./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69d24e9affd7540aafb8052ecd737d7732ca2a63c7e8e16adc4217413d1d99a5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:44:02,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:44:02,530 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:44:02,534 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:44:02,535 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:44:02,560 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:44:02,561 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:44:02,562 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:44:02,562 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:44:02,563 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:44:02,563 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:44:02,564 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:44:02,564 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:44:02,565 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:44:02,565 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:44:02,565 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:44:02,566 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:44:02,566 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:44:02,567 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:44:02,567 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:44:02,567 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:44:02,568 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:44:02,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:44:02,569 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:44:02,570 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:44:02,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:44:02,570 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:44:02,570 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:44:02,571 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:44:02,571 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:44:02,582 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:44:02,582 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:44:02,583 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:44:02,583 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:44:02,584 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:44:02,584 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:44:02,585 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:44:02,586 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:44:02,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:44:02,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:44:02,587 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:44:02,587 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:44:02,588 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:44:02,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:44:02,588 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:44:02,589 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:44:02,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:44:02,589 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_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69d24e9affd7540aafb8052ecd737d7732ca2a63c7e8e16adc4217413d1d99a5 [2024-11-09 04:44:02,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:44:02,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:44:02,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:44:02,941 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:44:02,942 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:44:02,944 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i Unable to find full path for "g++" [2024-11-09 04:44:05,311 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:44:05,640 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:44:05,640 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i [2024-11-09 04:44:05,656 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/data/088029a72/fc3856d8da3740b6ac7fed26a614c386/FLAG27837cd53 [2024-11-09 04:44:05,878 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/data/088029a72/fc3856d8da3740b6ac7fed26a614c386 [2024-11-09 04:44:05,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:44:05,882 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:44:05,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:44:05,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:44:05,889 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:44:05,890 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:44:05" (1/1) ... [2024-11-09 04:44:05,891 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a037bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:05, skipping insertion in model container [2024-11-09 04:44:05,891 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:44:05" (1/1) ... [2024-11-09 04:44:05,947 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:44:06,474 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i[37019,37032] [2024-11-09 04:44:06,602 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i[47352,47365] [2024-11-09 04:44:06,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:44:06,623 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:44:06,666 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i[37019,37032] [2024-11-09 04:44:06,769 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-1.i[47352,47365] [2024-11-09 04:44:06,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:44:06,833 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:44:06,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:06 WrapperNode [2024-11-09 04:44:06,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:44:06,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:44:06,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:44:06,835 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:44:06,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:06" (1/1) ... [2024-11-09 04:44:06,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:06" (1/1) ... [2024-11-09 04:44:06,967 INFO L138 Inliner]: procedures = 208, calls = 227, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1272 [2024-11-09 04:44:06,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:44:06,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:44:06,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:44:06,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:44:06,979 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:06" (1/1) ... [2024-11-09 04:44:06,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:06" (1/1) ... [2024-11-09 04:44:06,989 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:06" (1/1) ... [2024-11-09 04:44:06,990 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:06" (1/1) ... [2024-11-09 04:44:07,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:06" (1/1) ... [2024-11-09 04:44:07,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:06" (1/1) ... [2024-11-09 04:44:07,083 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:06" (1/1) ... [2024-11-09 04:44:07,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:06" (1/1) ... [2024-11-09 04:44:07,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:44:07,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:44:07,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:44:07,111 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:44:07,116 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:06" (1/1) ... [2024-11-09 04:44:07,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:44:07,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:44:07,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:44:07,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:44:07,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 04:44:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 04:44:07,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:44:07,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 04:44:07,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:44:07,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 04:44:07,230 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 04:44:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 04:44:07,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 04:44:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:44:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:44:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 04:44:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:44:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:44:07,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:44:07,500 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:44:07,503 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:44:09,205 INFO L? ?]: Removed 298 outVars from TransFormulas that were not future-live. [2024-11-09 04:44:09,206 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:44:10,859 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:44:10,860 INFO L316 CfgBuilder]: Removed 50 assume(true) statements. [2024-11-09 04:44:10,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:44:10 BoogieIcfgContainer [2024-11-09 04:44:10,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:44:10,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:44:10,864 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:44:10,867 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:44:10,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:44:05" (1/3) ... [2024-11-09 04:44:10,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c67771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:44:10, skipping insertion in model container [2024-11-09 04:44:10,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:06" (2/3) ... [2024-11-09 04:44:10,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c67771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:44:10, skipping insertion in model container [2024-11-09 04:44:10,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:44:10" (3/3) ... [2024-11-09 04:44:10,872 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test2-1.i [2024-11-09 04:44:10,891 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:44:10,892 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 04:44:10,974 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:44:10,982 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=LoopHeads, 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;@7cc5db06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:44:10,982 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 04:44:10,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 110 states have (on average 1.7363636363636363) internal successors, (191), 117 states have internal predecessors, (191), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 04:44:10,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 04:44:10,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:44:10,997 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:44:10,998 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:44:11,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:44:11,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1969545508, now seen corresponding path program 1 times [2024-11-09 04:44:11,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:44:11,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734437319] [2024-11-09 04:44:11,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:44:11,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:44:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:44:11,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:44:11,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:44:11,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734437319] [2024-11-09 04:44:11,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734437319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:44:11,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:44:11,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:44:11,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163059693] [2024-11-09 04:44:11,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:44:11,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 04:44:11,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:44:11,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 04:44:11,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:44:11,251 INFO L87 Difference]: Start difference. First operand has 123 states, 110 states have (on average 1.7363636363636363) internal successors, (191), 117 states have internal predecessors, (191), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-09 04:44:13,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:15,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:17,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:17,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:44:17,524 INFO L93 Difference]: Finished difference Result 245 states and 418 transitions. [2024-11-09 04:44:17,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 04:44:17,528 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2024-11-09 04:44:17,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:44:17,538 INFO L225 Difference]: With dead ends: 245 [2024-11-09 04:44:17,539 INFO L226 Difference]: Without dead ends: 121 [2024-11-09 04:44:17,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:44:17,545 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:44:17,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2024-11-09 04:44:17,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-09 04:44:17,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-09 04:44:17,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 109 states have (on average 1.2293577981651376) internal successors, (134), 115 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 04:44:17,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 150 transitions. [2024-11-09 04:44:17,594 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 150 transitions. Word has length 8 [2024-11-09 04:44:17,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:44:17,595 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 150 transitions. [2024-11-09 04:44:17,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-09 04:44:17,596 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 150 transitions. [2024-11-09 04:44:17,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 04:44:17,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:44:17,600 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:44:17,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:44:17,601 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:44:17,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:44:17,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1985364818, now seen corresponding path program 1 times [2024-11-09 04:44:17,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:44:17,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183287776] [2024-11-09 04:44:17,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:44:17,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:44:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:44:18,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:44:18,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:44:18,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183287776] [2024-11-09 04:44:18,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183287776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:44:18,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:44:18,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:44:18,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743708093] [2024-11-09 04:44:18,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:44:18,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:44:18,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:44:18,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:44:18,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:44:18,187 INFO L87 Difference]: Start difference. First operand 121 states and 150 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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) [2024-11-09 04:44:20,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:22,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:24,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:26,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:28,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:30,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:32,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:34,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:36,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:38,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:40,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:43,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:45,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:47,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:49,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:44:49,376 INFO L93 Difference]: Finished difference Result 251 states and 320 transitions. [2024-11-09 04:44:49,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:44:49,381 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2024-11-09 04:44:49,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:44:49,384 INFO L225 Difference]: With dead ends: 251 [2024-11-09 04:44:49,384 INFO L226 Difference]: Without dead ends: 191 [2024-11-09 04:44:49,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:44:49,386 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 78 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:44:49,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 352 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 14 Unknown, 0 Unchecked, 31.1s Time] [2024-11-09 04:44:49,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-09 04:44:49,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 123. [2024-11-09 04:44:49,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 111 states have (on average 1.2252252252252251) internal successors, (136), 117 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 04:44:49,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 152 transitions. [2024-11-09 04:44:49,417 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 152 transitions. Word has length 23 [2024-11-09 04:44:49,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:44:49,417 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 152 transitions. [2024-11-09 04:44:49,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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) [2024-11-09 04:44:49,418 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 152 transitions. [2024-11-09 04:44:49,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 04:44:49,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:44:49,419 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:44:49,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:44:49,419 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:44:49,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:44:49,419 INFO L85 PathProgramCache]: Analyzing trace with hash 934577262, now seen corresponding path program 1 times [2024-11-09 04:44:49,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:44:49,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767031565] [2024-11-09 04:44:49,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:44:49,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:44:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:44:49,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:44:49,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:44:49,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767031565] [2024-11-09 04:44:49,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767031565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:44:49,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:44:49,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:44:49,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892854104] [2024-11-09 04:44:49,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:44:49,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:44:49,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:44:49,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:44:49,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:44:49,859 INFO L87 Difference]: Start difference. First operand 123 states and 152 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 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) [2024-11-09 04:44:51,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:53,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:56,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:44:58,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:00,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:01,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:03,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:05,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:07,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:09,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:12,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:14,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:15,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:45:15,012 INFO L93 Difference]: Finished difference Result 295 states and 369 transitions. [2024-11-09 04:45:15,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:45:15,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 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 52 [2024-11-09 04:45:15,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:45:15,018 INFO L225 Difference]: With dead ends: 295 [2024-11-09 04:45:15,018 INFO L226 Difference]: Without dead ends: 175 [2024-11-09 04:45:15,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:45:15,020 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 43 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:45:15,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 271 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 11 Unknown, 0 Unchecked, 25.1s Time] [2024-11-09 04:45:15,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-09 04:45:15,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2024-11-09 04:45:15,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 156 states have (on average 1.2243589743589745) internal successors, (191), 167 states have internal predecessors, (191), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 04:45:15,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 217 transitions. [2024-11-09 04:45:15,035 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 217 transitions. Word has length 52 [2024-11-09 04:45:15,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:45:15,036 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 217 transitions. [2024-11-09 04:45:15,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 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) [2024-11-09 04:45:15,036 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 217 transitions. [2024-11-09 04:45:15,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 04:45:15,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:45:15,038 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:45:15,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:45:15,039 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:45:15,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:45:15,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1062010608, now seen corresponding path program 1 times [2024-11-09 04:45:15,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:45:15,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877024033] [2024-11-09 04:45:15,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:45:15,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:45:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:45:15,532 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 04:45:15,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:45:15,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877024033] [2024-11-09 04:45:15,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877024033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:45:15,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:45:15,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:45:15,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206290470] [2024-11-09 04:45:15,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:45:15,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:45:15,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:45:15,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:45:15,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:45:15,538 INFO L87 Difference]: Start difference. First operand 173 states and 217 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:45:17,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:19,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:21,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:23,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:25,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:27,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:29,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:31,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:45:33,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 04:45:33,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:45:33,468 INFO L93 Difference]: Finished difference Result 293 states and 366 transitions. [2024-11-09 04:45:33,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:45:33,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 65 [2024-11-09 04:45:33,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:45:33,471 INFO L225 Difference]: With dead ends: 293 [2024-11-09 04:45:33,472 INFO L226 Difference]: Without dead ends: 139 [2024-11-09 04:45:33,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:45:33,474 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 192 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 13 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:45:33,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 173 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 51 Invalid, 7 Unknown, 0 Unchecked, 17.9s Time] [2024-11-09 04:45:33,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-09 04:45:33,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-09 04:45:33,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 127 states have (on average 1.1968503937007875) internal successors, (152), 133 states have internal predecessors, (152), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 04:45:33,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 168 transitions. [2024-11-09 04:45:33,501 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 168 transitions. Word has length 65 [2024-11-09 04:45:33,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:45:33,502 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 168 transitions. [2024-11-09 04:45:33,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 04:45:33,502 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 168 transitions. [2024-11-09 04:45:33,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-09 04:45:33,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:45:33,510 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:45:33,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 04:45:33,510 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:45:33,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:45:33,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1356564840, now seen corresponding path program 1 times [2024-11-09 04:45:33,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:45:33,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941625777] [2024-11-09 04:45:33,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:45:33,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:45:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:45:35,322 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 04:45:35,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:45:35,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941625777] [2024-11-09 04:45:35,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941625777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:45:35,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548655572] [2024-11-09 04:45:35,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:45:35,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:45:35,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:45:35,325 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:45:35,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:46:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:46:00,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-09 04:46:00,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:46:00,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 04:46:00,293 INFO L349 Elim1Store]: treesize reduction 122, result has 10.9 percent of original size [2024-11-09 04:46:00,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 84 [2024-11-09 04:46:00,371 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 04:46:00,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 18 [2024-11-09 04:46:00,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2024-11-09 04:46:00,815 INFO L349 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2024-11-09 04:46:00,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 10 [2024-11-09 04:46:00,851 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:46:00,851 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:46:00,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548655572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:46:00,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:46:00,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 8 [2024-11-09 04:46:00,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625132294] [2024-11-09 04:46:00,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:46:00,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 04:46:00,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:46:00,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 04:46:00,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:46:00,853 INFO L87 Difference]: Start difference. First operand 139 states and 168 transitions. Second operand has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:46:04,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:06,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:08,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:10,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:12,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:14,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:16,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:18,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:20,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:22,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:24,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:26,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:28,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:30,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:32,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:34,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:36,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:38,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:40,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:42,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:44,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:46,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:46:48,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 04:46:50,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 04:46:50,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:46:50,762 INFO L93 Difference]: Finished difference Result 323 states and 401 transitions. [2024-11-09 04:46:50,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:46:50,763 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2024-11-09 04:46:50,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:46:50,765 INFO L225 Difference]: With dead ends: 323 [2024-11-09 04:46:50,765 INFO L226 Difference]: Without dead ends: 190 [2024-11-09 04:46:50,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 04:46:50,767 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 74 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 3 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:46:50,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 603 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 207 Invalid, 21 Unknown, 0 Unchecked, 49.8s Time] [2024-11-09 04:46:50,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-09 04:46:50,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 137. [2024-11-09 04:46:50,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 124 states have (on average 1.1935483870967742) internal successors, (148), 131 states have internal predecessors, (148), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-09 04:46:50,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 165 transitions. [2024-11-09 04:46:50,786 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 165 transitions. Word has length 73 [2024-11-09 04:46:50,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:46:50,786 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 165 transitions. [2024-11-09 04:46:50,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 7 states have internal predecessors, (69), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 04:46:50,787 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 165 transitions. [2024-11-09 04:46:50,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 04:46:50,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:46:50,790 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:46:50,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 04:46:50,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:46:50,991 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:46:50,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:46:50,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1138414262, now seen corresponding path program 1 times [2024-11-09 04:46:50,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:46:50,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353446559] [2024-11-09 04:46:50,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:46:50,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:46:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:46:52,996 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 04:46:52,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:46:52,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353446559] [2024-11-09 04:46:52,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353446559] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:46:52,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168327236] [2024-11-09 04:46:52,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:46:52,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:46:52,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:46:53,001 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:46:53,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 04:47:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:47:17,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 04:47:17,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:47:17,875 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 04:47:17,876 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:47:18,035 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 04:47:18,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168327236] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:47:18,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1565064604] [2024-11-09 04:47:18,066 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2024-11-09 04:47:18,066 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:47:18,070 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:47:18,076 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:47:18,076 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:47:44,095 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 134 for LOIs [2024-11-09 04:47:44,275 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:48:06,096 WARN L286 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 229 DAG size of output: 221 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:48:06,116 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 36)) (.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 28)) (.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 32))) (and (exists ((|v_#memory_$Pointer$.base_21| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_308| (Array Int (Array Int Int)))) (let ((.cse0 (select |v_#memory_$Pointer$.base_21| |c_ULTIMATE.start_main_~user~0#1.base|))) (and (= (store |v_#memory_$Pointer$.base_21| |c_ULTIMATE.start_main_~user~0#1.base| (store (store .cse0 .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) |c_#memory_$Pointer$.base|) (= |v_#memory_$Pointer$.base_21| (store |v_#memory_$Pointer$.base_308| |c_ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.base_308| |c_ULTIMATE.start_main_~user~0#1.base|) .cse3 (select .cse0 .cse3))))))) (exists ((|v_#memory_$Pointer$.offset_21| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_308| (Array Int (Array Int Int)))) (let ((.cse4 (select |v_#memory_$Pointer$.offset_21| |c_ULTIMATE.start_main_~user~0#1.base|))) (and (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_21| |c_ULTIMATE.start_main_~user~0#1.base| (store (store .cse4 .cse1 |c_ULTIMATE.start_main_~user~0#1.offset|) .cse2 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))) (= |v_#memory_$Pointer$.offset_21| (store |v_#memory_$Pointer$.offset_308| |c_ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.offset_308| |c_ULTIMATE.start_main_~user~0#1.base|) .cse3 (select .cse4 .cse3))))))) (exists ((|v_#memory_int_411| (Array Int (Array Int Int))) (|v_#memory_int_35| (Array Int (Array Int Int)))) (let ((.cse5 (select |v_#memory_int_35| |c_ULTIMATE.start_main_~user~0#1.base|))) (and (= |v_#memory_int_35| (store |v_#memory_int_411| |c_ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_411| |c_ULTIMATE.start_main_~user~0#1.base|) .cse3 |c_ULTIMATE.start_main_~_ha_hashv~0#1|) .cse1 (select .cse5 .cse1)))) (= (store |v_#memory_int_35| |c_ULTIMATE.start_main_~user~0#1.base| (store .cse5 .cse2 4)) |c_#memory_int|)))))) is different from true [2024-11-09 04:48:06,147 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse6 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 16)) (.cse4 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 12)) (.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 28)) (.cse5 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 32)) (.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 36))) (and (exists ((|v_#memory_int_411| (Array Int (Array Int Int))) (|v_#memory_int_35| (Array Int (Array Int Int))) (|v_#memory_int_128| (Array Int (Array Int Int)))) (let ((.cse2 (select |v_#memory_int_35| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse3 (select |v_#memory_int_128| |c_ULTIMATE.start_main_~user~0#1.base|))) (and (= |v_#memory_int_35| (store |v_#memory_int_411| |c_ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_411| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0 |c_ULTIMATE.start_main_~_ha_hashv~0#1|) .cse1 (select .cse2 .cse1)))) (= (store |v_#memory_int_128| |c_ULTIMATE.start_main_~user~0#1.base| (store .cse3 .cse4 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) |c_#memory_int|) (= (store |v_#memory_int_35| |c_ULTIMATE.start_main_~user~0#1.base| (store (store .cse2 .cse5 4) .cse6 (select .cse3 .cse6))) |v_#memory_int_128|)))) (exists ((|v_#memory_$Pointer$.base_309| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_21| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_308| (Array Int (Array Int Int)))) (let ((.cse8 (select |v_#memory_$Pointer$.base_21| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse7 (select |v_#memory_$Pointer$.base_309| |c_ULTIMATE.start_main_~user~0#1.base|))) (and (= |c_#memory_$Pointer$.base| (store |v_#memory_$Pointer$.base_309| |c_ULTIMATE.start_main_~user~0#1.base| (store (store .cse7 .cse6 0) .cse4 0))) (= |v_#memory_$Pointer$.base_21| (store |v_#memory_$Pointer$.base_308| |c_ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.base_308| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0 (select .cse8 .cse0)))) (= (store |v_#memory_$Pointer$.base_21| |c_ULTIMATE.start_main_~user~0#1.base| (store (store .cse8 .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5 (select .cse7 .cse5))) |v_#memory_$Pointer$.base_309|)))) (exists ((|v_#memory_$Pointer$.offset_21| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_308| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_309| (Array Int (Array Int Int)))) (let ((.cse9 (select |v_#memory_$Pointer$.offset_309| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse10 (select |v_#memory_$Pointer$.offset_21| |c_ULTIMATE.start_main_~user~0#1.base|))) (and (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_309| |c_ULTIMATE.start_main_~user~0#1.base| (store (store .cse9 .cse6 0) .cse4 0))) (= (store |v_#memory_$Pointer$.offset_21| |c_ULTIMATE.start_main_~user~0#1.base| (store (store .cse10 .cse1 |c_ULTIMATE.start_main_~user~0#1.offset|) .cse5 (select .cse9 .cse5))) |v_#memory_$Pointer$.offset_309|) (= |v_#memory_$Pointer$.offset_21| (store |v_#memory_$Pointer$.offset_308| |c_ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.offset_308| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0 (select .cse10 .cse0))))))))) is different from true [2024-11-09 04:48:24,627 WARN L286 SmtUtils]: Spent 7.87s on a formula simplification. DAG size of input: 134 DAG size of output: 134 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:48:39,266 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse26 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse26)) (.cse1 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~user~0#1.base|) .cse26))) (and (= (select (select |c_#memory_$Pointer$.offset| .cse0) .cse1) |c_ULTIMATE.start_main_#t~mem64#1.offset|) (= (select (select |c_#memory_$Pointer$.base| .cse0) .cse1) |c_ULTIMATE.start_main_#t~mem64#1.base|) (exists ((|v_#memory_int_129| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_106| (Array Int (Array Int Int))) (|v_#valid_55| (Array Int Int)) (|v_#memory_$Pointer$.offset_107| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_108| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_108| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_107| (Array Int (Array Int Int))) (|v_#memory_int_414| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_106| (Array Int (Array Int Int))) (|v_#length_33| (Array Int Int)) (|v_ULTIMATE.start_main_#t~mem54#1.base_15| Int) (|v_#memory_$Pointer$.base_311| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~malloc61#1.base_6| Int) (|v_#memory_$Pointer$.offset_311| (Array Int (Array Int Int))) (|v_#memory_int_130| (Array Int (Array Int Int)))) (let ((.cse8 (select (select |v_#memory_$Pointer$.base_311| |c_ULTIMATE.start_main_~user~0#1.base|) .cse26)) (.cse9 (+ 16 (select (select |v_#memory_$Pointer$.offset_311| |c_ULTIMATE.start_main_~user~0#1.base|) .cse26))) (.cse13 (select (select |v_#memory_$Pointer$.base_107| |c_ULTIMATE.start_main_~user~0#1.base|) .cse26)) (.cse14 (select (select |v_#memory_$Pointer$.offset_108| |c_ULTIMATE.start_main_~user~0#1.base|) .cse26))) (let ((.cse40 (store |v_#memory_$Pointer$.offset_108| .cse13 (store (select |v_#memory_$Pointer$.offset_108| .cse13) .cse14 0))) (.cse41 (store |v_#memory_$Pointer$.base_107| .cse13 (store (select |v_#memory_$Pointer$.base_107| .cse13) .cse14 |v_ULTIMATE.start_main_#t~malloc61#1.base_6|))) (.cse7 (store |v_#memory_$Pointer$.offset_311| .cse8 (store (select |v_#memory_$Pointer$.offset_311| .cse8) .cse9 .cse26))) (.cse2 (store |v_#memory_$Pointer$.base_311| .cse8 (store (select |v_#memory_$Pointer$.base_311| .cse8) .cse9 |c_ULTIMATE.start_main_~user~0#1.base|)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse26)) (.cse4 (+ (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse26) 4)) (.cse5 (select (select .cse41 |c_ULTIMATE.start_main_~user~0#1.base|) .cse26)) (.cse6 (+ 40 (select (select .cse40 |c_ULTIMATE.start_main_~user~0#1.base|) .cse26))) (.cse17 (select (select |v_#memory_$Pointer$.base_106| |c_ULTIMATE.start_main_~user~0#1.base|) .cse26)) (.cse18 (+ (select (select |v_#memory_$Pointer$.offset_107| |c_ULTIMATE.start_main_~user~0#1.base|) .cse26) 8)) (.cse10 (select (select |v_#memory_$Pointer$.base_108| |c_ULTIMATE.start_main_~user~0#1.base|) .cse26)) (.cse11 (+ 20 (select (select |v_#memory_$Pointer$.offset_106| |c_ULTIMATE.start_main_~user~0#1.base|) .cse26)))) (and (= (store .cse2 .cse3 (store (select .cse2 .cse3) .cse4 (select (select |v_#memory_$Pointer$.base_106| .cse3) .cse4))) |v_#memory_$Pointer$.base_106|) (= (store |v_#memory_int_129| .cse5 (store (select |v_#memory_int_129| .cse5) .cse6 2685476833)) |c_#memory_int|) (= (store .cse7 .cse3 (store (select .cse7 .cse3) .cse4 (select (select |v_#memory_$Pointer$.offset_107| .cse3) .cse4))) |v_#memory_$Pointer$.offset_107|) (= (store |v_#memory_int_414| .cse8 (store (select |v_#memory_int_414| .cse8) .cse9 (select (select |v_#memory_int_130| .cse8) .cse9))) |v_#memory_int_130|) (= (store |v_#memory_$Pointer$.offset_106| .cse10 (store (select |v_#memory_$Pointer$.offset_106| .cse10) .cse11 (select (select |v_#memory_$Pointer$.offset_108| .cse10) .cse11))) |v_#memory_$Pointer$.offset_108|) (= |c_#valid| (store |v_#valid_55| |v_ULTIMATE.start_main_#t~malloc61#1.base_6| 1)) (= (let ((.cse12 (let ((.cse15 (let ((.cse16 (store |v_#memory_int_130| .cse3 (store (select |v_#memory_int_130| .cse3) .cse4 32)))) (store .cse16 .cse17 (store (select .cse16 .cse17) .cse18 5))))) (store .cse15 .cse10 (store (select .cse15 .cse10) .cse11 8))))) (store .cse12 .cse13 (store (select .cse12 .cse13) .cse14 (select (select |v_#memory_int_129| .cse13) .cse14)))) |v_#memory_int_129|) (= (select |v_#valid_55| |v_ULTIMATE.start_main_#t~malloc61#1.base_6|) 0) (let ((.cse21 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 28)) (.cse27 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 32)) (.cse20 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 36))) (let ((.cse19 (exists ((|v_#memory_$Pointer$.offset_21| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_308| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_309| (Array Int (Array Int Int)))) (let ((.cse39 (select |v_#memory_$Pointer$.offset_21| |c_ULTIMATE.start_main_~user~0#1.base|))) (and (= (store |v_#memory_$Pointer$.offset_21| |c_ULTIMATE.start_main_~user~0#1.base| (store (store .cse39 .cse21 |c_ULTIMATE.start_main_~user~0#1.offset|) .cse27 (select (select |v_#memory_$Pointer$.offset_309| |c_ULTIMATE.start_main_~user~0#1.base|) .cse27))) |v_#memory_$Pointer$.offset_309|) (= |v_#memory_$Pointer$.offset_21| (store |v_#memory_$Pointer$.offset_308| |c_ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.offset_308| |c_ULTIMATE.start_main_~user~0#1.base|) .cse20 (select .cse39 .cse20)))))))) (.cse29 (exists ((|v_#Ultimate.C_memset_#t~loopctr228_29| Int)) (and (<= 0 |v_#Ultimate.C_memset_#t~loopctr228_29|) (<= 44 (mod |v_#Ultimate.C_memset_#t~loopctr228_29| 4294967296))))) (.cse24 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 12)) (.cse28 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 16))) (or (and .cse19 (exists ((|v_#memory_int_411| (Array Int (Array Int Int))) (|v_#memory_int_35| (Array Int (Array Int Int))) (|v_#memory_int_413| (Array Int (Array Int Int))) (|v_#memory_int_128| (Array Int (Array Int Int))) (|v_#memory_int_BEFORE_CALL_18| (Array Int (Array Int Int)))) (let ((.cse25 (select |v_#memory_int_413| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse22 (select |v_#memory_int_35| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse23 (select |v_#memory_int_128| |c_ULTIMATE.start_main_~user~0#1.base|))) (and (= |v_#memory_int_35| (store |v_#memory_int_411| |c_ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_411| |c_ULTIMATE.start_main_~user~0#1.base|) .cse20 |c_ULTIMATE.start_main_~_ha_hashv~0#1|) .cse21 (select .cse22 .cse21)))) (= |v_#memory_int_413| (store |v_#memory_int_128| |c_ULTIMATE.start_main_~user~0#1.base| (store .cse23 .cse24 (select .cse25 .cse24)))) (= (store |v_#memory_int_413| |c_ULTIMATE.start_main_~user~0#1.base| (store .cse25 .cse26 (select (select |v_#memory_int_BEFORE_CALL_18| |c_ULTIMATE.start_main_~user~0#1.base|) .cse26))) |v_#memory_int_BEFORE_CALL_18|) (= (store |v_#memory_int_35| |c_ULTIMATE.start_main_~user~0#1.base| (store (store .cse22 .cse27 4) .cse28 (select .cse23 .cse28))) |v_#memory_int_128|)))) .cse29 (exists ((|v_#memory_$Pointer$.base_309| (Array Int (Array Int Int))) (|v_#valid_54| (Array Int Int)) (|v_#memory_$Pointer$.base_21| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_308| (Array Int (Array Int Int))) (|v_#length_32| (Array Int Int)) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_13| (Array Int (Array Int Int)))) (let ((.cse32 (select |v_#memory_$Pointer$.base_21| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse31 (select |v_#memory_$Pointer$.base_309| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse30 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_13| |c_ULTIMATE.start_main_~user~0#1.base|) .cse26))) (and (not (= .cse30 0)) (<= (+ .cse30 1) |c_#StackHeapBarrier|) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_13| (store |v_#memory_$Pointer$.base_309| |c_ULTIMATE.start_main_~user~0#1.base| (store (store (store .cse31 .cse28 0) .cse24 0) .cse26 .cse30))) (= |v_#valid_55| (store |v_#valid_54| .cse30 1)) (= (select |v_#valid_54| .cse30) 0) (= |v_#memory_$Pointer$.base_21| (store |v_#memory_$Pointer$.base_308| |c_ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.base_308| |c_ULTIMATE.start_main_~user~0#1.base|) .cse20 (select .cse32 .cse20)))) (= (store |v_#memory_$Pointer$.base_21| |c_ULTIMATE.start_main_~user~0#1.base| (store (store .cse32 .cse21 |c_ULTIMATE.start_main_~user~0#1.base|) .cse27 (select .cse31 .cse27))) |v_#memory_$Pointer$.base_309|) (= .cse30 |v_ULTIMATE.start_main_#t~mem54#1.base_15|) (= (store |v_#length_32| .cse30 44) |v_#length_33|))))) (and .cse19 .cse29 (exists ((|v_#memory_$Pointer$.base_309| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_21| (Array Int (Array Int Int))) (|v_#valid_54| (Array Int Int)) (|v_#memory_$Pointer$.base_308| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_14| (Array Int (Array Int Int))) (|v_#length_32| (Array Int Int))) (let ((.cse35 (select |v_#memory_$Pointer$.base_21| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse33 (select |v_#memory_$Pointer$.base_309| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse34 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_14| |c_ULTIMATE.start_main_~user~0#1.base|) .cse26))) (and (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_14| (store |v_#memory_$Pointer$.base_309| |c_ULTIMATE.start_main_~user~0#1.base| (store (store (store .cse33 .cse28 0) .cse24 0) .cse26 .cse34))) (not (= .cse34 0)) (= 0 (select |v_#valid_54| .cse34)) (= |v_#valid_55| (store |v_#valid_54| .cse34 1)) (= |v_#memory_$Pointer$.base_21| (store |v_#memory_$Pointer$.base_308| |c_ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.base_308| |c_ULTIMATE.start_main_~user~0#1.base|) .cse20 (select .cse35 .cse20)))) (<= (+ .cse34 1) |c_#StackHeapBarrier|) (= (store |v_#memory_$Pointer$.base_21| |c_ULTIMATE.start_main_~user~0#1.base| (store (store .cse35 .cse21 |c_ULTIMATE.start_main_~user~0#1.base|) .cse27 (select .cse33 .cse27))) |v_#memory_$Pointer$.base_309|) (= .cse34 |v_ULTIMATE.start_main_#t~mem54#1.base_15|) (= (store |v_#length_32| .cse34 44) |v_#length_33|)))) (exists ((|v_#memory_int_411| (Array Int (Array Int Int))) (|v_#memory_int_35| (Array Int (Array Int Int))) (|v_#memory_int_413| (Array Int (Array Int Int))) (|v_#memory_int_128| (Array Int (Array Int Int))) (|v_#memory_int_BEFORE_CALL_20| (Array Int (Array Int Int)))) (let ((.cse37 (select |v_#memory_int_413| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse36 (select |v_#memory_int_35| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse38 (select |v_#memory_int_128| |c_ULTIMATE.start_main_~user~0#1.base|))) (and (= |v_#memory_int_35| (store |v_#memory_int_411| |c_ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_411| |c_ULTIMATE.start_main_~user~0#1.base|) .cse20 |c_ULTIMATE.start_main_~_ha_hashv~0#1|) .cse21 (select .cse36 .cse21)))) (= (store |v_#memory_int_413| |c_ULTIMATE.start_main_~user~0#1.base| (store .cse37 .cse26 (select (select |v_#memory_int_BEFORE_CALL_20| |c_ULTIMATE.start_main_~user~0#1.base|) .cse26))) |v_#memory_int_BEFORE_CALL_20|) (= |v_#memory_int_413| (store |v_#memory_int_128| |c_ULTIMATE.start_main_~user~0#1.base| (store .cse38 .cse24 (select .cse37 .cse24)))) (= (store |v_#memory_int_35| |c_ULTIMATE.start_main_~user~0#1.base| (store (store .cse36 .cse27 4) .cse28 (select .cse38 .cse28))) |v_#memory_int_128|)))))))) (= |c_#memory_$Pointer$.offset| (store .cse40 .cse5 (store (select .cse40 .cse5) .cse6 (select (select |c_#memory_$Pointer$.offset| .cse5) .cse6)))) (<= (+ |v_ULTIMATE.start_main_#t~malloc61#1.base_6| 1) |c_#StackHeapBarrier|) (= (store |v_#memory_$Pointer$.offset_107| .cse17 (store (select |v_#memory_$Pointer$.offset_107| .cse17) .cse18 (select (select |v_#memory_$Pointer$.offset_106| .cse17) .cse18))) |v_#memory_$Pointer$.offset_106|) (not (= |v_ULTIMATE.start_main_#t~malloc61#1.base_6| 0)) (= |c_#memory_$Pointer$.base| (store .cse41 .cse5 (store (select .cse41 .cse5) .cse6 (select (select |c_#memory_$Pointer$.base| .cse5) .cse6)))) (= (store |v_#memory_$Pointer$.base_106| .cse17 (store (select |v_#memory_$Pointer$.base_106| .cse17) .cse18 (select (select |v_#memory_$Pointer$.base_108| .cse17) .cse18))) |v_#memory_$Pointer$.base_108|) (= (store |v_#memory_$Pointer$.base_108| .cse10 (store (select |v_#memory_$Pointer$.base_108| .cse10) .cse11 (select (select |v_#memory_$Pointer$.base_107| .cse10) .cse11))) |v_#memory_$Pointer$.base_107|) (= (store |v_#length_33| |v_ULTIMATE.start_main_#t~malloc61#1.base_6| 384) |c_#length|))))))))) is different from false [2024-11-09 04:49:15,583 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3686#(and (exists ((|v_ULTIMATE.start_main_~_hf_bkt~0#1_19| Int) (|v_ULTIMATE.start_main_~_hf_hashv~0#1_479| Int)) (and (or (and (not (= (mod (+ 4294967295 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~users~0#1.base|) 8)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~users~0#1.base|) 8) 4))) 4294967296) 0)) (not (= (mod |v_ULTIMATE.start_main_~_hf_hashv~0#1_479| 4294967296) 0)) (or (and (= |v_ULTIMATE.start_main_~_hf_hashv~0#1_479| |v_ULTIMATE.start_main_~_hf_bkt~0#1_19|) (= (mod |v_ULTIMATE.start_main_~_hf_hashv~0#1_479| 4294967296) (mod (+ 4294967295 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~users~0#1.base|) 8)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~users~0#1.base|) 8) 4))) 4294967296))) (and (not (= (mod |v_ULTIMATE.start_main_~_hf_hashv~0#1_479| 4294967296) (mod (+ 4294967295 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~users~0#1.base|) 8)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~users~0#1.base|) 8) 4))) 4294967296))) (<= (mod |v_ULTIMATE.start_main_~_hf_bkt~0#1_19| 4294967296) (mod |v_ULTIMATE.start_main_~_hf_hashv~0#1_479| 4294967296)) (<= (mod |v_ULTIMATE.start_main_~_hf_bkt~0#1_19| 4294967296) (mod (+ 4294967295 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~users~0#1.base|) 8)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~users~0#1.base|) 8) 4))) 4294967296))))) (and (= 0 |v_ULTIMATE.start_main_~_hf_bkt~0#1_19|) (or (= (mod |v_ULTIMATE.start_main_~_hf_hashv~0#1_479| 4294967296) 0) (= (mod (+ 4294967295 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~users~0#1.base|) 8)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~users~0#1.base|) 8) 4))) 4294967296) 0)))) (or (and (<= 2147483648 (mod |v_ULTIMATE.start_main_~_hf_bkt~0#1_19| 4294967296)) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~users~0#1.base|) 8)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~users~0#1.base|) 8))) (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~users~0#1.base|) 8)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~users~0#1.base|) 8)) (- 51539607552) (* (mod |v_ULTIMATE.start_main_~_hf_bkt~0#1_19| 4294967296) 12))) 0)) (and (<= (mod |v_ULTIMATE.start_main_~_hf_bkt~0#1_19| 4294967296) 2147483647) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~users~0#1.base|) 8)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~users~0#1.base|) 8))) (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~users~0#1.base|) 8)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~users~0#1.base|) 8)) (* (mod |v_ULTIMATE.start_main_~_hf_bkt~0#1_19| 4294967296) 12))) 0))) (or (and (<= 2147483648 (mod |v_ULTIMATE.start_main_~_hf_bkt~0#1_19| 4294967296)) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~users~0#1.base|) 8)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~users~0#1.base|) 8))) (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~users~0#1.base|) 8)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~users~0#1.base|) 8)) (- 51539607552) (* (mod |v_ULTIMATE.start_main_~_hf_bkt~0#1_19| 4294967296) 12))) 0)) (and (<= (mod |v_ULTIMATE.start_main_~_hf_bkt~0#1_19| 4294967296) 2147483647) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~users~0#1.base|) 8)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~users~0#1.base|) 8))) (+ (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~users~0#1.base|) 8)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~users~0#1.base|) 8)) (* (mod |v_ULTIMATE.start_main_~_hf_bkt~0#1_19| 4294967296) 12))) 0))))) (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~tmp~0#1.base| 0) (= |ULTIMATE.start_main_~users~0#1.offset| 0) (= |ULTIMATE.start_main_~tmp~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_~#i~0#1.base|) (not (= |ULTIMATE.start_main_~users~0#1.base| 0)) (= ~count_int_int~0 0) (= |ULTIMATE.start_main_~#i~0#1.offset| 0))' at error location [2024-11-09 04:49:15,584 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:49:15,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:49:15,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 04:49:15,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10412434] [2024-11-09 04:49:15,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:49:15,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 04:49:15,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:49:15,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 04:49:15,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1247, Unknown=21, NotChecked=222, Total=1640 [2024-11-09 04:49:15,589 INFO L87 Difference]: Start difference. First operand 137 states and 165 transitions. Second operand has 10 states, 7 states have (on average 11.285714285714286) internal successors, (79), 10 states have internal predecessors, (79), 2 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 04:49:17,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:19,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:21,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:23,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:25,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:28,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:30,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:32,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:34,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:36,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:38,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:40,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:42,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:44,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:46,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:48,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:50,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:52,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:54,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:56,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:49:58,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:50:00,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:50:02,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:50:04,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:50:06,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:50:08,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:50:10,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:50:12,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:50:14,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:50:16,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:50:18,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:50:20,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 04:50:21,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:50:21,663 INFO L93 Difference]: Finished difference Result 265 states and 329 transitions. [2024-11-09 04:50:21,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 04:50:21,665 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 11.285714285714286) internal successors, (79), 10 states have internal predecessors, (79), 2 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 75 [2024-11-09 04:50:21,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:50:21,667 INFO L225 Difference]: With dead ends: 265 [2024-11-09 04:50:21,667 INFO L226 Difference]: Without dead ends: 146 [2024-11-09 04:50:21,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 183 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 92.2s TimeCoverageRelationStatistics Valid=191, Invalid=1606, Unknown=21, NotChecked=252, Total=2070 [2024-11-09 04:50:21,670 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 5 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 7 mSolverCounterUnsat, 31 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 31 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:50:21,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 381 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 86 Invalid, 31 Unknown, 0 Unchecked, 65.2s Time] [2024-11-09 04:50:21,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-09 04:50:21,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 145. [2024-11-09 04:50:21,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 131 states have (on average 1.2290076335877862) internal successors, (161), 138 states have internal predecessors, (161), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (10), 4 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-09 04:50:21,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 179 transitions. [2024-11-09 04:50:21,692 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 179 transitions. Word has length 75 [2024-11-09 04:50:21,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:50:21,693 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 179 transitions. [2024-11-09 04:50:21,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 11.285714285714286) internal successors, (79), 10 states have internal predecessors, (79), 2 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 04:50:21,694 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 179 transitions. [2024-11-09 04:50:21,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 04:50:21,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:21,696 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:50:21,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 04:50:21,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 04:50:21,897 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:50:21,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:21,898 INFO L85 PathProgramCache]: Analyzing trace with hash 790103640, now seen corresponding path program 2 times [2024-11-09 04:50:21,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:50:21,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635270010] [2024-11-09 04:50:21,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:21,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:50:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:50:24,498 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 04:50:24,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:50:24,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635270010] [2024-11-09 04:50:24,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635270010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:50:24,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006402212] [2024-11-09 04:50:24,499 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:50:24,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:50:24,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:50:24,503 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:50:24,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061ebda9-db92-4f1a-9da8-ba4e9a87a048/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process