./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.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_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/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_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/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_eff278ba-9ddd-4052-bdf9-80d8df4df64e/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 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:17:34,742 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:17:34,837 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:17:34,842 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:17:34,844 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:17:34,885 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:17:34,886 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:17:34,887 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:17:34,888 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:17:34,889 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:17:34,889 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:17:34,890 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:17:34,890 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:17:34,890 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:17:34,891 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:17:34,891 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:17:34,891 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:17:34,892 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:17:34,892 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:17:34,892 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:17:34,892 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:17:34,897 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:17:34,898 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:17:34,898 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:17:34,898 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:17:34,898 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:17:34,899 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:17:34,899 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:17:34,899 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:17:34,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:17:34,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:17:34,900 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:17:34,900 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:17:34,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:17:34,904 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:17:34,904 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:17:34,904 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:17:34,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:17:34,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:17:34,905 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:17:34,905 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:17:34,907 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:17:34,907 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:17:34,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:17:34,907 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:17:34,908 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:17:34,909 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:17:34,909 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_eff278ba-9ddd-4052-bdf9-80d8df4df64e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2024-11-09 05:17:35,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:17:35,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:17:35,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:17:35,193 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:17:35,193 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:17:35,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i Unable to find full path for "g++" [2024-11-09 05:17:37,297 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:17:37,658 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:17:37,658 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i [2024-11-09 05:17:37,679 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/data/5a326c2bd/9a6846bd8e094ec29e589248957c6bf0/FLAG589b230d5 [2024-11-09 05:17:37,695 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/data/5a326c2bd/9a6846bd8e094ec29e589248957c6bf0 [2024-11-09 05:17:37,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:17:37,700 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:17:37,701 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:17:37,703 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:17:37,711 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:17:37,711 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:17:37" (1/1) ... [2024-11-09 05:17:37,715 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34db8014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:37, skipping insertion in model container [2024-11-09 05:17:37,715 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:17:37" (1/1) ... [2024-11-09 05:17:37,782 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:17:38,373 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_eff278ba-9ddd-4052-bdf9-80d8df4df64e/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i[37435,37448] [2024-11-09 05:17:38,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:17:38,600 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:17:38,663 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_eff278ba-9ddd-4052-bdf9-80d8df4df64e/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i[37435,37448] [2024-11-09 05:17:38,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:17:38,832 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:17:38,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:38 WrapperNode [2024-11-09 05:17:38,833 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:17:38,834 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:17:38,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:17:38,835 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:17:38,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:38" (1/1) ... [2024-11-09 05:17:38,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:38" (1/1) ... [2024-11-09 05:17:38,953 INFO L138 Inliner]: procedures = 207, calls = 272, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1408 [2024-11-09 05:17:38,953 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:17:38,954 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:17:38,954 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:17:38,954 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:17:38,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:38" (1/1) ... [2024-11-09 05:17:38,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:38" (1/1) ... [2024-11-09 05:17:38,976 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:38" (1/1) ... [2024-11-09 05:17:38,976 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:38" (1/1) ... [2024-11-09 05:17:39,020 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:38" (1/1) ... [2024-11-09 05:17:39,059 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:38" (1/1) ... [2024-11-09 05:17:39,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:38" (1/1) ... [2024-11-09 05:17:39,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:38" (1/1) ... [2024-11-09 05:17:39,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:17:39,083 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:17:39,084 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:17:39,084 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:17:39,085 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:38" (1/1) ... [2024-11-09 05:17:39,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:17:39,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:17:39,169 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:17:39,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:17:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 05:17:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 05:17:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:17:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:17:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:17:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:17:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:17:39,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:17:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:17:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 05:17:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:17:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:17:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:17:39,467 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:17:39,470 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:17:41,258 INFO L? ?]: Removed 318 outVars from TransFormulas that were not future-live. [2024-11-09 05:17:41,259 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:17:42,871 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:17:42,872 INFO L316 CfgBuilder]: Removed 58 assume(true) statements. [2024-11-09 05:17:42,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:17:42 BoogieIcfgContainer [2024-11-09 05:17:42,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:17:42,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:17:42,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:17:42,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:17:42,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:17:37" (1/3) ... [2024-11-09 05:17:42,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec418a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:17:42, skipping insertion in model container [2024-11-09 05:17:42,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:38" (2/3) ... [2024-11-09 05:17:42,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec418a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:17:42, skipping insertion in model container [2024-11-09 05:17:42,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:17:42" (3/3) ... [2024-11-09 05:17:42,881 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test2-2.i [2024-11-09 05:17:42,901 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:17:42,901 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:17:42,996 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:17:43,004 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;@514c94e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:17:43,004 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:17:43,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 120 states have (on average 1.725) internal successors, (207), 121 states have internal predecessors, (207), 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 05:17:43,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 05:17:43,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:17:43,021 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:17:43,022 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:17:43,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:17:43,028 INFO L85 PathProgramCache]: Analyzing trace with hash 700994620, now seen corresponding path program 1 times [2024-11-09 05:17:43,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:17:43,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174312171] [2024-11-09 05:17:43,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:43,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:17:43,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:17:43,307 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 05:17:43,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:17:43,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174312171] [2024-11-09 05:17:43,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174312171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:17:43,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:17:43,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:17:43,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856358374] [2024-11-09 05:17:43,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:17:43,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:17:43,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:17:43,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:17:43,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:17:43,359 INFO L87 Difference]: Start difference. First operand has 126 states, 120 states have (on average 1.725) internal successors, (207), 121 states have internal predecessors, (207), 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 05:17:44,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:17:46,746 WARN L539 Checker$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 05:17:48,766 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 05:17:49,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:17:49,843 INFO L93 Difference]: Finished difference Result 250 states and 423 transitions. [2024-11-09 05:17:49,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:17:49,851 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 05:17:49,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:17:49,860 INFO L225 Difference]: With dead ends: 250 [2024-11-09 05:17:49,860 INFO L226 Difference]: Without dead ends: 106 [2024-11-09 05:17:49,863 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 05:17:49,867 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:17:49,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2024-11-09 05:17:49,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-09 05:17:49,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-11-09 05:17:49,914 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 05:17:49,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 126 transitions. [2024-11-09 05:17:49,918 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 126 transitions. Word has length 10 [2024-11-09 05:17:49,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:17:49,919 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 126 transitions. [2024-11-09 05:17:49,919 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 05:17:49,920 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 126 transitions. [2024-11-09 05:17:49,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 05:17:49,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:17:49,922 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 05:17:49,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:17:49,923 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:17:49,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:17:49,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1430421955, now seen corresponding path program 1 times [2024-11-09 05:17:49,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:17:49,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967410395] [2024-11-09 05:17:49,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:49,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:17:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:17:51,294 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 05:17:51,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:17:51,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967410395] [2024-11-09 05:17:51,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967410395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:17:51,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:17:51,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 05:17:51,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375871861] [2024-11-09 05:17:51,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:17:51,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:17:51,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:17:51,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:17:51,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:17:51,299 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 05:17:53,416 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 05:17:56,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:17:57,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:17:59,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:01,921 WARN L539 Checker$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 05:18:03,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:05,993 WARN L539 Checker$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 05:18:08,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:10,646 WARN L539 Checker$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 05:18:11,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:14,060 WARN L539 Checker$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 05:18:16,066 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 05:18:16,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:16,672 INFO L93 Difference]: Finished difference Result 212 states and 253 transitions. [2024-11-09 05:18:16,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:18:16,677 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 05:18:16,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:16,683 INFO L225 Difference]: With dead ends: 212 [2024-11-09 05:18:16,683 INFO L226 Difference]: Without dead ends: 166 [2024-11-09 05:18:16,684 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 05:18:16,685 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 71 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 3 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:16,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 380 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 116 Invalid, 10 Unknown, 0 Unchecked, 25.3s Time] [2024-11-09 05:18:16,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-09 05:18:16,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 108. [2024-11-09 05:18:16,708 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 05:18:16,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 128 transitions. [2024-11-09 05:18:16,712 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 128 transitions. Word has length 25 [2024-11-09 05:18:16,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:16,713 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 128 transitions. [2024-11-09 05:18:16,713 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 05:18:16,713 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 128 transitions. [2024-11-09 05:18:16,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 05:18:16,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:16,716 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 05:18:16,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:18:16,717 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:18:16,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:16,721 INFO L85 PathProgramCache]: Analyzing trace with hash 104881175, now seen corresponding path program 1 times [2024-11-09 05:18:16,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:16,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997376675] [2024-11-09 05:18:16,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:16,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:17,130 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 05:18:17,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:17,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997376675] [2024-11-09 05:18:17,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997376675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:18:17,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:18:17,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:18:17,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095105909] [2024-11-09 05:18:17,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:17,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:18:17,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:17,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:18:17,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:18:17,138 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 05:18:19,167 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 05:18:21,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:23,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:25,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:27,278 WARN L539 Checker$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 05:18:29,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:31,294 WARN L539 Checker$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 05:18:33,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:35,306 WARN L539 Checker$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 05:18:36,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:38,789 WARN L539 Checker$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 05:18:40,802 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 05:18:41,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:41,363 INFO L93 Difference]: Finished difference Result 254 states and 300 transitions. [2024-11-09 05:18:41,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:18:41,367 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 05:18:41,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:41,368 INFO L225 Difference]: With dead ends: 254 [2024-11-09 05:18:41,369 INFO L226 Difference]: Without dead ends: 150 [2024-11-09 05:18:41,369 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 05:18:41,370 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 33 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:41,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 222 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 10 Unknown, 0 Unchecked, 24.2s Time] [2024-11-09 05:18:41,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-09 05:18:41,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2024-11-09 05:18:41,391 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 05:18:41,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 173 transitions. [2024-11-09 05:18:41,393 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 173 transitions. Word has length 54 [2024-11-09 05:18:41,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:41,394 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 173 transitions. [2024-11-09 05:18:41,394 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 05:18:41,394 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 173 transitions. [2024-11-09 05:18:41,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 05:18:41,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:41,396 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 05:18:41,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:18:41,397 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:18:41,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:41,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1395617538, now seen corresponding path program 1 times [2024-11-09 05:18:41,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:41,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524531003] [2024-11-09 05:18:41,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:41,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:42,007 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 05:18:42,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:42,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524531003] [2024-11-09 05:18:42,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524531003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:18:42,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:18:42,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:18:42,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595372022] [2024-11-09 05:18:42,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:42,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:18:42,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:42,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:18:42,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:18:42,014 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 05:18:44,051 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 05:18:46,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:48,601 WARN L539 Checker$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 05:18:50,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:53,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:55,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:18:57,619 WARN L539 Checker$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 05:18:59,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:19:01,754 WARN L539 Checker$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 05:19:03,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:19:05,765 WARN L539 Checker$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 05:19:06,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:06,063 INFO L93 Difference]: Finished difference Result 326 states and 386 transitions. [2024-11-09 05:19:06,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:19:06,068 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 05:19:06,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:06,070 INFO L225 Difference]: With dead ends: 326 [2024-11-09 05:19:06,070 INFO L226 Difference]: Without dead ends: 198 [2024-11-09 05:19:06,072 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 05:19:06,073 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 314 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:06,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 210 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 11 Unknown, 0 Unchecked, 24.0s Time] [2024-11-09 05:19:06,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-09 05:19:06,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 124. [2024-11-09 05:19:06,089 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 05:19:06,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2024-11-09 05:19:06,090 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 67 [2024-11-09 05:19:06,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:06,091 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2024-11-09 05:19:06,091 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 05:19:06,092 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2024-11-09 05:19:06,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 05:19:06,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:06,094 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 05:19:06,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:19:06,095 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:19:06,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:06,096 INFO L85 PathProgramCache]: Analyzing trace with hash -2122589724, now seen corresponding path program 1 times [2024-11-09 05:19:06,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:06,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015088439] [2024-11-09 05:19:06,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:06,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:07,645 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 05:19:07,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:07,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015088439] [2024-11-09 05:19:07,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015088439] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:19:07,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981254060] [2024-11-09 05:19:07,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:07,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:19:07,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:19:07,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:19:07,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:19:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:18,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:19:18,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:19:18,586 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:18,587 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:19:18,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981254060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:18,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:19:18,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-09 05:19:18,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993023974] [2024-11-09 05:19:18,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:18,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:19:18,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:18,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:19:18,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:19:18,590 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:19:21,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:19:23,118 WARN L539 Checker$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 05:19:25,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:19:27,237 WARN L539 Checker$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 05:19:29,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:19:31,247 WARN L539 Checker$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 05:19:33,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:19:35,263 WARN L539 Checker$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 05:19:37,268 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 05:19:38,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:38,416 INFO L93 Difference]: Finished difference Result 227 states and 267 transitions. [2024-11-09 05:19:38,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:19:38,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 75 [2024-11-09 05:19:38,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:38,424 INFO L225 Difference]: With dead ends: 227 [2024-11-09 05:19:38,424 INFO L226 Difference]: Without dead ends: 126 [2024-11-09 05:19:38,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:19:38,425 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:38,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 314 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 9 Unknown, 0 Unchecked, 19.8s Time] [2024-11-09 05:19:38,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-09 05:19:38,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2024-11-09 05:19:38,437 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 05:19:38,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2024-11-09 05:19:38,439 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 75 [2024-11-09 05:19:38,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:38,439 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2024-11-09 05:19:38,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:19:38,440 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2024-11-09 05:19:38,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-09 05:19:38,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:38,442 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 05:19:38,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 05:19:38,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:19:38,643 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:19:38,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:38,644 INFO L85 PathProgramCache]: Analyzing trace with hash -536883872, now seen corresponding path program 1 times [2024-11-09 05:19:38,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:38,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845897153] [2024-11-09 05:19:38,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:38,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:40,468 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 05:19:40,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:40,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845897153] [2024-11-09 05:19:40,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845897153] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:19:40,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934285675] [2024-11-09 05:19:40,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:40,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:19:40,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:19:40,471 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:19:40,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:19:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:49,362 INFO L255 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 05:19:49,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:19:49,410 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 05:19:49,410 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:19:49,527 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 05:19:49,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934285675] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:19:49,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [463595990] [2024-11-09 05:19:49,563 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2024-11-09 05:19:49,563 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:19:49,567 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:19:49,572 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:19:49,573 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:20:30,147 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 397 for LOIs [2024-11-09 05:20:35,328 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:21:06,488 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (= |c_#Ultimate.C_memset_#amount| 384)) (.cse0 (<= 1 |c_#StackHeapBarrier|)) (.cse3 (= |c_#Ultimate.C_memset_#ptr.offset| 0)) (.cse1 (= |c_#Ultimate.C_memset_#value| 0)) (.cse4 (= 44 |c_#Ultimate.C_memset_#amount|))) (and (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse1 .cse4)) (let ((.cse5 (= |c_#memory_$Pointer$.base| |c_old(#memory_$Pointer$.base)|)) (.cse44 (= |c_old(#memory_int)| |c_#memory_int|)) (.cse45 (= |c_#memory_$Pointer$.offset| |c_old(#memory_$Pointer$.offset)|))) (or (and .cse5 (exists ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| Int) (|v_#memory_$Pointer$.offset_413| (Array Int (Array Int Int))) (|v_#valid_62| (Array Int Int)) (|v_#length_33| (Array Int Int)) (|v_ULTIMATE.start_main_#t~mem54#1.base_13| Int) (|v_ULTIMATE.start_main_~_ha_hashv~0#1_BEFORE_CALL_13| Int) (|v_#memory_$Pointer$.base_413| (Array Int (Array Int Int))) (|v_#memory_int_145| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_136| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_135| (Array Int (Array Int Int))) (|v_#memory_int_146| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_134| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_134| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_135| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~malloc61#1.base_6| Int) (|v_#memory_$Pointer$.offset_136| (Array Int (Array Int Int))) (|v_#memory_int_482| (Array Int (Array Int Int)))) (let ((.cse13 (select (select |v_#memory_$Pointer$.base_135| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)) (.cse14 (select (select |v_#memory_$Pointer$.offset_136| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)) (.cse39 (select (select |v_#memory_$Pointer$.base_413| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)) (.cse40 (+ (select (select |v_#memory_$Pointer$.offset_413| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8) 16))) (let ((.cse42 (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)) (.cse43 (select (select |c_old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)) (.cse41 (store |v_#memory_$Pointer$.offset_413| .cse39 (store (select |v_#memory_$Pointer$.offset_413| .cse39) .cse40 8))) (.cse9 (store |v_#memory_$Pointer$.base_413| .cse39 (store (select |v_#memory_$Pointer$.base_413| .cse39) .cse40 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|))) (.cse38 (store |v_#memory_$Pointer$.offset_136| .cse13 (store (select |v_#memory_$Pointer$.offset_136| .cse13) .cse14 0))) (.cse6 (store |v_#memory_$Pointer$.base_135| .cse13 (store (select |v_#memory_$Pointer$.base_135| .cse13) .cse14 |v_ULTIMATE.start_main_#t~malloc61#1.base_6|)))) (let ((.cse19 (select (select |v_#memory_$Pointer$.base_134| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)) (.cse20 (+ (select (select |v_#memory_$Pointer$.offset_135| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8) 8)) (.cse7 (select (select .cse6 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)) (.cse8 (+ 40 (select (select .cse38 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8))) (.cse10 (select (select .cse9 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)) (.cse11 (+ (select (select .cse41 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8) 4)) (.cse16 (select (select |v_#memory_$Pointer$.base_136| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)) (.cse17 (+ (select (select |v_#memory_$Pointer$.offset_134| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8) 20)) (.cse36 (select (select |c_old(#memory_$Pointer$.offset)| .cse42) .cse43)) (.cse37 (select (select |c_old(#memory_$Pointer$.base)| .cse42) .cse43))) (and (= (store .cse6 .cse7 (store (select .cse6 .cse7) .cse8 (select (select |c_old(#memory_$Pointer$.base)| .cse7) .cse8))) |c_old(#memory_$Pointer$.base)|) (= (store .cse9 .cse10 (store (select .cse9 .cse10) .cse11 (select (select |v_#memory_$Pointer$.base_134| .cse10) .cse11))) |v_#memory_$Pointer$.base_134|) (= (let ((.cse12 (let ((.cse15 (let ((.cse18 (store |v_#memory_int_145| .cse10 (store (select |v_#memory_int_145| .cse10) .cse11 32)))) (store .cse18 .cse19 (store (select .cse18 .cse19) .cse20 5))))) (store .cse15 .cse16 (store (select .cse15 .cse16) .cse17 8))))) (store .cse12 .cse13 (store (select .cse12 .cse13) .cse14 (select (select |v_#memory_int_146| .cse13) .cse14)))) |v_#memory_int_146|) (= (store |v_#memory_int_146| .cse7 (store (select |v_#memory_int_146| .cse7) .cse8 2685476833)) |c_old(#memory_int)|) (= (store |v_#memory_$Pointer$.offset_135| .cse19 (store (select |v_#memory_$Pointer$.offset_135| .cse19) .cse20 (select (select |v_#memory_$Pointer$.offset_134| .cse19) .cse20))) |v_#memory_$Pointer$.offset_134|) (let ((.cse21 (exists ((|v_#Ultimate.C_memset_#t~loopctr272_27| Int)) (and (<= 0 |v_#Ultimate.C_memset_#t~loopctr272_27|) (<= 44 (mod |v_#Ultimate.C_memset_#t~loopctr272_27| 4294967296))))) (.cse25 (exists ((|v_#memory_$Pointer$.offset_49| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_410| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_411| (Array Int (Array Int Int)))) (let ((.cse35 (select |v_#memory_$Pointer$.offset_49| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|))) (and (= (store |v_#memory_$Pointer$.offset_410| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (select |v_#memory_$Pointer$.offset_410| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 36 (select .cse35 36))) |v_#memory_$Pointer$.offset_49|) (= |v_#memory_$Pointer$.offset_411| (store |v_#memory_$Pointer$.offset_49| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (store .cse35 28 0) 32 (select (select |v_#memory_$Pointer$.offset_411| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 32))))))))) (or (and .cse21 (exists ((|v_#valid_61| (Array Int Int)) (|v_#memory_$Pointer$.base_49| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_411| (Array Int (Array Int Int))) (|v_#length_32| (Array Int Int)) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_13| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_410| (Array Int (Array Int Int)))) (let ((.cse23 (select |v_#memory_$Pointer$.base_49| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|)) (.cse24 (select |v_#memory_$Pointer$.base_411| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|)) (.cse22 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_13| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8))) (and (= (store |v_#length_32| .cse22 44) |v_#length_33|) (not (= .cse22 0)) (= (store |v_#memory_$Pointer$.base_410| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (select |v_#memory_$Pointer$.base_410| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 36 (select .cse23 36))) |v_#memory_$Pointer$.base_49|) (= (store |v_#memory_$Pointer$.base_411| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (store (store .cse24 16 0) 12 0) 8 .cse22)) |v_old(#memory_$Pointer$.base)_AFTER_CALL_13|) (<= (+ .cse22 1) |c_#StackHeapBarrier|) (= (store |v_#memory_$Pointer$.base_49| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (store .cse23 28 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 32 (select .cse24 32))) |v_#memory_$Pointer$.base_411|) (= (select |v_#valid_61| .cse22) 0) (= (store |v_#valid_61| .cse22 1) |v_#valid_62|) (= |v_ULTIMATE.start_main_#t~mem54#1.base_13| .cse22)))) .cse25 (exists ((|v_#memory_int_51| (Array Int (Array Int Int))) (|v_old(#memory_int)_AFTER_CALL_13| (Array Int (Array Int Int))) (|v_#memory_int_479| (Array Int (Array Int Int))) (|v_#memory_int_144| (Array Int (Array Int Int))) (|v_#memory_int_481| (Array Int (Array Int Int)))) (let ((.cse26 (select |v_#memory_int_144| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|)) (.cse28 (select |v_#memory_int_51| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|)) (.cse27 (select |v_#memory_int_481| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|))) (and (= (store |v_#memory_int_144| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store .cse26 12 (select .cse27 12))) |v_#memory_int_481|) (= (store |v_#memory_int_51| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (store .cse28 32 4) 16 (select .cse26 16))) |v_#memory_int_144|) (= |v_#memory_int_51| (store |v_#memory_int_479| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (store (select |v_#memory_int_479| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 36 |v_ULTIMATE.start_main_~_ha_hashv~0#1_BEFORE_CALL_13|) 28 (select .cse28 28)))) (= |v_old(#memory_int)_AFTER_CALL_13| (store |v_#memory_int_481| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store .cse27 8 (select (select |v_old(#memory_int)_AFTER_CALL_13| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8)))))))) (and (exists ((|v_#valid_61| (Array Int Int)) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_14| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_49| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_411| (Array Int (Array Int Int))) (|v_#length_32| (Array Int Int)) (|v_#memory_$Pointer$.base_410| (Array Int (Array Int Int)))) (let ((.cse31 (select |v_#memory_$Pointer$.base_49| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|)) (.cse30 (select |v_#memory_$Pointer$.base_411| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|)) (.cse29 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_14| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8))) (and (<= (+ .cse29 1) |c_#StackHeapBarrier|) (= |v_old(#memory_$Pointer$.base)_AFTER_CALL_14| (store |v_#memory_$Pointer$.base_411| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (store (store .cse30 16 0) 12 0) 8 .cse29))) (= (store |v_#length_32| .cse29 44) |v_#length_33|) (= (select |v_#valid_61| .cse29) 0) (= (store |v_#memory_$Pointer$.base_410| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (select |v_#memory_$Pointer$.base_410| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 36 (select .cse31 36))) |v_#memory_$Pointer$.base_49|) (not (= .cse29 0)) (= (store |v_#memory_$Pointer$.base_49| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (store .cse31 28 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 32 (select .cse30 32))) |v_#memory_$Pointer$.base_411|) (= .cse29 |v_ULTIMATE.start_main_#t~mem54#1.base_13|) (= (store |v_#valid_61| .cse29 1) |v_#valid_62|)))) .cse21 (exists ((|v_#memory_int_51| (Array Int (Array Int Int))) (|v_#memory_int_479| (Array Int (Array Int Int))) (|v_#memory_int_BEFORE_CALL_20| (Array Int (Array Int Int))) (|v_#memory_int_144| (Array Int (Array Int Int))) (|v_#memory_int_481| (Array Int (Array Int Int)))) (let ((.cse32 (select |v_#memory_int_144| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|)) (.cse34 (select |v_#memory_int_51| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|)) (.cse33 (select |v_#memory_int_481| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|))) (and (= (store |v_#memory_int_144| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store .cse32 12 (select .cse33 12))) |v_#memory_int_481|) (= (store |v_#memory_int_51| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (store .cse34 32 4) 16 (select .cse32 16))) |v_#memory_int_144|) (= |v_#memory_int_51| (store |v_#memory_int_479| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store (store (select |v_#memory_int_479| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 36 |v_ULTIMATE.start_main_~_ha_hashv~0#1_BEFORE_CALL_13|) 28 (select .cse34 28)))) (= (store |v_#memory_int_481| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13| (store .cse33 8 (select (select |v_#memory_int_BEFORE_CALL_20| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_13|) 8))) |v_#memory_int_BEFORE_CALL_20|)))) .cse25))) (or (not (= .cse36 0)) (not (= .cse37 0))) (= (select |v_#valid_62| |v_ULTIMATE.start_main_#t~malloc61#1.base_6|) 0) (= (store |v_#memory_$Pointer$.base_134| .cse19 (store (select |v_#memory_$Pointer$.base_134| .cse19) .cse20 (select (select |v_#memory_$Pointer$.base_136| .cse19) .cse20))) |v_#memory_$Pointer$.base_136|) (= |c_#valid| (store |v_#valid_62| |v_ULTIMATE.start_main_#t~malloc61#1.base_6| 1)) (= (store |v_#memory_$Pointer$.base_136| .cse16 (store (select |v_#memory_$Pointer$.base_136| .cse16) .cse17 (select (select |v_#memory_$Pointer$.base_135| .cse16) .cse17))) |v_#memory_$Pointer$.base_135|) (= (store .cse38 .cse7 (store (select .cse38 .cse7) .cse8 (select (select |c_old(#memory_$Pointer$.offset)| .cse7) .cse8))) |c_old(#memory_$Pointer$.offset)|) (= (store |v_#memory_int_482| .cse39 (store (select |v_#memory_int_482| .cse39) .cse40 (select (select |v_#memory_int_145| .cse39) .cse40))) |v_#memory_int_145|) (= (store .cse41 .cse10 (store (select .cse41 .cse10) .cse11 (select (select |v_#memory_$Pointer$.offset_135| .cse10) .cse11))) |v_#memory_$Pointer$.offset_135|) (<= (+ |v_ULTIMATE.start_main_#t~malloc61#1.base_6| 1) |c_#StackHeapBarrier|) (= (store |v_#memory_$Pointer$.offset_134| .cse16 (store (select |v_#memory_$Pointer$.offset_134| .cse16) .cse17 (select (select |v_#memory_$Pointer$.offset_136| .cse16) .cse17))) |v_#memory_$Pointer$.offset_136|) (not (= |v_ULTIMATE.start_main_#t~malloc61#1.base_6| 0)) (= |c_#Ultimate.C_memset_#ptr.offset| .cse36) (= .cse37 |c_#Ultimate.C_memset_#ptr.base|) (= (store |v_#length_33| |v_ULTIMATE.start_main_#t~malloc61#1.base_6| 384) |c_#length|)))))) .cse0 .cse44 .cse45 .cse1 .cse2) (and .cse5 .cse0 .cse44 .cse3 .cse45 .cse1 (exists ((|v_#memory_int_51| (Array Int (Array Int Int))) (|v_#memory_int_479| (Array Int (Array Int Int))) (|v_#valid_61| (Array Int Int)) (|v_#memory_$Pointer$.base_49| (Array Int (Array Int Int))) (|v_#length_32| (Array Int Int)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| Int) (|v_ULTIMATE.start_main_~_ha_hashv~0#1_BEFORE_CALL_14| Int) (|v_#memory_int_144| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_411| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_49| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_410| (Array Int (Array Int Int))) (|v_#memory_int_481| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_410| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_411| (Array Int (Array Int Int)))) (let ((.cse47 (select |v_#memory_int_481| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|)) (.cse50 (select |v_#memory_$Pointer$.base_49| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|)) (.cse52 (select |v_#memory_$Pointer$.base_411| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|)) (.cse48 (select (select |c_old(#memory_$Pointer$.base)| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|) 8)) (.cse49 (select |v_#memory_$Pointer$.offset_49| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|)) (.cse51 (select |v_#memory_$Pointer$.offset_411| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|)) (.cse53 (select |v_#memory_int_51| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|)) (.cse46 (select |v_#memory_int_144| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|))) (and (= |v_#memory_int_481| (store |v_#memory_int_144| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store .cse46 12 (select .cse47 12)))) (= |c_old(#memory_int)| (store |v_#memory_int_481| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store .cse47 8 (select (select |c_old(#memory_int)| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|) 8)))) (not (= .cse48 0)) (= (select |v_#valid_61| .cse48) 0) (= (store |v_#memory_$Pointer$.offset_410| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store (select |v_#memory_$Pointer$.offset_410| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|) 36 (select .cse49 36))) |v_#memory_$Pointer$.offset_49|) (= (store |v_#memory_$Pointer$.base_410| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store (select |v_#memory_$Pointer$.base_410| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|) 36 (select .cse50 36))) |v_#memory_$Pointer$.base_49|) (= |c_#valid| (store |v_#valid_61| .cse48 1)) (= (store |v_#memory_$Pointer$.offset_411| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store (store (store .cse51 16 0) 12 0) 8 0)) |c_old(#memory_$Pointer$.offset)|) (= |c_#length| (store |v_#length_32| .cse48 44)) (= (store |v_#memory_$Pointer$.base_411| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store (store (store .cse52 16 0) 12 0) 8 .cse48)) |c_old(#memory_$Pointer$.base)|) (<= (+ .cse48 1) |c_#StackHeapBarrier|) (= (store |v_#memory_$Pointer$.base_49| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store (store .cse50 28 |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|) 32 (select .cse52 32))) |v_#memory_$Pointer$.base_411|) (= |v_#memory_int_51| (store |v_#memory_int_479| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store (store (select |v_#memory_int_479| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14|) 36 |v_ULTIMATE.start_main_~_ha_hashv~0#1_BEFORE_CALL_14|) 28 (select .cse53 28)))) (= |c_#Ultimate.C_memset_#ptr.base| .cse48) (= (store |v_#memory_$Pointer$.offset_49| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store (store .cse49 28 0) 32 (select .cse51 32))) |v_#memory_$Pointer$.offset_411|) (= (store |v_#memory_int_51| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_14| (store (store .cse53 32 4) 16 (select .cse46 16))) |v_#memory_int_144|)))) .cse4))))) is different from false [2024-11-09 05:24:30,630 WARN L286 SmtUtils]: Spent 2.88m on a formula simplification that was a NOOP. DAG size: 307 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:28:09,975 WARN L286 SmtUtils]: Spent 3.21m on a formula simplification that was a NOOP. DAG size: 312 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:30:29,033 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3375#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~tmp~0#1.base| 0) (= |ULTIMATE.start_main_~users~0#1.offset| 0) (= |ULTIMATE.start_main_~tmp~0#1.offset| 0) (<= 2 |ULTIMATE.start_main_~#i~0#1.base|) (= |ULTIMATE.start_main_~user~0#1.offset| 0) (= |ULTIMATE.start_main_~#i~0#1.offset| 0))' at error location [2024-11-09 05:30:29,034 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:30:29,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:30:29,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 05:30:29,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766838343] [2024-11-09 05:30:29,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:30:29,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:30:29,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:30:29,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:30:29,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1479, Unknown=79, NotChecked=80, Total=1806 [2024-11-09 05:30:29,038 INFO L87 Difference]: Start difference. First operand 126 states and 147 transitions. Second operand has 10 states, 7 states have (on average 11.571428571428571) internal successors, (81), 10 states have internal predecessors, (81), 2 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:30:31,307 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 05:30:33,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:30:35,317 WARN L539 Checker$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 05:30:37,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:30:39,220 WARN L539 Checker$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 05:30:41,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:30:43,230 WARN L539 Checker$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 05:30:45,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:30:47,241 WARN L539 Checker$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 05:30:49,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:30:51,252 WARN L539 Checker$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 05:30:58,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:31:00,322 WARN L539 Checker$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 05:31:02,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:31:05,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 05:31:05,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:31:05,700 INFO L93 Difference]: Finished difference Result 239 states and 286 transitions. [2024-11-09 05:31:05,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:31:05,705 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 11.571428571428571) internal successors, (81), 10 states have internal predecessors, (81), 2 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 77 [2024-11-09 05:31:05,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:31:05,706 INFO L225 Difference]: With dead ends: 239 [2024-11-09 05:31:05,706 INFO L226 Difference]: Without dead ends: 136 [2024-11-09 05:31:05,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 189 SyntacticMatches, 4 SemanticMatches, 48 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 596.8s TimeCoverageRelationStatistics Valid=224, Invalid=2053, Unknown=79, NotChecked=94, Total=2450 [2024-11-09 05:31:05,708 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 12 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 14 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:31:05,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 408 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 110 Invalid, 13 Unknown, 0 Unchecked, 33.6s Time] [2024-11-09 05:31:05,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-09 05:31:05,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 134. [2024-11-09 05:31:05,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 127 states have (on average 1.204724409448819) internal successors, (153), 128 states have internal predecessors, (153), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 05:31:05,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 160 transitions. [2024-11-09 05:31:05,723 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 160 transitions. Word has length 77 [2024-11-09 05:31:05,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:31:05,723 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 160 transitions. [2024-11-09 05:31:05,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 11.571428571428571) internal successors, (81), 10 states have internal predecessors, (81), 2 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 05:31:05,724 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 160 transitions. [2024-11-09 05:31:05,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 05:31:05,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:05,726 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:05,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:31:05,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 05:31:05,927 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:31:05,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:05,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1656893276, now seen corresponding path program 2 times [2024-11-09 05:31:05,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:31:05,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57163050] [2024-11-09 05:31:05,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:05,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:31:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:08,557 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-09 05:31:08,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:31:08,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57163050] [2024-11-09 05:31:08,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57163050] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:31:08,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506456594] [2024-11-09 05:31:08,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:31:08,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:31:08,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:31:08,561 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:31:08,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eff278ba-9ddd-4052-bdf9-80d8df4df64e/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process