./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.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_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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_66cce23a-6726-4f52-bad7-e773eb1860df/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 b68a60a1004db041631656acc5775ad13321e46c020cb1a181ddf112036ec7ab --- 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 10:03:10,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:03:10,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:03:10,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:03:10,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:03:10,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:03:10,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:03:10,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:03:10,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:03:10,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:03:10,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:03:10,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:03:10,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:03:10,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:03:10,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:03:10,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:03:10,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:03:10,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:03:10,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:03:10,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:03:10,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:03:10,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:03:10,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:03:10,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:03:10,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:03:10,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:03:10,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:03:10,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:03:10,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:03:10,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:03:10,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:03:10,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:03:10,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:03:10,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:03:10,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:03:10,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:03:10,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:03:10,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:03:10,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:03:10,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:03:10,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:03:10,667 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 10:03:10,688 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:03:10,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:03:10,689 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:03:10,689 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:03:10,690 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:03:10,690 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:03:10,690 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:03:10,690 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:03:10,691 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:03:10,691 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:03:10,691 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:03:10,691 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:03:10,691 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:03:10,692 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:03:10,692 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:03:10,692 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:03:10,692 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:03:10,692 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:03:10,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 10:03:10,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 10:03:10,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:03:10,694 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:03:10,694 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:03:10,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:03:10,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:03:10,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:03:10,695 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 10:03:10,695 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 10:03:10,695 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 10:03:10,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:03:10,695 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 10:03:10,695 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:03:10,696 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:03:10,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:03:10,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:03:10,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:03:10,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:03:10,697 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:03:10,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:03:10,697 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:03:10,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:03:10,697 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:03:10,698 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_66cce23a-6726-4f52-bad7-e773eb1860df/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b68a60a1004db041631656acc5775ad13321e46c020cb1a181ddf112036ec7ab [2022-12-14 10:03:10,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:03:10,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:03:10,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:03:10,903 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:03:10,903 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:03:10,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2022-12-14 10:03:13,473 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:03:13,690 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:03:13,690 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2022-12-14 10:03:13,701 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/data/79997905e/6968f931209d41df94ed51498a921db2/FLAG548e08147 [2022-12-14 10:03:13,715 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/data/79997905e/6968f931209d41df94ed51498a921db2 [2022-12-14 10:03:13,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:03:13,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:03:13,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:03:13,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:03:13,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:03:13,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:03:13" (1/1) ... [2022-12-14 10:03:13,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c47d505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:13, skipping insertion in model container [2022-12-14 10:03:13,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:03:13" (1/1) ... [2022-12-14 10:03:13,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:03:13,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:03:14,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:03:14,074 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 10:03:14,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@23f0cc5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:14, skipping insertion in model container [2022-12-14 10:03:14,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:03:14,075 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-14 10:03:14,076 INFO L158 Benchmark]: Toolchain (without parser) took 356.90ms. Allocated memory is still 125.8MB. Free memory was 84.5MB in the beginning and 71.2MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 10:03:14,076 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 125.8MB. Free memory was 90.1MB in the beginning and 90.0MB in the end (delta: 24.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:03:14,077 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.81ms. Allocated memory is still 125.8MB. Free memory was 84.5MB in the beginning and 71.2MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 10:03:14,078 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 125.8MB. Free memory was 90.1MB in the beginning and 90.0MB in the end (delta: 24.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.81ms. Allocated memory is still 125.8MB. Free memory was 84.5MB in the beginning and 71.2MB in the end (delta: 13.4MB). 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_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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_66cce23a-6726-4f52-bad7-e773eb1860df/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 b68a60a1004db041631656acc5775ad13321e46c020cb1a181ddf112036ec7ab --- 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 10:03:15,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:03:15,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:03:15,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:03:15,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:03:15,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:03:15,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:03:15,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:03:15,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:03:15,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:03:15,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:03:15,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:03:15,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:03:15,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:03:15,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:03:15,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:03:15,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:03:15,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:03:15,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:03:15,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:03:15,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:03:15,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:03:15,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:03:15,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:03:15,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:03:15,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:03:15,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:03:15,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:03:15,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:03:15,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:03:15,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:03:15,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:03:15,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:03:15,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:03:15,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:03:15,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:03:15,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:03:15,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:03:15,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:03:15,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:03:15,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:03:15,543 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 10:03:15,560 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:03:15,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:03:15,560 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:03:15,560 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:03:15,561 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:03:15,561 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:03:15,561 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:03:15,561 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:03:15,561 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:03:15,561 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:03:15,561 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:03:15,562 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:03:15,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 10:03:15,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 10:03:15,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:03:15,562 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:03:15,563 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:03:15,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:03:15,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:03:15,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:03:15,563 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 10:03:15,563 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 10:03:15,563 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 10:03:15,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:03:15,563 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 10:03:15,564 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 10:03:15,564 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 10:03:15,564 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:03:15,564 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:03:15,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:03:15,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 10:03:15,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:03:15,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:03:15,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:03:15,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:03:15,565 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 10:03:15,565 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 10:03:15,565 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:03:15,565 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 10:03:15,565 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_66cce23a-6726-4f52-bad7-e773eb1860df/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b68a60a1004db041631656acc5775ad13321e46c020cb1a181ddf112036ec7ab [2022-12-14 10:03:15,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:03:15,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:03:15,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:03:15,818 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:03:15,818 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:03:15,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2022-12-14 10:03:18,404 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:03:18,613 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:03:18,614 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2022-12-14 10:03:18,623 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/data/55b33deaa/ed87120c4abb4e61b884958d3773ec14/FLAG7c8c9274a [2022-12-14 10:03:18,963 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/data/55b33deaa/ed87120c4abb4e61b884958d3773ec14 [2022-12-14 10:03:18,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:03:18,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:03:18,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:03:18,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:03:18,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:03:18,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:03:18" (1/1) ... [2022-12-14 10:03:18,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7abbe655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:18, skipping insertion in model container [2022-12-14 10:03:18,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:03:18" (1/1) ... [2022-12-14 10:03:18,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:03:19,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:03:19,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:03:19,305 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 10:03:19,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:03:19,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:03:19,353 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:03:19,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:03:19,412 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:03:19,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:19 WrapperNode [2022-12-14 10:03:19,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:03:19,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:03:19,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:03:19,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:03:19,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:19" (1/1) ... [2022-12-14 10:03:19,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:19" (1/1) ... [2022-12-14 10:03:19,445 INFO L138 Inliner]: procedures = 166, calls = 70, calls flagged for inlining = 22, calls inlined = 4, statements flattened = 23 [2022-12-14 10:03:19,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:03:19,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:03:19,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:03:19,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:03:19,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:19" (1/1) ... [2022-12-14 10:03:19,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:19" (1/1) ... [2022-12-14 10:03:19,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:19" (1/1) ... [2022-12-14 10:03:19,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:19" (1/1) ... [2022-12-14 10:03:19,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:19" (1/1) ... [2022-12-14 10:03:19,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:19" (1/1) ... [2022-12-14 10:03:19,476 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:19" (1/1) ... [2022-12-14 10:03:19,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:19" (1/1) ... [2022-12-14 10:03:19,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:03:19,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:03:19,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:03:19,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:03:19,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:19" (1/1) ... [2022-12-14 10:03:19,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:03:19,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:03:19,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:03:19,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:03:19,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 10:03:19,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 10:03:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 10:03:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:03:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:03:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 10:03:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:03:19,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:03:19,632 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:03:19,633 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:03:19,719 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:03:19,724 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:03:19,724 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:03:19,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:03:19 BoogieIcfgContainer [2022-12-14 10:03:19,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:03:19,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:03:19,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:03:19,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:03:19,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:03:18" (1/3) ... [2022-12-14 10:03:19,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4422019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:03:19, skipping insertion in model container [2022-12-14 10:03:19,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:19" (2/3) ... [2022-12-14 10:03:19,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4422019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:03:19, skipping insertion in model container [2022-12-14 10:03:19,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:03:19" (3/3) ... [2022-12-14 10:03:19,733 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test3-2.i [2022-12-14 10:03:19,747 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:03:19,748 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 10:03:19,779 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:03:19,784 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1f193dcd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:03:19,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 10:03:19,787 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:03:19,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 10:03:19,793 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:03:19,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:03:19,793 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-12-14 10:03:19,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:03:19,797 INFO L85 PathProgramCache]: Analyzing trace with hash 810737947, now seen corresponding path program 1 times [2022-12-14 10:03:19,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 10:03:19,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987210313] [2022-12-14 10:03:19,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:03:19,807 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 10:03:19,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 10:03:19,809 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:19,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:03:19,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:03:19,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:03:19,987 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 10:03:19,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:03:19,987 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 10:03:19,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987210313] [2022-12-14 10:03:19,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987210313] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:03:19,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:03:19,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:03:19,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092286574] [2022-12-14 10:03:19,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:03:19,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:03:19,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 10:03:20,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:03:20,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:03:20,017 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:03:20,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:03:20,067 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-12-14 10:03:20,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:03:20,069 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-14 10:03:20,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:03:20,074 INFO L225 Difference]: With dead ends: 20 [2022-12-14 10:03:20,074 INFO L226 Difference]: Without dead ends: 18 [2022-12-14 10:03:20,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:03:20,078 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:03:20,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 56 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:03:20,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-14 10:03:20,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-14 10:03:20,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 15 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:03:20,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-12-14 10:03:20,100 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 11 [2022-12-14 10:03:20,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:03:20,101 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-12-14 10:03:20,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:03:20,101 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-12-14 10:03:20,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 10:03:20,101 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:03:20,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:03:20,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:20,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:20,302 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-12-14 10:03:20,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:03:20,303 INFO L85 PathProgramCache]: Analyzing trace with hash -636919425, now seen corresponding path program 1 times [2022-12-14 10:03:20,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 10:03:20,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127302478] [2022-12-14 10:03:20,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:03:20,304 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 10:03:20,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 10:03:20,305 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:20,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:03:20,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:03:20,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:03:20,386 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 10:03:20,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:03:20,386 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 10:03:20,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127302478] [2022-12-14 10:03:20,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127302478] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:03:20,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:03:20,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 10:03:20,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263616190] [2022-12-14 10:03:20,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:03:20,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:03:20,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 10:03:20,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:03:20,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:03:20,389 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:03:20,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:03:20,440 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2022-12-14 10:03:20,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:03:20,440 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-12-14 10:03:20,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:03:20,441 INFO L225 Difference]: With dead ends: 31 [2022-12-14 10:03:20,441 INFO L226 Difference]: Without dead ends: 31 [2022-12-14 10:03:20,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:03:20,443 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:03:20,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 64 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:03:20,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-12-14 10:03:20,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2022-12-14 10:03:20,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 10:03:20,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-12-14 10:03:20,448 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 12 [2022-12-14 10:03:20,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:03:20,449 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-12-14 10:03:20,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:03:20,449 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-12-14 10:03:20,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 10:03:20,450 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:03:20,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:03:20,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:20,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:20,651 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-12-14 10:03:20,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:03:20,652 INFO L85 PathProgramCache]: Analyzing trace with hash -636927370, now seen corresponding path program 1 times [2022-12-14 10:03:20,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 10:03:20,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929517395] [2022-12-14 10:03:20,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:03:20,653 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 10:03:20,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 10:03:20,654 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:20,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:03:20,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 10:03:20,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:03:20,882 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 10:03:20,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:03:20,882 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 10:03:20,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929517395] [2022-12-14 10:03:20,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929517395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:03:20,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:03:20,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:03:20,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540955310] [2022-12-14 10:03:20,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:03:20,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 10:03:20,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 10:03:20,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 10:03:20,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:03:20,885 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:03:20,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:03:20,971 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2022-12-14 10:03:20,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:03:20,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-12-14 10:03:20,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:03:20,972 INFO L225 Difference]: With dead ends: 30 [2022-12-14 10:03:20,973 INFO L226 Difference]: Without dead ends: 30 [2022-12-14 10:03:20,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:03:20,973 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 30 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:03:20,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 47 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:03:20,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-12-14 10:03:20,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2022-12-14 10:03:20,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 10:03:20,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-12-14 10:03:20,976 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 12 [2022-12-14 10:03:20,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:03:20,977 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-12-14 10:03:20,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:03:20,977 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-12-14 10:03:20,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 10:03:20,977 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:03:20,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:03:20,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:21,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:21,179 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-12-14 10:03:21,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:03:21,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1105890910, now seen corresponding path program 1 times [2022-12-14 10:03:21,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 10:03:21,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [960078729] [2022-12-14 10:03:21,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:03:21,183 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 10:03:21,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 10:03:21,186 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:21,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:03:21,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 10:03:21,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:03:21,333 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 10:03:21,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:03:21,333 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 10:03:21,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [960078729] [2022-12-14 10:03:21,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [960078729] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:03:21,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:03:21,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:03:21,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658469380] [2022-12-14 10:03:21,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:03:21,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:03:21,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 10:03:21,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:03:21,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:03:21,335 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:03:21,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:03:21,355 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2022-12-14 10:03:21,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:03:21,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-12-14 10:03:21,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:03:21,355 INFO L225 Difference]: With dead ends: 29 [2022-12-14 10:03:21,355 INFO L226 Difference]: Without dead ends: 27 [2022-12-14 10:03:21,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 10:03:21,356 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 5 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:03:21,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 49 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:03:21,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-14 10:03:21,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2022-12-14 10:03:21,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 21 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 10:03:21,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2022-12-14 10:03:21,359 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 12 [2022-12-14 10:03:21,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:03:21,359 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2022-12-14 10:03:21,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:03:21,359 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2022-12-14 10:03:21,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 10:03:21,359 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:03:21,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:03:21,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:21,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:21,562 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-12-14 10:03:21,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:03:21,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1105882965, now seen corresponding path program 1 times [2022-12-14 10:03:21,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 10:03:21,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1707961137] [2022-12-14 10:03:21,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:03:21,565 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 10:03:21,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 10:03:21,568 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:21,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:03:21,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 10:03:21,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:03:21,723 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 10:03:21,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:03:21,723 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 10:03:21,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1707961137] [2022-12-14 10:03:21,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1707961137] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:03:21,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:03:21,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 10:03:21,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259388717] [2022-12-14 10:03:21,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:03:21,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:03:21,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 10:03:21,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:03:21,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:03:21,725 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:03:21,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:03:21,754 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2022-12-14 10:03:21,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:03:21,755 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-12-14 10:03:21,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:03:21,755 INFO L225 Difference]: With dead ends: 22 [2022-12-14 10:03:21,755 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 10:03:21,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:03:21,757 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:03:21,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 78 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:03:21,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 10:03:21,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-14 10:03:21,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 14 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:03:21,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2022-12-14 10:03:21,760 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 12 [2022-12-14 10:03:21,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:03:21,760 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2022-12-14 10:03:21,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:03:21,760 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2022-12-14 10:03:21,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 10:03:21,761 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:03:21,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:03:21,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:21,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:21,962 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-12-14 10:03:21,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:03:21,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1730088061, now seen corresponding path program 1 times [2022-12-14 10:03:21,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 10:03:21,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147740746] [2022-12-14 10:03:21,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:03:21,963 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 10:03:21,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 10:03:21,964 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:21,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:03:22,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 10:03:22,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:03:22,030 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 10:03:22,067 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 10:03:22,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:03:22,067 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 10:03:22,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147740746] [2022-12-14 10:03:22,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147740746] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:03:22,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:03:22,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:03:22,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207241091] [2022-12-14 10:03:22,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:03:22,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:03:22,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 10:03:22,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:03:22,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:03:22,069 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:03:22,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:03:22,103 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2022-12-14 10:03:22,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:03:22,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-12-14 10:03:22,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:03:22,104 INFO L225 Difference]: With dead ends: 16 [2022-12-14 10:03:22,104 INFO L226 Difference]: Without dead ends: 16 [2022-12-14 10:03:22,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:03:22,105 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 4 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:03:22,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 27 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:03:22,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-14 10:03:22,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-14 10:03:22,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:03:22,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2022-12-14 10:03:22,108 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 13 [2022-12-14 10:03:22,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:03:22,108 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2022-12-14 10:03:22,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:03:22,109 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2022-12-14 10:03:22,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 10:03:22,109 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:03:22,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:03:22,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:22,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:22,311 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-12-14 10:03:22,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:03:22,313 INFO L85 PathProgramCache]: Analyzing trace with hash 462284832, now seen corresponding path program 1 times [2022-12-14 10:03:22,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 10:03:22,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143814597] [2022-12-14 10:03:22,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:03:22,314 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 10:03:22,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 10:03:22,317 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:22,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:03:22,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 10:03:22,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:03:22,517 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_entry_point_~p~0#1.base| (_ BitVec 32))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~p~0#1.base|) (_ bv0 1)) (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_entry_point_~p~0#1.base| (_ bv0 1))))) is different from true [2022-12-14 10:03:22,525 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 10:03:22,525 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:03:22,525 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 10:03:22,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143814597] [2022-12-14 10:03:22,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143814597] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:03:22,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:03:22,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 10:03:22,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365785530] [2022-12-14 10:03:22,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:03:22,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 10:03:22,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 10:03:22,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 10:03:22,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=44, Unknown=1, NotChecked=12, Total=72 [2022-12-14 10:03:22,527 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 9 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:03:22,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:03:22,657 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2022-12-14 10:03:22,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 10:03:22,657 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-12-14 10:03:22,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:03:22,658 INFO L225 Difference]: With dead ends: 15 [2022-12-14 10:03:22,658 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 10:03:22,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=68, Unknown=1, NotChecked=16, Total=110 [2022-12-14 10:03:22,659 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:03:22,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 24 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 12 Unchecked, 0.1s Time] [2022-12-14 10:03:22,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 10:03:22,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 10:03:22,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:03:22,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 10:03:22,660 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2022-12-14 10:03:22,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:03:22,660 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 10:03:22,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:03:22,661 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 10:03:22,661 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 10:03:22,663 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (3 of 4 remaining) [2022-12-14 10:03:22,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2022-12-14 10:03:22,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2022-12-14 10:03:22,664 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (0 of 4 remaining) [2022-12-14 10:03:22,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-14 10:03:22,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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 10:03:22,874 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:03:22,888 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:03:22,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:03:22 BoogieIcfgContainer [2022-12-14 10:03:22,895 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:03:22,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:03:22,897 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:03:22,897 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:03:22,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:03:19" (3/4) ... [2022-12-14 10:03:22,906 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 10:03:22,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2022-12-14 10:03:22,931 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-14 10:03:22,932 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 10:03:22,932 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 10:03:22,992 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 10:03:22,992 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:03:22,993 INFO L158 Benchmark]: Toolchain (without parser) took 4027.61ms. Allocated memory is still 107.0MB. Free memory was 83.2MB in the beginning and 82.0MB in the end (delta: 1.2MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2022-12-14 10:03:22,993 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 77.6MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:03:22,994 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.49ms. Allocated memory is still 107.0MB. Free memory was 83.2MB in the beginning and 55.5MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 10:03:22,994 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.10ms. Allocated memory is still 107.0MB. Free memory was 55.5MB in the beginning and 86.8MB in the end (delta: -31.3MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2022-12-14 10:03:22,994 INFO L158 Benchmark]: Boogie Preprocessor took 28.68ms. Allocated memory is still 107.0MB. Free memory was 86.8MB in the beginning and 85.8MB in the end (delta: 988.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:03:22,995 INFO L158 Benchmark]: RCFGBuilder took 245.61ms. Allocated memory is still 107.0MB. Free memory was 85.3MB in the beginning and 74.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 10:03:22,995 INFO L158 Benchmark]: TraceAbstraction took 3168.52ms. Allocated memory is still 107.0MB. Free memory was 73.7MB in the beginning and 84.1MB in the end (delta: -10.4MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2022-12-14 10:03:22,995 INFO L158 Benchmark]: Witness Printer took 95.88ms. Allocated memory is still 107.0MB. Free memory was 84.1MB in the beginning and 82.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:03:22,997 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 77.6MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 446.49ms. Allocated memory is still 107.0MB. Free memory was 83.2MB in the beginning and 55.5MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.10ms. Allocated memory is still 107.0MB. Free memory was 55.5MB in the beginning and 86.8MB in the end (delta: -31.3MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.68ms. Allocated memory is still 107.0MB. Free memory was 86.8MB in the beginning and 85.8MB in the end (delta: 988.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 245.61ms. Allocated memory is still 107.0MB. Free memory was 85.3MB in the beginning and 74.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3168.52ms. Allocated memory is still 107.0MB. Free memory was 73.7MB in the beginning and 84.1MB in the end (delta: -10.4MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. * Witness Printer took 95.88ms. Allocated memory is still 107.0MB. Free memory was 84.1MB in the beginning and 82.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 764]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 345 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 12 IncrementalHoareTripleChecker+Unchecked, 242 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 239 IncrementalHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 103 mSDtfsCounter, 239 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=3, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 80 ConstructedInterpolants, 10 QuantifiedInterpolants, 388 SizeOfPredicates, 8 NumberOfNonLiveVariables, 283 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 10:03:23,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66cce23a-6726-4f52-bad7-e773eb1860df/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: TRUE