./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_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_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/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_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/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_a73095a2-c187-40ef-8b37-6d95b9a2e426/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 e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:12:10,556 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:12:10,635 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 01:12:10,642 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:12:10,642 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:12:10,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:12:10,673 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:12:10,673 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:12:10,674 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:12:10,675 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:12:10,675 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:12:10,676 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:12:10,678 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:12:10,681 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:12:10,682 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:12:10,682 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:12:10,683 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:12:10,683 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:12:10,684 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:12:10,684 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:12:10,685 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:12:10,689 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:12:10,690 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:12:10,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:12:10,691 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:12:10,691 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:12:10,691 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:12:10,692 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:12:10,692 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:12:10,695 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:12:10,695 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:12:10,696 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:12:10,696 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:12:10,696 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:12:10,697 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:12:10,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:12:10,697 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:12:10,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:12:10,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:12:10,700 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:12:10,700 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:12:10,701 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:12:10,701 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:12:10,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:12:10,702 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:12:10,703 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:12:10,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:12:10,703 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_a73095a2-c187-40ef-8b37-6d95b9a2e426/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e277983cfe4b30513b023d34f2b840358d8a25fd7a5c39241cadd105379bfb92 [2024-11-09 01:12:11,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:12:11,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:12:11,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:12:11,071 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:12:11,072 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:12:11,073 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test2-1.i Unable to find full path for "g++" [2024-11-09 01:12:13,422 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:12:13,764 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:12:13,765 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test2-1.i [2024-11-09 01:12:13,785 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje/data/68a4a2985/a295fa577d71400a927c60c6e36b9100/FLAGd70af5e30 [2024-11-09 01:12:13,801 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje/data/68a4a2985/a295fa577d71400a927c60c6e36b9100 [2024-11-09 01:12:13,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:12:13,806 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:12:13,807 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:12:13,808 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:12:13,814 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:12:13,815 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:12:13" (1/1) ... [2024-11-09 01:12:13,819 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61441ded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:13, skipping insertion in model container [2024-11-09 01:12:13,819 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:12:13" (1/1) ... [2024-11-09 01:12:13,888 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:12:14,421 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_a73095a2-c187-40ef-8b37-6d95b9a2e426/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test2-1.i[37435,37448] [2024-11-09 01:12:14,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:12:14,589 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:12:14,642 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_a73095a2-c187-40ef-8b37-6d95b9a2e426/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test2-1.i[37435,37448] [2024-11-09 01:12:14,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:12:14,833 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:12:14,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:14 WrapperNode [2024-11-09 01:12:14,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:12:14,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:12:14,836 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:12:14,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:12:14,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:14" (1/1) ... [2024-11-09 01:12:14,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:14" (1/1) ... [2024-11-09 01:12:14,967 INFO L138 Inliner]: procedures = 207, calls = 221, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1247 [2024-11-09 01:12:14,968 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:12:14,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:12:14,969 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:12:14,969 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:12:14,982 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:14" (1/1) ... [2024-11-09 01:12:14,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:14" (1/1) ... [2024-11-09 01:12:15,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:14" (1/1) ... [2024-11-09 01:12:15,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:14" (1/1) ... [2024-11-09 01:12:15,070 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:14" (1/1) ... [2024-11-09 01:12:15,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:14" (1/1) ... [2024-11-09 01:12:15,091 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:14" (1/1) ... [2024-11-09 01:12:15,096 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:14" (1/1) ... [2024-11-09 01:12:15,105 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:12:15,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:12:15,106 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:12:15,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:12:15,107 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:14" (1/1) ... [2024-11-09 01:12:15,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:12:15,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:12:15,144 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:12:15,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:12:15,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 01:12:15,181 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 01:12:15,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 01:12:15,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 01:12:15,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 01:12:15,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 01:12:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 01:12:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 01:12:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:12:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 01:12:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:12:15,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:12:15,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:12:15,417 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:12:15,419 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:12:17,146 INFO L? ?]: Removed 290 outVars from TransFormulas that were not future-live. [2024-11-09 01:12:17,147 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:12:18,710 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:12:18,710 INFO L316 CfgBuilder]: Removed 50 assume(true) statements. [2024-11-09 01:12:18,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:12:18 BoogieIcfgContainer [2024-11-09 01:12:18,712 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:12:18,714 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:12:18,714 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:12:18,719 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:12:18,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:12:13" (1/3) ... [2024-11-09 01:12:18,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5bfed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:12:18, skipping insertion in model container [2024-11-09 01:12:18,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:14" (2/3) ... [2024-11-09 01:12:18,722 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5bfed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:12:18, skipping insertion in model container [2024-11-09 01:12:18,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:12:18" (3/3) ... [2024-11-09 01:12:18,724 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test2-1.i [2024-11-09 01:12:18,744 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:12:18,745 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:12:18,830 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:12:18,839 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;@34a4b4b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:12:18,840 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:12:18,845 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 103 states have (on average 1.7281553398058251) internal successors, (178), 104 states have internal predecessors, (178), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:12:18,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 01:12:18,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:18,856 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:12:18,857 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:12:18,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:18,864 INFO L85 PathProgramCache]: Analyzing trace with hash 2050054534, now seen corresponding path program 1 times [2024-11-09 01:12:18,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:12:18,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571034451] [2024-11-09 01:12:18,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:18,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:12:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:19,075 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 01:12:19,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:12:19,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571034451] [2024-11-09 01:12:19,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571034451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:19,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:12:19,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:12:19,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075589047] [2024-11-09 01:12:19,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:19,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:12:19,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:12:19,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:12:19,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:12:19,115 INFO L87 Difference]: Start difference. First operand has 109 states, 103 states have (on average 1.7281553398058251) internal successors, (178), 104 states have internal predecessors, (178), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 01:12:21,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:12:23,191 WARN L539 Checker$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 01:12:25,216 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 01:12:26,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:12:26,820 INFO L93 Difference]: Finished difference Result 216 states and 365 transitions. [2024-11-09 01:12:26,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:12:26,827 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2024-11-09 01:12:26,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:12:26,836 INFO L225 Difference]: With dead ends: 216 [2024-11-09 01:12:26,836 INFO L226 Difference]: Without dead ends: 106 [2024-11-09 01:12:26,840 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 01:12:26,844 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:12:26,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2024-11-09 01:12:26,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-09 01:12:26,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-11-09 01:12:26,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 101 states have (on average 1.188118811881188) internal successors, (120), 101 states have internal predecessors, (120), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:12:26,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 126 transitions. [2024-11-09 01:12:26,903 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 126 transitions. Word has length 10 [2024-11-09 01:12:26,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:12:26,904 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 126 transitions. [2024-11-09 01:12:26,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 01:12:26,905 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 126 transitions. [2024-11-09 01:12:26,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 01:12:26,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:12:26,908 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, 1, 1] [2024-11-09 01:12:26,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:12:26,908 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:12:26,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:12:26,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1075366928, now seen corresponding path program 1 times [2024-11-09 01:12:26,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:12:26,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673008209] [2024-11-09 01:12:26,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:12:26,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:12:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:12:28,493 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 01:12:28,493 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:12:28,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673008209] [2024-11-09 01:12:28,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673008209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:12:28,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:12:28,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 01:12:28,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514074809] [2024-11-09 01:12:28,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:12:28,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 01:12:28,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:12:28,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 01:12:28,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:12:28,498 INFO L87 Difference]: Start difference. First operand 106 states and 126 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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 01:12:30,625 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 01:12:32,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:12:34,636 WARN L539 Checker$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 01:12:37,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:12:39,553 WARN L539 Checker$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 01:12:41,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:12:43,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:12:45,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:12:47,822 WARN L539 Checker$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 01:12:49,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:12:51,834 WARN L539 Checker$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 01:12:53,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:12:55,873 WARN L539 Checker$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 01:12:57,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:12:59,879 WARN L539 Checker$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 01:13:01,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:03,901 WARN L539 Checker$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 01:13:05,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:07,917 WARN L539 Checker$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 01:13:09,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:11,923 WARN L539 Checker$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 01:13:14,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:16,005 WARN L539 Checker$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 01:13:19,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:20,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:22,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:13:23,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:13:23,248 INFO L93 Difference]: Finished difference Result 212 states and 253 transitions. [2024-11-09 01:13:23,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:13:23,251 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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 25 [2024-11-09 01:13:23,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:13:23,253 INFO L225 Difference]: With dead ends: 212 [2024-11-09 01:13:23,253 INFO L226 Difference]: Without dead ends: 166 [2024-11-09 01:13:23,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 01:13:23,257 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 69 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 3 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:13:23,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 561 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 181 Invalid, 23 Unknown, 0 Unchecked, 54.7s Time] [2024-11-09 01:13:23,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-09 01:13:23,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 108. [2024-11-09 01:13:23,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 103 states have (on average 1.1844660194174756) internal successors, (122), 103 states have internal predecessors, (122), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:13:23,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 128 transitions. [2024-11-09 01:13:23,272 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 128 transitions. Word has length 25 [2024-11-09 01:13:23,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:13:23,275 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 128 transitions. [2024-11-09 01:13:23,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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 01:13:23,277 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 128 transitions. [2024-11-09 01:13:23,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 01:13:23,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:13:23,281 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, 1, 1] [2024-11-09 01:13:23,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 01:13:23,281 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:13:23,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:13:23,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1369231169, now seen corresponding path program 1 times [2024-11-09 01:13:23,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:13:23,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350626745] [2024-11-09 01:13:23,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:13:23,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:13:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:13:23,620 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 01:13:23,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:13:23,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350626745] [2024-11-09 01:13:23,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350626745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:13:23,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:13:23,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:13:23,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871574028] [2024-11-09 01:13:23,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:13:23,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:13:23,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:13:23,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:13:23,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:13:23,626 INFO L87 Difference]: Start difference. First operand 108 states and 128 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 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 01:13:25,654 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 01:13:27,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:30,866 WARN L539 Checker$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 01:13:32,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:35,303 WARN L539 Checker$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 01:13:37,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:39,314 WARN L539 Checker$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 01:13:41,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:43,390 WARN L539 Checker$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 01:13:43,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:13:43,877 INFO L93 Difference]: Finished difference Result 254 states and 300 transitions. [2024-11-09 01:13:43,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:13:43,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 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 54 [2024-11-09 01:13:43,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:13:43,882 INFO L225 Difference]: With dead ends: 254 [2024-11-09 01:13:43,883 INFO L226 Difference]: Without dead ends: 150 [2024-11-09 01:13:43,883 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 01:13:43,885 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 33 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:13:43,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 222 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 9 Unknown, 0 Unchecked, 20.2s Time] [2024-11-09 01:13:43,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-09 01:13:43,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2024-11-09 01:13:43,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.167832167832168) internal successors, (167), 143 states have internal predecessors, (167), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:13:43,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 173 transitions. [2024-11-09 01:13:43,902 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 173 transitions. Word has length 54 [2024-11-09 01:13:43,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:13:43,903 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 173 transitions. [2024-11-09 01:13:43,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 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 01:13:43,903 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 173 transitions. [2024-11-09 01:13:43,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 01:13:43,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:13:43,906 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] [2024-11-09 01:13:43,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 01:13:43,907 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:13:43,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:13:43,908 INFO L85 PathProgramCache]: Analyzing trace with hash 106261334, now seen corresponding path program 1 times [2024-11-09 01:13:43,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:13:43,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698509242] [2024-11-09 01:13:43,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:13:43,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:13:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:13:44,513 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 01:13:44,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:13:44,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698509242] [2024-11-09 01:13:44,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698509242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:13:44,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:13:44,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:13:44,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274012522] [2024-11-09 01:13:44,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:13:44,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:13:44,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:13:44,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:13:44,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:13:44,518 INFO L87 Difference]: Start difference. First operand 148 states and 173 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 01:13:46,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:48,564 WARN L539 Checker$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 01:13:50,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:52,580 WARN L539 Checker$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 01:13:54,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:13:56,590 WARN L539 Checker$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 01:13:58,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:14:00,823 WARN L539 Checker$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 01:14:02,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:14:04,842 WARN L539 Checker$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 01:14:06,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:14:09,621 WARN L539 Checker$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 01:14:11,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:14:13,635 WARN L539 Checker$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 01:14:14,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:14:14,942 INFO L93 Difference]: Finished difference Result 326 states and 386 transitions. [2024-11-09 01:14:14,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:14:14,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 67 [2024-11-09 01:14:14,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:14:14,950 INFO L225 Difference]: With dead ends: 326 [2024-11-09 01:14:14,950 INFO L226 Difference]: Without dead ends: 198 [2024-11-09 01:14:14,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:14:14,952 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 299 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:14:14,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 220 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 14 Unknown, 0 Unchecked, 30.4s Time] [2024-11-09 01:14:14,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-09 01:14:14,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 124. [2024-11-09 01:14:14,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 119 states have (on average 1.1596638655462186) internal successors, (138), 119 states have internal predecessors, (138), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 01:14:14,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2024-11-09 01:14:14,971 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 67 [2024-11-09 01:14:14,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:14:14,971 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2024-11-09 01:14:14,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 01:14:14,972 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2024-11-09 01:14:14,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 01:14:14,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:14:14,975 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, 1, 1] [2024-11-09 01:14:14,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 01:14:14,975 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:14:14,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:14:14,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1820447610, now seen corresponding path program 1 times [2024-11-09 01:14:14,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:14:14,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502900421] [2024-11-09 01:14:14,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:14:14,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:14:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:14:16,454 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 01:14:16,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:14:16,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502900421] [2024-11-09 01:14:16,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502900421] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:14:16,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309737895] [2024-11-09 01:14:16,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:14:16,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:14:16,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:14:16,458 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:14:16,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:14:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:14:23,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 01:14:23,236 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:14:23,297 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 01:14:23,357 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:14:23,357 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 01:14:23,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309737895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:14:23,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 01:14:23,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 6 [2024-11-09 01:14:23,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989904312] [2024-11-09 01:14:23,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:14:23,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:14:23,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:14:23,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:14:23,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:14:23,360 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:14:25,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:14:28,162 WARN L539 Checker$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 01:14:30,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:14:32,197 WARN L539 Checker$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 01:14:34,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:14:36,208 WARN L539 Checker$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 01:14:38,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:14:40,224 WARN L539 Checker$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 01:14:42,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:14:44,309 WARN L539 Checker$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 01:14:47,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:14:48,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 01:14:50,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:14:50,458 INFO L93 Difference]: Finished difference Result 270 states and 318 transitions. [2024-11-09 01:14:50,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 01:14:50,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2024-11-09 01:14:50,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:14:50,465 INFO L225 Difference]: With dead ends: 270 [2024-11-09 01:14:50,465 INFO L226 Difference]: Without dead ends: 169 [2024-11-09 01:14:50,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:14:50,467 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 67 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 3 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:14:50,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 372 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 121 Invalid, 10 Unknown, 0 Unchecked, 27.1s Time] [2024-11-09 01:14:50,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-09 01:14:50,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 126. [2024-11-09 01:14:50,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 120 states have (on average 1.1666666666666667) internal successors, (140), 121 states have internal predecessors, (140), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 01:14:50,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2024-11-09 01:14:50,483 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 75 [2024-11-09 01:14:50,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:14:50,483 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2024-11-09 01:14:50,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 01:14:50,484 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2024-11-09 01:14:50,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 01:14:50,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:14:50,486 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, 1, 1] [2024-11-09 01:14:50,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 01:14:50,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:14:50,687 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:14:50,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:14:50,688 INFO L85 PathProgramCache]: Analyzing trace with hash 737247092, now seen corresponding path program 1 times [2024-11-09 01:14:50,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:14:50,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766849642] [2024-11-09 01:14:50,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:14:50,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:14:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:14:52,711 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 01:14:52,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:14:52,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766849642] [2024-11-09 01:14:52,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766849642] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:14:52,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068211665] [2024-11-09 01:14:52,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:14:52,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:14:52,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:14:52,715 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:14:52,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a73095a2-c187-40ef-8b37-6d95b9a2e426/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 01:15:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:15:24,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 01:15:24,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:15:24,484 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 01:15:24,557 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:15:24,558 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:15:24,694 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 01:15:24,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068211665] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:15:24,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1859168082] [2024-11-09 01:15:24,724 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2024-11-09 01:15:24,724 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:15:24,728 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:15:24,733 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:15:24,734 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:16:00,602 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 397 for LOIs [2024-11-09 01:16:03,172 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:26:05,381 WARN L286 SmtUtils]: Spent 9.04m on a formula simplification. DAG size of input: 397 DAG size of output: 397 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:26:17,217 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse1 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (and (<= 2 |c_ULTIMATE.start_main_~#i~0#1.base|) (= |c_ULTIMATE.start_main_~user~0#1.offset| 0) (<= 1 |c_#StackHeapBarrier|) (= (select (select |c_#memory_$Pointer$.offset| .cse0) .cse1) |c_ULTIMATE.start_main_#t~mem64#1.offset|) (= |c_ULTIMATE.start_main_~#i~0#1.offset| 0) (exists ((|v_#memory_int_129| (Array Int (Array Int Int))) (|v_#memory_int_415| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_106| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_107| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_317| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_108| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_108| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_317| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_107| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_106| (Array Int (Array Int Int))) (|v_#memory_int_128| (Array Int (Array Int Int))) (|v_#length_33| (Array Int Int)) (|v_ULTIMATE.start_main_#t~mem54#1.base_13| Int) (|v_#valid_49| (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc61#1.base_6| Int)) (let ((.cse32 (select (select |v_#memory_$Pointer$.base_107| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse33 (select (select |v_#memory_$Pointer$.offset_108| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse29 (select (select |v_#memory_$Pointer$.base_317| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse30 (+ (select (select |v_#memory_$Pointer$.offset_317| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 16))) (let ((.cse17 (store |v_#memory_$Pointer$.offset_317| .cse29 (store (select |v_#memory_$Pointer$.offset_317| .cse29) .cse30 8))) (.cse27 (store |v_#memory_$Pointer$.base_317| .cse29 (store (select |v_#memory_$Pointer$.base_317| .cse29) .cse30 |c_ULTIMATE.start_main_~user~0#1.base|))) (.cse24 (store |v_#memory_$Pointer$.offset_108| .cse32 (store (select |v_#memory_$Pointer$.offset_108| .cse32) .cse33 0))) (.cse28 (store |v_#memory_$Pointer$.base_107| .cse32 (store (select |v_#memory_$Pointer$.base_107| .cse32) .cse33 |v_ULTIMATE.start_main_#t~malloc61#1.base_6|)))) (let ((.cse22 (select (select .cse28 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse23 (+ 40 (select (select .cse24 |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse25 (select (select |v_#memory_$Pointer$.base_108| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse26 (+ (select (select |v_#memory_$Pointer$.offset_106| |c_ULTIMATE.start_main_~user~0#1.base|) 8) 20)) (.cse20 (select (select |v_#memory_$Pointer$.base_106| |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse21 (+ 8 (select (select |v_#memory_$Pointer$.offset_107| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (.cse18 (select (select .cse27 |c_ULTIMATE.start_main_~user~0#1.base|) 8)) (.cse19 (+ 4 (select (select .cse17 |c_ULTIMATE.start_main_~user~0#1.base|) 8)))) (and (= |c_#valid| (store |v_#valid_49| |v_ULTIMATE.start_main_#t~malloc61#1.base_6| 1)) (let ((.cse2 (exists ((|v_#Ultimate.C_memset_#t~loopctr226_27| Int)) (and (<= 0 |v_#Ultimate.C_memset_#t~loopctr226_27|) (<= 44 (mod |v_#Ultimate.C_memset_#t~loopctr226_27| 4294967296))))) (.cse6 (exists ((|v_#memory_$Pointer$.offset_314| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_315| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_21| (Array Int (Array Int Int)))) (let ((.cse16 (select |v_#memory_$Pointer$.offset_21| |c_ULTIMATE.start_main_~user~0#1.base|))) (and (= |v_#memory_$Pointer$.offset_315| (store |v_#memory_$Pointer$.offset_21| |c_ULTIMATE.start_main_~user~0#1.base| (store (store .cse16 28 0) 32 (select (select |v_#memory_$Pointer$.offset_315| |c_ULTIMATE.start_main_~user~0#1.base|) 32)))) (= (store |v_#memory_$Pointer$.offset_314| |c_ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.offset_314| |c_ULTIMATE.start_main_~user~0#1.base|) 36 (select .cse16 36))) |v_#memory_$Pointer$.offset_21|)))))) (or (and .cse2 (exists ((|v_#memory_int_412| (Array Int (Array Int Int))) (|v_#memory_int_34| (Array Int (Array Int Int))) (|v_#memory_int_127| (Array Int (Array Int Int))) (|v_#memory_int_414| (Array Int (Array Int Int))) (|v_#memory_int_BEFORE_CALL_20| (Array Int (Array Int Int)))) (let ((.cse5 (select |v_#memory_int_127| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse3 (select |v_#memory_int_414| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse4 (select |v_#memory_int_34| |c_ULTIMATE.start_main_~user~0#1.base|))) (and (= (store |v_#memory_int_414| |c_ULTIMATE.start_main_~user~0#1.base| (store .cse3 8 (select (select |v_#memory_int_BEFORE_CALL_20| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) |v_#memory_int_BEFORE_CALL_20|) (= (store |v_#memory_int_34| |c_ULTIMATE.start_main_~user~0#1.base| (store (store .cse4 32 4) 16 (select .cse5 16))) |v_#memory_int_127|) (= (store |v_#memory_int_127| |c_ULTIMATE.start_main_~user~0#1.base| (store .cse5 12 (select .cse3 12))) |v_#memory_int_414|) (= (store |v_#memory_int_412| |c_ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_412| |c_ULTIMATE.start_main_~user~0#1.base|) 36 |c_ULTIMATE.start_main_~_ha_hashv~0#1|) 28 (select .cse4 28))) |v_#memory_int_34|)))) .cse6 (exists ((|v_#memory_$Pointer$.base_21| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_315| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_14| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_314| (Array Int (Array Int Int))) (|v_#length_32| (Array Int Int)) (|v_#valid_48| (Array Int Int))) (let ((.cse9 (select |v_#memory_$Pointer$.base_315| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse8 (select |v_#memory_$Pointer$.base_21| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse7 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_14| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (and (= |v_ULTIMATE.start_main_#t~mem54#1.base_13| .cse7) (= |v_#memory_$Pointer$.base_315| (store |v_#memory_$Pointer$.base_21| |c_ULTIMATE.start_main_~user~0#1.base| (store (store .cse8 28 |c_ULTIMATE.start_main_~user~0#1.base|) 32 (select .cse9 32)))) (not (= .cse7 0)) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_14| (store |v_#memory_$Pointer$.base_315| |c_ULTIMATE.start_main_~user~0#1.base| (store (store (store .cse9 16 0) 12 0) 8 .cse7))) (<= (+ .cse7 1) |c_#StackHeapBarrier|) (= (store |v_#memory_$Pointer$.base_314| |c_ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.base_314| |c_ULTIMATE.start_main_~user~0#1.base|) 36 (select .cse8 36))) |v_#memory_$Pointer$.base_21|) (= (select |v_#valid_48| .cse7) 0) (= (store |v_#valid_48| .cse7 1) |v_#valid_49|) (= (store |v_#length_32| .cse7 44) |v_#length_33|))))) (and .cse2 .cse6 (exists ((|v_#memory_int_412| (Array Int (Array Int Int))) (|v_#memory_int_34| (Array Int (Array Int Int))) (|v_#memory_int_414| (Array Int (Array Int Int))) (|v_#memory_int_127| (Array Int (Array Int Int))) (|v_#memory_int_BEFORE_CALL_18| (Array Int (Array Int Int)))) (let ((.cse12 (select |v_#memory_int_127| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse10 (select |v_#memory_int_414| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse11 (select |v_#memory_int_34| |c_ULTIMATE.start_main_~user~0#1.base|))) (and (= (store |v_#memory_int_414| |c_ULTIMATE.start_main_~user~0#1.base| (store .cse10 8 (select (select |v_#memory_int_BEFORE_CALL_18| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) |v_#memory_int_BEFORE_CALL_18|) (= (store |v_#memory_int_34| |c_ULTIMATE.start_main_~user~0#1.base| (store (store .cse11 32 4) 16 (select .cse12 16))) |v_#memory_int_127|) (= (store |v_#memory_int_127| |c_ULTIMATE.start_main_~user~0#1.base| (store .cse12 12 (select .cse10 12))) |v_#memory_int_414|) (= (store |v_#memory_int_412| |c_ULTIMATE.start_main_~user~0#1.base| (store (store (select |v_#memory_int_412| |c_ULTIMATE.start_main_~user~0#1.base|) 36 |c_ULTIMATE.start_main_~_ha_hashv~0#1|) 28 (select .cse11 28))) |v_#memory_int_34|)))) (exists ((|v_#memory_$Pointer$.base_21| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_315| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_314| (Array Int (Array Int Int))) (|v_#length_32| (Array Int Int)) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_13| (Array Int (Array Int Int))) (|v_#valid_48| (Array Int Int))) (let ((.cse13 (select |v_#memory_$Pointer$.base_21| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse14 (select |v_#memory_$Pointer$.base_315| |c_ULTIMATE.start_main_~user~0#1.base|)) (.cse15 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_13| |c_ULTIMATE.start_main_~user~0#1.base|) 8))) (and (= |v_#memory_$Pointer$.base_315| (store |v_#memory_$Pointer$.base_21| |c_ULTIMATE.start_main_~user~0#1.base| (store (store .cse13 28 |c_ULTIMATE.start_main_~user~0#1.base|) 32 (select .cse14 32)))) (= |v_#valid_49| (store |v_#valid_48| .cse15 1)) (= (select |v_#valid_48| .cse15) 0) (<= (+ .cse15 1) |c_#StackHeapBarrier|) (= (store |v_#memory_$Pointer$.base_314| |c_ULTIMATE.start_main_~user~0#1.base| (store (select |v_#memory_$Pointer$.base_314| |c_ULTIMATE.start_main_~user~0#1.base|) 36 (select .cse13 36))) |v_#memory_$Pointer$.base_21|) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_13| (store |v_#memory_$Pointer$.base_315| |c_ULTIMATE.start_main_~user~0#1.base| (store (store (store .cse14 16 0) 12 0) 8 .cse15))) (= |v_#length_33| (store |v_#length_32| .cse15 44)) (not (= .cse15 0)) (= .cse15 |v_ULTIMATE.start_main_#t~mem54#1.base_13|))))))) (= |v_#memory_$Pointer$.offset_107| (store .cse17 .cse18 (store (select .cse17 .cse18) .cse19 (select (select |v_#memory_$Pointer$.offset_107| .cse18) .cse19)))) (= (store |v_#memory_$Pointer$.offset_107| .cse20 (store (select |v_#memory_$Pointer$.offset_107| .cse20) .cse21 (select (select |v_#memory_$Pointer$.offset_106| .cse20) .cse21))) |v_#memory_$Pointer$.offset_106|) (= (store |v_#memory_int_129| .cse22 (store (select |v_#memory_int_129| .cse22) .cse23 2685476833)) |c_#memory_int|) (= (store .cse24 .cse22 (store (select .cse24 .cse22) .cse23 (select (select |c_#memory_$Pointer$.offset| .cse22) .cse23))) |c_#memory_$Pointer$.offset|) (= (store |v_#memory_$Pointer$.base_108| .cse25 (store (select |v_#memory_$Pointer$.base_108| .cse25) .cse26 (select (select |v_#memory_$Pointer$.base_107| .cse25) .cse26))) |v_#memory_$Pointer$.base_107|) (= (store .cse27 .cse18 (store (select .cse27 .cse18) .cse19 (select (select |v_#memory_$Pointer$.base_106| .cse18) .cse19))) |v_#memory_$Pointer$.base_106|) (= (select |v_#valid_49| |v_ULTIMATE.start_main_#t~malloc61#1.base_6|) 0) (= (store |v_#memory_$Pointer$.offset_106| .cse25 (store (select |v_#memory_$Pointer$.offset_106| .cse25) .cse26 (select (select |v_#memory_$Pointer$.offset_108| .cse25) .cse26))) |v_#memory_$Pointer$.offset_108|) (= |c_#memory_$Pointer$.base| (store .cse28 .cse22 (store (select .cse28 .cse22) .cse23 (select (select |c_#memory_$Pointer$.base| .cse22) .cse23)))) (<= (+ |v_ULTIMATE.start_main_#t~malloc61#1.base_6| 1) |c_#StackHeapBarrier|) (not (= |v_ULTIMATE.start_main_#t~malloc61#1.base_6| 0)) (= (store |v_#memory_$Pointer$.base_106| .cse20 (store (select |v_#memory_$Pointer$.base_106| .cse20) .cse21 (select (select |v_#memory_$Pointer$.base_108| .cse20) .cse21))) |v_#memory_$Pointer$.base_108|) (= (store |v_#memory_int_415| .cse29 (store (select |v_#memory_int_415| .cse29) .cse30 (select (select |v_#memory_int_128| .cse29) .cse30))) |v_#memory_int_128|) (= (let ((.cse31 (let ((.cse34 (let ((.cse35 (store |v_#memory_int_128| .cse18 (store (select |v_#memory_int_128| .cse18) .cse19 32)))) (store .cse35 .cse20 (store (select .cse35 .cse20) .cse21 5))))) (store .cse34 .cse25 (store (select .cse34 .cse25) .cse26 8))))) (store .cse31 .cse32 (store (select .cse31 .cse32) .cse33 (select (select |v_#memory_int_129| .cse32) .cse33)))) |v_#memory_int_129|) (= (store |v_#length_33| |v_ULTIMATE.start_main_#t~malloc61#1.base_6| 384) |c_#length|)))))) (= (select (select |c_#memory_$Pointer$.base| .cse0) .cse1) |c_ULTIMATE.start_main_#t~mem64#1.base|))) is different from false