./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E --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 fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:29:29,681 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:29:29,770 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:29:29,775 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:29:29,776 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:29:29,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:29:29,799 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:29:29,800 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:29:29,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:29:29,800 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:29:29,800 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:29:29,801 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:29:29,801 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:29:29,801 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:29:29,801 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:29:29,801 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:29:29,801 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:29:29,801 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:29:29,802 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:29:29,802 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:29:29,802 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:29:29,802 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:29:29,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:29:29,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:29:29,803 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:29:29,803 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:29:29,803 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:29:29,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:29:29,804 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:29:29,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:29:29,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:29:29,804 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:29:29,804 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:29:29,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:29:29,805 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:29:29,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:29:29,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:29:29,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:29:29,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:29:29,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:29:29,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:29:29,806 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:29:29,806 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:29:29,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:29:29,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:29:29,806 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:29:29,806 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:29:29,806 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E 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 -> fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 [2024-11-14 03:29:30,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:29:30,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:29:30,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:29:30,132 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:29:30,132 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:29:30,134 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test1-1.i Unable to find full path for "g++" [2024-11-14 03:29:32,262 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:29:32,725 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:29:32,726 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test1-1.i [2024-11-14 03:29:32,755 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/data/0cde4384d/78774f84c12c4b3789fac835f374929c/FLAG53e37e5fb [2024-11-14 03:29:32,784 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/data/0cde4384d/78774f84c12c4b3789fac835f374929c [2024-11-14 03:29:32,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:29:32,789 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:29:32,791 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:29:32,792 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:29:32,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:29:32,805 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:29:32" (1/1) ... [2024-11-14 03:29:32,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ef9699f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:32, skipping insertion in model container [2024-11-14 03:29:32,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:29:32" (1/1) ... [2024-11-14 03:29:32,880 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:29:33,406 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_01cc4e2c-890f-4b19-97d1-17d5301b6562/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test1-1.i[33519,33532] [2024-11-14 03:29:33,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:29:33,559 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:29:33,647 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_01cc4e2c-890f-4b19-97d1-17d5301b6562/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test1-1.i[33519,33532] [2024-11-14 03:29:33,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:29:33,830 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:29:33,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:33 WrapperNode [2024-11-14 03:29:33,832 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:29:33,833 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:29:33,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:29:33,835 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:29:33,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:33" (1/1) ... [2024-11-14 03:29:33,882 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:33" (1/1) ... [2024-11-14 03:29:33,969 INFO L138 Inliner]: procedures = 176, calls = 169, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 779 [2024-11-14 03:29:33,970 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:29:33,970 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:29:33,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:29:33,971 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:29:33,985 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:33" (1/1) ... [2024-11-14 03:29:33,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:33" (1/1) ... [2024-11-14 03:29:33,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:33" (1/1) ... [2024-11-14 03:29:34,002 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:33" (1/1) ... [2024-11-14 03:29:34,064 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:33" (1/1) ... [2024-11-14 03:29:34,083 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:33" (1/1) ... [2024-11-14 03:29:34,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:33" (1/1) ... [2024-11-14 03:29:34,096 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:33" (1/1) ... [2024-11-14 03:29:34,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:29:34,112 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:29:34,112 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:29:34,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:29:34,115 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:33" (1/1) ... [2024-11-14 03:29:34,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:29:34,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:29:34,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:29:34,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:29:34,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:29:34,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:29:34,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 03:29:34,219 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 03:29:34,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:29:34,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:29:34,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 03:29:34,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 03:29:34,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:29:34,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:29:34,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:29:34,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:29:34,511 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:29:34,513 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:29:36,131 INFO L? ?]: Removed 191 outVars from TransFormulas that were not future-live. [2024-11-14 03:29:36,131 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:29:37,244 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:29:37,245 INFO L316 CfgBuilder]: Removed 31 assume(true) statements. [2024-11-14 03:29:37,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:29:37 BoogieIcfgContainer [2024-11-14 03:29:37,245 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:29:37,248 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:29:37,249 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:29:37,254 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:29:37,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:29:32" (1/3) ... [2024-11-14 03:29:37,255 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d00e3ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:29:37, skipping insertion in model container [2024-11-14 03:29:37,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:29:33" (2/3) ... [2024-11-14 03:29:37,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d00e3ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:29:37, skipping insertion in model container [2024-11-14 03:29:37,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:29:37" (3/3) ... [2024-11-14 03:29:37,258 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_nondet_test1-1.i [2024-11-14 03:29:37,272 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:29:37,273 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_nondet_test1-1.i that has 2 procedures, 62 locations, 1 initial locations, 19 loop locations, and 1 error locations. [2024-11-14 03:29:37,334 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:29:37,347 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;@7f4694c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:29:37,347 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:29:37,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 56 states have (on average 1.7142857142857142) internal successors, (96), 57 states have internal predecessors, (96), 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) [2024-11-14 03:29:37,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 03:29:37,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:37,357 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 03:29:37,358 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:29:37,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:37,363 INFO L85 PathProgramCache]: Analyzing trace with hash 793915903, now seen corresponding path program 1 times [2024-11-14 03:29:37,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:37,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442329620] [2024-11-14 03:29:37,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:37,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:37,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:29:37,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:37,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442329620] [2024-11-14 03:29:37,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442329620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:37,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:37,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:29:37,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273334039] [2024-11-14 03:29:37,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:37,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:29:37,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:37,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:29:37,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:29:37,572 INFO L87 Difference]: Start difference. First operand has 62 states, 56 states have (on average 1.7142857142857142) internal successors, (96), 57 states have internal predecessors, (96), 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2024-11-14 03:29:39,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:29:41,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:29:43,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:29:45,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:29:47,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:29:49,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:49,299 INFO L93 Difference]: Finished difference Result 175 states and 294 transitions. [2024-11-14 03:29:49,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:29:49,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2024-11-14 03:29:49,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:49,311 INFO L225 Difference]: With dead ends: 175 [2024-11-14 03:29:49,311 INFO L226 Difference]: Without dead ends: 112 [2024-11-14 03:29:49,314 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 [2024-11-14 03:29:49,319 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 53 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:49,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 108 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 4 Unknown, 0 Unchecked, 11.7s Time] [2024-11-14 03:29:49,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-14 03:29:49,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 61. [2024-11-14 03:29:49,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 56 states have internal predecessors, (64), 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) [2024-11-14 03:29:49,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2024-11-14 03:29:49,363 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 5 [2024-11-14 03:29:49,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:49,364 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2024-11-14 03:29:49,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2024-11-14 03:29:49,365 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2024-11-14 03:29:49,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-14 03:29:49,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:49,368 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:29:49,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:29:49,369 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:29:49,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:49,370 INFO L85 PathProgramCache]: Analyzing trace with hash 889166052, now seen corresponding path program 1 times [2024-11-14 03:29:49,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:49,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191529828] [2024-11-14 03:29:49,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:49,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:50,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:29:50,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:50,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191529828] [2024-11-14 03:29:50,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191529828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:50,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:50,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:29:50,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988388248] [2024-11-14 03:29:50,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:50,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:29:50,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:50,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:29:50,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:29:50,041 INFO L87 Difference]: Start difference. First operand 61 states and 70 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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) [2024-11-14 03:29:52,081 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 [] [2024-11-14 03:29:54,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:29:56,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:29:58,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:30:00,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:30:02,223 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 [] [2024-11-14 03:30:02,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:02,751 INFO L93 Difference]: Finished difference Result 134 states and 154 transitions. [2024-11-14 03:30:02,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:30:02,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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 32 [2024-11-14 03:30:02,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:02,756 INFO L225 Difference]: With dead ends: 134 [2024-11-14 03:30:02,756 INFO L226 Difference]: Without dead ends: 75 [2024-11-14 03:30:02,757 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 [2024-11-14 03:30:02,758 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 4 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:02,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 102 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 6 Unknown, 0 Unchecked, 12.7s Time] [2024-11-14 03:30:02,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-14 03:30:02,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-14 03:30:02,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 70 states have (on average 1.1285714285714286) internal successors, (79), 70 states have internal predecessors, (79), 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) [2024-11-14 03:30:02,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2024-11-14 03:30:02,771 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 32 [2024-11-14 03:30:02,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:02,772 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2024-11-14 03:30:02,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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) [2024-11-14 03:30:02,773 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2024-11-14 03:30:02,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-14 03:30:02,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:02,774 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 03:30:02,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:30:02,775 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:30:02,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:02,776 INFO L85 PathProgramCache]: Analyzing trace with hash 518459890, now seen corresponding path program 1 times [2024-11-14 03:30:02,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:02,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28941249] [2024-11-14 03:30:02,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:02,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:03,432 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:30:03,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:03,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28941249] [2024-11-14 03:30:03,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28941249] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:30:03,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517690825] [2024-11-14 03:30:03,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:03,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:30:03,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:30:03,441 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:30:03,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:30:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:03,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:30:03,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:30:04,097 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:30:04,097 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:30:04,282 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-14 03:30:04,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517690825] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:30:04,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1610097109] [2024-11-14 03:30:04,314 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 03:30:04,315 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:30:04,318 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:30:04,324 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:30:04,325 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:30:11,045 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 117 for LOIs [2024-11-14 03:30:11,121 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:30:25,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1610097109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:25,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:30:25,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4, 4] total 17 [2024-11-14 03:30:25,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455028087] [2024-11-14 03:30:25,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:25,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 03:30:25,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:25,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 03:30:25,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=186, Unknown=6, NotChecked=0, Total=272 [2024-11-14 03:30:25,175 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand has 13 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:30:27,230 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 [0] [2024-11-14 03:30:29,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:30:31,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:30:34,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:30:36,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:30:38,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:30:40,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:30:42,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:30:44,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:30:46,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:30:48,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:30:50,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:30:52,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:30:54,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:30:56,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:30:58,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:31:00,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:31:03,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:31:05,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:31:07,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:31:16,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:31:18,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:31:20,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:31:22,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:31:24,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:31:26,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:31:28,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:31:30,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:31:32,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:31:34,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:31:36,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:31:38,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:31:40,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:31:41,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:31:48,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 03:31:48,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:31:48,179 INFO L93 Difference]: Finished difference Result 147 states and 170 transitions. [2024-11-14 03:31:48,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:31:48,186 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-14 03:31:48,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:31:48,189 INFO L225 Difference]: With dead ends: 147 [2024-11-14 03:31:48,189 INFO L226 Difference]: Without dead ends: 77 [2024-11-14 03:31:48,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=80, Invalid=186, Unknown=6, NotChecked=0, Total=272 [2024-11-14 03:31:48,190 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 5 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 1 mSolverCounterUnsat, 37 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 37 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:31:48,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 389 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 424 Invalid, 37 Unknown, 0 Unchecked, 82.9s Time] [2024-11-14 03:31:48,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-14 03:31:48,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-14 03:31:48,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 71 states have (on average 1.1126760563380282) internal successors, (79), 71 states have internal predecessors, (79), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 03:31:48,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2024-11-14 03:31:48,213 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 87 transitions. Word has length 45 [2024-11-14 03:31:48,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:31:48,214 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 87 transitions. [2024-11-14 03:31:48,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:31:48,214 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 87 transitions. [2024-11-14 03:31:48,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 03:31:48,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:31:48,220 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 03:31:48,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:31:48,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:31:48,421 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:31:48,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:31:48,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1635543782, now seen corresponding path program 1 times [2024-11-14 03:31:48,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:31:48,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130762048] [2024-11-14 03:31:48,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:48,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:31:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:48,933 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 03:31:48,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:31:48,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130762048] [2024-11-14 03:31:48,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130762048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:31:48,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397365101] [2024-11-14 03:31:48,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:31:48,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:31:48,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:31:48,937 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:31:48,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:31:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:31:49,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:31:49,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:31:49,577 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 03:31:49,578 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:31:49,867 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 03:31:49,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397365101] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:31:49,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1362664063] [2024-11-14 03:31:49,871 INFO L159 IcfgInterpreter]: Started Sifa with 42 locations of interest [2024-11-14 03:31:49,872 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:31:49,872 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:31:49,873 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:31:49,873 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:32:17,339 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 155 for LOIs [2024-11-14 03:32:17,544 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:32:46,336 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8)) (.cse3 (exists ((|v_#Ultimate.C_memset_#t~loopctr160_27| Int)) (and (<= 0 |v_#Ultimate.C_memset_#t~loopctr160_27|) (<= 384 (mod |v_#Ultimate.C_memset_#t~loopctr160_27| 4294967296)))))) (or (and (exists ((|v_old(#memory_$Pointer$.offset)_AFTER_CALL_20| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_20| (Array Int (Array Int Int)))) (let ((.cse0 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_20| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (.cse1 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_20| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_20| .cse0) .cse1) |c_ULTIMATE.start_main_#t~mem64#1.base|) (= |c_ULTIMATE.start_main_#t~mem64#1.offset| (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_20| .cse0) .cse1))))) .cse3) (and (exists ((|v_old(#memory_$Pointer$.base)_AFTER_CALL_19| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| (Array Int (Array Int Int)))) (let ((.cse4 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_19| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (.cse5 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (= (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19| .cse4) .cse5) |c_ULTIMATE.start_main_#t~mem64#1.offset|) (= (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_19| .cse4) .cse5) |c_ULTIMATE.start_main_#t~mem64#1.base|)))) .cse3))) is different from true [2024-11-14 03:32:47,211 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1302#true' at error location [2024-11-14 03:32:47,212 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:32:47,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:32:47,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-14 03:32:47,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006220788] [2024-11-14 03:32:47,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:32:47,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:32:47,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:32:47,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:32:47,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=422, Unknown=14, NotChecked=42, Total=552 [2024-11-14 03:32:47,214 INFO L87 Difference]: Start difference. First operand 77 states and 87 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 03:32:49,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:32:51,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:32:53,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:32:55,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:32:57,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:32:59,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:33:01,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:33:03,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:33:05,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:33:06,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:33:08,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:33:10,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:33:12,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:33:14,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:33:16,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:33:18,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 03:33:20,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 03:33:22,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 03:33:24,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 03:33:24,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:33:24,332 INFO L93 Difference]: Finished difference Result 218 states and 252 transitions. [2024-11-14 03:33:24,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:33:24,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2024-11-14 03:33:24,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:33:24,334 INFO L225 Difference]: With dead ends: 218 [2024-11-14 03:33:24,334 INFO L226 Difference]: Without dead ends: 214 [2024-11-14 03:33:24,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 115 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 29.7s TimeCoverageRelationStatistics Valid=74, Invalid=422, Unknown=14, NotChecked=42, Total=552 [2024-11-14 03:33:24,335 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 169 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:33:24,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 221 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 15 Unknown, 0 Unchecked, 37.1s Time] [2024-11-14 03:33:24,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-14 03:33:24,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2024-11-14 03:33:24,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 200 states have (on average 1.105) internal successors, (221), 199 states have internal predecessors, (221), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 03:33:24,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 245 transitions. [2024-11-14 03:33:24,359 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 245 transitions. Word has length 46 [2024-11-14 03:33:24,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:33:24,359 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 245 transitions. [2024-11-14 03:33:24,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 03:33:24,360 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 245 transitions. [2024-11-14 03:33:24,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-14 03:33:24,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:33:24,363 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:33:24,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 03:33:24,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:33:24,564 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:33:24,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:33:24,564 INFO L85 PathProgramCache]: Analyzing trace with hash 2099405385, now seen corresponding path program 1 times [2024-11-14 03:33:24,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:33:24,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813592792] [2024-11-14 03:33:24,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:24,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:33:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:25,711 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-14 03:33:25,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:33:25,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813592792] [2024-11-14 03:33:25,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813592792] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:33:25,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311193719] [2024-11-14 03:33:25,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:25,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:33:25,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:33:25,715 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:33:25,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:33:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:26,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 1207 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:33:26,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:33:27,013 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 03:33:27,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:33:27,652 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-14 03:33:27,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311193719] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:33:27,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1743365159] [2024-11-14 03:33:27,655 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2024-11-14 03:33:27,655 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:33:27,655 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:33:27,655 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:33:27,655 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:33:40,966 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 157 for LOIs [2024-11-14 03:33:41,180 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:34:05,447 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse3 (exists ((|v_#Ultimate.C_memset_#t~loopctr160_41| Int)) (and (<= 384 (mod |v_#Ultimate.C_memset_#t~loopctr160_41| 4294967296)) (<= 0 |v_#Ultimate.C_memset_#t~loopctr160_41|)))) (.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (or (and (exists ((|v_old(#memory_$Pointer$.offset)_AFTER_CALL_31| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.base)_AFTER_CALL_31| (Array Int (Array Int Int)))) (let ((.cse0 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_31| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (.cse1 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_31| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (= |c_ULTIMATE.start_main_#t~mem64#1.base| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_31| .cse0) .cse1)) (= |c_ULTIMATE.start_main_#t~mem64#1.offset| (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_31| .cse0) .cse1))))) .cse3) (and .cse3 (exists ((|v_old(#memory_$Pointer$.base)_AFTER_CALL_32| (Array Int (Array Int Int))) (|v_old(#memory_$Pointer$.offset)_AFTER_CALL_32| (Array Int (Array Int Int)))) (let ((.cse4 (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_32| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (.cse5 (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_32| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (= |c_ULTIMATE.start_main_#t~mem64#1.base| (select (select |v_old(#memory_$Pointer$.base)_AFTER_CALL_32| .cse4) .cse5)) (= (select (select |v_old(#memory_$Pointer$.offset)_AFTER_CALL_32| .cse4) .cse5) |c_ULTIMATE.start_main_#t~mem64#1.offset|))))))) is different from true [2024-11-14 03:34:05,463 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_#memory_$Pointer$.offset_435| (Array Int (Array Int Int))) (|v_#memory_int_490| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_435| (Array Int (Array Int Int)))) (let ((.cse3 (+ |c_ULTIMATE.start_main_~users~0#1.offset| 8))) (let ((.cse0 (select (select |v_#memory_$Pointer$.base_435| |c_ULTIMATE.start_main_~users~0#1.base|) .cse3)) (.cse1 (+ 12 (select (select |v_#memory_$Pointer$.offset_435| |c_ULTIMATE.start_main_~users~0#1.base|) .cse3)))) (and (= |c_#memory_$Pointer$.offset| (store |v_#memory_$Pointer$.offset_435| .cse0 (store (select |v_#memory_$Pointer$.offset_435| .cse0) .cse1 (select (select |c_#memory_$Pointer$.offset| .cse0) .cse1)))) (= (store |v_#memory_int_490| .cse0 (let ((.cse2 (select |v_#memory_int_490| .cse0))) (store .cse2 .cse1 (+ (select .cse2 .cse1) 1)))) |c_#memory_int|) (= (store |v_#memory_$Pointer$.base_435| .cse0 (store (select |v_#memory_$Pointer$.base_435| .cse0) .cse1 (select (select |c_#memory_$Pointer$.base| .cse0) .cse1))) |c_#memory_$Pointer$.base|))))) is different from true [2024-11-14 03:34:29,956 WARN L286 SmtUtils]: Spent 9.84s on a formula simplification. DAG size of input: 172 DAG size of output: 159 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:34:30,348 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2199#true' at error location [2024-11-14 03:34:30,348 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:34:30,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:34:30,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2024-11-14 03:34:30,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139956891] [2024-11-14 03:34:30,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:34:30,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 03:34:30,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:34:30,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 03:34:30,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=783, Unknown=18, NotChecked=118, Total=1056 [2024-11-14 03:34:30,351 INFO L87 Difference]: Start difference. First operand 214 states and 245 transitions. Second operand has 15 states, 15 states have (on average 19.266666666666666) internal successors, (289), 15 states have internal predecessors, (289), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 03:34:32,434 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 [] [2024-11-14 03:34:34,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:34:36,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:34:38,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:34:40,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:34:42,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:34:44,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:34:46,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:34:48,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:34:51,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:34:53,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:34:55,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:34:57,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:34:59,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:01,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:03,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:05,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:07,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:09,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:11,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:13,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:15,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:17,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:19,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:21,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:23,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:25,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:27,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:29,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:32,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:34,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:36,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:38,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:40,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:42,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:44,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:46,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:48,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:50,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:52,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:55,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:57,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:35:59,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:36:01,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:36:03,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 03:36:09,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 03:36:10,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 03:36:12,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 03:36:14,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 03:36:16,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:36:16,290 INFO L93 Difference]: Finished difference Result 593 states and 684 transitions. [2024-11-14 03:36:16,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-14 03:36:16,298 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 19.266666666666666) internal successors, (289), 15 states have internal predecessors, (289), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 127 [2024-11-14 03:36:16,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:36:16,301 INFO L225 Difference]: With dead ends: 593 [2024-11-14 03:36:16,301 INFO L226 Difference]: Without dead ends: 446 [2024-11-14 03:36:16,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 348 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 50.2s TimeCoverageRelationStatistics Valid=332, Invalid=1550, Unknown=18, NotChecked=170, Total=2070 [2024-11-14 03:36:16,307 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 686 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 30 mSolverCounterUnsat, 44 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 44 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:36:16,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 432 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 397 Invalid, 44 Unknown, 0 Unchecked, 105.1s Time] [2024-11-14 03:36:16,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-11-14 03:36:16,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2024-11-14 03:36:16,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 432 states have (on average 1.0972222222222223) internal successors, (474), 431 states have internal predecessors, (474), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 03:36:16,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 498 transitions. [2024-11-14 03:36:16,358 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 498 transitions. Word has length 127 [2024-11-14 03:36:16,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:36:16,359 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 498 transitions. [2024-11-14 03:36:16,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 19.266666666666666) internal successors, (289), 15 states have internal predecessors, (289), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 03:36:16,359 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 498 transitions. [2024-11-14 03:36:16,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-14 03:36:16,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:36:16,370 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:36:16,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 03:36:16,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:36:16,571 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:36:16,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:36:16,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1920866, now seen corresponding path program 1 times [2024-11-14 03:36:16,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:36:16,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516241589] [2024-11-14 03:36:16,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:16,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:41:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:41:15,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1213 backedges. 109 proven. 4 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2024-11-14 03:41:15,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:41:15,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516241589] [2024-11-14 03:41:15,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516241589] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:41:15,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956067545] [2024-11-14 03:41:15,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:41:15,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:41:15,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:41:15,207 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:41:15,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01cc4e2c-890f-4b19-97d1-17d5301b6562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process