./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test13_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test13_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 c20063fdafbef5c00ec1f1fcfed63f5b6ab29c7a5ae9bd5cc27a6dcf474b9797 --- 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 15:03:27,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:03:27,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:03:27,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:03:27,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:03:27,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:03:27,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:03:27,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:03:27,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:03:27,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:03:27,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:03:27,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:03:27,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:03:27,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:03:27,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:03:27,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:03:27,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:03:27,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:03:27,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:03:27,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:03:27,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:03:27,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:03:27,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:03:27,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:03:27,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:03:27,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:03:27,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:03:27,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:03:27,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:03:27,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:03:27,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:03:27,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:03:27,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:03:27,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:03:27,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:03:27,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:03:27,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:03:27,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:03:27,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:03:27,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:03:27,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:03:27,508 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 15:03:27,530 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:03:27,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:03:27,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:03:27,531 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:03:27,531 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:03:27,531 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:03:27,532 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:03:27,532 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:03:27,532 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:03:27,532 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:03:27,532 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:03:27,532 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:03:27,532 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:03:27,533 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:03:27,533 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:03:27,533 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:03:27,533 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:03:27,533 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:03:27,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 15:03:27,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 15:03:27,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:03:27,535 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:03:27,535 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:03:27,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:03:27,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:03:27,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:03:27,535 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 15:03:27,536 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 15:03:27,536 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 15:03:27,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:03:27,536 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 15:03:27,536 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:03:27,536 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:03:27,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:03:27,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:03:27,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:03:27,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:03:27,537 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:03:27,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:03:27,537 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:03:27,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:03:27,537 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:03:27,538 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_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c20063fdafbef5c00ec1f1fcfed63f5b6ab29c7a5ae9bd5cc27a6dcf474b9797 [2022-12-14 15:03:27,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:03:27,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:03:27,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:03:27,779 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:03:27,780 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:03:27,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-memsafety/memleaks_test13_1.i [2022-12-14 15:03:30,230 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:03:30,441 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:03:30,441 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/sv-benchmarks/c/ldv-memsafety/memleaks_test13_1.i [2022-12-14 15:03:30,450 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/data/d49bd7cd4/c83a2a88e27b4d9a913be0a1e36202f2/FLAGf87cef07f [2022-12-14 15:03:30,804 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/data/d49bd7cd4/c83a2a88e27b4d9a913be0a1e36202f2 [2022-12-14 15:03:30,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:03:30,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:03:30,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:03:30,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:03:30,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:03:30,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:03:30" (1/1) ... [2022-12-14 15:03:30,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@190cdf0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:03:30, skipping insertion in model container [2022-12-14 15:03:30,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:03:30" (1/1) ... [2022-12-14 15:03:30,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:03:30,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:03:31,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:03:31,169 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 15:03:31,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@517ea759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:03:31, skipping insertion in model container [2022-12-14 15:03:31,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:03:31,170 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-14 15:03:31,171 INFO L158 Benchmark]: Toolchain (without parser) took 363.80ms. Allocated memory is still 119.5MB. Free memory was 83.2MB in the beginning and 69.7MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 15:03:31,172 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory was 62.9MB in the beginning and 62.7MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:03:31,172 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.01ms. Allocated memory is still 119.5MB. Free memory was 83.2MB in the beginning and 69.7MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 15:03:31,174 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory was 62.9MB in the beginning and 62.7MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.01ms. Allocated memory is still 119.5MB. Free memory was 83.2MB in the beginning and 69.7MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test13_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 c20063fdafbef5c00ec1f1fcfed63f5b6ab29c7a5ae9bd5cc27a6dcf474b9797 --- 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 15:03:32,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:03:32,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:03:32,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:03:32,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:03:32,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:03:32,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:03:32,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:03:32,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:03:32,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:03:32,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:03:32,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:03:32,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:03:32,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:03:32,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:03:32,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:03:32,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:03:32,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:03:32,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:03:32,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:03:32,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:03:32,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:03:32,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:03:32,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:03:32,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:03:32,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:03:32,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:03:32,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:03:32,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:03:32,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:03:32,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:03:32,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:03:32,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:03:32,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:03:32,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:03:32,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:03:32,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:03:32,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:03:32,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:03:32,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:03:32,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:03:32,605 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 15:03:32,627 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:03:32,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:03:32,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:03:32,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:03:32,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:03:32,628 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:03:32,628 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:03:32,628 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:03:32,628 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:03:32,628 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:03:32,628 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:03:32,628 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:03:32,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 15:03:32,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 15:03:32,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:03:32,630 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:03:32,630 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:03:32,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:03:32,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:03:32,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:03:32,630 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 15:03:32,630 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 15:03:32,631 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 15:03:32,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:03:32,631 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 15:03:32,631 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 15:03:32,631 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 15:03:32,631 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:03:32,631 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:03:32,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:03:32,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 15:03:32,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:03:32,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:03:32,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:03:32,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:03:32,633 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 15:03:32,633 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 15:03:32,633 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:03:32,633 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 15:03:32,633 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_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c20063fdafbef5c00ec1f1fcfed63f5b6ab29c7a5ae9bd5cc27a6dcf474b9797 [2022-12-14 15:03:32,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:03:32,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:03:32,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:03:32,860 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:03:32,860 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:03:32,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-memsafety/memleaks_test13_1.i [2022-12-14 15:03:35,456 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:03:35,679 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:03:35,680 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/sv-benchmarks/c/ldv-memsafety/memleaks_test13_1.i [2022-12-14 15:03:35,688 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/data/c9a3773dc/d17ba31bf66c4ced83cc556980d62e77/FLAG11ecd6d88 [2022-12-14 15:03:35,699 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/data/c9a3773dc/d17ba31bf66c4ced83cc556980d62e77 [2022-12-14 15:03:35,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:03:35,702 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:03:35,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:03:35,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:03:35,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:03:35,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:03:35" (1/1) ... [2022-12-14 15:03:35,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50849e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:03:35, skipping insertion in model container [2022-12-14 15:03:35,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:03:35" (1/1) ... [2022-12-14 15:03:35,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:03:35,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:03:35,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:03:35,990 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 15:03:35,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:03:36,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:03:36,025 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:03:36,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:03:36,084 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:03:36,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:03:36 WrapperNode [2022-12-14 15:03:36,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:03:36,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:03:36,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:03:36,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:03:36,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:03:36" (1/1) ... [2022-12-14 15:03:36,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:03:36" (1/1) ... [2022-12-14 15:03:36,117 INFO L138 Inliner]: procedures = 166, calls = 74, calls flagged for inlining = 21, calls inlined = 4, statements flattened = 22 [2022-12-14 15:03:36,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:03:36,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:03:36,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:03:36,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:03:36,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:03:36" (1/1) ... [2022-12-14 15:03:36,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:03:36" (1/1) ... [2022-12-14 15:03:36,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:03:36" (1/1) ... [2022-12-14 15:03:36,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:03:36" (1/1) ... [2022-12-14 15:03:36,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:03:36" (1/1) ... [2022-12-14 15:03:36,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:03:36" (1/1) ... [2022-12-14 15:03:36,134 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:03:36" (1/1) ... [2022-12-14 15:03:36,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:03:36" (1/1) ... [2022-12-14 15:03:36,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:03:36,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:03:36,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:03:36,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:03:36,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:03:36" (1/1) ... [2022-12-14 15:03:36,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:03:36,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:03:36,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:03:36,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:03:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2022-12-14 15:03:36,189 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2022-12-14 15:03:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2022-12-14 15:03:36,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2022-12-14 15:03:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 15:03:36,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 15:03:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2022-12-14 15:03:36,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2022-12-14 15:03:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:03:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:03:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 15:03:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 15:03:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 15:03:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:03:36,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:03:36,287 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:03:36,289 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:03:36,486 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:03:36,492 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:03:36,492 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 15:03:36,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:03:36 BoogieIcfgContainer [2022-12-14 15:03:36,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:03:36,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:03:36,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:03:36,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:03:36,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:03:35" (1/3) ... [2022-12-14 15:03:36,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58745405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:03:36, skipping insertion in model container [2022-12-14 15:03:36,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:03:36" (2/3) ... [2022-12-14 15:03:36,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58745405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:03:36, skipping insertion in model container [2022-12-14 15:03:36,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:03:36" (3/3) ... [2022-12-14 15:03:36,503 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test13_1.i [2022-12-14 15:03:36,520 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:03:36,521 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-12-14 15:03:36,556 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:03:36,561 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;@3109d631, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:03:36,561 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-12-14 15:03:36,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 25 states have (on average 1.68) internal successors, (42), 41 states have internal predecessors, (42), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:03:36,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 15:03:36,572 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:36,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:36,573 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2022-12-14 15:03:36,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:36,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1806778067, now seen corresponding path program 1 times [2022-12-14 15:03:36,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:03:36,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955442692] [2022-12-14 15:03:36,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:36,591 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 15:03:36,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:03:36,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:36,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:36,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 15:03:36,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:03:36,944 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 15:03:36,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 15:03:37,010 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 15:03:37,011 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:03:37,011 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:03:37,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955442692] [2022-12-14 15:03:37,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [955442692] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:37,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:03:37,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:03:37,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329087066] [2022-12-14 15:03:37,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:37,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 15:03:37,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:03:37,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 15:03:37,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=30, Unknown=1, NotChecked=0, Total=42 [2022-12-14 15:03:37,057 INFO L87 Difference]: Start difference. First operand has 49 states, 25 states have (on average 1.68) internal successors, (42), 41 states have internal predecessors, (42), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 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 15:03:37,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:37,370 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2022-12-14 15:03:37,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:03:37,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 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 12 [2022-12-14 15:03:37,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:37,381 INFO L225 Difference]: With dead ends: 50 [2022-12-14 15:03:37,381 INFO L226 Difference]: Without dead ends: 48 [2022-12-14 15:03:37,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=70, Unknown=1, NotChecked=0, Total=110 [2022-12-14 15:03:37,386 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 106 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 14 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:37,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 41 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 115 Invalid, 14 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 15:03:37,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-12-14 15:03:37,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2022-12-14 15:03:37,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 24 states have (on average 1.625) internal successors, (39), 38 states have internal predecessors, (39), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:03:37,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2022-12-14 15:03:37,418 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 12 [2022-12-14 15:03:37,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:37,419 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2022-12-14 15:03:37,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 1 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 15:03:37,419 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2022-12-14 15:03:37,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 15:03:37,420 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:37,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:37,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:37,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:37,621 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2022-12-14 15:03:37,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:37,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1806778068, now seen corresponding path program 1 times [2022-12-14 15:03:37,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:03:37,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [856602915] [2022-12-14 15:03:37,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:37,624 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 15:03:37,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:03:37,627 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:37,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:37,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 15:03:37,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:03:39,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:39,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 14 [2022-12-14 15:03:40,037 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 15:03:40,038 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:03:40,038 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:03:40,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [856602915] [2022-12-14 15:03:40,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [856602915] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:40,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:03:40,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 15:03:40,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250853673] [2022-12-14 15:03:40,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:40,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 15:03:40,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:03:40,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 15:03:40,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=40, Unknown=2, NotChecked=0, Total=56 [2022-12-14 15:03:40,042 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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 15:03:40,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:40,517 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2022-12-14 15:03:40,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 15:03:40,518 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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 12 [2022-12-14 15:03:40,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:40,519 INFO L225 Difference]: With dead ends: 47 [2022-12-14 15:03:40,519 INFO L226 Difference]: Without dead ends: 47 [2022-12-14 15:03:40,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=48, Invalid=106, Unknown=2, NotChecked=0, Total=156 [2022-12-14 15:03:40,521 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 74 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:40,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 45 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 140 Invalid, 2 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 15:03:40,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-12-14 15:03:40,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2022-12-14 15:03:40,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 37 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:03:40,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2022-12-14 15:03:40,527 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 12 [2022-12-14 15:03:40,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:40,527 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2022-12-14 15:03:40,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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 15:03:40,527 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2022-12-14 15:03:40,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 15:03:40,528 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:40,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:40,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:40,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:40,729 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2022-12-14 15:03:40,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:40,730 INFO L85 PathProgramCache]: Analyzing trace with hash 177362515, now seen corresponding path program 1 times [2022-12-14 15:03:40,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:03:40,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1138541334] [2022-12-14 15:03:40,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:40,730 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 15:03:40,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:03:40,731 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:40,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:40,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:03:40,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:03:40,788 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 15:03:40,788 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:03:40,789 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:03:40,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1138541334] [2022-12-14 15:03:40,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1138541334] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:40,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:03:40,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:03:40,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539074529] [2022-12-14 15:03:40,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:40,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:03:40,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:03:40,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:03:40,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:03:40,791 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 15:03:40,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:40,810 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2022-12-14 15:03:40,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:03:40,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 13 [2022-12-14 15:03:40,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:40,813 INFO L225 Difference]: With dead ends: 55 [2022-12-14 15:03:40,813 INFO L226 Difference]: Without dead ends: 55 [2022-12-14 15:03:40,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 15:03:40,814 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 4 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:40,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 186 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:03:40,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-12-14 15:03:40,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2022-12-14 15:03:40,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 40 states have internal predecessors, (41), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-14 15:03:40,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2022-12-14 15:03:40,823 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 13 [2022-12-14 15:03:40,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:40,824 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2022-12-14 15:03:40,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 15:03:40,824 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2022-12-14 15:03:40,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 15:03:40,824 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:40,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:40,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:41,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:41,026 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2022-12-14 15:03:41,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:41,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1630091948, now seen corresponding path program 1 times [2022-12-14 15:03:41,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:03:41,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031441573] [2022-12-14 15:03:41,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:41,030 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 15:03:41,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:03:41,033 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:41,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:41,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 15:03:41,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:03:41,200 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 15:03:41,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:03:41,200 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:03:41,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031441573] [2022-12-14 15:03:41,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031441573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:41,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:03:41,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:03:41,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617323392] [2022-12-14 15:03:41,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:41,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:03:41,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:03:41,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:03:41,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:03:41,206 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 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 15:03:41,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:41,356 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2022-12-14 15:03:41,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:03:41,356 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 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 13 [2022-12-14 15:03:41,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:41,357 INFO L225 Difference]: With dead ends: 47 [2022-12-14 15:03:41,357 INFO L226 Difference]: Without dead ends: 47 [2022-12-14 15:03:41,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:03:41,358 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 69 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:41,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 38 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:03:41,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-12-14 15:03:41,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-12-14 15:03:41,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 38 states have internal predecessors, (39), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-12-14 15:03:41,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2022-12-14 15:03:41,361 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 13 [2022-12-14 15:03:41,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:41,361 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2022-12-14 15:03:41,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 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 15:03:41,362 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2022-12-14 15:03:41,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 15:03:41,362 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:41,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:41,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:41,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:41,565 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2022-12-14 15:03:41,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:41,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1630091947, now seen corresponding path program 1 times [2022-12-14 15:03:41,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:03:41,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1304934533] [2022-12-14 15:03:41,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:41,569 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 15:03:41,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:03:41,572 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:41,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:41,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 15:03:41,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:03:41,781 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 15:03:41,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:03:41,781 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:03:41,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1304934533] [2022-12-14 15:03:41,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1304934533] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:41,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:03:41,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:03:41,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912360505] [2022-12-14 15:03:41,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:41,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:03:41,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:03:41,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:03:41,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:03:41,783 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 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 15:03:42,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:42,088 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2022-12-14 15:03:42,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:03:42,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 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 13 [2022-12-14 15:03:42,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:42,089 INFO L225 Difference]: With dead ends: 79 [2022-12-14 15:03:42,089 INFO L226 Difference]: Without dead ends: 79 [2022-12-14 15:03:42,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:03:42,090 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 60 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:42,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 136 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 15:03:42,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-12-14 15:03:42,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 68. [2022-12-14 15:03:42,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 42 states have (on average 1.4761904761904763) internal successors, (62), 54 states have internal predecessors, (62), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2022-12-14 15:03:42,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 77 transitions. [2022-12-14 15:03:42,095 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 77 transitions. Word has length 13 [2022-12-14 15:03:42,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:42,095 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 77 transitions. [2022-12-14 15:03:42,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 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 15:03:42,095 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 77 transitions. [2022-12-14 15:03:42,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 15:03:42,096 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:42,096 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:42,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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)] Forceful destruction successful, exit code 0 [2022-12-14 15:03:42,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:42,297 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2022-12-14 15:03:42,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:42,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1195264903, now seen corresponding path program 1 times [2022-12-14 15:03:42,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:03:42,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613434744] [2022-12-14 15:03:42,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:42,301 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 15:03:42,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:03:42,304 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:42,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:42,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 15:03:42,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:03:42,457 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 15:03:42,488 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 15:03:42,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:03:42,488 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:03:42,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613434744] [2022-12-14 15:03:42,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613434744] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:42,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:03:42,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 15:03:42,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956571053] [2022-12-14 15:03:42,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:42,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 15:03:42,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:03:42,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 15:03:42,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:03:42,490 INFO L87 Difference]: Start difference. First operand 68 states and 77 transitions. Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:03:42,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:42,743 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2022-12-14 15:03:42,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 15:03:42,744 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-12-14 15:03:42,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:42,744 INFO L225 Difference]: With dead ends: 77 [2022-12-14 15:03:42,745 INFO L226 Difference]: Without dead ends: 77 [2022-12-14 15:03:42,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-12-14 15:03:42,745 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 42 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:42,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 157 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 15:03:42,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-12-14 15:03:42,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 67. [2022-12-14 15:03:42,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 53 states have internal predecessors, (60), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2022-12-14 15:03:42,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 75 transitions. [2022-12-14 15:03:42,750 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 75 transitions. Word has length 15 [2022-12-14 15:03:42,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:42,750 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 75 transitions. [2022-12-14 15:03:42,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:03:42,750 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2022-12-14 15:03:42,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 15:03:42,750 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:42,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:42,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:42,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:42,952 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2022-12-14 15:03:42,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:42,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1195264904, now seen corresponding path program 1 times [2022-12-14 15:03:42,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:03:42,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661951690] [2022-12-14 15:03:42,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:42,955 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 15:03:42,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:03:42,958 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:42,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:43,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-14 15:03:43,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:03:45,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:45,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 14 [2022-12-14 15:03:45,359 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 15:03:45,364 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 15:03:45,454 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 15:03:45,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:03:45,454 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:03:45,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661951690] [2022-12-14 15:03:45,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661951690] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:45,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:03:45,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 15:03:45,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299046479] [2022-12-14 15:03:45,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:45,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 15:03:45,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:03:45,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 15:03:45,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=88, Unknown=2, NotChecked=0, Total=110 [2022-12-14 15:03:45,456 INFO L87 Difference]: Start difference. First operand 67 states and 75 transitions. Second operand has 11 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:03:46,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:46,299 INFO L93 Difference]: Finished difference Result 71 states and 79 transitions. [2022-12-14 15:03:46,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 15:03:46,300 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-12-14 15:03:46,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:46,300 INFO L225 Difference]: With dead ends: 71 [2022-12-14 15:03:46,300 INFO L226 Difference]: Without dead ends: 71 [2022-12-14 15:03:46,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=91, Invalid=287, Unknown=2, NotChecked=0, Total=380 [2022-12-14 15:03:46,301 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 69 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 25 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:46,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 127 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 201 Invalid, 2 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 15:03:46,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-12-14 15:03:46,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 66. [2022-12-14 15:03:46,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 42 states have (on average 1.380952380952381) internal successors, (58), 52 states have internal predecessors, (58), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2022-12-14 15:03:46,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 73 transitions. [2022-12-14 15:03:46,305 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 73 transitions. Word has length 15 [2022-12-14 15:03:46,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:46,305 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 73 transitions. [2022-12-14 15:03:46,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:03:46,305 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 73 transitions. [2022-12-14 15:03:46,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 15:03:46,306 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:46,306 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:46,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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)] Forceful destruction successful, exit code 0 [2022-12-14 15:03:46,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:46,508 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __ldv_list_addErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2022-12-14 15:03:46,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:46,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1601493656, now seen corresponding path program 1 times [2022-12-14 15:03:46,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:03:46,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2058626634] [2022-12-14 15:03:46,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:46,511 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 15:03:46,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:03:46,514 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:46,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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)] Waiting until timeout for monitored process [2022-12-14 15:03:46,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:46,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 15:03:46,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:03:46,581 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 15:03:46,655 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 15:03:46,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:03:46,656 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:03:46,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2058626634] [2022-12-14 15:03:46,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2058626634] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:46,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:03:46,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 15:03:46,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951147462] [2022-12-14 15:03:46,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:46,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 15:03:46,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:03:46,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 15:03:46,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:03:46,658 INFO L87 Difference]: Start difference. First operand 66 states and 73 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:03:46,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:46,973 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2022-12-14 15:03:46,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 15:03:46,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 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 15:03:46,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:46,974 INFO L225 Difference]: With dead ends: 72 [2022-12-14 15:03:46,974 INFO L226 Difference]: Without dead ends: 72 [2022-12-14 15:03:46,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-14 15:03:46,975 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 33 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:46,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 169 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 15:03:46,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-12-14 15:03:46,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 65. [2022-12-14 15:03:46,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 51 states have internal predecessors, (55), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2022-12-14 15:03:46,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 70 transitions. [2022-12-14 15:03:46,978 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 70 transitions. Word has length 16 [2022-12-14 15:03:46,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:46,978 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 70 transitions. [2022-12-14 15:03:46,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:03:46,978 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 70 transitions. [2022-12-14 15:03:46,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 15:03:46,979 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:46,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:46,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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)] Ended with exit code 0 [2022-12-14 15:03:47,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:47,181 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __ldv_list_addErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2022-12-14 15:03:47,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:47,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1601493655, now seen corresponding path program 1 times [2022-12-14 15:03:47,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:03:47,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984619151] [2022-12-14 15:03:47,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:47,185 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 15:03:47,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:03:47,186 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:47,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 (10)] Waiting until timeout for monitored process [2022-12-14 15:03:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:47,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 15:03:47,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:03:47,253 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 15:03:47,395 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 15:03:47,395 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:03:47,395 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:03:47,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984619151] [2022-12-14 15:03:47,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984619151] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:47,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:03:47,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 15:03:47,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94913185] [2022-12-14 15:03:47,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:47,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 15:03:47,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:03:47,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 15:03:47,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-14 15:03:47,396 INFO L87 Difference]: Start difference. First operand 65 states and 70 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:03:47,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:47,794 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2022-12-14 15:03:47,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 15:03:47,795 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 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 15:03:47,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:47,796 INFO L225 Difference]: With dead ends: 70 [2022-12-14 15:03:47,796 INFO L226 Difference]: Without dead ends: 70 [2022-12-14 15:03:47,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-12-14 15:03:47,796 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 27 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:47,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 213 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 15:03:47,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-12-14 15:03:47,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2022-12-14 15:03:47,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 51 states have internal predecessors, (53), 7 states have call successors, (7), 7 states have call predecessors, (7), 8 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2022-12-14 15:03:47,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2022-12-14 15:03:47,800 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 16 [2022-12-14 15:03:47,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:47,800 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2022-12-14 15:03:47,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 7 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:03:47,800 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2022-12-14 15:03:47,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 15:03:47,800 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:47,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:47,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 (10)] Forceful destruction successful, exit code 0 [2022-12-14 15:03:48,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:48,002 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __ldv_list_addErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2022-12-14 15:03:48,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:48,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1472410937, now seen corresponding path program 1 times [2022-12-14 15:03:48,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:03:48,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498920348] [2022-12-14 15:03:48,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:48,005 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 15:03:48,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:03:48,008 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:48,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:48,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 15:03:48,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:03:48,188 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 15:03:48,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:03:48,189 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:03:48,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498920348] [2022-12-14 15:03:48,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498920348] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:48,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:03:48,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:03:48,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000149853] [2022-12-14 15:03:48,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:48,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:03:48,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:03:48,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:03:48,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:03:48,190 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:03:48,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:48,209 INFO L93 Difference]: Finished difference Result 51 states and 50 transitions. [2022-12-14 15:03:48,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:03:48,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 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 15:03:48,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:48,210 INFO L225 Difference]: With dead ends: 51 [2022-12-14 15:03:48,210 INFO L226 Difference]: Without dead ends: 51 [2022-12-14 15:03:48,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 15:03:48,211 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 4 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:48,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 148 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:03:48,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-12-14 15:03:48,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2022-12-14 15:03:48,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 32 states have (on average 1.15625) internal successors, (37), 37 states have internal predecessors, (37), 5 states have call successors, (5), 5 states have call predecessors, (5), 6 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-14 15:03:48,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2022-12-14 15:03:48,214 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 16 [2022-12-14 15:03:48,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:48,215 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2022-12-14 15:03:48,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:03:48,215 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2022-12-14 15:03:48,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 15:03:48,215 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:48,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:48,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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)] Forceful destruction successful, exit code 0 [2022-12-14 15:03:48,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:48,418 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __ldv_list_addErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2022-12-14 15:03:48,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:48,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1437110869, now seen corresponding path program 1 times [2022-12-14 15:03:48,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:03:48,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449519174] [2022-12-14 15:03:48,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:48,421 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 15:03:48,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:03:48,424 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:48,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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)] Waiting until timeout for monitored process [2022-12-14 15:03:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:48,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:03:48,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:03:48,592 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 15:03:48,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:03:48,592 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:03:48,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449519174] [2022-12-14 15:03:48,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449519174] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:48,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:03:48,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:03:48,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765011524] [2022-12-14 15:03:48,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:48,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:03:48,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:03:48,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:03:48,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:03:48,593 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand has 5 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:03:48,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:48,679 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2022-12-14 15:03:48,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:03:48,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-12-14 15:03:48,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:48,680 INFO L225 Difference]: With dead ends: 47 [2022-12-14 15:03:48,680 INFO L226 Difference]: Without dead ends: 47 [2022-12-14 15:03:48,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:03:48,681 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 12 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:48,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 88 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:03:48,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-12-14 15:03:48,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-12-14 15:03:48,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 32 states have (on average 1.125) internal successors, (36), 36 states have internal predecessors, (36), 5 states have call successors, (5), 5 states have call predecessors, (5), 6 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-14 15:03:48,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2022-12-14 15:03:48,685 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 18 [2022-12-14 15:03:48,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:48,685 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2022-12-14 15:03:48,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:03:48,685 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2022-12-14 15:03:48,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 15:03:48,686 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:48,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:48,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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)] Forceful destruction successful, exit code 0 [2022-12-14 15:03:48,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:48,887 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __ldv_list_addErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2022-12-14 15:03:48,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:48,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1437110868, now seen corresponding path program 1 times [2022-12-14 15:03:48,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:03:48,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321468142] [2022-12-14 15:03:48,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:48,890 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 15:03:48,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:03:48,893 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:48,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 (13)] Waiting until timeout for monitored process [2022-12-14 15:03:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:48,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 15:03:48,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:03:49,081 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 15:03:49,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:03:49,081 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:03:49,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321468142] [2022-12-14 15:03:49,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [321468142] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:49,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:03:49,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 15:03:49,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031421844] [2022-12-14 15:03:49,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:49,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 15:03:49,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:03:49,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 15:03:49,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:03:49,083 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:03:49,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:49,263 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2022-12-14 15:03:49,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 15:03:49,264 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-12-14 15:03:49,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:49,265 INFO L225 Difference]: With dead ends: 46 [2022-12-14 15:03:49,265 INFO L226 Difference]: Without dead ends: 46 [2022-12-14 15:03:49,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-12-14 15:03:49,266 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 40 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:49,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 112 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:03:49,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-14 15:03:49,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-12-14 15:03:49,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 32 states have (on average 1.09375) internal successors, (35), 35 states have internal predecessors, (35), 5 states have call successors, (5), 5 states have call predecessors, (5), 6 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-12-14 15:03:49,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2022-12-14 15:03:49,270 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 18 [2022-12-14 15:03:49,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:49,270 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2022-12-14 15:03:49,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:03:49,270 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2022-12-14 15:03:49,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 15:03:49,271 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:49,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:49,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 (13)] Ended with exit code 0 [2022-12-14 15:03:49,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:49,472 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2022-12-14 15:03:49,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:49,474 INFO L85 PathProgramCache]: Analyzing trace with hash -245688502, now seen corresponding path program 1 times [2022-12-14 15:03:49,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:03:49,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408432933] [2022-12-14 15:03:49,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:49,475 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 15:03:49,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:03:49,478 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:49,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:49,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 15:03:49,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:03:49,620 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 15:03:49,620 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:03:49,621 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:03:49,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408432933] [2022-12-14 15:03:49,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408432933] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:49,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:03:49,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:03:49,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108642415] [2022-12-14 15:03:49,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:49,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:03:49,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:03:49,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:03:49,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:03:49,622 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:03:49,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:49,715 INFO L93 Difference]: Finished difference Result 48 states and 47 transitions. [2022-12-14 15:03:49,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:03:49,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-12-14 15:03:49,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:49,716 INFO L225 Difference]: With dead ends: 48 [2022-12-14 15:03:49,716 INFO L226 Difference]: Without dead ends: 35 [2022-12-14 15:03:49,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 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 15:03:49,717 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 17 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:49,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 36 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:03:49,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-12-14 15:03:49,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-12-14 15:03:49,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 26 states have internal predecessors, (26), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:03:49,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2022-12-14 15:03:49,720 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 18 [2022-12-14 15:03:49,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:49,720 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2022-12-14 15:03:49,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 15:03:49,720 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2022-12-14 15:03:49,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 15:03:49,721 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:49,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:49,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:49,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:49,922 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2022-12-14 15:03:49,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:49,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1690332874, now seen corresponding path program 1 times [2022-12-14 15:03:49,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:03:49,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466188354] [2022-12-14 15:03:49,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:49,925 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 15:03:49,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:03:49,928 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:49,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:50,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 15:03:50,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:03:50,229 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 15:03:50,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:03:50,229 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:03:50,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466188354] [2022-12-14 15:03:50,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [466188354] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:50,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:03:50,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 15:03:50,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689492801] [2022-12-14 15:03:50,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:50,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 15:03:50,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:03:50,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 15:03:50,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:03:50,231 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 15:03:50,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:50,485 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2022-12-14 15:03:50,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 15:03:50,486 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2022-12-14 15:03:50,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:50,486 INFO L225 Difference]: With dead ends: 34 [2022-12-14 15:03:50,486 INFO L226 Difference]: Without dead ends: 34 [2022-12-14 15:03:50,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-12-14 15:03:50,487 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 31 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:50,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 85 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 15:03:50,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-12-14 15:03:50,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-12-14 15:03:50,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 25 states have internal predecessors, (25), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:03:50,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2022-12-14 15:03:50,489 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 27 [2022-12-14 15:03:50,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:50,489 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2022-12-14 15:03:50,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 15:03:50,489 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2022-12-14 15:03:50,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 15:03:50,490 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:50,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:50,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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)] Ended with exit code 0 [2022-12-14 15:03:50,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:50,691 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2022-12-14 15:03:50,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:50,693 INFO L85 PathProgramCache]: Analyzing trace with hash -860711565, now seen corresponding path program 1 times [2022-12-14 15:03:50,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:03:50,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805921689] [2022-12-14 15:03:50,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:50,694 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 15:03:50,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:03:50,697 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:50,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:50,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 15:03:50,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:03:50,904 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 7 treesize of output 3 [2022-12-14 15:03:50,913 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 7 treesize of output 3 [2022-12-14 15:03:51,170 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 23 treesize of output 15 [2022-12-14 15:03:51,174 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 19 treesize of output 11 [2022-12-14 15:03:51,289 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 15:03:51,290 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:03:51,290 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:03:51,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805921689] [2022-12-14 15:03:51,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805921689] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:51,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:03:51,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 15:03:51,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985523380] [2022-12-14 15:03:51,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:51,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 15:03:51,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:03:51,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 15:03:51,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-14 15:03:51,292 INFO L87 Difference]: Start difference. First operand 34 states and 33 transitions. Second operand has 13 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 15:03:52,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:52,031 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2022-12-14 15:03:52,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 15:03:52,032 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2022-12-14 15:03:52,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:52,032 INFO L225 Difference]: With dead ends: 33 [2022-12-14 15:03:52,032 INFO L226 Difference]: Without dead ends: 33 [2022-12-14 15:03:52,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2022-12-14 15:03:52,033 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 36 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:52,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 105 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 15:03:52,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-12-14 15:03:52,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-12-14 15:03:52,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 24 states have (on average 1.0) internal successors, (24), 24 states have internal predecessors, (24), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 15:03:52,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2022-12-14 15:03:52,034 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 28 [2022-12-14 15:03:52,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:52,035 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2022-12-14 15:03:52,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 15:03:52,035 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2022-12-14 15:03:52,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 15:03:52,035 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:52,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:52,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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)] Ended with exit code 0 [2022-12-14 15:03:52,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:52,237 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 12 more)] === [2022-12-14 15:03:52,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:52,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1571524617, now seen corresponding path program 1 times [2022-12-14 15:03:52,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:03:52,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2120770038] [2022-12-14 15:03:52,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:52,239 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 15:03:52,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:03:52,242 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:52,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 (17)] Waiting until timeout for monitored process [2022-12-14 15:03:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:03:52,377 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 15:03:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:03:52,466 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 15:03:52,466 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 15:03:52,467 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (14 of 15 remaining) [2022-12-14 15:03:52,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 15 remaining) [2022-12-14 15:03:52,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 15 remaining) [2022-12-14 15:03:52,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 15 remaining) [2022-12-14 15:03:52,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2022-12-14 15:03:52,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2022-12-14 15:03:52,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2022-12-14 15:03:52,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2022-12-14 15:03:52,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining) [2022-12-14 15:03:52,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2022-12-14 15:03:52,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2022-12-14 15:03:52,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 15 remaining) [2022-12-14 15:03:52,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 15 remaining) [2022-12-14 15:03:52,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 15 remaining) [2022-12-14 15:03:52,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 15 remaining) [2022-12-14 15:03:52,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 (17)] Ended with exit code 0 [2022-12-14 15:03:52,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 15:03:52,675 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:52,677 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:03:52,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:03:52 BoogieIcfgContainer [2022-12-14 15:03:52,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:03:52,697 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:03:52,697 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:03:52,697 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:03:52,697 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:03:36" (3/4) ... [2022-12-14 15:03:52,699 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 15:03:52,699 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:03:52,700 INFO L158 Benchmark]: Toolchain (without parser) took 16998.27ms. Allocated memory was 58.7MB in the beginning and 86.0MB in the end (delta: 27.3MB). Free memory was 35.6MB in the beginning and 51.1MB in the end (delta: -15.5MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2022-12-14 15:03:52,700 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 46.1MB. Free memory was 25.1MB in the beginning and 25.0MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:03:52,700 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.98ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 35.5MB in the beginning and 45.7MB in the end (delta: -10.3MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2022-12-14 15:03:52,700 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.04ms. Allocated memory is still 71.3MB. Free memory was 45.7MB in the beginning and 43.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:03:52,700 INFO L158 Benchmark]: Boogie Preprocessor took 18.84ms. Allocated memory is still 71.3MB. Free memory was 43.4MB in the beginning and 41.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:03:52,701 INFO L158 Benchmark]: RCFGBuilder took 356.80ms. Allocated memory is still 71.3MB. Free memory was 41.9MB in the beginning and 42.7MB in the end (delta: -800.9kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 15:03:52,701 INFO L158 Benchmark]: TraceAbstraction took 16199.88ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 42.0MB in the beginning and 51.1MB in the end (delta: -9.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-12-14 15:03:52,701 INFO L158 Benchmark]: Witness Printer took 2.45ms. Allocated memory is still 86.0MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:03:52,702 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 46.1MB. Free memory was 25.1MB in the beginning and 25.0MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.98ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 35.5MB in the beginning and 45.7MB in the end (delta: -10.3MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.04ms. Allocated memory is still 71.3MB. Free memory was 45.7MB in the beginning and 43.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.84ms. Allocated memory is still 71.3MB. Free memory was 43.4MB in the beginning and 41.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 356.80ms. Allocated memory is still 71.3MB. Free memory was 41.9MB in the beginning and 42.7MB in the end (delta: -800.9kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 16199.88ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 42.0MB in the beginning and 51.1MB in the end (delta: -9.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * Witness Printer took 2.45ms. Allocated memory is still 86.0MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 772]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 772. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L757] struct ldv_list_head global_list_13 = { &(global_list_13), &(global_list_13) }; VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}] [L773] CALL entry_point() [L769] CALL alloc_13() [L763] CALL, EXPR ldv_malloc(sizeof(struct A13)) VAL [\old(size)=12, global_list_13={2:0}, ldv_global_msg_list={1:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L763] RET, EXPR ldv_malloc(sizeof(struct A13)) VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, ldv_malloc(sizeof(struct A13))={6:0}] [L763] struct A13 *p = (struct A13 *)ldv_malloc(sizeof(struct A13)); [L764] COND TRUE \read(*p) VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, p={6:0}] [L765] CALL ldv_list_add(&p->list, &global_list_13) VAL [global_list_13={2:0}, head={2:0}, ldv_global_msg_list={1:0}, new={6:4}] [L559] EXPR head->next VAL [global_list_13={2:0}, head={2:0}, head={2:0}, head->next={2:0}, ldv_global_msg_list={1:0}, new={6:4}, new={6:4}] [L559] CALL __ldv_list_add(new, head, head->next) VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, new={6:4}, next={2:0}, prev={2:0}] [L547] next->prev = new VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, new={6:4}, new={6:4}, next={2:0}, next={2:0}, prev={2:0}, prev={2:0}] [L548] new->next = next VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, new={6:4}, new={6:4}, next={2:0}, next={2:0}, prev={2:0}, prev={2:0}] [L549] new->prev = prev VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, new={6:4}, new={6:4}, next={2:0}, next={2:0}, prev={2:0}, prev={2:0}] [L550] prev->next = new VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, new={6:4}, new={6:4}, next={2:0}, next={2:0}, prev={2:0}, prev={2:0}] [L559] RET __ldv_list_add(new, head, head->next) VAL [global_list_13={2:0}, head={2:0}, head={2:0}, head->next={2:0}, ldv_global_msg_list={1:0}, new={6:4}, new={6:4}] [L765] RET ldv_list_add(&p->list, &global_list_13) VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, p={6:0}] [L769] RET alloc_13() [L770] CALL LDV_INIT_LIST_HEAD(&global_list_13) VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, list={2:0}] [L540] list->next = list VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, list={2:0}, list={2:0}] [L541] list->prev = list VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}, list={2:0}, list={2:0}] [L770] RET LDV_INIT_LIST_HEAD(&global_list_13) VAL [global_list_13={2:0}, ldv_global_msg_list={1:0}] [L773] RET entry_point() - 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: -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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 49 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 16.1s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 mSolverCounterUnknown, 644 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 624 mSDsluCounter, 1686 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1275 mSDsCounter, 104 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1633 IncrementalHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 104 mSolverCounterUnsat, 411 mSDtfsCounter, 1633 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 290 GetRequests, 150 SyntacticMatches, 2 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=5, InterpolantAutomatonStates: 121, 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, 15 MinimizatonAttempts, 51 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 282 NumberOfCodeBlocks, 282 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 235 ConstructedInterpolants, 6 QuantifiedInterpolants, 1950 SizeOfPredicates, 66 NumberOfNonLiveVariables, 1379 ConjunctsInSsa, 169 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 15:03:52,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e4c61c-af22-42e5-bbed-d2e3e622a6a6/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 Result: UNKNOWN: Overapproximated counterexample