./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/printf-3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a 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_2dbd5ef8-ff6c-4ff9-b0e4-068e83ceb0af/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dbd5ef8-ff6c-4ff9-b0e4-068e83ceb0af/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dbd5ef8-ff6c-4ff9-b0e4-068e83ceb0af/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dbd5ef8-ff6c-4ff9-b0e4-068e83ceb0af/bin/utaipan-verify-DbMuA5NWw2/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/printf-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dbd5ef8-ff6c-4ff9-b0e4-068e83ceb0af/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dbd5ef8-ff6c-4ff9-b0e4-068e83ceb0af/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --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 64bit --witnessprinter.graph.data.programhash 2593602351cb34686025dea9c261b26d1cca1858dfe926a7fd5af83beb181488 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:23:57,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:23:57,610 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dbd5ef8-ff6c-4ff9-b0e4-068e83ceb0af/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2024-11-02 12:23:57,621 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:23:57,622 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:23:57,666 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:23:57,666 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:23:57,667 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:23:57,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:23:57,668 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:23:57,668 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:23:57,669 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:23:57,669 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:23:57,671 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:23:57,672 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:23:57,672 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:23:57,673 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:23:57,673 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:23:57,677 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:23:57,678 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:23:57,678 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:23:57,679 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:23:57,679 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 12:23:57,680 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 12:23:57,680 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:23:57,681 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:23:57,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:23:57,681 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-02 12:23:57,681 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-02 12:23:57,682 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-02 12:23:57,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:23:57,684 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:23:57,684 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:23:57,684 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:23:57,684 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:23:57,685 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:23:57,685 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:23:57,685 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:23:57,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:23:57,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:23:57,686 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:23:57,687 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:23:57,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:23:57,687 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:23:57,687 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:23:57,688 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:23:57,688 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_2dbd5ef8-ff6c-4ff9-b0e4-068e83ceb0af/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dbd5ef8-ff6c-4ff9-b0e4-068e83ceb0af/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2593602351cb34686025dea9c261b26d1cca1858dfe926a7fd5af83beb181488 [2024-11-02 12:23:57,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:23:58,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:23:58,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:23:58,064 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:23:58,070 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:23:58,071 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dbd5ef8-ff6c-4ff9-b0e4-068e83ceb0af/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/busybox-1.22.0/printf-3.i Unable to find full path for "g++" [2024-11-02 12:24:00,497 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:24:00,934 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:24:00,934 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dbd5ef8-ff6c-4ff9-b0e4-068e83ceb0af/sv-benchmarks/c/busybox-1.22.0/printf-3.i [2024-11-02 12:24:00,971 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dbd5ef8-ff6c-4ff9-b0e4-068e83ceb0af/bin/utaipan-verify-DbMuA5NWw2/data/369d0fc92/c4f217163c1d4dd98cc127f09f80ab24/FLAG5560af3e3 [2024-11-02 12:24:00,991 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dbd5ef8-ff6c-4ff9-b0e4-068e83ceb0af/bin/utaipan-verify-DbMuA5NWw2/data/369d0fc92/c4f217163c1d4dd98cc127f09f80ab24 [2024-11-02 12:24:00,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:24:00,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:24:01,000 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:01,000 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:24:01,007 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:24:01,008 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:00" (1/1) ... [2024-11-02 12:24:01,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b42d043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:01, skipping insertion in model container [2024-11-02 12:24:01,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:00" (1/1) ... [2024-11-02 12:24:01,112 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:24:02,688 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,695 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,712 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,717 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,721 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,728 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,729 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,731 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,735 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,737 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,737 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,738 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,743 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,746 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,747 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,751 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,759 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,768 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,769 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,770 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,777 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,779 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,781 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,783 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,786 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,790 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,792 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,795 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,799 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,805 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,806 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,807 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,808 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,809 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,810 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,817 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,819 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,820 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,823 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,828 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,830 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,830 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,831 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,833 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,833 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,835 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,844 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,846 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,848 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,859 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,879 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-02 12:24:02,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:02,921 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:24:03,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:03,449 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:24:03,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:03 WrapperNode [2024-11-02 12:24:03,450 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:03,451 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:03,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:24:03,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:24:03,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:03" (1/1) ... [2024-11-02 12:24:03,531 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:03" (1/1) ... [2024-11-02 12:24:03,652 INFO L138 Inliner]: procedures = 646, calls = 815, calls flagged for inlining = 26, calls inlined = 21, statements flattened = 1653 [2024-11-02 12:24:03,654 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:03,655 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:24:03,656 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:24:03,656 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:24:03,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:03" (1/1) ... [2024-11-02 12:24:03,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:03" (1/1) ... [2024-11-02 12:24:03,701 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:03" (1/1) ... [2024-11-02 12:24:03,703 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:03" (1/1) ... [2024-11-02 12:24:03,788 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:03" (1/1) ... [2024-11-02 12:24:03,806 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:03" (1/1) ... [2024-11-02 12:24:03,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:03" (1/1) ... [2024-11-02 12:24:03,843 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:03" (1/1) ... [2024-11-02 12:24:03,868 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:24:03,871 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:24:03,871 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:24:03,871 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:24:03,872 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:03" (1/1) ... [2024-11-02 12:24:03,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:03,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dbd5ef8-ff6c-4ff9-b0e4-068e83ceb0af/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:24:03,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dbd5ef8-ff6c-4ff9-b0e4-068e83ceb0af/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:24:03,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dbd5ef8-ff6c-4ff9-b0e4-068e83ceb0af/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:24:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-02 12:24:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure bb_putchar [2024-11-02 12:24:03,952 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_putchar [2024-11-02 12:24:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:24:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-02 12:24:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure ret_ERANGE [2024-11-02 12:24:03,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ret_ERANGE [2024-11-02 12:24:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-02 12:24:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2024-11-02 12:24:03,954 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2024-11-02 12:24:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 12:24:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:24:03,956 INFO L130 BoogieDeclarations]: Found specification of procedure get_width_prec [2024-11-02 12:24:03,956 INFO L138 BoogieDeclarations]: Found implementation of procedure get_width_prec [2024-11-02 12:24:03,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-02 12:24:03,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:24:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:24:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 12:24:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:24:03,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:24:03,958 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-02 12:24:03,958 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-02 12:24:03,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-02 12:24:03,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 12:24:03,959 INFO L130 BoogieDeclarations]: Found specification of procedure handle_errors [2024-11-02 12:24:03,959 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_errors [2024-11-02 12:24:03,960 INFO L130 BoogieDeclarations]: Found specification of procedure bb_process_escape_sequence [2024-11-02 12:24:03,960 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_process_escape_sequence [2024-11-02 12:24:03,960 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:24:03,960 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:24:03,961 INFO L130 BoogieDeclarations]: Found specification of procedure print_direc [2024-11-02 12:24:03,961 INFO L138 BoogieDeclarations]: Found implementation of procedure print_direc [2024-11-02 12:24:03,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:24:03,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 12:24:03,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-02 12:24:03,962 INFO L130 BoogieDeclarations]: Found specification of procedure bb_ascii_isalnum [2024-11-02 12:24:03,962 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_ascii_isalnum [2024-11-02 12:24:03,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:24:03,963 INFO L130 BoogieDeclarations]: Found specification of procedure bb_strtoll [2024-11-02 12:24:03,963 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_strtoll [2024-11-02 12:24:03,963 INFO L130 BoogieDeclarations]: Found specification of procedure multiconvert [2024-11-02 12:24:03,963 INFO L138 BoogieDeclarations]: Found implementation of procedure multiconvert [2024-11-02 12:24:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2024-11-02 12:24:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:24:03,965 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg [2024-11-02 12:24:03,965 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg [2024-11-02 12:24:04,459 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:24:04,463 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:24:09,629 INFO L? ?]: Removed 1124 outVars from TransFormulas that were not future-live. [2024-11-02 12:24:09,629 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:24:10,228 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:24:10,228 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-02 12:24:10,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:10 BoogieIcfgContainer [2024-11-02 12:24:10,229 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:24:10,235 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:24:10,235 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:24:10,239 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:24:10,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:24:00" (1/3) ... [2024-11-02 12:24:10,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e061b68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:10, skipping insertion in model container [2024-11-02 12:24:10,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:03" (2/3) ... [2024-11-02 12:24:10,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e061b68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:10, skipping insertion in model container [2024-11-02 12:24:10,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:10" (3/3) ... [2024-11-02 12:24:10,244 INFO L112 eAbstractionObserver]: Analyzing ICFG printf-3.i [2024-11-02 12:24:10,265 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:24:10,266 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 421 error locations. [2024-11-02 12:24:10,363 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:24:10,373 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@75edfda9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:24:10,373 INFO L334 AbstractCegarLoop]: Starting to check reachability of 421 error locations. [2024-11-02 12:24:10,384 INFO L276 IsEmpty]: Start isEmpty. Operand has 912 states, 429 states have (on average 2.275058275058275) internal successors, (976), 865 states have internal predecessors, (976), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-02 12:24:10,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-02 12:24:10,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:10,395 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-11-02 12:24:10,395 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, bb_strtollErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, bb_strtollErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 418 more)] === [2024-11-02 12:24:10,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:10,401 INFO L85 PathProgramCache]: Analyzing trace with hash 64530, now seen corresponding path program 1 times [2024-11-02 12:24:10,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:24:10,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606530788] [2024-11-02 12:24:10,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:10,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:24:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:12,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:24:12,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:24:12,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606530788] [2024-11-02 12:24:12,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606530788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:24:12,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:24:12,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:24:12,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485899754] [2024-11-02 12:24:12,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:24:12,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:24:12,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:24:12,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:24:12,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:24:12,741 INFO L87 Difference]: Start difference. First operand has 912 states, 429 states have (on average 2.275058275058275) internal successors, (976), 865 states have internal predecessors, (976), 48 states have call successors, (48), 13 states have call predecessors, (48), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-11-02 12:24:14,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:24:18,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:24:18,119 INFO L93 Difference]: Finished difference Result 1195 states and 1364 transitions. [2024-11-02 12:24:18,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:24:18,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) Word has length 2 [2024-11-02 12:24:18,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:24:18,171 INFO L225 Difference]: With dead ends: 1195 [2024-11-02 12:24:18,172 INFO L226 Difference]: Without dead ends: 1194 [2024-11-02 12:24:18,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:24:18,178 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 395 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:24:18,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 1238 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 723 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2024-11-02 12:24:18,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2024-11-02 12:24:18,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 893. [2024-11-02 12:24:18,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 893 states, 424 states have (on average 2.224056603773585) internal successors, (943), 846 states have internal predecessors, (943), 48 states have call successors, (48), 13 states have call predecessors, (48), 12 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-02 12:24:18,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1025 transitions. [2024-11-02 12:24:18,313 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1025 transitions. Word has length 2 [2024-11-02 12:24:18,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:24:18,313 INFO L471 AbstractCegarLoop]: Abstraction has 893 states and 1025 transitions. [2024-11-02 12:24:18,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-11-02 12:24:18,314 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1025 transitions. [2024-11-02 12:24:18,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-11-02 12:24:18,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:18,315 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-11-02 12:24:18,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:24:18,316 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, bb_strtollErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, bb_strtollErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 418 more)] === [2024-11-02 12:24:18,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:18,316 INFO L85 PathProgramCache]: Analyzing trace with hash 64531, now seen corresponding path program 1 times [2024-11-02 12:24:18,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:24:18,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567003671] [2024-11-02 12:24:18,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:18,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:24:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:20,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:24:20,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:24:20,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567003671] [2024-11-02 12:24:20,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567003671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:24:20,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:24:20,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:24:20,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047370921] [2024-11-02 12:24:20,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:24:20,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:24:20,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:24:20,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:24:20,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:24:20,312 INFO L87 Difference]: Start difference. First operand 893 states and 1025 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-11-02 12:24:22,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:24:24,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:24:24,313 INFO L93 Difference]: Finished difference Result 892 states and 1024 transitions. [2024-11-02 12:24:24,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:24:24,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) Word has length 2 [2024-11-02 12:24:24,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:24:24,318 INFO L225 Difference]: With dead ends: 892 [2024-11-02 12:24:24,319 INFO L226 Difference]: Without dead ends: 892 [2024-11-02 12:24:24,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:24:24,320 INFO L432 NwaCegarLoop]: 908 mSDtfsCounter, 7 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-02 12:24:24,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1496 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 542 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2024-11-02 12:24:24,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2024-11-02 12:24:24,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 892. [2024-11-02 12:24:24,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 424 states have (on average 2.2216981132075473) internal successors, (942), 845 states have internal predecessors, (942), 48 states have call successors, (48), 13 states have call predecessors, (48), 12 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-02 12:24:24,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1024 transitions. [2024-11-02 12:24:24,351 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1024 transitions. Word has length 2 [2024-11-02 12:24:24,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:24:24,351 INFO L471 AbstractCegarLoop]: Abstraction has 892 states and 1024 transitions. [2024-11-02 12:24:24,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-11-02 12:24:24,352 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1024 transitions. [2024-11-02 12:24:24,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-02 12:24:24,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:24,353 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-02 12:24:24,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:24:24,353 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, bb_strtollErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, bb_strtollErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 418 more)] === [2024-11-02 12:24:24,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:24,357 INFO L85 PathProgramCache]: Analyzing trace with hash 63055001, now seen corresponding path program 1 times [2024-11-02 12:24:24,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:24:24,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823118710] [2024-11-02 12:24:24,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:24,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:24:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:25,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:24:25,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:24:25,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823118710] [2024-11-02 12:24:25,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823118710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:24:25,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:24:25,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:24:25,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531903949] [2024-11-02 12:24:25,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:24:25,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:24:25,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:24:25,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:24:25,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:24:25,788 INFO L87 Difference]: Start difference. First operand 892 states and 1024 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-02 12:24:27,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:24:29,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []