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 500.26ms. Allocated memory is still 75.5MB. Free memory was 50.5MB in the beginning and 47.9MB in the end (delta: 2.6MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * TraceAbstraction took 258569.58ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 47.0MB in the beginning and 36.3MB in the end (delta: 10.8MB). Peak memory consumption was 45.0MB. Max. memory is 16.1GB. * Witness Printer took 38.91ms. Allocated memory is still 92.3MB. Free memory was 36.3MB in the beginning and 26.7MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#res#1 : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [ldv_global_msg_list={1:0}] [L764] CALL entry_point() [L758] struct ldv_kobject *kobj; [L759] CALL, EXPR ldv_kobject_create() [L740] struct ldv_kobject *kobj; VAL [ldv_global_msg_list={1:0}] [L741] CALL, EXPR ldv_malloc(sizeof(*kobj)) VAL [\old(size)=16, ldv_global_msg_list={1:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L741] RET, EXPR ldv_malloc(sizeof(*kobj)) VAL [ldv_global_msg_list={1:0}, ldv_malloc(sizeof(*kobj))={2:0}] [L741] kobj = ldv_malloc(sizeof(*kobj)) [L742] COND FALSE !(!kobj) [L744] FCALL memset(kobj, 0, sizeof(*kobj)) [L745] CALL ldv_kobject_init(kobj) [L730] COND FALSE !(!kobj) [L733] CALL ldv_kobject_init_internal(kobj) [L723] COND FALSE !(!kobj) [L725] CALL ldv_kref_init(&kobj->kref) [L682] ((&kref->refcount)->counter) = (1) VAL [kref={2:12}, kref={2:12}, ldv_global_msg_list={1:0}] [L725] RET ldv_kref_init(&kobj->kref) [L726] CALL LDV_INIT_LIST_HEAD(&kobj->entry) VAL [ldv_global_msg_list={1:0}, list={2:4}] [L540] list->next = list VAL [ldv_global_msg_list={1:0}, list={2:4}, list={2:4}] [L541] list->prev = list VAL [ldv_global_msg_list={1:0}, list={2:4}, list={2:4}] [L726] RET LDV_INIT_LIST_HEAD(&kobj->entry) VAL [kobj={2:0}, kobj={2:0}, ldv_global_msg_list={1:0}] [L733] RET ldv_kobject_init_internal(kobj) [L745] RET ldv_kobject_init(kobj) [L746] return kobj; VAL [\result={2:0}, kobj={2:0}, ldv_global_msg_list={1:0}] [L759] RET, EXPR ldv_kobject_create() [L759] kobj = ldv_kobject_create() [L760] CALL ldv_kobject_put(kobj) VAL [ldv_global_msg_list={1:0}] [L711] COND TRUE \read(*kobj) [L712] CALL ldv_kref_put(&kobj->kref, ldv_kobject_release) [L690] CALL, EXPR ldv_kref_sub(kref, 1, release) [L674] CALL, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L665] int temp; VAL [\old(i)=1, i=1, ldv_global_msg_list={1:0}, v={2:12}, v={2:12}] [L666] EXPR v->counter VAL [\old(i)=1, i=1, ldv_global_msg_list={1:0}, v={2:12}, v={2:12}, v->counter=1] [L666] temp = v->counter [L667] temp -= i VAL [\old(i)=1, i=1, ldv_global_msg_list={1:0}, temp=0, v={2:12}, v={2:12}] [L668] v->counter = temp VAL [\old(i)=1, i=1, ldv_global_msg_list={1:0}, temp=0, v={2:12}, v={2:12}] [L669] return temp; VAL [\old(i)=1, \result=0, i=1, ldv_global_msg_list={1:0}, temp=0, v={2:12}, v={2:12}] [L674] RET, EXPR ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L674] COND TRUE (ldv_atomic_sub_return(((int) count), (&kref->refcount)) == 0) [L675] CALL release(kref) [L706] const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); [L706] struct ldv_kobject *kobj = ({ const typeof( ((struct ldv_kobject *)0)->kref ) *__mptr = (kref); (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) );}); [L707] CALL ldv_kobject_cleanup(kobj) [L699] EXPR kobj->name VAL [kobj={2:0}, kobj={2:0}, kobj->name={0:0}, ldv_global_msg_list={1:0}] [L699] char *name = kobj->name; [L700] free(kobj) VAL [kobj={2:0}, kobj={2:0}, ldv_global_msg_list={1:0}, name={0:0}] [L700] free(kobj) VAL [kobj={2:0}, kobj={2:0}, ldv_global_msg_list={1:0}, name={0:0}] [L700] free(kobj) [L701] COND FALSE !(\read(*name)) VAL [kobj={2:0}, kobj={2:0}, ldv_global_msg_list={1:0}, name={0:0}] [L707] RET ldv_kobject_cleanup(kobj) [L675] RET release(kref) [L676] return 1; VAL [\old(count)=1, \result=1, count=1, kref={2:12}, kref={2:12}, ldv_global_msg_list={1:0}, release={-1:0}, release={-1:0}] [L690] RET, EXPR ldv_kref_sub(kref, 1, release) [L690] return ldv_kref_sub(kref, 1, release); [L712] RET ldv_kref_put(&kobj->kref, ldv_kobject_release) [L760] RET ldv_kobject_put(kobj) VAL [kobj={2:0}, ldv_global_msg_list={1:0}] [L761] CALL ldv_kobject_put(kobj) VAL [ldv_global_msg_list={1:0}] [L711] COND TRUE \read(*kobj) [L712] CALL ldv_kref_put(&kobj->kref, ldv_kobject_release) [L690] CALL ldv_kref_sub(kref, 1, release) [L674] CALL ldv_atomic_sub_return(((int) count), (&kref->refcount)) [L665] int temp; VAL [\old(i)=1, i=1, ldv_global_msg_list={1:0}, v={2:12}, v={2:12}] [L666] v->counter - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 21 error locations. Started 1 CEGAR loops. OverallTime: 258.5s, OverallIterations: 25, TraceHistogramMax: 16, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 36.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1770 SdHoareTripleChecker+Valid, 22.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1755 mSDsluCounter, 9502 SdHoareTripleChecker+Invalid, 20.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 300 IncrementalHoareTripleChecker+Unchecked, 7983 mSDsCounter, 294 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7072 IncrementalHoareTripleChecker+Invalid, 7666 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 294 mSolverCounterUnsat, 1519 mSDtfsCounter, 7072 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2793 GetRequests, 2141 SyntacticMatches, 15 SemanticMatches, 637 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 15491 ImplicationChecksByTransitivity, 44.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=22, InterpolantAutomatonStates: 294, 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, 24 MinimizatonAttempts, 138 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 165.3s SatisfiabilityAnalysisTime, 40.4s InterpolantComputationTime, 1790 NumberOfCodeBlocks, 1786 NumberOfCodeBlocksAsserted, 80 NumberOfCheckSat, 2549 ConstructedInterpolants, 50 QuantifiedInterpolants, 13982 SizeOfPredicates, 540 NumberOfNonLiveVariables, 10450 ConjunctsInSsa, 1284 ConjunctsInUnsatCore, 79 InterpolantComputations, 19 PerfectInterpolantSequences, 127/1663 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 11:23:30,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f1b0434-c16c-4267-8ac3-e9d4385e36fc/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)